col Posted July 17, 2006 Share Posted July 17, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/ Share on other sites More sharing options...
Ryno Posted July 17, 2006 Share Posted July 17, 2006 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. Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2336197 Share on other sites More sharing options...
col Posted July 18, 2006 Author Share Posted July 18, 2006 thanks for the reply mate the loom is going to be done by mate so that is the easy bit.what would be needed to run the rb25 mate? Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2339276 Share on other sites More sharing options...
predator Posted July 18, 2006 Share Posted July 18, 2006 go search the tutorials area. Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2339311 Share on other sites More sharing options...
RB SANDY Posted July 19, 2006 Share Posted July 19, 2006 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. Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2339406 Share on other sites More sharing options...
col Posted July 19, 2006 Author Share Posted July 19, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2342402 Share on other sites More sharing options...
rb26s13 Posted July 19, 2006 Share Posted July 19, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2342437 Share on other sites More sharing options...
DOUGMO Posted July 19, 2006 Share Posted July 19, 2006 if you use an after market ecu can you just use most of the rb20 loom and sensors? Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2342513 Share on other sites More sharing options...
predator Posted July 19, 2006 Share Posted July 19, 2006 for f**ksakes wiring the factory computer is piss easy.. its not rocket science. Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2342536 Share on other sites More sharing options...
rb26s13 Posted July 19, 2006 Share Posted July 19, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2342555 Share on other sites More sharing options...
boot_it Posted July 23, 2006 Share Posted July 23, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2349980 Share on other sites More sharing options...
Phantom32 Posted July 24, 2006 Share Posted July 24, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2351940 Share on other sites More sharing options...
RB SANDY Posted July 24, 2006 Share Posted July 24, 2006 (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. Edited July 24, 2006 by RB SANDY Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2352884 Share on other sites More sharing options...
Phantom32 Posted July 25, 2006 Share Posted July 25, 2006 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 Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2355607 Share on other sites More sharing options...
RB SANDY Posted July 25, 2006 Share Posted July 25, 2006 (edited) It's always a small world if you get a good take off you will do the 12. Edited July 25, 2006 by RB SANDY Link to comment https://www.sau.com.au/forums/topic/126551-rb25-in-r32gtst-is-there-anything-i-needto-know/#findComment-2356187 Share on other sites More sharing options...
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