Which Performance Chip do you have?

[Z Factor]

For those of you who have changed your stock chip/PROM, which tuners chip did you go with and why?

I will try to list all the tuners chips in the poll. If yours is not represented, let me know so I can update it.

:cheers:

[blackjack]

i have the gm improved chip...i know this is not an official performance chip,but since it made the car much more civilized,and a tad more powerful,i thought id mention it...best bang for the buck (90.00 cdn.)

jack
91red...1735

[Kevin]

Haibeck chip here

[RICHARD TILL]

ABOUT 5 YEARS AGO I REPLACED MY CHIP WITH A STOCK GM. COST WAS 40SOMETHING DOLLARS. MOTOR WOULD NOT RETURN TO IDLE WAS THE ONLY PROBLEM.........RICHARD TILL.... 90-ZR1 RED/RED NO-2161. ITS GOT 108K ON IT NOW AND AM WONDERING HOW FAR FROM HOME I SHOULD GET WITH IT.

[Fort94z]

I have the Rippie(DRM) chip. It was put in by the Vette Doctors.

[bobbyhi]

I also have the Haibeck chip:)

[Nick]

I have a Haibeck chip. Marc is the best in the business. :thumbsup:

[ShawnZR-1]

Mike's from ESS here! He sold me my headers and he's been a wealth of information.

[1990 quasar blue]

HAT here, his reputation speaks for itself. :thumbsup:

[91Mike]

I replaced my starter a couple of winters ago and sent the top end to DRM who ported/polished it and burnt a new chip. The power increase is very noticable.
Mike

91 Z with DRM top end,K&N, Borla, Fikse 10 & 13" FM5's with 275 & 335, VBP slotted and drilled rotors with GS calipers and re-valved Bilstiens.

[40th#381]

I have a Marc Randolph Special flashed on my stock 93.

371 RWH @ BG Dyno.

Jan

[We Gone]

Another vote for Marc Haibeck, put it in this weekend and went around the block, came back about 200 miles later.:thumbsup:

[A1990]

Dyno tuned chip by HAT:thumbsup:

[W i l l]

I have a Todd Pepmeir chip with which I am VERY pleased. Todd has done wonders breaking down the code and understanding every part of it. I also have a couple of Lingenfelter Performance Engineering chips for my LPE415 car, and a Marc Randolph chip.Will

[frank12]

Nobody has a chip programmed by Team ZR1 (Mr. Jonh Rouner)?
To comment results.
I have one and not you that to say to the respect of the programming.
Greetings

[frank12]

Nobody has a chip programmed by Team ZR1 (Mr. Jonh Rouner)?
To comment results.
I have one and not you that to say to the respect of the programming.
Greetings

[Zr1 Destroyer]

Doug Rippie is the man with the plan!!!!:thumbsup:

"90"zr1 w/ported top end(R.I.P.)
"91"zr1 DRM368(still shinny side up):bootyshak

[moesvette]

I have one from Haibeck on my 90. Works great.

[gngsmoothly]

You don't have the right choices listed, most of what you have are out of box generic tunes, only one guy I know does reach custom stuff, http://teamzr1.com/main.html . He actually consults with you and tunes the car from diagnostic information provided by a scan tool. I have had him do two cars for me and both have been hones 15hp rwhp, but more importantly 20ft lbs of torque increase.

[Z Factor]

You don't have the right choices listed, most of what you have are out of box generic tunes, only one guy I know does reach custom stuff, http://teamzr1.com/main.html . He actually consults with you and tunes the car from diagnostic information provided by a scan tool. I have had him do two cars for me and both have been hones 15hp rwhp, but more importantly 20ft lbs of torque increase.

Hello, and welcome to the forum. :handshak:

I will be happy to add the tuner you linked. :thumbsup:
However there are custom tuners listed in the poll.

:cheers:

[95ZR1#418]

I have a Haibeck chip. Marc is the best in the business. :thumbsup:

I'm with Nick on that one.....
:mrgreen:

[Z Factor]

Some of the tuners will recalibrate their chips at least once free of charge, while others charge each and every time. As a matter of fact, one of the popular tuners charges extra to begin with if they take their existing chip off of the shelf and recalibrate it if you have headers. Their standard chip reduces fueling by half of the stock setting, but with headers they recommend you have the 6% rich fuel delivery, so they charge extra on top of their price to do it.

The question is did you take that into consideration when buying a chip from them?

Have you needed to have your chip recalibrated for any reason?

:cheers:

[cwmoss]

When I bought my car, the previous owner told me it had been chipped. I found it to be a "Corvette Consultant chip". I talked to the original owner to find out what the chip did and he said that the skip shift feature was all he could recall. I wanted to see what the latest factory chip did, so I bought one and now the skip shift is back, but the car runs so much better. It is staying in, and I'm getting a cags plug for the skip shift elimination.

