432 RWH!!! Woo Hoo!

[Paul Workman]

Just spoke to Marc H who just finished the final dyno tuning - last stage of the tuning we stared a week ago (had some last minute gremlins pop up...Something new). She's making 432 at the rear wheels which calculates to around 508ish at the FW.

Woo Hoo! I'm stoked! All this turmoil finally pays off...YESSSSS! :dancing

Crown Point Corvette Challenge...get ready!!

This was my first venture into hotrodding the LT5. It has been a loooong and arduou$ road to travel. But, with considerable coaching from the core of the FBI gang, namely Pete, Marc, and Bob G, it looks like a milestone has been achieved. Way to go FBI gang!


P.

[rhipsher]

Paul that is just freakin awesome bro! I'm excited to. Now your up to C6 base HP. Congrats Man. You deserve it Paul.:cheers::cheers::cheers:

[jrtoffroad]

That's awesome!

Can you provide more specs on the engine? (Any changes to bottom end or cams?) Do you have a copy of the dyno sheet?

-Jordan

[Paul Workman]

That's awesome!

Can you provide more specs on the engine? (Any changes to bottom end or cams?) Do you have a copy of the dyno sheet?

-Jordan

At work just now, but stock bottom and cams, cams timed by Pete (and Bob G?), porting and relieving would take a while to describe all of those tweaks. I'll post the dyno sheets later this week.

P.

[ScottZ95ZR1]

Outstanding Paul! Glad to see all your hard work pay off so well. Absolutely awesome. :cheers:

[GOLDCYLON]

Dayum!!!! Nice numbers

[tf95ZR1]

Great numbers!
Congrats!

[Kevin]

wow, that's amazing numbers from a top end car

[Aurora40]

Now your up to C6 base HP.
I don't think they throw down that kind of power to the wheels!

[FU]

LOVE THOSE TOP END CARS ! Great job !

[PhillipsLT5]

Heads ported?

[LGAFF]

Nice thats about 500-510 crank

[Paul Workman]

Heads ported?

Oh, yeeeaaaaahhhh.

http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/Lingenfeltercut.jpg
http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/6-19-10020.jpg
http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/IH3Large.jpg
http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/12-27-09006Large.jpg
http://i185.photobucket.com/albums/x220/6PPC_bucket/tech%20files/12-27-09005Large.jpg

P.

[rhipsher]

I don't think they throw down that kind of power to the wheels!You right. My bad. I meant c6 z06 rwhp. They do put down 435 to the wheels.

[rhipsher]

Paul. Did you have the heads flow tested. What cfm numbers were they at? Damn Paul now you've got me wanting to do my heads. I've always planned to do it but wanted to wait till something screws up in the motor! But nothing ever screws up. No matter how hard I push it.

[-=Jeff=-]

makes me want to actually port my top end, well at least IH and Plenum....

[shaynezrl]

WOW!! that is great numbers. Amazing gotta love the lt5 with top end modified. Mine dyno 395 at the wheels but its not tune yet.

Enjoy

Shayne

[WB9MCW]

Congrats Paul on the well deserved #'s

[Paul Workman]

Paul. Did you have the heads flow tested. What cfm numbers were they at? Damn Paul now you've got me wanting to do my heads. I've always planned to do it but wanted to wait till something screws up in the motor! But nothing ever screws up. No matter how hard I push it.

The runners are essentially a long curved funnel with the narrow end at the entrance to the valve bowl - about 35.5 mm and the widest end is at the air box as the air enters the runners - say 37.5 ish. Pete, Bob G, and Marc Haibeck's tutoring along the way gets the credit for the design. My part was doing the grinding/shaping and trying not to wander off the line and punch holes where there ought not be no holes!

P.

[Pete]

:fahne:


That is awesome Paul,great freaken #'s :thumbsup:

Now it's all fun.
Till you get the itch for more power.:)

Finished my Z today and got her running just need to tune her.


Pete

[HAWAIIZR-1]

Congrats P. and I know you must be in heaven. I'm right behind you and if I can get those kind of numbers I will be one happy camper. Always nice to hear this kind of great news!!!!

[Paul Workman]

Congrats P. and I know you must be in heaven. I'm right behind you and if I can get those kind of numbers I will be one happy camper. Always nice to hear this kind of great news!!!!

Hang in there Craig! I feel we're brothers - both having gone thru some "darker" times with these projects. But, I (we) are all pullin' for ya! Pete often said, "...the first time you whack the throttle (after the mods), you'll forget about all the frustration and bad stuff!" Oh, how right (again) he IS!

