Jump to content
SAU Community

Rb30 Or Rb25

R32Abuser
 Share

Recommended Posts

R32Abuser Mentor

R32Abuser

Posted
Posted

Hey,

Just curious, am curious about putting a RB30 or RB25 DET's in my R32 Gts-T and are wondering about the upsides and downsides of either.

I will not ( i think) be rebuilding either but possible changing the turbo from stock and possibly a few other mods. Which of the two is a better choice financially, and mechanically? Whats involved mainly with the changeovers anything too difficult/costly?

Which one is easier to tune, and what could any of you recommend to run i.e. aftermarket computer etc....

Any thoughts appreciated.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/123821-rb30-or-rb25/
Share on other sites
someonestolecc Grand Master

someonestolecc

Posted
Posted

If it's a choice of RB25DET vs RB30E(T?) I'd say go the DOHC rb25det.

If you're asking for RB25/30DET vs RB25DET then I'd say go the former if you're rebuilding, go the latter if you're not.

Reason being is if you're not rebuilding it then I'd say inherently anything closer to stock is going to be more reliable. Obviously this won't always apply but the theory is there. Plus you'll have less complications as if you're not rebuilding it then you can just pickup a wrecked rb25 rather than building a rb25/30.

If you're going to freshen anything up (which I would if I had 2 halves of an engine apart) then go the 25/30.

There's a large thread on it on here so search that.

Link to comment
https://www.sau.com.au/forums/topic/123821-rb30-or-rb25/#findComment-2288105
Share on other sites
Bunta Grand Master

Bunta

Posted
Posted

I would pick up a RB25 then do the exhaust intercooler and computer upgrades...building a 25/30 will be more expensive and the plain RB30ET is no match for the RB25DET

My R32 has an RB25DET with Power FC, Boost Controller, Front mount and turbo back exhaust and it is a seriously fun drive you wont be dissapointed :D

Link to comment
https://www.sau.com.au/forums/topic/123821-rb30-or-rb25/#findComment-2288498
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

    • Marek
      Hi everyone.

      By Marek · Posted

      Haha, i kow right? Could have bought so many cars for the same amount of money (or less) but driving Unicorn gives you at least +1mln to style 😅. Like wise man said "life's to short to drink cheap wine and drive boring cars" 😉
    • ARB26
      S1 Autech 260RS Wiring Diagrams

      By ARB26 · Posted

      Newbie here, proud owner of an Autech 260RS. I'm on the hunt for wiring diagrams specific to the 260RS, particularly S1. I've ran my eyes through R33, R34 Diagrams, there are some similarities, however continue to find incorrect wire colours and pins on connectors in the 33,34 diagrams.   I was hoping someone could point me in the right direction? I'd be happy to pay for the originals in Japanese. I can translate them, at least they would be accurate.   Any help please would be greatly appreciated, never heard an RB26DETT before let alone driven one, and I've got a spaghetti monster of goodness to sort out.   Cheers Benny  
    • DanMac34
      R34 Speedo not working after manual swap

      By DanMac34 · Posted

      Hey all  im wondering if you can help me please I have put a rb20 box in my r34 gtt as my auto packed up and a friend had a spare box I know it’s not ideal but it will get me up and running for now. we have done the conversation and everything is working great but my Speedo we got a s13 speed sensor but my Speedo reads double now and I bought a speed converter but still not having any luck.  so I thought I’ll reach out and pick your brains  any help would be appreciated please as I wanna drive my car again 
    • joshuaho96
      Speed Sensor replacement

      By joshuaho96 · Posted

      Drain it. I got official Matic D but you can get whatever is listed as Matic D compatible.
    • QB6SAGR
      Tein Circuit Master- rebuild worth it?

      By QB6SAGR · Posted

      Thanks guys,  Yeah I should at least have them dynoed, at least then I know what I've got as a starting point.  The springs on these are hard as rocks. I vaguely remember Russman saying he was going to sell the shocks to me with the rocks fitted, as he was keeping the softer springs for his new setup.  I didn't click at the time but of course that was to let me know the shock/spring wouldn't be matched.  I also remember pricing up new springs around 2014-15, but, house, money etc. it never happened. So that was another reason to have them rebuilt. I have rebuilt the forks on many motorcycles so I think I could handle the seals on these easily enough, but getting the valving right would be a rabbit hole I cbf exploring.  Duncan, interesting to hear RP was tuning these back then. I might give them a call.  In the mean time I have been busy fitting sway bars. The Whiteline rear sway bar I purchased 15 years ago finally got fitted, along with the Whiteline front bar that showed up last week. Just waiting on new links for the front sway bar to finish that off.  And my spare set of advan AVS VS5's should be back from the powder coaters in a Pearl White finish sometime this week, with a set of Hankook RS4's lined up for fitting.  And then I just have all the suspension bushes to do. A comprehensive kit is on the way... Lots to do before the Ararat hill climb. Cheers guys 🍻   
×
×
  • Create New...