[John Boothby]

I bought my car in May of 05. I knew that it had a chip in it, as the fellow that I bought it from stated so. However, he did not know what chip it had, as the guy he bought it from had it installed. Well, I just got off the phone with this previous owner and found out that it is a DRM (Doug Rippie) chip. Now, I don't know the difference between these chips, but from the poll it looks like a popular chip. I do know that the car runs great!


John B.
1990 #148 red/saddle 68,500 miles.
DRM chip/K&N/Flowmasters/RC 205's

[ZR-1 Mack]

I'm pretty sure mine is stock, but the car does have a manual fan switch and remote access that are aftermarket so maybe the chip was also swapped out

Is there an easy way to tell if its stock ? I know the power key isn't bypassed but never thought to check until now

[threestar40]

Mine is z-industries. Does anyone know who that is or if they are still in business?

I've done a little research but with no real results.

Rick =)

[buddyboy]

I just put in a Haibeck chip. It worked just as it was advertised. Mark is the man.:worship:


1992 ZR1 #330 White/White

[Z Factor]

Mine is z-industries. Does anyone know who that is or if they are still in business?

I've done a little research but with no real results.

Rick =)

I missed this post otherwise I would have given you the information.
Z-Industries is owned by Ron Zimmer and was located at 18032-C Lemon Dr., Yorba Linda, CA 92686. However I believe he moved his operation to Temecula, CA. I do not have a current phone# for him, but you may want to try contacting Carrol Shelby International since Ron has done work with them on occasion. I believe their # is 310-914-1843

Ron had a great reputation as a top notch tuner so your Z-Industries chip should be one of the better ones out there.

:cheers:

[Z Factor]

I just got hold of Ron since I was curious what he was up to. He did move his shop to Temecula Ca, and his website link is below.

http://www.z-industries.com/

:cheers:

[threestar40]

Thanks, That's very helpful, I've always wondered about it. My car runs awesome, never felt like I needed a better tune.

Thanks again,

Rick =) :thumbsup: :cheers:

[haber rj]

I have a SGC chip and we are waiting dyno time to see what improvements were made.
haber rj

[WB9MCW]

I have a custom chip from a tuner but I swore not to ever say who it is...i know this is strange but they were not interested in selling except to others(zr-1 owners) he does work on...suffice it to say i was very happy with the results. I'll just call it the special P chip. it cost me one c note! best and cheapest mod on my Zr-1. Fans kick on a 180f no more cags and rev lim. bumped up a bit, squaks into 2nd and chirps em in third now!!! Very happy camper!!!

[janozr1]

Haibeck !
janozr1

[ZR1 MK]

I had a Corvette Consultant, but currently have a DRM and therefore voted DRM. I will have an EES for my new EES engine.

[WB9MCW]

Hey ZR1 MK an ESS engine? Prey tell what magic did Mike do for your LT-5...inquiring minds wanna know??? WILL IT BE A MEAN GREEN LT-5???:mrgreen:

http://www.acsvette.com/joesgreenlt5.JPG

[ZR1 MK]

Bryan
Thats a quite a wild color. Is that your engine? I bought a 1995 engine for Mike to do his magic. My current engine will be keep as a spare or sold down the road. As of know, it will be a 427.

[WB9MCW]

no that is the one at his site...wish i had an ess motor...maybe sumday:-({|=

[nowa]

DRM Chip here on my 90th.

norbert

[wdo-mkr]

Corey Henderson Engineering special. No secondaries.

[Z Factor]

Corey Henderson Engineering special. No secondaries.

I added Corey so that you and others could list your chip in the poll.

:cheers:

[LuxZ]

hi there

I had my chip reprogrammed by Geoff in the UK when installing his headers and carbon air intake. The car has no other engine or transmission mods and it has surprised many many corvette owners so far here, in terms of added performance.
;)

[WB9MCW]

I bet that JEAL chip snorts well :thumbsup:

[cward]

I have several different chips. One by Z-Industries, the first chip I put in and it seemed pretty good. Later dyno tuned 2 chips by Marc Randolph, one for street gas and one for race gas. Learned that the Z-Industries chip threw tons of advance in and was really a little too much. MR chip was spectacular and the chip I used most was the race gas chip. That was the chip that took most of one day on the dyno. It was also the chip that was in the car when it ran 200+ mph. I still have all three chips and a stock chip.

[WB9MCW]

What happened to #364 Curtis? Was it quite the surprise to go over the 200 mark for you? What other mods did you have to get it there? TIA for the answers I'm sure others here will be interested to hear the details also!

If you can do a nice little write up and a pic of the ZR-1 I would like to include it on my tribute site for the ZR-1 see my car domain web site link in my sig. Scroll to the bottom on the 1st page to see where I would put it! Don't miss p4 as well!

