Rb30det Into R32

[PWND]

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

[rb30dett]

bonnet clearance is the biggest issue you will have to overcome?

[TTT]

Front Facing Plenum will make it a straight fit.

otherwise, you gotta modify the engine mounts, cut bracing shit off the bonnet, possibly lose your front strut brace.

To help you out, I'll give you $50 for your RB20.

Would make a cool door stop

[dmac_25]

To help you out, I'll give you $50 for your RB20.

Would make a cool door stop

Gee thats a bit rich 50 buck come on worth a litte more than that lol

[PWND]

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

[TTT]

actually, if I remember correctly, some people still had problems with the front of the motor touching the bonnet.

like the timing belt cover area.

search "within" the rb30det thread for a few phrases like "bonnet+touching" or something.

[dmr]

where's Cubes at y0?

[STATUS]

haha had a qik panic i thought i read rb30Et not DET. top of cambelt cover touches and if youve got carbon bonnet with vent say goodbye to most of it

[Simon-S14]

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.

[mr_rbman]

what head you got on there?

lower the engine mounts 12mm on one side and 15mm on the other, can't remember which way round, check Cubes' pdf!

[PWND]

heh, well will wing it mid next week. getting a r33 half cut just in case this doesn't work, so will have my bases covered with either rb30 or 25

[bubba]

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 January 22, 2008 by bubba

[TTT]

will wing it mid next week

Will wait for new thread

[vinnie32GTS4]

would the Rb26 head fit?? as it has the forward facing plenum..if so why not spend a lil more and get the 26 head

[PWND]

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