is this possible?

[GrayZ]

8388 wrote:"I own two ZR-1's and you probably won't like what I have to say, but I would do only bolt ons. The LT-5 is a bit too complicated for internal mods, in my opinion. With the right bolt ons you can make 400+ to the rear wheels. My 93 makes 411 rwhp and the intake has never been off, and it does that without aftermarket headers too. In my opinion it's best to achieve the 500+ hp in a regular C4. It's cheaper, and easier to work on, and when it's time to sell, it's easier to sell a modded regular C4 over a ZR-1".

I posted on another forum i belong to. dometicmisfits.net
the above mentioned quote..was from a guy we call numbers guy,
he seems very knowlegable about cars...and owns quite a few it seems..but...when i posted the question to the forum there..about some upcoming mods..i have been thinking about...he anwsered with the above quote...my question is

Is this possible?? with just bolt on's? cause i have headers...and corsa exhaust..and i only have 353 rwhp...before the corsa.
when i dyno'd in may...i was wondering...whatcha think?

[tccrab]

Keith:

411 at the rear wheels?
Intake has never been off?

:sign12:

Could be done with Nitrous... but not for long!


TomC
'90ZR1 #792

[GrayZ]

Keith:

411 at the rear wheels?
Intake has never been off?

:sign12:

Could be done with Nitrous... but not for long!


TomC
'90ZR1 #792

that's what i thought..Tom...but...the guy does have 2 zr1's
i am waiting for his reply to my post...i asked him..
if no headers...and no porting...what did you do??
i all ears...

[GrayZ]

Keith:

411 at the rear wheels?
Intake has never been off?

:sign12:

Could be done with Nitrous... but not for long!


TomC
'90ZR1 #792
tom...here was the mr. numbers reply....he makes sense..but..of course..
i'm not much of a tech...:mrgreen:

112733.12 Misfit Money
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http://www.domesticmisfits.net/forums/templates/subSilver/images/icon_minipost.gif (http://www.domesticmisfits.net/forums/viewtopic.php?p=191293#191293)Posted: 4 Post subject: http://www.domesticmisfits.net/forums/templates/subSilver/images/lang_english/icon_quote.gif (http://www.domesticmisfits.net/forums/posting.php?mode=quote&p=191293) itlgo2 wrote:</SPAN>8388 wrote:I own two ZR-1's and you probably won't like what I have to say, but I would do only bolt ons. The LT-5 is a bit too complicated for internal mods, in my opinion. With the right bolt ons you can make 400+ to the rear wheels. My 93 makes 411 rwhp and the intake has never been off, and it does that without aftermarket headers too. In my opinion it's best to achieve the 500+ hp in a regular C4. It's cheaper, and easier to work on, and when it's time to sell, it's easier to sell a modded regular C4 over a ZR-1.

really....?? 411 rwhp ..and you havn't ported...or added headers?
so ...i'm all ears...what DID you do?
http://www.domesticmisfits.net/forums/images/smiles/icon_rolleyes.gif

It has a Desert development 3" exhaust (they don't make these anymore) but it would not be hard to duplicate. They used a unique X crossover that in my opinion really helps. I also have a Doug Rippie chip. The 411 was done thru cats, although I no longer have cats, the car does feel a bit stronger, but I have not redynoed it since the cat removal.

In my opinion, is has all to do with having the cams timed correctly. There exist a large varience of power between most ZR-1's and that's because these engines were all hand assembled, thus cam timing varies from one to another. Most won't tell you that, because they are clueless, but those are the facts.

The LT-5 as you know, is a very hard working and dependable engine. Probably the most dependable engine out there. But once you start modding it's internals all of that changes. No difference than modding up any other engine on the planet, the only difference is that the LT-5 is a bit more complicated and more expensive to fix. For me, if you need to have 500, 600 700 + hp, it's best to do it with something that is easy and cheap to work on. The old small blocks or even the new LS engines are cheap and easy to work on, and make good power.

