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Hi Everyone

I am from West Pennant Hills in NSW.

Been too busy until recently to attend to my RB25DET Series 2 engine until recently.

I am planning to stick it into the S15 shell at this stage, unless a nice SR20DET turns up...

For now, i am going to try and get the RB25 running and working well then decide what gearbox to use.

My preference is to retain the SR20DET  6 speed gearbox and tail shaft to retain as much and least modifications as i can avoid.

I am an old guy and won't be doing any heavy drifting so i don't need a bullet proof gearbox

Does anyone have experience with starting the RB on a stand?

I got everything setup as much as I can with the info i can find... endless searching and videos on Youtube

I would be great to get some pointers

Cheers

Songo

RB on a stand.jpg

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Starting on a stand is no issue. You just have to wire everything up, give it fuel and cross your fingers that the stand is robust enough. Arranging the inlet plumbing is often the hardest part, without any surrounding structure to hang some of it from.

No need for coolant if you only want to run it for <1 minute.

As to the gearbox - I think the little Aisin box is a bit stronger than the other small Nissan boxes that went behind SRs, but I wouldn't be too keen to test its limits with the torque of a boosted 25. I don't know if you can retain the box and the tailshaft. The box won't connect to the RB without an adapter of some sort, which is either a plate that will push the engine forward (which is not good for fitting it into the bay's available space) or push the box back, which messes with the box position and tailshaft length - OR - cut and shut work on the bellhousing, which is a long way from "least modification".

I'd be buying a new 370Z 6 speed or similar, doing what has to be done to that to make it fit RB (ie, cut and shut bellhousing) and the requisite tailshaft custom/mods.

thanks GTSboy. My confusion at the moment is i am trying to locate the ignition, ECU battery power and the ECU negative

The closest thing i can find is the for the S15 on Page 8 of the Wiring Specialties web page

https://drive.google.com/file/d/0B9F33_M_GgENQnZ6STMxVmVNd1E/view?resourcekey=0-eZ4nNRwRoqa1qvKlWWHm8A

I cannot find the same diagram for the R33 RB25DET Series 2 dash plug pin out....

Do you know what the Pins? or know where i can find the same pinout diagram for the RB dash plug?

Thanks for the advice on the box... i like a 6 speed so might be on the lookout or the box now.. a topic of discussion for another post...

Edited by Songo

Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms.

I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis.

If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it :) 

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