Jump to content
SAU Community

Rb25 Turbo

BillyMako

By BillyMako,
in Engines & Forced Induction

 Share

Recommended Posts

Cubes Grand Master

Cubes

Posted
Posted (edited)

Its a late model vg30det by the looks of the comp wheel and the position of the nipple on the comp cover.

On the turbine housing there should also be an OP6 stamped some where.

On the RB25's good for a fairly easy 200rwkw at 12psi.

The turbo doesn't suit the rb20det's too well due to its larger turbine housing yet smaller comp wheel than a r33 rb25 turbo.

The 45V1/2/3/4 comp covers are all the same. They are placed on the R33/R32/VG30DET turbo's. The numbers are not really related to what turbo it is, to determine where the turbo is from you have to look at the comp wheel size/design and turbine housing size.

Edited by Cubes
Link to comment
https://www.sau.com.au/forums/topic/86574-rb25-turbo/#findComment-1565806
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kapr
      "Cheap" bolt on turbo on RB25DET NEO

      By Kapr · Posted

      Ok guys thank you very much. GCG highflow it is then 🙂 
    • JC71
      98 R34GTT 4k engine stumble

      By JC71 · Posted

      forgot to mention that when it does this it does not kill the engine, but I have not kept the pedal down long enough to let it, as I see no reason to beat up on it as its got to be something simple, small and dumb causing this.  And as soon as I let off pedal, the engine returns to its normal super smooth operation and rpms re-stabilize quickly, once below 4k. 
    • JC71
      98 R34GTT 4k engine stumble

      By JC71 · Posted

      neither stumble or cut really seem to be an appropriate term....hard to explain its like a rev limiter but at 4k, but it violently shakes engine and entire vehicle as the rpms will not rise over 4k, even with slow acceleration. as soon as it hits 4k, it sounds like entire spark is lost entirely. plugs were 1.1 which I used as such, but later put in new plugs gapped down to .8 changed back after issue arose when I replaced the coils, still does it with either plug gap...damn and it was all running so good.
    • TurboTapin
      Why am I hitting a power wall with my stroked RB25?

      By TurboTapin · Posted

      Oh how times have changed! I actually lean it out relative to my water/methanol injector duty cycle. The methanol adds a lot of fueling and you can then lean it out even more due to reduced knock. 
    • Dose Pipe Sutututu
      Why am I hitting a power wall with my stroked RB25?

      By Dose Pipe Sutututu · Posted

      Yeah my thoughts are the same, a well thought out WMI setup, would be slightly ahead of just straight E85 and you're also chemically intercooling the charged air, dropping it even further. This is why you need to add so much more fuel as soon as you spray. I remember someone taking me through their set up before (Dennis, has a R33, lives around Cabramatta - no idea if he's still around on this forum). He would target AFR 10:1 on 98, then as WMI ramped on, AFR would lean back up to 11:1. Amazingly, he did this all through his PowerFC, a relay to cut power to his EBC solenoid if there was not enough line pressure on his WMI kit. And of course, if there wasn't any boost made above gate pressure, you wouldn't be accessing the load cells with heaps of timing for WMI. One downside to that rudimentary setup, once the WMI came on, the EBC would unleash the dragon, and of course all the timing. Tyres would fry lol.
×
×
  • Create New...