[cward]

Hi Brian,

#364 died at BG in May 2002. I let a friend drive it at the autocross and he hit the concrete wall at about 45 mph. The story about #364 is pretty well known on the list. In April 2002, I was clocked on Radar at BBORR at 201 mph. If you want pictures and story, please email me at curtis.ward@gmail.com and I will email you back.

[FU]

Hey Curtis :hello:

[cward]

Hi Frank. :-)

[carnold]

I am looking for a new chip for my 90 that solves the shift problem and improves performance in an otherwise stock LT5. Any suggestions?

[Z Factor]

I am looking for a new chip for my 90 that solves the shift problem and improves performance in an otherwise stock LT5. Any suggestions?

As you can see by the poll most people have gone with either a Marc Haibeck or DRM chip, though most would recommend Marc. You do not live all that far from Aaron at SGC so you might want to give him a call for your tuning needs.

:cheers:

[carnold]

Sent SGC an email and talked to Aaron on the phone. He asked me to call back on Monday a week ago and got an answering machine. He never returned my call so I guess he is to busy to help so I will look elsewhere. Thanks. Do you have a web site or phone number of the other 2 so I can just call or email and order a chip?

[Z Factor]

Sent SGC an email and talked to Aaron on the phone. He asked me to call back on Monday a week ago and got an answering machine. He never returned my call so I guess he is to busy to help so I will look elsewhere. Thanks. Do you have a web site or phone number of the other 2 so I can just call or email and order a chip?

You must have caught him during a very busy time because I personally know him to be willing to spend great deals of his time talking and answering questions for ZR-1 owners, even if he will not be seeing the work. I do know he is less likely to respond to emails, so try giving him another call before throwing in the towel. Just let him know what happened and he will take some time with you.

As to the two mentioned earlier, here are their websites.

http://www.dougrippie.com/

http://www.zr1specialist.com/index.htm

:cheers:

[40th#381]

p

[carnold]

I am sure he was just busy because he has an excellent reputation. I will try again down the road.

[blackjack]

for a completely stock engine,the gm improved chip is hard to beat,and the cheapest...i bought mine for under 100 dollars cdn,and the car runs much better with it...jmo,anyway
blackjack

[carnold]

But will the stock chip solve the 1st. gear to 4th problem? What is a good source?

[blackjack]

yes,it does cancel the 1-4 shift idiocy,and lowers underhood temperature,resulting in slightly more power..it also improves the idle quality...any gm dealer should be able to order it for you...i dont know the part number,but the description should say AYBK,or something similar,and was part of a service bulletin issued from gm,for customers complaining about bad idle and lack of power when hot..im no zr-1 guru,but it did make my car happy :)
blackjack
sent from my black dial telephone !!

[Tyler Townsley]

yes,it does cancel the 1-4 shift idiocy,and lowers underhood temperature,resulting in slightly more power..it also improves the idle quality...any gm dealer should be able to order it for you...i dont know the part number,but the description should say AYBK,or something similar,and was part of a service bulletin issued from gm,for customers complaining about bad idle and lack of power when hot..im no zr-1 guru,but it did make my car happy :)
blackjack
sent from my black dial telephone !!

No stock chips disable the 1 4 shift pattern, its a epa thing. To my knowledge they do not change the temp on for fans in this calibration, it does address the other problems noted.

The only way to address the 1 4 thing is to disconnect the wires from the sensor or have a tuner disable it in the calibration, same with the fan on temps.

Tyler

[blackjack]

i bought this improved calibration after reading mark haybeck`s site...my car`s 1-4 shift was disabled after installing the new calibration.as mark said it would..you can read the results on mark`s site under calibration for 1990..imo,its the best bang for the buck,for a stocker....mark also said 10%more torque because of more consistent underhood temperature,although i never mentionned the fans...jmo,anyway
blackjack

[carnold]

I was planning on buying Mark's chip. Is there anything to do other than opening the ECM and changing chips?

[Peaven]

I was planning on buying Mark's chip. Is there anything to do other than opening the ECM and changing chips?

No....it's very easy. Here's a link to Mark's presentation on the subject from his website....good luck.

http://www.zr1specialist.com/HAT%20Web/presentations/Calibrations.pdf

[Tyler Townsley]

i bought this improved calibration after reading mark haybeck`s site...my car`s 1-4 shift was disabled after installing the new calibration.as mark said it would..you can read the results on mark`s site under calibration for 1990..imo,its the best bang for the buck,for a stocker....mark also said 10%more torque because of more consistent underhood temperature,although i never mentionned the fans...jmo,anyway
blackjack

The stock calibration AYBK does not do anything about the 1 4 shift and the fans. Marc calibration which he calls AYBKG makes those changes and provides some other performance enhancments based on his experience in tuning the LT5.

So buying a AYBK chip/calibration from a dealer will NOT eliminate the skip shift. Marcs calibration is an excellent choice.