[jonszr1]

I know randy woods dynod 390 at the wheels but that was with headers. Has he owned it since new? Could the previous owner done head and or/plenum work? I finally got mine to 410 rwhp but that took plenum and injector porting and headers with a custom chassis dyno tune. Corey Henderson said that my hp numbers were the highest he has ever got from a car that had these mods. what type of dyno? could he post the dyno sheet. there is a way by cking the sheet to see if the operator has messed with the settings to inflate the numbers. I amnot saying bs but that is 40 hp higher than any other car tested with the same set up. has he ever run @ a drag strip and coulde he post times and mph . maybe we should start a thread to see what others with the same mods have gotten. if true he has one rare freek that people would pay well for just to tear down to see how it was achieved.:thumbsup:

[Peaven]

8388 wrote:In my opinion, is has all to do with having the cams timed correctly.

I would agree with most of what the guy said, but....I didn't think that there could be that much varience in hp from just cam timing. I still don't. I could see 10 rwhp variences between a poorly and perfectly timed LT5, but he's claiming way more than that. Anyone care to `splain it to this noob?:icon_scra

[jonszr1]

I just sent him a pm as he lives in texas and maybe he would drive to coreys to ck his numbers on corey new state of the art dyno. I would pay for the dyno time just to see if this the real mccoy. As far as cost to build SO WHAT. when we bought these cars we new they weren't cheap. Also no standard small block chevy could ever sound or have that one of a kind feeling that the KOTH has. that is priceless in MHO

[jonszr1]

peav,, your right on the cam timing. just got off the ph with corey and the very max in hp is 14. this info is from what corey has personally done also there is a piece in the heart of the beast on the hp diff. i wonder if he will take me up on my dyno offer @ Coreys? we shall see. I know I was asked to prove mine after porting which I did. if this is true its a alien car:mrgreen:

[Kevin]

wait, there are bolt ons for the ZR-1?

[Peaven]

peav,, your right on the cam timing. just got off the ph with corey and the very max in hp is 14. this info is from what corey has personally done also there is a piece in the heart of the beast on the hp diff. i wonder if he will take me up on my dyno offer @ Coreys? we shall see. I know I was asked to prove mine after porting which I did. if this is true its a alien car:mrgreen:

Thanx Jon that's what I figured....if anyone would know, Corey would. That said, there are some freak cars running around out there and who knows, maybe this guy has one of them. I've lived long enough to see that just about anything is possible.

[Aurora40]

Sam, 8388, does seem to be a knowledgeable guy. I don't think he is trying to BS you. It may be his car is just a factory freak. Or maybe he isn't the original owner, and someone else had the intake off. Or maybe he uses a rather gracious dyno. Who knows.

I think it's safe to say that the average owner won't make that kind of power with simply adding a Desert Development exhaust and timing the cams.

And I've never done it, but watching the videos on the cams, aren't they basically timed by the process of installation? Which is to say you have the assorted crank and cam pins in place, and voila it gets timed? I didn't know there was much room for error in that other than perhaps play in the pins.

What I am fairly sure of is that if there was a huge amount of power to be made timing the cams, then the folks that make their money selling performance to ZR-1 owners would get on board with that.

[40th#381]

My 93 Dynoed @ 371 HP @ BG in May 04.
The engine is stock with Marc Randolf chip Jeal headers and
Corsa exhaust w/no cats (thanks FL).

As you know those Ruby's are special :-)

Jan

[guinnessdood]

411RWHP without polishing and porting the Plenum and Injectors Housings (a top notch job at that!) and without headers and an aftermarket tune is not possible on ALL MOTOR. Someone needs to check out their dyno! Those numbers are just plain wrong. Even with all of that...it isn't likely to be more than about ~410 RWHP at best. Gotta get into the heads to bring much more than 400 RWHP. A lot of guys here have done a lot of these mods and those numbers just don't add up. No way.

[jonszr1]

I didn't want to be the first one[-X to say bs as I remember what people said about my car after porting the inj and plenum comming out to 409.9. but I will have to agree with Ullys' take on this. NFW. bad dyno or motor work heads-inj-plenum porting by previous owner. but whatever if he loves his z thats what counts. we all are hopeleely addicted to the KOTH. on that we can all agree!!!!!!!!!!!!!!!!!!!!!!!:mrgreen:

[8388]

I've talked to a few of the guys that were involved with the LT-5 project about my car, and it was agreed that cam timing can make a huge difference. Lets talk about this for a moment. We all know that freak cars do exist, mine is probably one of them.

Why or what makes it a freak ?

[Kevin]

cam timing, factory porting, built on a tuesday under a full moon?

