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payback21

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Posts posted by payback21

  1. I would imagine there would be quite a bit of wiring change going from a RB20DET to a RB25DE motor but i could be wrong. My personal recommendation is that you get a R32 GTR front cut with wiring loom, motor/box and just swap everything straight over. If your bored like me with the RB20 because it doesn't cut the cake, stick a RB26 in it. Heres a link to my engine conversion going from a RB20 to a RB26 on my R32 GTS4 4 door. It was a very easy job to do. RB26DETT Into A Gts-4 Conversion

  2. the only reason you would need to regap plugs to .8 is if the coilpacks are tired, if your coilpacks are fine you run standard gap.

    Some people gap there plugs (including myself) to .8 on higher than standard boost. This is why i asked what boost he was running. On higher than standard boost engines, the more boost pressure tends to blow out the spark because of the gap being too big making the spark jump all over the place. (Hence why its breaking down). A little trick Denzo told me about a while ago.

    Coilpacks maybe another fault. Its a trial and error problem.

  3. Check the intake pipe going from the AFM to the side of the turbo. They can wriggle off abit being a little loose and can suck air in making the car unable to idle properly and rev correctly.

    While wriggling the pipe to check, you may need a torch to see if it has come off from the turbo. Its just a thought to check out.

  4. Everything bolts up the same. Its the pipe work connecting to the power steering pump and air con pump that is different.

    Also you have to remember that the plum back system on a RB26 is way different to the RB25. Another thing different is having 2 O2 sensors on 26 dump pipes. Accelerator cable is also something else that needs to be changed from memory. The list goes on...

    I totally recommend you go with a R33 26 loom and ecu. Your asking for a big headache using the 25 loom.

  5. To be honest, i think you would be better to change all the wiring loom and ecu with a R33 GTR wiring loom and ecu.

    What i did with my R32 GTS4 was get a R32 GTR half cut, having all the wiring loom, ecu, motor, dash, intercooler, piping etc and then just swap it all straight into my GTS4. It was so much easier to do compared to chopping the original 20 wiring loom to suit the 26. Also by doing this, i was able to change the dash harness to the GTR one allowing me to use the triple gauge cluster in the center of the dash.

    You will also find that things like power steering pump / reservoir tank, air con pump etc will also need to be changed if you wish to use the twin turbo setup.

    Get yourself a R33 GTR half cut. Its way easier and you wont have the headache to go with it.

    Heres a link to my engine conversion. RB26DETT Into A R32 Gts-4 Conversion

  6. Yer drop from the bottom. Its easier. All plumbing to the turbos will need to be removed so the engine can drop down in between the chassis rails. A couple of power steering lines will also need to be disconnected from the kframe.

    Starter motor top bolt needs 14mm short socket, wobbly drive and extensions. Yes they are a pain to do but you can do it with the right tools.

  7. *UPDATE* *UPDATE* *UPDATE*

    Okay cruisers, it is now confirmed that we will be stopping for lunch to have a BBQ so remember to bring your sausages and buns. For those who don't want to bring something for a BBQ, shops will be close by to grab something to eat.

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