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Oh man... reading this only makes me want to convert my R32 GTS-t. :D

What exactly do you need part-wise to do a complete conversion? I've simply assumed that you need the R33 RB25DET, ECU, loom, R33 gearbox, center shaft, rear diff? Is there anything else I'm missing?

Also, since the RB25DET is slightly taller than a RB20DET on the standard mounts, is it simply easier (or better) to leave the mounts as they are or to modify them to get the engine to sit lower?

I've stuck a Stagea RB25DET in my R32 GTS4, and the lowdown torque is just phenomenal. The only other option for a GTS4 is a RB26DETT, but they are expensive. You can get a Stagea halfcut for around $4k, I believe.

The engine slots straight in, and I'm still using the standard drive train. With aftermarket ECU (Wolf 3D), it cranks 180 kw @ ALL FOUR WHEELS on 10psi and crap 95 octane.

  • 3 years later...

I just got my RB25DET (series 2) and I was hoping you could help me with some questions.

My Skyline is non turbo so it will be a big step with the RB25.

Now then, my first question is about the gearbox mounts, I hear they aren't the same and I will also have problems with the speedo meter. What do you know about this? Can I use the Xmember of the R33 ??

The second is about the harness, everyone that has ever swapped an engine told me that the harness is the most difficult part of the swap. Do you have the diagram of the R32 and the R33 (still can't find it for the R32) and some pointers on how this is done??

Hope to get a reply from you soon

Carlos Rudolph

  • 1 year later...

Hi every1, I have done a RB25DE Conversion to my R32 GTST Due to the P Plate Laws. Im having Trouble with 1 Plug, I Used the RB25de Loom bu used the RB20 Fuse Box, There are 2 Plugs on the RB25de infront of the intake manifold, 1 of them are suppose to plug into the R33 Fuse box, it Supplies the Computer with power (To my nderstandig anyway), Now on the R32 Fuse Box i dont have this plug, Wat the best way to go about this? Cheers Guys

  • 2 weeks later...
  • 3 months later...

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