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Old Aug 26, 2008 | 10:15 AM
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Default the 500 hp limit

OK guys I have a 2002 Corvette and im pretty sure I going to be doing mods this winter I know about the trans but whats the weak link that limits me to 500 hp from my engine without a bunch of problems
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Old Aug 26, 2008 | 10:32 AM
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Originally Posted by fundog
OK guys I have a 2002 Corvette and im pretty sure I going to be doing mods this winter I know about the trans but whats the weak link that limits me to 500 hp from my engine without a bunch of problems
For starters when you go to 500 rwhp you will likely have clutch and rear end issues depending on how you drive it!
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Old Aug 26, 2008 | 10:45 AM
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Why is there a 500rwhp limit?
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Old Aug 26, 2008 | 11:14 AM
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Originally Posted by nickolbag
Why is there a 500rwhp limit?
There are guys well over 500rwhp in the F/I section without any issues.
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Old Aug 26, 2008 | 11:20 AM
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Originally Posted by black98c5
There are guys well over 500rwhp in the F/I section without any issues.
for now. Starting to see many guys who made these 500rwhp beasts last year have problems now.

Start with a fresh create LS6 or LS2 ( with 24 tooth wheel ) create motor.
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Old Aug 26, 2008 | 11:32 AM
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for now. Starting to see many guys who made these 500rwhp beasts last year have problems now.

Start with a fresh create LS6 or LS2 ( with 24 tooth wheel ) create motor.

https://www.corvetteforum.com/forums...ies/iagree.gif


If you need a little more power an LS3 crate engine.
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Old Aug 26, 2008 | 12:07 PM
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Is it the rotating assembly or the block ?
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Old Aug 26, 2008 | 12:19 PM
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Originally Posted by black98c5
There are guys well over 500rwhp in the F/I section without any issues.
Over 500RWHP without issues? On a stock clutch? Stock rearend? Depends how they use the car. I'll buy the stock rear if they never go to the dragstrip and auto-x only, but not the stock clutch. I'm only at 520RWHP, and my stock clutch was no match. I also went with a RPM differential, because I like to drive my car home from the strip, as opposed to on a flatbed.
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Old Aug 26, 2008 | 12:28 PM
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I'm at 525 rwhp with V2 T-trim supercharger with stock rear and clutch and ive been literally beating the living crap out of the car for 1200 miles and probably done 100 hard launches and hundreds of freeway romps all through the gears slamming at redline into next gear and all is still fine with 41K on clutch and still grabbing like it was brand new. I'm really surprised the clutch is still going. I thought my pressure plate went south the other morning slamming into 3rd, but it was fine after a few more romps.

I'm tempted to go more boost just to see how it handles it and if it blows before I put a forged 402 in it for some serious hp.

Last edited by briann510; Aug 26, 2008 at 12:31 PM.
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Old Aug 26, 2008 | 12:31 PM
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Originally Posted by lucky131969
Over 500RWHP without issues? On a stock clutch? Stock rearend? Depends how they use the car. I'll buy the stock rear if they never go to the dragstrip and auto-x only, but not the stock clutch. I'm only at 520RWHP, and my stock clutch was no match. I also went with a RPM differential, because I like to drive my car home from the strip, as opposed to on a flatbed.
I thought we were talking about motor issues?

LS1 clutch will go well before 500rwhp and you can break output shafts with a stock car. So if we are talking stock drivetrain parts I'd lower that 500rwhp limit.

I was under the assumption that the car would be built. 500rwhp or more can be done with very good reliability if you do not cheap out on the build. If you want fast and reliable it is going to cost money. It can be as fast and reliable as your wallet can afford.
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Old Aug 26, 2008 | 02:15 PM
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Originally Posted by briann510
I'm at 525 rwhp with V2 T-trim supercharger with stock rear and clutch and ive been literally beating the living crap out of the car for 1200 miles and probably done 100 hard launches and hundreds of freeway romps all through the gears slamming at redline into next gear and all is still fine with 41K on clutch and still grabbing like it was brand new. I'm really surprised the clutch is still going. I thought my pressure plate went south the other morning slamming into 3rd, but it was fine after a few more romps.
What tires do you have on the rear?
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Old Aug 26, 2008 | 02:16 PM
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Originally Posted by nickolbag
I thought we were talking about motor issues?

LS1 clutch will go well before 500rwhp and you can break output shafts with a stock car. So if we are talking stock drivetrain parts I'd lower that 500rwhp limit.

