26/30 Into Hcr32 With Ap Pfc

[Gts-t]

Im pretty sure this is possible but would like to double check. I think u would use whatever pfc suits the loom/sensors u are using but u never know, it might be more like u use the pfc that suits the loom/sensors AND/OR the head/inlet.

I plan to run a rb26/30 in my hcr 32 with a AP Pfc pro for the ecu. Also want to retain the 6 throttles and run a gt3040 turbo for about 500hp or whatever it makes on 1 bar.

To keep things as simple/cheap as possible i want to retain as many rb20 parts as i can for the head and inlet manifolds. Things such as the coils, tps, injectors, cas etc. This will also keep the cost of the head inlet down if i dont buy it with the extra stuff i perhaps dont need.

So basically can i use the stock loom sensors etc on the rb26 head/inlet thus being able to retain my rb20 pfc/550cc nismo inj etc??

thanks guys

Edited August 13, 2007 by 2630GTS

[Adriano]

Yep, all will be fine, just dont know how you are going ot hook up the idle control, you could always run a single throttle on the rb26 head.

Edited August 13, 2007 by Adriano

[Gts-t]

Not keen on that at all

[Adriano]

There is a good chance you will be able to hook up the rb20 idle control motor to bypass the 6 throttle bodies, however in the long run it may be cheaper to use a Q45 throttle with aftermarket plenum if you dont already have the manifold.

[Gts-t]

where is this idle control motor?

i will not accept less than a stock gtr inlet and the 6 throttles

cheers

[Gts-t]

Finally found it 36 pages into the RB30 thread lol

from sk...

Hi guys, whilst GTR- Ben is almost right, it is actually the sensors you use on the engine that determine which ECU and loom you use. As an example we have an RB31DET (RB30 at 3.1 litres with an RB26DETT head) that uses an RB20DET Power FC and the original R32 GST loom . What I have done is use all of the sensors off the old RB20DET on the RB31DET. I swapped over the water temp sensors, knock sensors, throttle position sensor, CAS, boost sensor, oil pressure sensor, AFM (we used a Q45 AFM) etc. Plus I used the 565 cc injectors that were in the RB20DET, which were top feed and high impedance to match the Power FC.

I did it this way, rather than use an RB26DETT ECU and loom, because I already had an RB20DET loom and Power FC in the car. So it seemed simpler to swap the sensors and injectors over while both engines were out of the car. Plus I am not very good with looms, I never seem to be able to get them to fit back in the way they should.

If I had an R33GTST I would have done what GTR-BEN suggested and used all the original stuff with the RB30 bottom end.

Hope all that makes sense.