[Peaven]

I've talked to a few of the guys that were involved with the LT-5 project about my car, and it was agreed that cam timing can make a huge difference. Lets talk about this for a moment. We all know that freak cars do exist, mine is probably one of them.

Why or what makes it a freak ?

I'd say that having 30 or more rwhp than most any other LT5 setup exactly the same way qualifies it as a freak, check...make that superfreak. A freak in this case is a good thing.:thumbsup:

Still, it's hard to fathom that a from the line, never been opened LT5 w/3" exhaust of any type can crank out 411hp at the rollers. Maybe someone got creative in Stillwater with your engine when she was being assembled, I dunno....assuming the dyno's right and as deep as an LT5 has to breathe to produce those #'s, that's the only explanation that makes sense to me.:cheers:

[jonszr1]

it would help alot if you would post the dyno sheet. I hope you can understand how over the top this is . my car has jeal headers flowmaster ex. aluminum flywheel and coreys port job on the inj and plenum, when I posted my figures everyone cried B.S. until Corey posted the dyno sheet. SO if they gave it to me what do you think they are going to do now . That is why I pmed you with the offer to pay for a dyno session at Coreys. If this is true I will buy your car for 30k just to tear it down to see how it was done. Its that far outside the box. just my humble opinion:mrgreen:

[8388]

If this is true I will buy your car for 30k just to tear it down to see how it was done. Its that far outside the box. just my humble opinion:mrgreen:


I hate to break it to ya, but, this car is not for sale :mrgreen: especially for $30k
As for dynos, like I said before, I don't put too much in them. The true test is what it does at the track. BTW, the car is in North Dallas, and we can, at your expense :mrgreen: pull the plenum off, right after a nice speed run :mrgreen:

[WB9MCW]

A FREAK ZR-1---HMMMM---DYNO IT AND LET US SEE THE FREAKY #'s---

BUT LET US DYNO ANOTHER STOCK ZR-1 JUST B4 OR AFTER THE FREAK ON THE SAME DYNO!!!

[jonszr1]

I am sorry son you are JUST so full of yourself . I'll bet you get chapped lipps kissing your self. why can't you just do the right thing and post your dyno sheets. whats wrong with being a stand up guy. ? is that too much for you. Or just show up with your so called stk ride at the next west gathering in vegas and I will race you for what ever ya want to put up money is no object to me . I was just trying to help ypou in asking to post your dyno sheets .I had non believers when corey did my car and out of respect posted my results for all to see. Anyone can come on here and posts anything but the true measure of a man is his honesty and producing the info to back up his words. So which are you a good guy or just another POS that likes to upset good decent people/ let me know when you decide .!!!!!!!!!!!!!!!!!!!!!!!:mrgreen:

[91King]

8388 wrote:"I own two ZR-1's and you probably won't like what I have to say, but I would do only bolt ons. The LT-5 is a bit too complicated for internal mods, in my opinion. With the right bolt ons you can make 400+ to the rear wheels. My 93 makes 411 rwhp and the intake has never been off, and it does that without aftermarket headers too. In my opinion it's best to achieve the 500+ hp in a regular C4. It's cheaper, and easier to work on, and when it's time to sell, it's easier to sell a modded regular C4 over a ZR-1".

I posted on another forum i belong to. dometicmisfits.net
the above mentioned quote..was from a guy we call numbers guy,
he seems very knowlegable about cars...and owns quite a few it seems..but...when i posted the question to the forum there..about some upcoming mods..i have been thinking about...he anwsered with the above quote...my question is

Is this possible?? with just bolt on's? cause i have headers...and corsa exhaust..and i only have 353 rwhp...before the corsa.
when i dyno'd in may...i was wondering...whatcha think?
When I purchased my car in April 2003 topend port work had already been done and it had SW headers/no cats going through a stock exhaust. The car dynoed 377 at the wheels with this set up. Two years ago I added a B&B exhaust and RT cats. I did not dyno the car after adding the exhaust but seat of the pants feel was that it had more power. The car is currently at EES getting upgraded to a 402.

Clearly, 8388's car possesses the most RWHP for a stock set up most of us have heard of. That said, for the vast majority of our cars the only way to get near 400 RWHP is to add a ported topend to headers and exhuast, and to get substantially over that figure you're going to have to port/polish the heads as well.

