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Hi guys not sure if I'm in the rite section but what ist the difference between rb20 and rb25 stock cams and can you put the 25s in a 20 for a slight power increase just wondering cause I have a set of both but car is getting a 20 put in so chasing free power really

Cheers brenno

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RB25DET cams are designed with VCT in mind, and wont work with an RB20. RB26 cams have been fitted to RB20's though. Do a search and you'll come back with plenty of info. 2nd hand stock R32/R33 GTR cams are pretty cheap too when you can find them.

Pretty well every report I've seen of RB26 cams in RB20 they didn't actually run too well, if at all. I thought about it, but it's a fair bit of effort to run like a bag of shit.

The profiles of the lobes are completely different due to the fact that RB26 is solid lifter and RB20 is hydraulic, the ramp rates for the opening/closing of the valves is vastly different.

Hi guys not sure if I'm in the rite section but what ist the difference between rb20 and rb25 stock cams and can you put the 25s in a 20 for a slight power increase just wondering cause I have a set of both but car is getting a 20 put in so chasing free power really

Cheers brenno

Don't bother camming an RB20 unless your making BIG power (300 rwkw+). Also if you are going to cam, go custom, don't bother with PON Cams - they're poorly made and I've heard loads of troublesome tales about camming the rb20 with Tomei Pon Cams.

If you want good power gains on your RB20 slap on a Z32 AFM, FMIC, Bigger turbo, bigger injectors, bigger fuel pump, full exhaust, plazmaman plenum and a 6boost turbo manifold. I'm waiting on the plenum and turbo manifold to go in and I should see 280rwkw :thumbsup:

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