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Modified Sump Rwd Rb25det Into R32gts4?

WhatBrake

By WhatBrake,
in Engines & Forced Induction

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WhatBrake Collaborator

WhatBrake

Posted
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Hey guys, I have an R32 GTS4 and i recently blew my little RB20DET sky high =P oops. (shitty oil pumps i say)

I'm wanting to get a new engine back in there, but obviously don't want to waste money on another RB20.

I was thinking of putting in an RB25DET manual out of a Stagea (or convert to manual if needed), but I was thinking was IS the difference between an RB25DET RWD engine and a AWD one? really?

From wot ive gathered it the sump studs in different places, but i could always drill that out and modify so perhaps a RWD RB25DET could b bolted straight in with sump modification into my GTS4, perhaps by modifying my RB20 factory sump or? Has anyone done this or heard about it?

It's obviously cheaper n easier to source a RWD RB25DET than one out of a generally newer Stagea, that are generally autos too...

If anyone could clear this up for me conclusively I will be extremely grateful!!!! =P

RWD RB25DET into GTS4 can it be done? I will do all the work myself with a mate including the engine swap. proficient skills. doable?

Thanks in advance,

Have a sweet one guys!

Sarumatix Veteran

Sarumatix

Posted
Posted

Really I would say you have 3 options, put another RB20 out of another gts4, put an RB25 out of a stagea AWD or an R26.

Converting to rwd is rather silly as you would be pulling out all the front drive, then replacing the suspension (at least a few parts) with gts-t items. In which case you probably would have been far better off putting another stock RB20 in and selling the car and just buying a gts-t :(.

Cjmartz2k Proficient

Cjmartz2k

Posted
Posted

Wouldn't one of the adapter plates the GTR guys use to put RWD RB30's into there machines work? Probably expensive'ish, but once you are over the initial hump, you can always use cheaper RWD RB25's. Those are like $300 back on Okinawa, but I assume a bit more there. Are stagea RB25's hard to find/expensive?

WhatBrake Collaborator

WhatBrake

Posted
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Posted (edited)

Cheers guys!

The reason i ask this is because i have the tools n drill bits to easily be able to modify my RB20 AWD sump to an RB25DET RWDmaking it arguably easier to source and cheaper for me than a stagea 25. However some other kids have said u can pickup stagea RB25's cheap now, and I was assuming they'd b at least $2-3k, hence why I was thinking about modifying my sump. But apparently they're going for ~$1200 so i'l most likely go with that obviously! Still, I would like to know for general knowledge if it IS just the sump that's different between the AWD and RWD RB25's, i assume so at the moment but enlighten me if that's not the case =P

Thanks again, have a sweet weekend guys!

Edited by WhatBrake
D_Stirls Veteran

D_Stirls

Posted
Posted

you couldn't have tapped the holes in to the RWD block anyway because the 4wd blocks have a wider sump flange to fit the wider 4wd sump so you would have had to buy a 4wd adaptor. The 4wd blocks do have both sets of holes though, both 2wd and 4wd.

WhatBrake Collaborator

WhatBrake

Posted
  • Author
Posted (edited)
you couldn't have tapped the holes in to the RWD block anyway because the 4wd blocks have a wider sump flange to fit the wider 4wd sump so you would have had to buy a 4wd adaptor. The 4wd blocks do have both sets of holes though, both 2wd and 4wd.

TRUE. I was wondering this, my mate said he knew the AWD had both sets of holes. But i wasn't sure if they did the same on the RWD's. Yeah so it looks like I'l need an adapter, which is what I was asking. Do u know how much an adapter would set me back? obviously if it starts adding up it may negate it being the cheaper/easier option. Still undecided depending on a few things, but stagea 25 prob b the go. Ive heard the neo can b anal with trans control or something? non-neo stagea RB25DET straight in. N could i bolt my RB20 sump onto that RB25 neo, or would this just be a waste of time?

Cheers guys.

Edited by WhatBrake
WhatBrake Collaborator

WhatBrake

Posted
  • Author
Posted (edited)
just by that c34 engine off ebay. you can't go wrong for $1150

I just despise buying stuff like that off Ebay...Oh I see it's jdm performance. Good call. I'm assuming things - private seller.

Thanks! :P

Edited by WhatBrake
bubba Grand Master

bubba

Posted
Posted

Did you use a 34GTT ecu?

The adapter plates are close to $1000 with a new pickup (I thought about mentioning this in the other thread but the costs aren't worth it unless going 3L.. rwd 25 + adapter > stag 25).

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