Tyler

[tpepmeie]

i bought this improved calibration after reading mark haybeck`s site...

Ahhh. So you bought Marc's calibration, not the GM one.

Many probably read your post as buying the stock factory replacement calibration. In which case, as Tyler said, the 1-4 would not be disabled, nor would any appreciable change be made to the fan on temps.

Any chip purchased from a GM dealer would not have the "enhancements" which Marc provides. Although he starts with the most recent GM service replacement cal, he does make several changes, as noted on his website.

Todd

[blackjack]

thats where the difference is...i always tought marc was selling the chip stock from gm....thank you guys for explaining to me:-D
bj

[HADI-ZR1]

the chip which i had on my zr1 90 was DRM, was really powerful you can notice it! i already bought another DRM when the car was in the way to be ship to me from USA, when i wanted fix the DRM chip which i bought i saw another DRM were already in ECM !!!:p

[Hib Halverson]

I don't know how often folks look at this thread, but I see early in '06 there were some people posting that they needed contact information for Ron Zimmer's Z-Industries.

The email is remmizr@aol.com. The telephone number is 951.303.6857. If you are in So. California and want custom dyno tuning of calibrations, call Drew Zimmer at 951.973.3235. Z-Indstries physical address is: 31200 Santiago Rd., Temecula CA 92592

I have tested LT5 calibrations from DRM, Marc Randolph, Leonhardt Automotive, Jeal and Z-Industries, however, these tests are not recent, having been conducted in 1998. At the time, the Z-Industries calibration made the most power and drove the best.

I would like to run some of the same testing with one of Marc Haibeck's cals but it's going to be awhile, yet, before Barney (my purple project car) gets back on the chassis dyno.

[Z Factor]

I have tested LT5 calibrations from DRM, Marc Randolph, Leonhardt Automotive, Jeal and Z-Industries, however, these tests are not recent, having been conducted in 1998. At the time, the Z-Industries calibration made the most power and drove the best.

I would like to run some of the same testing with one of Marc Haibeck's cals but it's going to be awhile, yet, before Barney (my purple project car) gets back on the chassis dyno.

I remember reading a while back someone taking out their Z-Industries chip and trying a different one. They felt a loss and went back to it.

I think everyone would enjoy reading about a current "chip off":mrgreen: when you get the time.:thumbsup:

:cheers:

[Bill]

The chip in my car was changed some time before I bought it. Now the problem is I don't know who programed it or exactly what it does. It does do the 1 to 4 shift delete. Does anyone recognize this label? I hope someone can tell me who did this chip :confused:
http://i137.photobucket.com/albums/q226/bsoomann/90zr1.jpg
Thanks Bill

[GOLDCYLON]

DRM in my 91

[BBBAD94ZR1]

Halibeck in both of my cars.
RAY

[blackjack]

just installed ported plenum & ih,along with a haibeck chip....what a difference !!
bj
91/1735

[zr-1 passion]

Halibeck in both of my cars.
RAY

is the Hailbeck a better chip to go with. i dont know to much about that part of tuning a car :iamwithst

[WB9MCW]

WELL AS YOU CAN SEE IN THE POLL IT IS THE MOST USED ONE BY MEMBERS!

YOU WON'T BE UNHAPPY IF YOU DID!!!

IT WOULD BE FAIR TO SAY---

IT IS EASY TO DO AND VERY COST EFFECTIVE

[ZZZZZR1]

ABOUT 5 YEARS AGO I REPLACED MY CHIP WITH A STOCK GM. COST WAS 40SOMETHING DOLLARS. MOTOR WOULD NOT RETURN TO IDLE WAS THE ONLY PROBLEM.........RICHARD TILL.... 90-ZR1 RED/RED NO-2161. ITS GOT 108K ON IT NOW AND AM WONDERING HOW FAR FROM HOME I SHOULD GET WITH IT.

Get that car tuned and "loved" by a good mechanic. You will get that permagrin back, no worries! :thumbsup:

[WB9MCW]

richard t. made that post back in 05-- wonder if he didnt fix that issue a long time ago??? richard do you have the "permagrin" back now???

http://img.scoop.co.nz/stories/images/0702/90ee40067550e3199fc3.jpeg

[ZZZZZR1]

dayum!


Not THAT permagrin!!!!!!!!!! [-X

[jonszr1]

JFYI the 90 prom is NLA from gm. so i guess if yours goes bad you must get one from one of the tuners

[Tyler Townsley]

JFYI the 90 prom is NLA from gm. so i guess if yours goes bad you must get one from one of the tuners

It is very unusual for a calibration (information on the chip) to go bad. Your stock chip can be erased and reprogramed by any of the tuners.

Tyler

[jonszr1]

thanx for the info. tyler do you know what one would have to get to do his own tuning. i used to love to experimate with my carbed drag car and would like to explore some ideas i had . can you help me locate what I need . ?

