Will there be any performance gains? I know ill have to change the ecu but will there be any noticable differences in it vs the gsr head? Please give me more information...

 

b16 uses a single stage manifold, and it flows better than the GSR head, basically an ITR head - the port/polish.

 

Why does everyone think the B16 head flows better than the GSR head???

Because they use it on the ITR???

I'd love to know your reasoning on this.

 

isnt the b16a head from the same cast as a type R? The type R head uses a different valve train and manifold and has a p/p.

 

the singe stage intake manifold is better flowing.

 

question?
Is it worth getting a Skunk 2 intake manifold for a turbo application for a full GSRT?

 

yes, it is.

 

I gotta comment on this.

Honestly for flow on the last third of the tach the single stage is better. But the GSR intake gives you a flatter curve, meaning that your car will feel faster around town when not banging off the limiter. Don't even look at what all the 500+ whp guys are running you don't need all that flow.

But if you are using a B16 head you can't easily bolt up the GSR manifold anyway.

I don't know all the math but the B16 has a larger combustion chamber, so you will probably be losing some compression, even with the ITR piston.


[Modified by eh-D, 6:31 AM 12/23/2001]

 

eh-d was right on the compression, the GSR head will have higher compression, but I've also heard the B16 head flows better.

 

I also belive the intake and exhaust runners are a little different, anyone care to expand on this?

 

with ITR pistons in the B18c1 i would stay with the GSr head. if u want to use a B16 head i would go CTR pistons then

 

If you want to go single runner then jst get a Skunk2 manifold and run a GSR head. I remember reading somewhere that the ITR head flows best then GSR then the B16 heads.

 

the b16 is a closed chamber head and the b18c1 head is open chambered

 

GSR heads are good but have a handicap due to smaller combustion chamber, meaning less volume than an ITR or B16 head. The smaller chamber means more compression. GSR heads have .3 higher compression with the same pistons as an ITR or b16 head (based on a b18c bottom end). PR3 heads allow more volume.

 

Actually the ITR head is the B16A head. The B16 was introduced in 1988, and the ITR in 1995.

The ITR head get's ligher valves, dual valve springs, and a mild port and polish.