Jump to content
SAU Community

Recommended Posts

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

Link to comment
https://www.sau.com.au/forums/topic/202546-rb30det-into-r32/
Share on other sites

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

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.

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

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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Out of curiosity, how do you cover up the inspection hole? Surely it doesn't sit open like that, right? With grime and dirt coming in and oil going out?
    • Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • 🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
×
×
  • Create New...