[Tyler Townsley]

thanx for the info. tyler do you know what one would have to get to do his own tuning. i used to love to experimate with my carbed drag car and would like to explore some ideas i had . can you help me locate what I need . ?

Hardware
http://www.moates.net/product_info.php?cPath=25_36&products_id=32 (http://www.moates.net/product_info.php?cPath=25_36&products_id=32)
http://www.moates.net/product_info.php?cPath=51&products_id=48 (http://www.moates.net/product_info.php?cPath=51&products_id=48)
http://www.moates.net/product_info.php?cPath=26&products_id=39 (http://www.moates.net/product_info.php?cPath=26&products_id=39) 2ea
A good wideband setup and data logger.
Software
http://tunerpro.markmansur.com/ (http://tunerpro.markmansur.com/)

A whole lot of reading here:

http://forums.corvetteforum.com/showthread.php?t=202488 (http://forums.corvetteforum.com/showthread.php?t=202488)

and

http://www.thirdgen.org/techboard/diy-prom/

and

Talking to others that have/are doing custom tuning as a hobby.
It is not for the faint of heart.

[cuisinartvette]

Having someone fly out this fall to teach me how to do some tuning. You can only learn so much by phone and get so "close" by mail order, but I am definitely intrigued. I smell a new obsession on the horizon :D

[Jim Nolan]

After my porting I was running on a stock chip. It ran a lot better but less than I expected. I bought a new chip with the fuel correction from Marc Hibieck and what a difference. Now it really runs strong.

[2ZR1S]

Marc R in 1992
Z-Industries in 1991

[brazilfree]

LPE chip with Mark Haibeck attention to detail - he is rare.

[flyin ryan]

i did my own on all my Zee's. also did Craigs427 for him as well. work good. loosely based off Mark's. really only so much one can to do these especially if the engines' stock. all the R&D has long been done. one thing i do different than most is i stagger when the cooling fans come on by 5°. not as much draw on the electrical system all at one time. not right or wrong but just made sense to me to do it that way for obvious reason.

[32valvZ]

Just got my Haibeck reprogramed prom back. So far its just as he said it would be. I see a much smoother off idle throttle response & an overall better functioning engine. The power always on is something I thought I wouldnt really like, but I do. The running temps are about 10-15* cooler and the knock is gone under throttle when I take off and the engine is hot. Funny thing is I thought I heard it ping a bit in second under harder than normal acceleration the other day. I am going to fill up with a different brand of premium next time and see how it does.

Does adding over the counter fuel octane booster make a difference? Anyone use a product like 104+ or similar? Comment on what you used & like.

[WB9MCW]

I try to always get BP premium - never use the 104 see no need to -- never had ping even with lesser grades of Prem. But I have had a custom chip within the first month of ownership. Fans on early and no cags is great. Much better overall performance as well --even more than just a seat in the pants thing really could tell a big diff.

[xlr8nflorida]

SGC / Mark Haibeck Chip :dancing

[ZZZZZR1]

LPE chip with Mark Haibeck attention to detail - he is rare.

Haibeck is the man..... Excuse the term, but my Z runs like a RAPED APE and I love it. :dancing

[Paul Workman]

Marc H for me. Great reputation, had what features I wanted, and only a couple miles from my place of work (handy to have a GURU so...handy!)

P.

[VetteMed]

Z-Industries -- but I have no feedback to offer yet, since the secondaries aren't working :-D

Edit: OK, secondaries are working, car runs well, but I have nothing to compare to!

[Jim Nolan]

I had my e-prom modded again. Nothing wrong with the Haibeck chip but when SGC did my engine work Aaron programmed it to meet the mods.

[AtsZR1]

Aaron Scott...he has done all of the mods on my car...very happy with the results. None better!

[A26B]

SGC custom tune for the 415 build.

[WB9MCW]

Marc is Da MAN.

Good job on all the detailed ?'s Dyno you covered all the angles.

[tomtom72]

I just realized that I could now vote in this poll....:mrgreen:

I have a standard Marc Haibeck chip in my 90.....boy I still can't figure out why I waited 5 yrs to get one! Marc's cooling fan protocol is worth it! :fahne:

[efnfast]

Is there an easy way to tell if the previous owner did a chip? :dontknow:

:Eagle:

[Hib Halverson]

Remove the ECM, flip it over, remove the cover and look at the chip.

Also, if ship-shift has been disabled or the cooling fans come on at lower temperatures than stock are both clues that the ECM has an aftermarket cal in it.

[efnfast]

Thanks Hib. What should the chip look like? Skip shift is unplugged, but the light still comes on. Fan's seem to come on way hotter than I would like. My driveway is 3/4 mile long. At an idle down my dirt drive it seems to get real hot.

Steve

[Hib Halverson]

They usually do not have the OE broadcast code stickers on them. Also, many aftermarket chips have a label with the vendors name on it.