As far as the LT5 being too complicated for internal mods, I disagree. To be sure, you can't run down to the local speed shop and get the car fitted with off the shelf turbos and superchargers, but there are a few very good tuners who can put some serious bite in the beast if you choose to go that route. And even though one can certainly obtain 500 RWHP for much less on an LSX engine, those engines are simply nowhere near as exotic as the LT5 and in my opinion lack a level of "sex appeal".

[GrayZ]

holy crap...ok...sam..numbers guy...is a good dude...and i'm sorry
I even started this post...i did not intend for it to become a pissing
contest...we all know that different dyno's put out different numbers,
for the same car...if Sam, says he turned...119 mph through the 1/4 mile
that right there tells me...something is different about his car..
if he had dyno figures...i'm sure he would post them...let's all take a
deep breath..here...after all...we are brothers of the beast.....right??

[jonszr1]

thats exactly what i am trying to say he fired the first one and all I asked was a simple request then he comes back with this bs last post like a smart mouth. I am sorry but I don't back down from a smart mouth. I ain't built that way. I guess it come from my years a a ranger. But good guys bdon't post smart mouth sh*t like that. i can remember the grief I got for my numbers I backed them up . that was all I was asking until the little smart mouth posted what he did .I am outa hear .This isn't fun any more:mrgreen:

[Pete]

I believe he could be making the power.
Cam timing is worth a bunch.
Most think inside the box,with the LT5 you have to think outside the box.

Most assume there's only 5-10hp to be had from cam timing to my suprise there is 20-30RWHP just from cam timing.

Don't critisize someone,especially when you don't know yourself.

8388 love to get my hands on your heads/intake and port them,you could probably make another 60+RWHP you would have the baddest 350ci ZR1.

[jonszr1]

n o one started by criticising just wanting to see the docs on it. I do now alittle about this motor and the effects of cam timing best i have seen . is 14 hp. but 411 with no headers andno porting =-NO way.I know he has a dyno sheet if its true so why not share. whats wrong with that ??????????

[8388]

thats exactly what i am trying to say he fired the first one and all I asked was a simple request then he comes back with this bs last post like a smart mouth. I am sorry but I don't back down from a smart mouth. I ain't built that way. I guess it come from my years a a ranger. But good guys bdon't post smart mouth sh*t like that. i can remember the grief I got for my numbers I backed them up . that was all I was asking until the little smart mouth posted what he did .I am outa hear .This isn't fun any more:mrgreen:

I wasn't going to respond to your childish remarks, but I think I owe it to the others reading this.
#1. I was only trying to give some advise, about the capabilities of the LT-5. You took it as if I was trying to brag about my car. And in reality, I could care less what you think.
#2. I've been saying for years that all LT-5 have the same capability, those that are willing to listen with an open mind, will eventually benefit.
#3.Those that know me, know of my car and it's power, I've got nothing to prove here. I was invited here thru an email.

http://home.comcast.net/~corvette.collector/wsb/html/view.cgi-home.html-.html

[Aurora40]

Most assume there's only 5-10hp to be had from cam timing to my suprise there is 20-30RWHP just from cam timing.
What exactly is involved in doing this? I.e. where are the variables to be aware of when installing or timing the cams? And do you have any suggestions as to when it might be appropriate to try and when it might not be worth cracking the motor?

In regards to your initial statement Sam (or the one Keith initially posted from you), it does seem a little bit backwards. You are saying the engine is too complicated to get into any internal stuff, that you suggest just sticking with the exhaust mods/bolt ons and leave it at that. But you are also saying cam timing is where the power difference comes from. I would think for most of us, it is a lot less complicated and there's less risk of messing something up in removing the plenum and IH's and having work done to it, than in removing the cam covers and messing around under there.

Most of us have to take the intake off now and then anyway just for maintenance of things like plug wires or fixing vacuum leaks and whatnot. But this cam timing thing is certainly intriguing.

