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Rb30det Into R32

PWND

By PWND,
in Engines & Forced Induction

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PWND Grand Master

PWND

Posted
Posted

Just a quick question.

I have just gotten my hands on a rb30det (loom, ecu, turbo all there), with rb25 gearbox, and was planning on stuffing these into my r32 manual gtst. Having basically very little knowledge, and no experience in doing this conversion, I was wondering whether there are any issues with this proposed conversion, or does the engine fit straight in, like a rb25 would?

I am planning on ripping out the rb20det and gearbox out myself, respraying my engine bay and then towing the car to the shop that is going to do the conversion. but to save on time, and any potential hassles, was wondering whether i would need to provide any additional bits and pieces for this. I have purchased some new engine mounts, but apart from that, i can't think of anything else that they might need.

Any help on this would be appreciated, as the car will probably be going in on either monday or tuesday.

Cheers

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PWND Grand Master

PWND

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Posted

well that's good news. what about all the mounting and bracing underneath? all lines up fine? already got a front facing plenum on it, so should hopefully have no worries. will have to see about the high mount turbo though. might need a new manifold for it

Simon-S14 Grand Master

Simon-S14

Posted
Posted

the solution is to modify the Rb20 engine mounts (metal brackets) and cut them down some 20 mm then reweld them up, this will lower the engine to a more desirable height, however the sway bar will foul and the sump will be lower then the crossmember, so spacve the bar down and fit a bashplate and these issues are then nothing to worry about.

bubba Grand Master

bubba

Posted
Posted (edited)

I had to remove my strut brace, have a stock 25DE plenum on there and it rubs slightly on the front corner and also slightly on the timing belt cover.. I spaced the back of the bonnet up 10mm so it doesnt try to buckle the bonnet every time I shut it..

Forward facing plenum will go on with the new turbo, all measurements for the GT35R high mount appear that it will clear as it will sit just below the crossover pipe. Will likely "massage" the timing belt cover slightly, don't need to gain much.. 5mm maybe.

Does the 30 have all the ancillaries bolted on? if not you'll need to modify the power steering pump bracket (cut the top boss flush with the lower two), other than that I don't remember anything else that needed modifying (apart from shuffling all the pipework so the bonnet would close!).

Edited by bubba
PWND Grand Master

PWND

Posted
  • Author
Posted

RB30 did not end up fitting. Mainly due to the design of the front facing plenum on the thing. Stuck up by a couple of centimetres. Could have had another plenum fabricated, but that and the retune would have put my budget out by a fair bit. So rb25 it was. Car will be back on the road on monday at the latest. Trying to source a bloody pfc at the moment that is reasonably priced is proving impossible as well.

also, if somebody in the brisbane area has a r32 2way they are willing to sell, pm me :P

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