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Rb30 Or Rb25

R32Abuser
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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

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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.

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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

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