If your 1-to-4 light still comes on and the fan strategy is as listed in the Service Manual, you likely do not have an aftermarket cal.

At this point, some of the best aftermarket cals come from Marc Haibeck. I think, he advertises on the Registry site. He has a web site at: www.zr1specialist.com

[efnfast]

Thanks Hib, I'll check it out. I've been to Marc's site often. He has helped me out on a few times via e-mail.:cheers:

:flag:

[Hib Halverson]

You are welcome. Glad to be of service.

I've tested Marc's cals in my 95 and his stuff works quite well.

[edram454]

I have a zimmer chip. before he created z-industries.. zimmer did his own chips under his name. there has been comparison tests done on these chips and I remember reading that the zimmer chip was one of the aggressive ones out there. I have a 1990 zr1 #3028 and it runs very strong. Previous owner said, during track days, some of his buddies had 368 cube z's and they could not pull away from him. the only times the 368 did pull a bit harder is accelerating out of turns and that was because they had 4.10 gears.. as soon as he got to speed he was right with them. I dynoed the car a few weeks ago and I pulled a 402 to the wheels on a dynojet dyno.

[DennisC]

Corey Henderson is it in Texas, knows his ZR-1's. Attentive to each individuals needs, close to home!!

[efnfast]

I need to revote. I now have a Haibeck chip. Thank you very much.

[bradley]

both my cars have corey prom mods .

[mgg]

The only way a prom can be effectively calibrated is with the car that it will be going in is on the dyno. Off the shelf proms are nothing more than a guess as to what level of tune your particular car is in. Maybe you got lucky but beware of a lean running car even though quick will be a nightmare eventually. If the prom is not programmed with the car on the dyno you might as well be throwing darts. Someone like Haibeck who has experience with a large number of ZR-1s in different levels of tune has a better chance of having a generic prom that will work. Unless someone has extensive experience with a large quantity of LT-5s its a crap shoot. Just my opinion. Had a number of experiences that would support it. A track day might not be the best way to evaluate the HP of your car due to all the variables involved. Braking, how quickly one can get back to the accelerator can be more important than horsepower. The person who is on the gas earliest wins. A driver who can get on the gas 20ft. earlier than the other driver has a HUGE advantage. 20 ft. sounds like a big distance but at 70 mph it goes by very quickly. It would take approximately 100 hp advantage to make up that distance. We would teach this to students and they would be amazed at speed differential at the end of the straight after practicing slow in fast out . I am glad your car is running well and it sounds as if you were one of the few very fortunate ones. Just check your air /fuel ratio to make sure it is not too lean. I believe the drag strip would better evaluate your car with MPH numbers.

[edram454]

The only way a prom can be effectively calibrated is with the car that it will be going in is on the dyno. Off the shelf proms are nothing more than a guess as to what level of tune your particular car is in. Maybe you got lucky but beware of a lean running car even though quick will be a nightmare eventually. If the prom is not programmed with the car on the dyno you might as well be throwing darts. Someone like Haibeck who has experience with a large number of ZR-1s in different levels of tune has a better chance of having a generic prom that will work. Unless someone has extensive experience with a large quantity of LT-5s its a crap shoot. Just my opinion. Had a number of experiences that would support it. A track day might not be the best way to evaluate the HP of your car due to all the variables involved. Braking, how quickly one can get back to the accelerator can be more important than horsepower. The person who is on the gas earliest wins. A driver who can get on the gas 20ft. earlier than the other driver has a HUGE advantage. 20 ft. sounds like a big distance but at 70 mph it goes by very quickly. It would take approximately 100 hp advantage to make up that distance. We would teach this to students and they would be amazed at speed differential at the end of the straight after practicing slow in fast out . I am glad your car is running well and it sounds as if you were one of the few very fortunate ones. Just check your air /fuel ratio to make sure it is not too lean. I believe the drag strip would better evaluate your car with MPH numbers.


I agree on that one. mph is where you truly find out how much power your engine is making. elapsed time just means that you have a good set up and you hook. trap speed never lies. If you can trap at over 130 mph you have a fast car making great power..450 to the wheels at least. dyno tuning is always the best option but for those of us who just want to plug in a chip dyno tuning might be to expensive and rough on the equipment.

[XfireZ51]

I have my own FBI calibration(s). :-D :dancing

[Bob Eyres]

Mine was done by Jeoff Jeal, way back in the last century. The price was a case of "Old Speckled Hen" ale in the pit area at Beech Bend.
He and his boys drank the ale, cut the chip, and put it in just in time for me to line up for the last run of the day. By chance, it was my relatively stock 91' vs. the legendary "FastLane" Goldstein. In the first fifty feet he went by me with both front wheels a foot off the ground.
Marc Haibeck has the best reputation today for "off the shelf" chips. But a true custom chip for your car can only be properly done on a dyno. If you don't do it that way, you are leaving horsepower on the table. There is no way even the best tuner in the world can optimize the tune of your car unless he has the car in front of him.

