I would like to hear how...

Discuss the RB20, RB25 and RB26 series engines.
Fearsome_tea
Posts: 147
Joined: Sun Apr 15, 2007 6:45 am

Post

I was wondering with other ppl expereances with RB25. I was able to make over 500ps on a completly stock engine, ie... head, head gasket, and bottom end. I have another 25 that I am doing head work on and will be using stock bottom end again. I want see over 650 to the wheels.


s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

Post

weakest points of the stock RB25 bottom end is the ringlands and rings. 450-500 isnt unheard of on stock bottom ends. from what i have read tho, going pass 500 your gonna crack a ringland or say bye to your rings


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