4-2-1 vs 4-1 for the B18c1

[Project-LXi]

Ok, here is the deal. b18c1s redline at 8200rpm. It is my understanding that 4-1 headers push mostly all top end power, whereas 4-2-1 give a better midrange. Here is what Im doing to the engine:

Intake
Cat Back Exhaust
AEM Tru Power Pulley Kit
Skunk2 Stage I Cams
Fidanza Aluminium flywheel.
and of course a header, which brings me to my question:

Which would make more power for 0-60 and 1/4 mile?

[Justin86]

Well most likely an 4-2-1 will help out in the lower to mid range power. 4-1 is more for racing concepts and high reving. With the C1 you really can't go wrong with any header, just get something that you will justify your driving style. If you plan on doing many more mods then what you have listed you might want to get a 4-1.

[bobafett]

http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

here u go u just need a few other parts to make it work properly.

[Justin86]

Man I love those design of turbo manifolds, they are just so damn smooth. BUT a 12PSI wastegate, what the hell is that if it can't hold up to at least 30PSI+ then It ain't worth the money.

[bobafett]

lol its just set for 12psi...
u can either adjust, or buy new springs for different boost levels...