Header & Exhaust combo for max power?

[wparsons]

Originally Posted by mav1178

... but this depends on your local autocross course design. Some places like to put in courses with a lot of 2nd and 3rd gear changes.

-alex

That's the key! I would look at logs/video from typical courses you would be running to see where the rpm's spend most of their time, then look at dynos to see which header gives you the most area under the curve based on the realistic rpm range you need.

If you're spending more time in the 3000-5000 range, a 4-2-1 will likely be way better. If it's all over 5000 then 4-1 will probably win out.

[copafeel]

Originally Posted by kosoku

trippinbillies - check out ptuning's header. They got 200hp with header and a 3" exhaust (I think the 2.5" would be better) + a tune.

Just my opinion but I think EL is the way to go for high REV's. UEL I think is better for the torque dip (someone correct me if I'm wrong).

Agreed. For max top end power, this answers your question, op. Ptuning header .

[evomike]

Originally Posted by 2016 Camaro SS

Perfect setup. I run that exactly. End of thread. I'll just save you a lot of time and you won't be disappointed.

and you have zero proof that this is correct except your butt dyno

[2016 Camaro SS]

Originally Posted by evomike

and you have zero proof that this is correct except your butt dyno

If you'd like to pay for my dyno pulls, I'll get you numbers, but most likely it will just end up being, "Oh, that dyno is known to give high numbers or its off".

I've got 20+ datalogs you can go through if you'd like.


Not to mention the other threads containing JDL UEL headers combined with headerback exhausts breaking 190-200 whp constantly.

If the OP is going for a pure STX build though, maybe a 4-2-1 merged EL might be a better choice. UEL's are pretty solid for daily drivers.

[kosoku]

OP, make a decision?

[stockysnail]

Nameless performance 3" kit (axleback, mid, front, over) with either the Nameless Performance headers (EL) or the JDL (UEL).