Jump to content
SAU Community

Recommended Posts

Hi,

Have searched but cant find any firm advice on using the rb25det head on rb30 block, has anyone using this head left the water gallery that doesnt seal by much as standard and had it seal with no problems?

Also is it necessary to feed oil to the front cam journal if i DONT want to run VCT?

Any one got any pics of a head with external oil feed?

Cheers

Link to comment
https://www.sau.com.au/forums/topic/219982-help-using-rb25det-head-on-rb30/
Share on other sites

I havent heard of anyone not welding up the water gallery to provide a larger surface area for it to seal on. It would probably work without building it up, but its just a peice of mind thing knowing it has more area to seal on.

There should be heaps of pics floating around from this being brought up before. For the external oil feed that is.

On our current head we dont have any external oil feed and we dont run vct :)

Hi,

Have searched but cant find any firm advice on using the rb25det head on rb30 block, has anyone using this head left the water gallery that doesnt seal by much as standard and had it seal with no problems?

Also is it necessary to feed oil to the front cam journal if i DONT want to run VCT?

Any one got any pics of a head with external oil feed?

Cheers

There's a whole damn thread on this and a full guide on everything needed. Use the search function.

It's in Forced Induction Guides at the top.

Guest
This topic is now closed to further replies.


  • Similar Content

  • Latest Posts

    • 9" wheels are a little too wide for a RWD 32. They can fit. People have put R33 GTR wheels on 32s for years and years. But they are a very tight squeeze. This has been known for about 30 years. As I said - there is no difference between a 17 and an 18 in terms of what will fit. The rolling diameter needs to stay about the same as stock - not very much larger. If you increase that, you will start to have problems. If you increae rolling diamater at the same time as yo increase width, you will have problems earlier. as 9" wheels are pushing the boundaries already, you would need to be careful with tyre choice. I would put 8.5s on the front of mine, but would expect problems with 9s.
    • post up screen shots of your injector tables
    • Diagnostic flow for a code 21 says check signal at the ECU pins, on a voltmeter of some kind it should read 0.1V at idle, 0.12V cranking, 0.15-0.25V at 2000 rpm. Check each coil such that +1, -3 is infinite or very high resistance, -3, +2 should do the same. (-1, +3), (+3, -2), (+1, -2), and (-1, +2) should all be somewhere between 0 ohms and high resistance. If you trace the path from the coil pin all the way back to the ECU in the diagram the resistance you measure at the coil vs connected to the harness should be pretty much the same. 
    • I have an elite 2500 running an adapter harness on an rb25de neo r34. I took the butterfly out and removed all that junk. But I also went Plus+t at the same time. The butterfly thing works in reverse to the boost solenoid on the Gtt if that makes sense
    • yeh they are 235/45/17 up front and 255/40/17 in the rears. I still didn't get my answer if i can fit a 18x9 up front. I want to get 4 of this and see if they will fit before committing as they didn't see an 18x8 as an option but there is a 18x9.5 also.   Enkei RS05-RR 18x9 35mm ET 5x114.3 75.0 Bore Matte Gunmetal Wheel
×
×
  • Create New...