I was under the assumption that the car would be built. 500rwhp or more can be done with very good reliability if you do not cheap out on the build. If you want fast and reliable it is going to cost money. It can be as fast and reliable as your wallet can afford.
You are correct it will be built but im trying to head in the wright direction and that for me would be finding out what the weak link is
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Old Aug 26, 2008 | 02:23 PM
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Originally Posted by nickolbag
I thought we were talking about motor issues?

LS1 clutch will go well before 500rwhp and you can break output shafts with a stock car. So if we are talking stock drivetrain parts I'd lower that 500rwhp limit.

I was under the assumption that the car would be built. 500rwhp or more can be done with very good reliability if you do not cheap out on the build. If you want fast and reliable it is going to cost money. It can be as fast and reliable as your wallet can afford.
I was refering to the motor ONLY. I upgraded to a RPM diff with all the goodies and will be doing so with the trans as well to support my added power I will be making soon.

Last edited by black98c5; Aug 26, 2008 at 02:26 PM.
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Old Aug 26, 2008 | 02:24 PM
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Originally Posted by fundog
You are correct it will be built but im trying to head in the wright direction and that for me would be finding out what the weak link is
No rocket science there: depending on how far you go....differential, clutch (torque tube bushings should be inspected for cracking), and bottom end (depending on how much boost you want).

Differential can end up costing you $$ if you don't upgrade. A broken output shaft can break the diff case. If the case splits the right way, and twists, it can take out the mainshaft from the tranny.

Fail to plan....plan to fail

There will always be a small percentage of guys that don't upgrade the drivetrain, and brag about how much they beat on their cars, and have not broke a thing. Eventually, their cars will get towed home.....just a matter of time.

Last edited by lucky131969; Aug 26, 2008 at 02:27 PM.
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Old Aug 26, 2008 | 02:52 PM
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Originally Posted by fundog
You are correct it will be built but im trying to head in the wright direction and that for me would be finding out what the weak link is
Auto or 6 speed?

What are your goals? Make 500rwhp or as much as possible? Any kind of budget? How do you want to do it? NA or FI?
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Old Aug 26, 2008 | 04:17 PM
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Originally Posted by nickolbag
Auto or 6 speed?

What are your goals? Make 500rwhp or as much as possible? Any kind of budget? How do you want to do it? NA or FI?
its an auto all I wont is 500 rwhp and I really dont wont to use a blower or turbo but ive always loved the sound of a cam I already know the trans is going to eat up about 75 hp
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Old Aug 26, 2008 | 09:21 PM
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Originally Posted by fundog
its an auto all I wont is 500 rwhp and I really dont wont to use a blower or turbo but ive always loved the sound of a cam I already know the trans is going to eat up about 75 hp
Thats a pretty tall order for 347c.i. N/A. Totally doable but street manners will need a real good TUNE. At 500 RWHP 15-20K motor, cooling, ect. and you have not even addressed your short to live stock drivetrain.

F/I is cheaper HP

John
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Old Aug 26, 2008 | 09:42 PM
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Originally Posted by Jnape
Thats a pretty tall order for 347c.i. N/A. Totally doable but street manners will need a real good TUNE. At 500 RWHP 15-20K motor, cooling, ect. and you have not even addressed your short to live stock drivetrain.

F/I is cheaper HP

John
You want 500 rwhp you gotta go f/i (and a whole lot of other additions)

Your reading assignment:


http://forums.corvetteforum.com/show...+modifications

Should answer your query in spades
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Old Aug 26, 2008 | 10:52 PM
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500rwhp NA shouldn't be a problem but if you want to do it and keep it relativly reliable your gonna have to go with a stroker of some sort. You are going to need to build your trans and a TC would be a good idea too. Strengthen the rear and a drivers side output shaft and you should be good. You plan to drag race it or is this just a cruiser?
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Old Aug 26, 2008 | 10:58 PM
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Originally Posted by lucky131969
What tires do you have on the rear?
I have Nitto 555R2's and pull 1.85's with them. I'm not a track drag racer much at all but more of a freeway runner and back roads twisties driver is probably why I havn't blown anything up yet. Most of my hard romps are heavy in 2nd, 3rd and 4rh only now.

I really dont care if I bust something stock as I'm ready to upgrade the whole trans/rear anyway.

Last edited by briann510; Aug 27, 2008 at 02:14 AM.
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