"Kagotani had quite a challenge on his hands when it came to the engine, as he needed to create a responsive yet very powerful set up able to give instant acceleration out of corners. He based the motor around a limited edition "RRR" 2.8L Nismo GT block, the same cast iron block that the JGTC and Super GT GT500 GT-Rs used to use in competition. This, along with the HKS 2.8L kit, would allow for faster spool up of the Trust T88-33D single turbo that was chosen. Kagotani-san made sure the head was as efficient as possible so dedicated a lot of time to porting and polishing all surfaces before he threw on a ton of Tomei Powered goodies like valve springs, guides, 270ยบ cams and adjustable cam pulleys. I especially liked the transparent air box! " Source: Speedhunters