[Kevin]

if you're looking to get hp/$ for mods stick to another car. This isn't the car for it the costs to port anything on this car are not a great deal. Cam timing does not require pulling anything other than the hood release as far as I know. It is easier to do it without the motor in the car but it can be done with the motor in the car from what I've heard. I'll let someone else describe how to do it, I don't have that much time right now

[Peaven]

i'm sorry
I even started this post

Troublemaker[-X :mrgreen:


Miscommunication aside, this has been an intriguing and informative thread. I'm no Smokey Yunick, but I'm all for finding more hp in my beast....and since I want to pull those pieces off to pc `em someday soon (if i can keep Blue) then i might as well get `em portnpolished while I'm at it. Any gains from cam timing would be icing on the cake.:cheers:

[DaveK]

Scepticism until something is actually proven is a healthy attitude, that said the Jaguar V12 we used to race which uses a similar (albeit single) OHC setup was very sensitive to cam timing.

[tomtom72]

Hi Guys, I guess I'm in Aurora40's camp, I would like to learn more. I have the CD on the advanced ZR-1 course from STG....alot of us got copies the last go 'round from a brother owner.

I'm not anything but a backyard type but a professional mechanic friend of mine "taught" me on two of my own motors about rebuilding a sb chevy. He insisted that I learn how to "degree a cam". I know one thing for sure, the process made a big difference in my boat motor as to where in the rpm range I got power. Can't say anything about the LT-1 in my C3...I put that cam in at the factory "center line"(?) or "straight-up". I did degree it & found that I had to "adjust" the cam gear to get that on the money. Just like my mechanic friend said I would have to.:o

In the STG CD the subject on the cams was a bit light on all of that stuff. Is an LT5 done in a different way? I mean they made it sound simple....or perhaps it was the simpleton watching the CD.:o

Would anyone like to share a good information source that could be used as a learning tool????

:happy1:
Tom

[jonszr1]

I would talk to the different tuners. I talked with corey about the timing thing and he says its 10 to 15 max . also when you go after the hp figs you start to loose low end tq. the timing can make a bigger diff in the 368-385s due to the unshrouding of the valves.

[95ZR1#418]

My 93 Dynoed @ 371 HP @ BG in May 04.
The engine is stock with Marc Randolf chip Jeal headers and
Corsa exhaust w/no cats (thanks FL).

As you know those Ruby's are special :-)

Jan

Speaking of dyno's. Do the rear gears make any difference in the numbers. For example the same car with stock gears vs the same car with 4:30's in a dyno run??:confused:

[jonszr1]

I asked Corey that when we were dynoing my car after the port job and was told no it doesn't change the readings at all

[Aurora40]

http://zr1specialist.com/HAT%20Web/articles/timing_camshafts.htm

[tomtom72]

Thanks for the link Bob! I don't think that this guy is gonna be doing any cam timming on an LT5 any time soon after reading that write up!:o :mrgreen:

That's a bit more than I wanna do at my skill level! That ain't no typical sb chevy stuff!:redface:

:thumbsup:
Tom

[Kevin]

I think vandorn had the magical cam timing setup for a stock cube motor back in the day

[FU]

There is a 91 out there with some bolt on's and P&P work timed cam's that run's 11:5's @ 123 + all day long.

And yes I do beleive that 8388's reading's are correct :thumbsup:

A good bolt on P&P car is a hard combo to beat for the $$

[jonszr1]

Frank, I too would believe him if the motor was ported. but if you read it closely , he stgates it is an absoultly stk motor with no porting at all. TOTALLY STOCK. THAT I DO NOT BELIEVE. I offered to pay for a test session @ Coreys' . he replied with a smart mouthed punk statement. that I was being childish. No class just a little punk with a mouth. IMHO. :blahblah: :blahblah: :mrgreen:

[8388]

Frank, I too would believe him if the motor was ported. but if you read it closely , he stgates it is an absoultly stk motor with no porting at all. TOTALLY STOCK. THAT I DO NOT BELIEVE. I offered to pay for a test session @ Coreys' . he replied with a smart mouthed punk statement. that I was being childish. No class just a little punk with a mouth. IMHO. :blahblah: :blahblah: :mrgreen:


Please take the time to read was done to the 93 and newer engines, and maybe then you'll understand why my plenum was never removed.

Also, you might want to think before you start calling someone a smart mouth punk, with no class.
-SAM-

[jonszr1]

NO , you might really want to think who you are dealing with son. I would make a phone call to Corey before you keep flappin your yap. Put up or go fish.