Thanks to y'all for the kind words, and encouragement along the way. Time to go slay some dragons, methinks!!:fahne::fahne:

P.

[Paul Workman]

:fahne:


That is awesome Paul,great freaken #'s :thumbsup:

Now it's all fun.
Till you get the itch for more power.:)

Finished my Z today and got her running just need to tune her.


Pete

Awesome - much thanks to your coaching. And, here's to seeing that 11 second barrier go down for you and the Mean Green Machine!:thumbsup::thumbsup:

[jimmac28]

Man Paul those numbers came in higher then you thought, but the way you went by Dom and me the other weekend I knew you were close. :notworthy :cheers: :cheers: :cheers:


Now start thinking NO RAIN! NO RAIN! NO RAIN! for Saturday.

[tomtom72]

:cheers::handshak:

Wow those numbers are sweeeet! :jawdrop:


Nice work Paul. You sure are going to have a bad case of permagrin now!

[Ccmano]

Nice... very nice!:handshak:
H
:cheers:

[GOLDCYLON]

makes me want to actually port my top end, well at least IH and Plenum....

Mine were match ported as well but she doesnt through down these numbers which are outstanding. GC

Dayum we need an FBI branch extension out here in Arizona. Pete what the hell did you do to those stock cams???

[-=Jeff=-]

Mine were match ported as well but she doesnt through down these numbers which are outstanding. GC

Dayum we need an FBI branch extension out here in Arizona. Pete what the hell did you do to those stock cams???
of course not, Paul has ported heads and Pete's secret cam recipe for stock cams

[GrayZ]

Congrats Paul....no one deserves it more'n you.

Stock cam timing by Pete, must be worth around 9hp.
as, my motor is essentially the same as yours, cept for
Pete's majic. :cheers:

[Pete]

Congrats Paul....no one deserves it more'n you.

Stock cam timing by Pete, must be worth around 9hp.
as, my motor is essentially the same as yours, cept for
Pete's majic. :cheers:


On cam timing,some cars will see more some less the reason is some might be closer to perfect then others, some can see 5hp others 20hp all depends where they were from the factory,if you race ten stock C6 ZO6 vettes 1 will be that real fast freako.

Also compare Dominic's and Paul's HP difference complete ported top end vs. just ported Plenum/IH's

Pete

[94Admiral]

Marc does amazing things. He also just got 543 crank HP from a 368 package for a local Chicago guy named Jay. Very nice. Congrats on your results.....you will have a lot of fun (and reliability) from Marc's work.

[Aurora40]

Marc does amazing things. He also just got 543 crank HP from a 368 package for a local Chicago guy named Jay. Very nice. Congrats on your results.....you will have a lot of fun (and reliability) from Marc's work.
I believe Paul is just having Marc do the tune. Paul did his own porting and assembly.

Those numbers are really stout for a 350, is it a stock flywheel? :cheers:

[Paul Workman]

I believe Paul is just having Marc do the tune. Paul did his own porting and assembly.

Those numbers are really stout for a 350, is it a stock flywheel? :cheers:

Fidanza FW.

Pete sent the heads off for valve work (the impitus for this whole fiasco in the first place - a bad exhaust valve), and did the head dis/re-assembly (twice) and timed the cams. At Marc's recommendation I had the heads milled .020 to offset the loss of compression due to the relief work which netted me (he says) about +0.5 point (11.5 total) compression.

Once the motor was reassembled, it went to Marc for final fuel mapping and spark calibration. According to Marc, the initial ("out of the box" as he put it) produced about 422 at the fW. After trimming and playing with the advance, the process evolved to the final number. That's where the final numbers came from - Marc's dyno tuning session.

This build has many fathers, you might say! :notworthy I feel blessed to have so much ZR-1 tallent - the FBI group at large - all within 1-1/2 hours drive from my house. (Marc's shop is about 10 minutes from my office at work, and Pete's is about 40 minutes away. How convEEEEEEEnient!:dancing)

P.

[HAWAIIZR-1]

Brother P,

Yeah, I hear you on the drama. Mine is pretty close to yours in some respects other than the SGC Stage I camshafts. I'm very curious to know and I just don't have the liberty of a dyno tune from a pro here in Hawaii and just mail order tuning from two of the tuners in our community. I don't know if anyone has tried tunercat but my friend was showing me it and it might worth venturing into since I don't have the luxury of any help.


