Wich is the max PSI for a Stock Camaro SS 2012 L99 - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jessrayo · 09-09-2014, 06:09 PM

Quote:

Originally Posted by Rdunn

I have been running 16-17 psi on mine for a year now... No problems.car is somewhere between 800-900whp

I'm on e85 with 100% meth

And you have a completely stock L99 bottom? That is what the OP is asking is how much boost or power you can make on a completely stock bottom. I guess it is possible but I don't think a lot of people are making that kind of power on a stock bottom. I agree with Unreal, keep it under 700-750 on the dyno and you are okay. Whatever boost that ends up may be more on a stock motor because it is more restricted.

SmokedSS · 09-10-2014, 05:17 AM

Quote:

Originally Posted by jessrayo

And you have a completely stock L99 bottom? That is what the OP is asking is how much boost or power you can make on a completely stock bottom. I guess it is possible but I don't think a lot of people are making that kind of power on a stock bottom. I agree with Unreal, keep it under 700-750 on the dyno and you are okay. Whatever boost that ends up may be more on a stock motor because it is more restricted.

700 may be good if your lucky but who wants to be lucky? I was at 658rwhp on a liberal dyno and it blew within 500 miles and on the 6th 1/4 mile pass. I wasn't lucky. If I was to do it over I would forge before getting over 8-10 psi. Hopefully my car just had weak internals?

z06-tt · 09-10-2014, 08:25 AM

Quote:

Originally Posted by SmokedSS

700 may be good if your lucky but who wants to be lucky? I was at 658rwhp on a liberal dyno and it blew within 500 miles and on the 6th 1/4 mile pass. I wasn't lucky. If I was to do it over I would forge before getting over 8-10 psi. Hopefully my car just had weak internals?

if a lot of people can make more than you.... then more than likely it was a bad tune. but 660 is extremly low for a 6.2 to break...

ChibiBlackSheep · 09-10-2014, 08:43 AM

Quote:

Originally Posted by SmokedSS

Big hole in the block

Don't know initial cause.

My guess would be predetonation

SmokedSS · 09-10-2014, 02:01 PM

Quote:

Originally Posted by ChibiBlackSheep

My guess would be predetonation

LPE twin pumps, ID 850 inj, and Alky ctrl dual nozzle meth, Don't think I ran out of fuel?

ChibiBlackSheep · 09-10-2014, 02:13 PM

Quote:

Originally Posted by SmokedSS

LPE twin pumps, ID 850 inj, and Alky ctrl dual nozzle meth, Don't think I ran out of fuel?

Just because the car can supply it doesn't mean the tune was asking for it, IMO.

It's possible that you ran lean, predetonated and blew a hole, or the car was just trying to command way too much timing.

Rdunn · 09-10-2014, 02:33 PM

Quote:

Originally Posted by jessrayo

And you have a completely stock L99 bottom? That is what the OP is asking is how much boost or power you can make on a completely stock bottom. I guess it is possible but I don't think a lot of people are making that kind of power on a stock bottom. I agree with Unreal, keep it under 700-750 on the dyno and you are okay. Whatever boost that ends up may be more on a stock motor because it is more restricted.

Yes the car is 100% stock long block with a cam.

And there are quite a few people well over 900 and running fine on a stock motor.

I've ran this one as high as 22 psi making well over 900whp and it was fine

Rdunn · 09-10-2014, 02:34 PM

Quote:

Originally Posted by SmokedSS

700 may be good if your lucky but who wants to be lucky? I was at 658rwhp on a liberal dyno and it blew within 500 miles and on the 6th 1/4 mile pass. I wasn't lucky. If I was to do it over I would forge before getting over 8-10 psi. Hopefully my car just had weak internals?

Sorry but these motor live all day with that kind of power.... I would be talking to your tuner, because that's the only way it should have let go at that low of a power level

SmokedSS · 09-10-2014, 03:33 PM

Quote:

Originally Posted by Rdunn

Sorry but these motor live all day with that kind of power.... I would be talking to your tuner, because that's the only way it should have let go at that low of a power level

thanks but sorry talking to my tuner aint going to happen as they made it perfectly clear it had nothing to do with them even though it blew 1st pass after re-tune with all fail safes locked as to not allow timing to be pulled.. I was an idiot to allow but I guess I didn't know better. Its over now just trying to help someone not go through what I did but if these motors will handle more then I say that's great and best of luck. The forum has been alot of help with my build, thanks

jordaromera · 09-10-2014, 03:39 PM

Quote:

Originally Posted by Rdunn

Also there are quite a few cars running well over 900whp to the tires with no problems

JAJAJA 900WHP!! Really? Incredible!! I would be very happy with 700rwhp!

Quote:

Originally Posted by SmokedSS

700 may be good if your lucky but who wants to be lucky? I was at 658rwhp on a liberal dyno and it blew within 500 miles and on the 6th 1/4 mile pass. I wasn't lucky. If I was to do it over I would forge before getting over 8-10 psi. Hopefully my car just had weak internals?

who made his tunning file?

believe that I can expect rwhp with stock L99 with 10 psi at meth at 50%?

jessrayo · 09-10-2014, 08:14 PM

Quote:

Originally Posted by Rdunn

Sorry but these motor live all day with that kind of power.... I would be talking to your tuner, because that's the only way it should have let go at that low of a power level

I disagree, I bet if I took your car out on an open track day at my local road course that I could not run it all day with that kind of power. Try making 40 1/4 mile passes every half hour for the better part of an afternoon. That's what my car did when road racing and at 800 whp it blew a head gasket. It has nothing to do with the tune. When the engine temps rise and the metal starts to expand the cylinder pressure lifts the head and blows the gasket. I'm not the only one that has experienced this.

You may be able to run one 1/4 mile every 15 minutes all day but if you try to run the car until the engine oil temp gets over 300 with more than 750 whp you are going to have problems.

sprayedv · 09-10-2014, 11:21 PM

lol @ people who calculate engine life via rwhp.

Has nothing to do. There's no magical rwhp # that will make your engine explode. It depends on lots of factors.

Personally to not COMPLICATE things, I would just run single digit boost on the mainstream superchargers. Turbos may get trickier.

Quote:

Originally Posted by Rdunn

Sorry but these motor live all day with that kind of power.... I would be talking to your tuner, because that's the only way it should have let go at that low of a power level

False. The block yes but running stock internals no.

sprayedv · 09-10-2014, 11:25 PM

Quote:

Originally Posted by Rdunn

Yes the car is 100% stock long block with a cam.

And there are quite a few people well over 900 and running fine on a stock motor.

I've ran this one as high as 22 psi making well over 900whp and it was fine

For your few that have survived I can find 100s that haven't.

Stop trying to peddle this across before someone reads it and tries to do it.

fif_gen_powa · 09-11-2014, 04:08 AM

Quote:

Originally Posted by SmokedSS

thanks but sorry talking to my tuner aint going to happen as they made it perfectly clear it had nothing to do with them even though it blew 1st pass after re-tune with all fail safes locked as to not allow timing to be pulled.. I was an idiot to allow but I guess I didn't know better. Its over now just trying to help someone not go through what I did but if these motors will handle more then I say that's great and best of luck. The forum has been alot of help with my build, thanks

Your tuner is a POS