I'm building my motor a little bit this summer, mating a b18c1 block with my b16 head and using the b16 head to keep (actually raise) my compression. I know I can use my b16 ecu, but do I have to use a gsr timing belt? I hear that you do because the b18c is a litte bit taller....thanks ya'll
Quick b18c/b16 question
- Thread starter Going-West
- Start date
im pretty sure its the same belt
Thanks, anyone else know for sure?
Yeah I'm pretty sure I'll have to use the gsr belt because of the block just making sure. Thanks JL
Gsr belt or type R belt. B16 has a smaller belt and wont fit. Ls belt must be used if an Ls water pump is used. But if you use a b16/type R/Gsr water pump, then just use the gsr one.
And btw, changing the head on a gsr which has a 41cc-ish cc combustion chamber to a b16 head which has a 42cc-ish combustion chamber will actually lower your compression b/c the gsr has lower compression pistons compared to the b16.
both engines factory make the same compression
b16=larger combustion chamber with larger slug pistons
b18c1=smaller combustion chamber with smaller slug pistons.
So you will lower your compression and the cams in the b16 are also weaker than the gsr. Like 3whp which is 8-10 flywheel hp. You may make up for 1 whp b/c of head flow but the poor mans type R is kinda wierd to me. Better than an Ls/vtec but wierd. Less compression than a b18c but slightly better head flow with weaker camshafts. What does one make really. I'm kinda curious. It still has a 10:1 cr instead of 10.2:1.
I know you know your stuff so none of this is an insult, just figured I'd throw the info out there.
And btw, changing the head on a gsr which has a 41cc-ish cc combustion chamber to a b16 head which has a 42cc-ish combustion chamber will actually lower your compression b/c the gsr has lower compression pistons compared to the b16.
both engines factory make the same compression
b16=larger combustion chamber with larger slug pistons
b18c1=smaller combustion chamber with smaller slug pistons.
So you will lower your compression and the cams in the b16 are also weaker than the gsr. Like 3whp which is 8-10 flywheel hp. You may make up for 1 whp b/c of head flow but the poor mans type R is kinda wierd to me. Better than an Ls/vtec but wierd. Less compression than a b18c but slightly better head flow with weaker camshafts. What does one make really. I'm kinda curious. It still has a 10:1 cr instead of 10.2:1.
I know you know your stuff so none of this is an insult, just figured I'd throw the info out there.
I'm aware of the compression drop, I am using the b16 pistons in the gsr block 
Should put me about 11:1 compression and then later on after I get my koni shocks I'm upgrading to ITR/CTR cams.
Should put me about 11:1 compression and then later on after I get my koni shocks I'm upgrading to ITR/CTR cams.