planning for a B18B1 swap, need help!

[crazee_4_civic]

hey guys! i m just plannin to put a B18B1 swap in mah 92 civic H/b, i just needed some pointers on da header and the catback exhuast, and what turbo kit is compatible with the B18B1 engine.

[GScivic7]

don't get a header if you are going to get a turbo, the turbo manifold will replace it and it's just wasting a good $400 that could go towards the turbo kit. Revhard makes the best turbo kits IMO. For exhaust go with a custom one. Carsound high flow cat, 3 inch piping, and an Apex'i N1 turbo muffler.

[Beastiek2]

GS why custom?

[GScivic7]

custom exhaust? Cause you can save yourself about $200. Turbo exhausts are expensive. The the carsound cat should cost about $100, Apex'i N1 turbo muffler about $200 and piping and install shouldn't be more than $100. That's only $400 and you can have the muffler shop bend you the straightest exhaust route possible. Most of the turbo cat backs i've seen go for $600 and thats without the highflow cat.

[Beastiek2]

Gottcha I was just wondering why a custom one would be better then purchasing one. I guess price is the benefit here not so much performance.

[GScivic7]

yah it's all about price, but performance shouldn't differ much, if at all, between the two.

[crazee_4_civic]

thanx guys... then i think i might do da custom, but is it gonna have da same effect when it comes 2 performance?

[GScivic7]

Originally Posted by GScivic7

performance shouldn't differ much, if at all, between the two.

^^^

[crazee_4_civic]

wudnt the N1 rub agaisnt da speed bumps cuz i m lowerin mah car 2, i got AGX adjustables and H&R sport springs

[GScivic7]

not if you mount it high. The ones that rub are the catbacks. They have the piping at an angle so the piping rubs. But if you just get the muffler and custom piping bent you won't rub

[gunnmen01]

you dont need 3 inch piping, 2 1/4 would work fine and still clear with lowering the car, 2 1/2 if you really want too, but 3 inch isnt really necessary....


gunnmen01

[GScivic7]

on a turbo, you will choke it using 2.25". It'll spool faster with 3" piping

[95dxcivic]

Originally Posted by GScivic7

on a turbo, you will choke it using 2.25". It'll spool faster with 3" piping

He probably didnt read where it said that this exhaust system was for a turbo car.

[b18ls]

I heard that high flow cats can cause torque loss, or is it straight pipe? Anyone heard this before?

[GScivic7]

any part of your exhaust system that you replace to reduce back pressure will give you torque loss.

A lot of turbo cars you will see re-routing their wastegate dump tubes back into their exhaust to increase back pressure and supposedly it helps with boost spike.