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Rb27/ Rb28 Vs Staying Rb26


ibrox90
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On 2017-5-21 at 10:36 PM, khezz said:


A high compression ratio, forget, worked 2630 with a gtx4294r on the side sculling e85 through id2000s and 3x044 pumps.

Our first plan was a 26 with twin 2860-5 then we decided to go for 6466. After pooping my pants in an rb28, plan changed again. By luck a few parts for a 2630 turned up along with a turbo kit and here we are.

But I will never forget the difference between my car originally and the 2 gtrs in the shop. They were so well sorted. No flat power spots. Everything just worked.

Because not running twins.

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We had a brief look at running twin GTX low mounts but for the cost and response, big single turned out to be a better choice. I should point out that one of the reasons I went with my combo is parts turned up real cheap all at once.

The previous owner of my turbo was also running a 2630 combo and said that even with a standard compression ratio the car was an animal from 4000rpm onwards but was very easy to drive in traffic. Nothing beats displacement if drivability is a goal.

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