[GrayZ]

Jon...
easy there big fella...Sam is not a punk..in any sense of the word.
He has 2 zr1's and a stable of other cars and is a corvette guy...
I am sorry you feel like..he's not stating the truth...but...you must
remember..things happen at the factory sometimes...that's why all
cars don't run the same..some faster or slower. Sam is a stand up guy,
and has many business interests, that keep him very busy. No need to attack the man's integrity...i'm the one that started this thread, to see
if there were other car's out there..with similiar results..i've heard of another.."freak" car...but don't know who owns, it. Sam never stated
anything on his car's engine was not altered, he just explained,
HE has never done anything to it...since it left the factory.
I think, someday, something good for all zr1s could possibly come out of a
thread of this nature..after all, sharing results, and idea's, makes the world go round. One, other thing, no body died and made me king of the day...i just know..from experience..that one day..you might..need some help, or you might be standing in line at a zr1 function...and you'll meet a
guy in the food line...with his wife and kids...and it could be someone you
were a little mean to on a forum...:cry: like me. and then you'll feel bad,
like i did....food for thought..keith

[Z Factor]

Civil discourse and disagreement with other peoples point of view can be accomplished without rudeness or name calling. This discussion is interesting in that most of us are looking for greater HP without having to sell a kidney to achieve it. Therefore it can continue with the aforementioned in mind.

:cheers:

[WB9MCW]

Civil discourse and disagreement with other peoples point of view can be accomplished without rudeness or name calling. This discussion is interesting in that most of us are looking for greater HP without having to sell a kidney to achieve it. Therefore it can continue with the aforementioned in mind.

:cheers:


Agreed:thumbsup: ZF u must have been a lawyer in a past lifetime:handshak:

[cuisinartvette]

DM isnt exactly the best place to go for tech information...I have no comment about factory freaks or 8388s car (I dont know him) but I can say some cars can run a BIT stronger than others but in general the "My car is a freak" is old streetracer speak for....

The people assmbling these things didnt decide they got paid too much per hour decided to make a special one, hold up the line and....

[jonszr1]

I am sorry if I offended anyone . Last thing on this, I DiDn't start it!!!!!!!!!!!!!!!!!!.. Being lucky enough to own 3 z 290s and 1 95 I am very familiar with the differences . the cam timing is 10, 20 is the removal of the primary injector boss. plus a little better exhaust my 95 with borla ex no and k &nwith cut filter 361@6300. the car has 13k miles and has 4 % leakdown in the worst cylinder. the stk 90 down to the paper air filter 6% leakdown in the worst cylinder 331.9 @6100. what are the hrwhp figures of other members with totally stk cars It would be intersting to hear. or update the figures on the hp & E.T sheet. I believe that one is 3 yrs old ?

[GrayZ]

DM isnt exactly the best place to go for tech information...I have no comment about factory freaks or 8388s car (I dont know him) but I can say some cars can run a BIT stronger than others but in general the "My car is a freak" is old streetracer speak for....

The people assmbling these things didnt decide they got paid too much per hour decided to make a special one, hold up the line and....

Any where you can find information..IMHO..is the best place for it.
domestic misfits, is a forum, of fun loving car people..they cut up, but
also know what they are talking about...or at least most of them..:mrgreen:

these engines..were hand built...for the most part..extra time and consideraton..were given to them..it said so in the book
"heart of the beast"...that being said, there are a ton of "urban legends"
its all speculation at this point.
When i originated this post...it was to see if others had a car, with similiar numbers, it wasn't Sam spouting off..bragging..he was stating a fact that,
Ls type engines are less expensive in his opinion, to build high horsepower,
than the LT5, not dissing the Lt5, but hey..you can buy an LS7 for about
10 grand...a stroker will cost you double to triple that.
he told me, that his stronger running ZR1 goes 119 mph in the 1/4 ///
and dyno'd at 411 with other zr1 owners dyno'ing too..I would ask Sam,
who some of the others owners,were, if he even knew them?
to compare their numbers, which might give us insight on why his car is about 25 hp..higher than standard, Sam, explained he had never taken the top off his car, so i'm just speculating...that something was done at the factory,, since..his numbers are alot higher..he explained the cams were timed...maybe we can have Sam, explain, if he did the timing, or had it done? Although i know he's not around this forum too much.
Jon, no one thinks you are a bad person, it's just..we wanna keep it
civil, w/ no name calling, and Sam, knows this too. Let's live and learn,
Everyone that posts on this forum is a very valuable commodity, from which we can all learn and make fun of. :mrgreen: You've forgot more than i know, about engines, and tech stuff..:thumbsup:

