RB31.5 Street Attack Build

[jdms13rhd]

Hello,

The crankshaft was sent out to a shop, where stroke was increased.

Your using the std rb30 crankshaft, right?

Im always happy to see more guys with 30's. Free power!! More people should hop on that boat. Even more so for the rwd guys! Conservative people need to think out of the box

[MarusGTR]

Good job on getting me stoked for your build lol

[4jo3]

Hello,

My motor build is coming to a close and I thought I would start a build thread to get some ideas and some input. First off, this is NOT the OS Giken 3.15L. We decided to build this motor from a bunch of different suppliers and they are mostly custom parts. The crankshaft was sent out to a shop, where stroke was increased. We also increased bore size by 0.5mm.

I'm building this car for response. I have future plans to turn this car into a time attack car but for now it will remain as a street car as I don't really want to thrash on it the first year that it is built. Don't be mistaken though, it will see track days this year but I won't push the limits as my build has many weaknesses that will be addressed in the future. I have had the car for 3 years now and it has sat in the garage / outside most of its life. I drove it for a total of 5 or 6 months, I think. It wasn't long before I decided to pull the boost restrictor and blew my rear turbo. After a year, I put upgraded turbos and replaced everything on the turbo side with upgraded parts, injectors and ecu. Well after about a week of running, the intake valveguide broke and scored the bore. So I parked the car again.

This brings me to now. I imported a bunch of rb30 blocks and the build begins. Right now, my car sits at my shop and looks like this...