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hi all just wondering with this, could be obvious but just to be sure

i have an rb25det head with r33 gtr cams and r33 gtr valve springs

can i put gtr poncams straight in it, and if so would it be a worthwhile gain

engine mods

rb25/30

tdo7s turbo- t04r comp wheel, back cut t66 rear wheel, 360deg. thrust bearing

352rwkw on 16psi

huge list of mroe engine mods

ben...

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The whole cam situation confuses the hell out of me.

Im building an RB30DET with RB25DE head, and have bought a set of GTR valvesprings. Unsure which model they are from.

Im uncertain as to what sort of cams I could use?

This is almost as confusing as the loom / injector situation!

Edited by MarkE

Not a good idea. Solid cam profile in the RB26 Vs Hydro' in the RB25 means the ramps are not right for the lifters you are running. If you convert the whole thing to a solid cam/lifter and shim setup then great.

Just go buy the right cams for your engine and save yourself the hassle.

ive got an r33 rb25det head series 2, it was just a pain in the ass gettin the coils, injectors etc with the loom to get goin properley at the start although its all sorted, just a bit of re wiring of some stuff

im using sard 550cc injectors

power fc ecu

ben...

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