Hi Craig,

Thank you for your e-mail regarding the C.A.T.S. Tuner program.

We do support your 1990 ZR-1 with our software. To tune your vehicle, you'll need the Tuner program ($69.95) and the $8E ECM Definition File ($19.95).

In addition to the above software, you'll also need an EPROM programmer to read and reprogram the EPROM in the ECM to install your modified tune. Virtually any EPROM programmer will work with the EPROMs used in these ECMs. If you don't already have an EPROM programmer you might want to consider our OBD1-Tune-8E kit which includes everything you'll need to tune your car including the Tuner program, $8E ECM Definition File, Burn2 Programmer, Memory adapters and Flash chip.

We also offer the OBD1-Pro-Tune-8E kit which includes everything in the standard kit plus a USB/ALDL-1 cable kit and the DataMaster data logging program.

If you have any other questions, or would like additional information, please do not hesitate to contact us.

Best regards,
TC

[-=Jeff=-]

I use tunercat and tunepro. Dominic bad the ECM info for tunerpro. I would check that out. I am working on the ALDL file for tunerpro v5

[XfireZ51]

I use tunercat and tunepro. Dominic bad the ECM info for tunerpro. I would check that out. I am working on the ALDL file for tunerpro v5

Jeff,

As an FYI, if you have a def file from TC or TPro, it can be converted to work with the other bin editor by dragging onto that particular application. No need to convert.

[-=Jeff=-]

Jeff,

As an FYI, if you have a def file from TC or TPro, it can be converted to work with the other bin editor by dragging onto that particular application. No need to convert.yep did fat for all my td's already :)

[Locobob]

Most excellent Paul! Glad to hear your hard work paid off.

[Nacho_ZR1]

I'm just now reading this post but all I have to say is W O W!!! Very impressive! Especially considering you don't have a stroker.

I wonder if Corey Henderson can achieve similar results - considering his shop is about 4 hours away from me. It seems that one of the biggest differences was the tuning on the dyno.

Have you taken it to the track yet????

[Paul Workman]

I'm just now reading this post but all I have to say is W O W!!! Very impressive! Especially considering you don't have a stroker.

I wonder if Corey Henderson can achieve similar results - considering his shop is about 4 hours away from me. It seems that one of the biggest differences was the tuning on the dyno.

Have you taken it to the track yet????

Made just one pass before that leeeetle oil leak I couldn't find until then, suddenly became a not-so-little leak. The low oil pressure switch gave out and oil shot all over the headers.

Traction is going to be the next challenge, along with re-setting my rev limiter to 7500 ish(?), and maybe some gears. She slipped most of the way thru first, and I hit the rev limiter before I could react to the shift light. Second gear slipped most of the way thru the tach, and I hit the rev limiter again in 3rd at about 200 feet shy of the trap.:-({|=

So, I've got some work to do before next season: Tires and rev limiter re-set at least. I console myself by remembering that in spite of everything that went wrong, it ran a 12.6 at 117.x mph. She's got the potential. Just have to dig it out now.:cheers:

P.

[Nacho_ZR1]

Made just one pass before that leeeetle oil leak I couldn't find until then, suddenly became a not-so-little leak. The low oil pressure switch gave out and oil shot all over the headers.

Traction is going to be the next challenge, along with re-setting my rev limiter to 7500 ish(?), and maybe some gears. She slipped most of the way thru first, and I hit the rev limiter before I could react to the shift light. Second gear slipped most of the way thru the tach, and I hit the rev limiter again in 3rd at about 200 feet shy of the trap.:-({|=

So, I've got some work to do before next season: Tires and rev limiter re-set at least. I console myself by remembering that in spite of everything that went wrong, it ran a 12.6 at 117.x mph. She's got the potential. Just have to dig it out now.:cheers:

P.

Oh man, was this with the stock tires???? You'll definitely be in the 11's with some sticky meats back there!

[sammy]

I'm just now reading this post but all I have to say is W O W!!! Very impressive! Especially considering you don't have a stroker.

I wonder if Corey Henderson can achieve similar results - considering his shop is about 4 hours away from me. It seems that one of the biggest differences was the tuning on the dyno.