[GrayZ]

I am sorry if I offended anyone . Last thing on this, I DiDn't start it!!!!!!!!!!!!!!!!!!.. Being lucky enough to own 3 z 290s and 1 95 I am very familiar with the differences . the cam timing is 10, 20 is the removal of the primary injector boss. plus a little better exhaust my 95 with borla ex no and k &nwith cut filter 361@6300. the car has 13k miles and has 4 % leakdown in the worst cylinder. the stk 90 down to the paper air filter 6% leakdown in the worst cylinder 331.9 @6100. what are the hrwhp figures of other members with totally stk cars It would be intersting to hear. or update the figures on the hp & E.T sheet. I believe that one is 3 yrs old ?

My car is a 1990, it's stock other than, headers, and at the time dynamax
ultra's ss catback..no chip..at bowling green, it dyno'd 353.3 rwhp
i have since went to corsa and can feel a seat in the pants difference,
so i'm guessing the corsa added a few ponies...i am taking the car to
haibeck soon, to get gears, and keyless entry installed, at that time,
he will, burn a chip, and just check the car out..i will dyno the car at
BG..for all to compare the numbers...maybe it'll give us a starting point,
as i travel the mod road to heaven. :thumbsup:

[jonszr1]

that sound like fun. you will love the gears first gear is a real squirrell monkey . you will learn to pedal your car . let me know how it turns out and have a great day:mrgreen:

[Z Factor]

ZF u must have been a lawyer in a past lifetime

I suggest civility with no name calling and you turn around and insult me by calling me a lawyer :mad:




































:mrgreen:

[jonszr1]

Were sorry but its your turn:mrgreen: lol

[Pete]

What exactly is involved in doing this? I.e. where are the variables to be aware of when installing or timing the cams? And do you have any suggestions as to when it might be appropriate to try and when it might not be worth cracking the motor?

First let me say that the MPH on 8388's car shows around 400RWHP +- dyno's are a tuning device some might show more some less.

Some later ZR1's make 350-360 RWHP stock with the right cam timing
add another 30RWHP and your close to the 400rwhp or 119mph.

My opinion,the best time to do the cam timing is,when you do heads and intake porting.

In the last few months i have reseached and tried different cam timing and to my suprise what the experts have been saying is all wrong the LT5 also suprised me how it doesn't react like a 2 valve motor with cam timing.
I'm still in the middle of trying different cam timing,i will have more input on this by next week.
I might have to retract about the bigger intake cams not making power,at this time the bigger intake cams seem to be worth about 25-30 RWHP.
Like i said i will have more info about the stock cams and bigger intake cams.

Todd Pepmeiyer(sp), DO NOT i repeat DO NOT install the big intake cams or for that fact stock cams at the specs you emailed me a while back the one Crower recommented unless your looking to loose power,i tried it.
I don't have your email i changed my PC since then.
Todd,e mail me.
Most think of the LT5 like a 2 valve motor in some ways it's right but at the most part it's wrong.

If i came on here posting that my 350ci LT5 makes 470-480rwhp or runs 125MPH would anybody believe me? NO,and i think we would have the same arguement.

My goal to be the first to run 10's N/A 350ci LT5 6spd,with A/C on :mrgreen:
Peace
Pete

[jonszr1]

pete , maybe i can. clear this up a little . i just wanted to see the supporting dyno sheet so i could see where the extra power and tq was made. I went through the same thing not too long ago when I came back from Coreys' and reported 409.9 rwhp and 373.7 tq . Since I did not have the ability to scan my dyno sheet . mailed copyies to those that wanted them as welll as Coreys' ph . so people could see I was not blowing bs. we all would like to find the majic carrot for that 30 extra hp. I for one applaud your efforts to seek the 10s with a stk displacement lt5 . I know you would be proud to supply the supporting data thats part of the fun of seeking to do something that hasn't been done before . maybe I am alittle sensitive because of how i got raked over the coals with my numbers with my mods ( headers flowmaster ex portrd inj and plenum and new prom.) then someone claims to have this with a totally stk car cats and all. and making the same power as my car with mods . i thought i asked nicely just to see the dyno sheet for fun and the ensuing melee was sad . Bob hall allways said I was from the show me state . hope this helps you to see from my point of view for what its worth . id love to talk about some exhaust ideas I have . pm me if its ok to get ahold of you on this subject. :cheers:

