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Rb25 In R32gtst Is There Anything I Needto Know?

col

By col,
in Engines & Forced Induction

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Ryno Experienced

Ryno

Posted
Posted
hi all iam thinking of puting a rb25 engine and box into my r32 i would like to know if there is anything i should know so i dont get stuck halfway waiting for parts thanks in advance guys

;)

You need to workout what power you are ultimately chasing... The R32 Gearbox is lighter than an R33 one, and can still handle 250 rwkw. So if your power figure is less than that, you are much better off sticking with that gearbox. When fitting an R33 one, the standard tail shaft will not fit, and will make the install a bit more difficult.

The engine drops in, no worries at all. However the biggest nightmare is the wiring. This is mainly due to the R33 battery being in the boot - so both looms have to be spliced into each other. If I could do my engine conversion all over again, I would send both looms off to a specialist to get sorted, prior to the install.

RB SANDY Rising Star

RB SANDY

Posted
Posted

I have a rb25 in a r32, the power difference is worth it and if a mate can do the loom, also you can not run the std air box because of the std rb25 piping.

(200rwkw in a r32 is a 12 sec pass) To get 200rwkw out of a rb20 there is a lot of mods to do.

col Explorer

col

Posted
  • Author
Posted

you can say that again sandy it works out alot cheaper to go for the rb25 and also its capable of alot more

so with the money i save i can go for a new turbo&ecu so its happy days for me :devil:

rb26s13 Mentor

rb26s13

Posted
Posted
I would send both looms off to a specialist to get sorted, prior to the install.

amen to that.. or i'd just buy a f*kn autronic and not even bother about factory setup.. which is were im almost at the point off.. mate is having one last go with getting it running with factory computer.. after that im just goin to go out and buy a haltech or autronic

boot_it Enthusiast

boot_it

Posted
Posted
sure thing cockhead.. im not a f**king leccy.. and i hate wiring and if you think its that f**king easy you come do it

what wiring troubles r u havin

wiring a factory ecu

rb25 into a r32

rb26 into a s13 sil

rb26 into a r32

etc

as ive done a few rb conversions with factory ecu set ups

ps do i get a free trip to carins :) if i do it for u :P

Phantom32 Experienced

Phantom32

Posted
Posted
I have a rb25 in a r32, the power difference is worth it and if a mate can do the loom, also you can not run the std air box because of the std rb25 piping.

(200rwkw in a r32 is a 12 sec pass) To get 200rwkw out of a rb20 there is a lot of mods to do.

hey, reading your post with interest. Is it proven that 200rwkw rb25 in an r32 is a 12 sec pass? Have u done it and if yes wat sort of supporting mods did u have?

And back to the point - rb25 in an r32 best to do both engine and gearbox. R32 gearbox can handle up to 250rwkw, but is not as sollid as the rb25 box. You'll notice how much better the rb25 box feels. May as well do both to avoid further costs.

Modifications required will be gearbox mounts, tailshaft and yoke. The rb25 box is longer than the rb20 so all the adjustments need to be made. Also, run the rb25 ECU with it.

Hope this helps,

cheers

RB SANDY Rising Star

RB SANDY

Posted
Posted (edited)
hey, reading your post with interest. Is it proven that 200rwkw rb25 in an r32 is a 12 sec pass? Have u done it and if yes wat sort of supporting mods did u have?

I got the info from (meggala.com) it’s in the modifying guide part 2, have a look at the website it has a lot of good skyline stuff on it. :wave:

Edited by RB SANDY
Phantom32 Experienced

Phantom32

Posted
Posted

lol

funny enough u say that - my r32 is meggala's old 32 with the 12sec SR20 in it.

He sold it to me 2 yrs back with an rb20 and since then I've dropped an rb25 into it. My goal is to run a low 12 hopefully with the stock turbo.

I'll have a look on the site anyways....lol

cheers mate

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