so I have a 92 civic with a B18B swap... I have rebuilt the motor completely and am looking to add boost before it is all installed...
question? - so is the exhaust manifold sizing the same on a civic B16 and integra B18?

reason for this is question is that turbo kits I have seen specify "h", "b", "k" series ... but dont always specify what "B" series motor its designed for.

Help is greatly appreciated,

XERO

 

The B18 E.M. should slightly be taller.

 

bump

 

If you are building a custom turbo setup, it doesn't make any difference at all. You'd still need a custom downpipe anyway, and that would make up the ~9mm difference in deck height between the B16A pattern blocks and B18A pattern blocks.

 

The b16a would use a shorter manifold. You can use the b18 manifold on the b16 but not the other way around. The b18 manifold on a b16 would just hang lower.

 

thats true for regular n/a headers, but he's asking about turbo exhaust manifolds.

Any turbo exhaust manifold for B-series will fit. Once its on and put together, just get a downpipe that will clear the bottom of the motor, as Kai said.

 

Great you guys rock, what about a greddy kit .. there are several i have seen but almost all of them say specifically GSR B18C with this work for my LS application? exhaust manifold only

 

Manifold only? Sure.