Does anyone remember the name of the guy from Jacksonville who was a top ZR-1 dyno tuner twenty years ago? Jim...... something?
He was a former GM employee, and had a lot of the original tuning records from the development of the car.
I watched him dyno tune a 90' ZR-1 that had the top-end done. It took him all day to do it, but he pulled an extra 50 peak HP out of it. He cut at least twenty different chips before it was perfect.

[Bob Eyres]

A track day might not be the best way to evaluate the HP of your car due to all the variables involved.

I agree with most of your post but this.
Next to a dyno, the trap speed of the car in the quarter mile gives the best indication of horsepower you can get. A bone stock C4 (375hp.) ZR-1, in good tune, will trap around 110mph. A 405hp. car a couple of mph quicker.

Your e.t. can vary wildly, due to the traction at the track, tires, driver ability, and a host of other factors. Although temperature, and atmospheric conditions do affect power, unless you screw up badly, trap speeds will not vary significantly.

[XfireZ51]

Bob,

A "true custom chip" involves tuning for overall driveability with real road conditions and not just WOT. In fact to properly tune WOT, you need to have the
part throttle and driveability tune done correctly first.

[We Gone]

Bob,

A "true custom chip" involves tuning for overall driveability with real road conditions and not just WOT. In fact to properly tune WOT, you need to have the
part throttle and driveability tune done correctly first.

YES, Marc tuned my car after the upgrades he drove it about 40 miles to do a street tune than took it to the Dyno.

[Schrade]

I got Marc's chip for '90 TSB high idle coast down, and hard hot re-start.

Anyone know how it fixes the hard hot re-start, and not immediate cold start?

(mine HAS started immediately COLD, just a couple times, since the 'Top End Resto' is done here...)

[matszr1]

I guess I have a "true custom chip" from Marc then. He is definitly the man when it comes to the ZR-1. He sure went above and beyond on my car.
:dancing


Bob,

A "true custom chip" involves tuning for overall driveability with real road conditions and not just WOT. In fact to properly tune WOT, you need to have the
part throttle and driveability tune done correctly first.

[ZRXMAX]

As I was told when I bought my car in 2003 it was equipped with a chip programmed by Chip Reese.

Has anybody heard of Chip Reese?

I also have a stock chip and the drivability and power are down as compared to the Reese chip.

[tonywy]

I have a Doug Rippie chip that a friend gave me, anybody know what to expect with this chip?

[BlackWidow#2]

My calibration came from the master. Pete P, but I don't see him listed ???

[loony69]

My 1990 RED / Black # 365 had the Zimmerman chip in it when I purchased it just after Christmas. It had been in the car since 1992. After extensive research I sent my cars chip to Marc Haibeck for his upgrade on Tuesday and just got off the phone with Marc at 3:30 pm today, Saturday. This upgrade is regarded as the best on the market for a generic tune for all ZR1's. Marc read the Z chip and gave me all details and parameters on it and explained everything to me in terms I could understand. Programming is complete and will be returned by the middle of next week. Thanks for all of your help Marc, I'll talk to you soon/ Pat

[Jim Nolan]

A few years ago when I had the SGC 475 package done on mine it was dyno tuned and e-prom reprogrammed. What I didn't like about the tune was when you let off the gas completely you get a backfire. I had an extra e-prom I sent to Marc with all the mods on the car and asked him to program it. I have run both e-proms and as far as power goes it feels about the same. Unfortunately I live in an area that is not dyno heaven so I can't find out what my rwhp is on Marc's chip. Any thoughts?

Jim

[XfireZ51]

A few years ago when I had the SGC 475 package done on mine it was dyno tuned and e-prom reprogrammed. What I didn't like about the tune was when you let off the gas completely you get a backfire. I had an extra e-prom I sent to Marc with all the mods on the car and asked him to program it. I have run both e-proms and as far as power goes it feels about the same. Unfortunately I live in an area that is not dyno heaven so I can't find out what my rwhp is on Marc's chip. Any thoughts?

Jim

Is there a track somewhere? See what your trap speed is.

[RussMcB]

I wonder if the poll choices can/should be updated, for instance, to include the new MS3-Pro ECU (Megasquirt).

[A26B]

The poll is also missing Lingenfelter. They don't provide calibrations except with their engine upgrades. For the last 20 years or so, those calibrations would have been made by Graham Behan.

[MuRCieLaGo]

I don't know what's my chip but I'd be glad if somebody here knew where it's from...

http://i841.photobucket.com/albums/zz332/TiGarsRotatif/20151111_213542.jpg

[spork2367]

Any info on this?

http://a63.tinypic.com/ay9h51.jpg

[Hib Halverson]

That's a Z-Industries calibration for an early engine. Standard Z-Industries cal. enhancements were: disable skip shift, lower fan-ons, slight spark changes, slight lean-out of WOT fueling. Z-Industries also did custom tuning work.