Have you taken it to the track yet???? Nacho , corey is an awsome tuner. he ported my injector housings and plenum on my 90 that along with jeal headers (that he can also make for you) fidanza flywheel and the ugly flowmaster exhaust that was on the car, got my car to 409.9 rwhp and 373.3 tq. i have since changed the exhaust to a custom dr gas system ,xpipe and spin tech mufflers .it now has dynod 426.1 rwhp and 380.6 tq . car also has 4.10 gears and has run a corrected 11.709@123.55 mph using the drag time correction method . i beieve he and marc are the 2 best tuners out there . plus he owns and loves the zr1 have a 368 that runs way fast . his pricing is very fair and his work first rate . i have twice driven 3500 miles round trip to have him tune both my zr1s .being so close to him is a nobrainer to have him help you extract the maximum hp out of your car.jmho

[Nacho_ZR1]

Nacho , corey is an awsome tuner. he ported my injector housings and plenum on my 90 that along with jeal headers (that he can also make for you) fidanza flywheel and the ugly flowmaster exhaust that was on the car, got my car to 409.9 rwhp and 373.3 tq. i have since changed the exhaust to a custom dr gas system ,xpipe and spin tech mufflers .it now has dynod 426.1 rwhp and 380.6 tq . car also has 4.10 gears and has run a corrected 11.709@123.55 mph using the drag time correction method . i beieve he and marc are the 2 best tuners out there . plus he owns and loves the zr1 have a 368 that runs way fast . his pricing is very fair and his work first rate . i have twice driven 3500 miles round trip to have him tune both my zr1s .being so close to him is a nobrainer to have him help you extract the maximum hp out of your car.jmho

123.5 MPH!!!! :salute:

[Paul Workman]

123.5 MPH!!!! :salute:

Well, I believe with the GY F1-GS-D3 315/30s and stock 3.45 rear, 7200 rpm (stock rev limit) gets you to 120.x in 3rd gear...So, ya see the problem:( I think (mathematically speaking) a 4.33s might work for a 500 hp motor. But, after 4.10 (from my experience) it detracts from the drivability factor...which is 99.9% of my driving anyway. 4.09-4.10s is prolly where I'll come down.

P.

[Nacho_ZR1]

Well, I believe with the GY F1-GS-D3 315/30s and stock 3.45 rear, 7200 rpm (stock rev limit) gets you to 120.x in 3rd gear...So, ya see the problem:( I think (mathematically speaking) a 4.33s might work for a 500 hp motor. But, after 4.10 (from my experience) it detracts from the drivability factor...which is 99.9% of my driving anyway. 4.09-4.10s is prolly where I'll come down.

P.

Grrrreat. So u are saying I'm going to regret my 4.33 gears on a stock motor with exhaust???

[Hammer]

Grrrreat. So u are saying I'm going to regret my 4.33 gears on a stock motor with exhaust???

That's what I mentioned. Too steep. Some have taken the 4.10's out because of that.

[sammy]

my 90 with the 410 gears goes through the lights aprox. 6700 rpms and @2000 rpms on the freeway is doing 72 mph .white car with 392s goes through the lights around 62-300 and is doing 76 mph at 2000 rpms . i like the 392s for cruizing and they are a little easier to launch at the strip than the 410s . i am considering trying the 3.45s at the strip just to see if i can improve my 60fts and with 1 less shift ,i am wondering if the car might actually et better . have never run with the 3.45s at the strip .. i am also going to go to a eaton gear type locker in the white car as it seems like the clutch pack is going and like the thought of a gear type . other c4 racer have used it and love it. the best part of the lower gears is when you are cruizin around in town , dont have to shift as much .

[Paul Workman]

Grrrreat. So u are saying I'm going to regret my 4.33 gears on a stock motor with exhaust???

The ultimate ratio for the strip is one that strikes the best balance between all the other factors (60 foot time, hp, rpm, #of shifts vs. average torque (acceleration)) and gets across the finish line in the shortest length of time. All things considered, you'll have to test it and see where your rpm ends up at the finish line and decide which way to go.

As for driving in traffic, a stick shift is more of a PIA than the rear gear, IMO. I've driven with 3.07s to 4.11s in traffic, and if I had to choose, the 4.11s would be better than 3.07s, believe it or not. (Less clutch wear and you can idle in 1st at a slow speed, whereas idle even in first gear with 3.07s will keep you pumping the clutch - a LOT (believe me).

Bottom line? You'll have to see what the car and you can live with. 4.33 might be perfect for your combination of factors. You might like it just fine. In my case, adding 100 hp to the rear wheels has put a new wrinkle in things.:icon_scra

P.