My S14 Kouki with stroked RB30 (3.2L)
02-21-2012 | 04:47 PM
#1
Thread Starter
Former Sponsor
Joined: Sep 2011
Posts: 64
From: Brookfield, CT
My S14 Kouki with stroked RB30 (3.2L)
Hey again everyone.
This is my personal project and my company demo car that we have been slowly building for some time. In the link is the 2010 setup when were were running a stroked RB30 to 3.1L. This past summer the block was sent out to a shop in Chicago where it has been stroked even further to 3.2L. We hope to have it back in the car early this coming year and get it out for some driving once again.
To our knowledge, there is only 1 other 3.2L RB in North America. It is an S13 out in Chicago that we wired up last year.
A few details:
3.2 L RB30
Twin HKS GTRS
740cc Nismo injectors
Aussie Rods and Wiseco Pistons
Tuned on AEM
The head is an RB25 head modified for the RB26 manifolds. I really wanted to stick with cast iron reliability. I had a few manifolds crack on my SRs so I am running stock manis and needed to re-drill the head. No problems and was done when the head was being worked on for the RB30 install.
Power comes on very linear and has been very reliable. On stock RB25 cams and a conservative tune I made the following:
Made 380WHP and 390 Tq at 9 lbs of boost
Made 545 WHP and 550 tq at 20 lbs on 94 octane
This is from last year when it was 3.1L
Motor has been at a shop in Chicago pretty much since.
With aftermarket cams and a more aggressive tune for the track, should be able to make 600 whp at about 20-22 lbs psi.
Will post up more pics here as we get the new block back and get back to working on the car. If you have any questions about the build or just want to comment, don't hesitate to post up.
This is my personal project and my company demo car that we have been slowly building for some time. In the link is the 2010 setup when were were running a stroked RB30 to 3.1L. This past summer the block was sent out to a shop in Chicago where it has been stroked even further to 3.2L. We hope to have it back in the car early this coming year and get it out for some driving once again.
To our knowledge, there is only 1 other 3.2L RB in North America. It is an S13 out in Chicago that we wired up last year.
A few details:
3.2 L RB30
Twin HKS GTRS
740cc Nismo injectors
Aussie Rods and Wiseco Pistons
Tuned on AEM
The head is an RB25 head modified for the RB26 manifolds. I really wanted to stick with cast iron reliability. I had a few manifolds crack on my SRs so I am running stock manis and needed to re-drill the head. No problems and was done when the head was being worked on for the RB30 install.
Power comes on very linear and has been very reliable. On stock RB25 cams and a conservative tune I made the following:
Made 380WHP and 390 Tq at 9 lbs of boost
Made 545 WHP and 550 tq at 20 lbs on 94 octane
This is from last year when it was 3.1L
Motor has been at a shop in Chicago pretty much since.
With aftermarket cams and a more aggressive tune for the track, should be able to make 600 whp at about 20-22 lbs psi.
Will post up more pics here as we get the new block back and get back to working on the car. If you have any questions about the build or just want to comment, don't hesitate to post up.
Last edited by wiringspecialty; 02-21-2012 at 04:50 PM.
02-25-2012 | 11:14 AM
#3
Thread Starter
Former Sponsor
Joined: Sep 2011
Posts: 64
From: Brookfield, CT
It is built for much much more. Cams are limiting it right now along with a few other things. We are going to keep it close to this mark though. It is a very linear 600. Power comes on right across the board and fairly quickly with the twin setup.
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