Z-Industries was one of the early LT5 calibration sources. Operated by Ron Zimmer, who was a major force in aftermarket "tuning" during the 80s, 90s and 00s, did quite a bit of LT5 work in the mid-90s.

He did most of the calibration work for the modified LT5 which I had in Barney, the 95 I used to own. Barney's engine was equipped with an AutoMasters "Street Skinner" performance package which raised the flywheel power to just over 500-hp. Automasters, run by the late Jim Van Dorn, used either DRM or Z-Industries cals.

Ron Zimmer was also co-developer of the 93-95 EGR "fix" that was developed in the late 90s and which allowed more 93-95 engines to pass the California Smog Check.

I kept a Z-Industries chip in my LT5 up until the last couple of years I owned the car when I used a Haibeck chip with some slight recalibration of secondary port throttle operation.

As to what specific changes were made to the cal pictured, it might be hard to find that out as Ron Zimmer has retired and I have lost track of him.

If you want to find out you're probably going to have to either read the calibration info in the chip and compare it to stock.

Or...just try it out.

[spork2367]

As to what specific changes were made to the cal pictured, it might be hard to find that out as Ron Zimmer has retired and I have lost track of him.

If you want to find out you're probably going to have to either read the calibration info in the chip and compare it to stock.

Or...just try it out.

It's on the low mileage parts car I just bought. Runs great, has 3" exhaust, but I have no real info about it.

[XfireZ51]

Anybody want to send me their chip, I'll read it. I can contrast it to stock.

[spork2367]

Anybody want to send me their chip, I'll read it. I can contrast it to stock.

PM me your mailing address!

[XfireZ51]

PM me your mailing address!

I won't be in town after the 10th to the 24th just in case u need a quick turn around.

[TommyL]

I have a DRM 1990 ZR-1 chip. The car had B&B triflow exhaust, RC injectors and an open air filter housing. The car ran great. I still have the 93 40th Z and would like to get a chip for it but this 90 chip I thought maybe someone would like to have it. Any idea what this chip would be worth?

:cheers:

Tom Little
kito@sympatico.ca

[Tripler]

1995 with Mark Haibeck Chip ... Chromed rims are the only other mod ...

;)

Sent from my LG-D852 using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

[george1945]

Heibeck chip in the 90. Will also chip the 91 this summer with some other power mods.

[efnfast]

Let's see, I've had Marc's chip, then another Mark's chip, then Pete's chip, now Marc's chip.
Way too much money into chips. I piece mealed it to 500+ hp. I'm sure it cost me way more than a 500 package had I just bit the bullet and done it all at once.

[indy91zr1]

i dug this post up from the past lol. Sorry guys. Just trying to figure out my car. It has a doug rippie chip along with some of the stuff done with his 500 packages. So just trying to figure out if it might have one. I sent an email to them to see but will prob be a dead end.

[efnfast]

I expect you will be able to get a hold of Rippie Motorsport. Doug comes to the gathering sometimes.

[Ccmano]

I now have one from Dom’s “Calibrate Tuning” running nicely without secondaries.
H
:cheers:

[Ccmano]

i dug this post up from the past lol. Sorry guys. Just trying to figure out my car. It has a doug rippie chip along with some of the stuff done with his 500 packages. So just trying to figure out if it might have one. I sent an email to them to see but will prob be a dead end.

Just open the bottom of the ECM and look. They are generally marked.
H
:cheers:

[indy91zr1]

Just open the bottom of the ECM and look. They are generally marked.
H
:cheers:

I did just awhile ago. All it said was doug rippie motorsports on it. Unless its marked underneath that sticker. Will have to double check it. Thanks for the insight.

[indy91zr1]

well still haven't heard back from drm. Which I doubt I will anyways. I am gonna assume that its just a bolt on car. I checked the throttle body plenum and throttle body itself and neither were ported. I still don't understand how my car has a sticker for being a member of zr-1 registry and not be found on here. Strange. I am still trying to dig up stuff.

[haber rj]

South Georgia Corvettes

[tgonyaw]

Haibeck chip here.

[JSad]

Haibeck here too

[mcich7781]

Haibeck Chip burned specific for my car during dyno-tuning.

Sent from my SM-G955U using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

[Matt B]

Just installed Haibeck yesterday. Incredible improvement over the 1st generation 91 OEM calibration. Worth every penny.
Mine is slightly modified to maintain low power mode standard on startup - because it's such a cool feature [emoji106]

Sent from my SM-G991B using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

[sleazy rider]

my 91' z had its chip modified by john lingenfelter, anyways his shop did, when they did the 530hp package. this past year i had marc haibeck perform his magic to it.