[Pete]

pete , maybe i can. clear this up a little . i just wanted to see the supporting dyno sheet so i could see where the extra power and tq was made. I went through the same thing not too long ago when I came back from Coreys' and reported 409.9 rwhp and 373.7 tq . Since I did not have the ability to scan my dyno sheet . mailed copyies to those that wanted them as welll as Coreys' ph . so people could see I was not blowing bs. we all would like to find the majic carrot for that 30 extra hp. I for one applaud your efforts to seek the 10s with a stk displacement lt5 . I know you would be proud to supply the supporting data thats part of the fun of seeking to do something that hasn't been done before . maybe I am alittle sensitive because of how i got raked over the coals with my numbers with my mods ( headers flowmaster ex portrd inj and plenum and new prom.) then someone claims to have this with a totally stk car cats and all. and making the same power as my car with mods . i thought i asked nicely just to see the dyno sheet for fun and the ensuing melee was sad . Bob hall allways said I was from the show me state . hope this helps you to see from my point of view for what its worth . id love to talk about some exhaust ideas I have . pm me if its ok to get ahold of you on this subject. :cheers:

Jon,i had no issues with these postings and shouldn't have been any flames about you asking for a dyno sheet maybe it was the way it was asked and some name calling didn't help, 8388 has been around for a while is good people and if he is lying he is only lying to himself.
If you ever take your Z to the track compare your MPH with his they should be withen 1-2mph depending on altitude and day.

You think you got flak for posting your HP #'s do you know what i went thru when i made 438RWHP and my Z was running mid 11's @ 123+MPH
and this was 5 years ago when no tuners have ever seen these kind of #'s from a 350 and i had dyno sheets,track videos and timeslips.
And now 450RWHP and moving on.

Now i don't care if anybody believes me or not i go to the track and enjoy my Z.

You can PM/email me anytime.

Pete

[WB9MCW]

I will tell everyone I have known ZR-1Pete for 15 years and I have never know him to ever tell me a lie (abt car times or figures) or for that matter even strech the truth even a little---He is a straight shooter and has my utmost respect as a true lover of the ZR-1. That is why he is ZR-1Pete!!! Now if i could just get him and the better half out to the house for a ride on 'Bad Attitude'---right Pete---is this the year???

http://i119.photobucket.com/albums/o128/wb9mcw/badattitudeinflight.jpg

[WB9MCW]

[QUOTE=Z Factor]I suggest civility with no name calling and you turn around and insult me by calling me a lawyer :mad:

OK I'LL MAKE UP FOR IT NOW!!!


WHAT IS THE DIFFERENCE BETWEEN YOUR LAWYER AND YOUR TRAMPOLINE???


YOU TAKE YOUR BOOTS OFF BEFORE YOU JUMP ALL OVER YOUR TRAMPOLINE ---

:sign10:

[Pete]

I will tell everyone I have known ZR-1Pete for 15 years and I have never know him to ever tell me a lie (abt car times or figures) or for that matter even strech the truth even a little---He is a straight shooter and has my utmost respect as a true lover of the ZR-1. That is why he is ZR-1Pete!!! Now if i could just get him and the better half out to the house for a ride on 'Bad Attitude'---right Pete---is this the year???

http://i119.photobucket.com/albums/o128/wb9mcw/badattitudeinflight.jpg

Thanks Bryan
I will try and make it this summer it makes for a nice ZR1 drive up to your place.
Bryan i will try and put togather a Midwest gathering this year like a track rental get the ZR1/Corvette guys to show along with some Viper friends Mustang friends,and your coming.

Pete

[guinnessdood]

I STILL say BS:blahblah: :blahblah: :blahblah: to the 411 RWHP without top end work and headers. If you post your dyno sheet and it says that (actually anything over 400 RWHP), then I will also help pay for your DYNO time to show us...whether it be at BG or at Corey's place. If the car dyno's at over 400 RWHP, then let's inspect the top end to see if any work has been done. I will pay for the new gaskets and the R&R of the Plenum and IHs.:cheers: :thumbsup: