exhaust manifold designs, getting mine redone Options

[easternpiro1]

hey all, been researching good designs for an exhaust manifold. if some of you dont know, there have been issues with my exhaust manifold from day one and essentially i wasnt happy with its design and quality, (is currently leaking from the flange near the turbo, and wastegate off one runner)so like lagos says: do half assed once do it right the 2nd time.

i will stop there or else i will start a rant. but anyway, anybody got some decent design pics? i want a tubular equal length header , of course with w/g coming from where all 4 runners converge. I got a few ideas from tweak and Pitcelica and a few others.

here's some that i like:

<<(thanks pit)








here is a pic of how its currently set up,



This post has been edited by easternpiro1: Apr 29, 2009 - 10:51 AM

[TRDGT4]

here's a couple of pics of my manifold they are all equal length and run onto one before the collector could be made into twin scroll easy as

[olaHalo]

here's a couple of pics of my manifold they are all equal length and run onto one before the collector could be made into twin scroll easy as

This looks amazing. i love it
i much prefer equal lenghts



this is my scion tC

Why dont you grab a stock 3rd gen manifold, and use a t3 adapter? Thats going to be more reliable than any tubular manifold (unless you spend big money on one).

im curious of how a log manifold will be more reliable than a equal length one? is it because of the wastegate flange
leaking? or is there something special about the stock manifold. (serious question)

cleanest and best way i think

do you have a wastegate dump tube? or do you just let it open in your engine bay?

[alltracman78]

im curious of how a log manifold will be more reliable than a equal length one? is it because of the wastegate flange
leaking? or is there something special about the stock manifold. (serious question)

Reliable doesn't mean higher performance.
Cast iron is less apt to crack than tubular steel.

BTW the stock manifold isn't a log manifold.