POWER FC for RB25DE ?

[drunkenmaster]

Does one exist?

If so, does it vary between R32, R33 and R34?

Thanks

[Driver]

Im not sure

but why would you want one..

[drunkenmaster]

becuase i have a RB25DE head and loom on a 3.0 block which i plan to turbocharge, obvisouly needs new engine management and I also want a stock appearance that the power FC will give.

[Driver]

im not sure they make them for N/A cars

[Bl4cK32]

buy an rb20 loom and use that one instead...then use the rb20det PFC

[drunkenmaster]

If thats the case, could you use an RB25DET loom and use an RB25DET power fc?

I assume there are pro's and cons to do with sensors etc?

[666DAN]

Yeah just buy the FC that suits the loom you use..easy!

[Bl4cK32]

Depending on what head you plan on using...since you are using the rb25de head, you have no vvt. So the best option would be to use the rb20det loom as it has no vvt as well, and the rb20det Power FC...make sense?

[Roy]

Depending on what head you plan on using...since you are using the rb25de head, you have no vvt. So the best option would be to use the rb20det loom as it has no vvt as well, and the rb20det Power FC...make sense?

I think the best place to start is what car do you currently have? Then work from there.

My preference would be to use an RB25DET PFc if you can. You dont need to have it running the vvt, and it is $400 cheaper.

[drunkenmaster]

Do all years of RB25DET have variable valve timing?

The project car the motor is for is a 260Z, so that is neither here nor there but it does allow me to have free range of what skyline parts to use.

Are all the sensors common between the RB25DE and the RB20DET i.e. will the loom plug into everything or will some chopping and changing need to be done.

Will this affect injector style?

[Bl4cK32]

R32 came out with the two engines =Rb20det, Rb25de....

I assumed you were putting it in a different type of car other than a skyline....

saying that the sensors might not be the same between the rb25det and rb20/25de...not so sure if they are compaitble, which may mean getting all 25det sensors...added cost

I got my Power FC and HC for $1600 brand new...not too expensive. They do come up now and again, and arnt hard to get hold of.

[drunkenmaster]

OK, so you are using the AP RB20DET PFC on your hybrid motor?

I see what you are saying now, be easier to stick in the same generation of skyline, i.e. R32, but are those sensors all the same?

[Bl4cK32]

yup Ap Engineering version on the RB31DET.

Ive got a mate Using a RB25de (with 26 internals) and he is using the rb20det loom, using the 25de knock and oil pressure sensors. The only difference in the two is the AAC valve i think...check the difference between the two engine sensors (ie rb20 to 25de) to see if there any different. I did and only came up with the AAC valve being different between the two models....and use a rb20 afm

edit/ the rb25de and rb20det use the same injectors - top feed red tops...same cc as well i think....

[drunkenmaster]

nice thanks,

there are a couple of AP PFC's 2nd hand at the moment in the for sale forums, what are they worth new and second hand, regular PFC's are quite cheap these days.

[Bl4cK32]

well email nengun for the new price, and take off a couple of hundered for the 2nd hand items....

[Hell_Bound]

I'm building a 3ltr twincam turbo engine (using R32 head, non-vct) at the moment, would it be better to use the rb25de loom and attached sensors and use an AP engineering power fc for when its turbo'd? or change the loom and computer to rb20det and remap?

[Cubes]

I'm also using an AP PowerFC & H/C for the RB30DET that I picked up for $1100 delivered, 1 year old.

With your setup you will need the RB20DET loom and an AP Engineering PowerFC.

The injectors and sensors between the R32 RB25DE & R32 RB20DET are the same.

If you went with the R33's VCT head obviously the use of a R33 RB25DET loom and RB25DET powerfc would be required.

I'm unsure if the R32 RB25DE loom has the extra's such as MAP sensor & knock sensor wires running back to the ecu. I would have to check the wiring diag in the engine manual. Either way its not hard to run a couple of wires you are missing back to the ecu.

[Hell_Bound]

Ok cool, thankx. soory to be a pain but would it be too much trouble to check the wiring diagram?? just trying to get out of changing over to the rb20det loom, could i use the 25de loom with the addition of an aftermarket boost controller? thanks again mate, help is much appreciated.

[Cubes]

I wouldn't worry too much about the N/A and turbo loom differences.

Wires can always been ran back to the ecu. All you need is the pinout.

If you want the r32/r33 engine manual let me know. It contains the wiring diags.

I decided to throw a few x 3 Jonnie Walker cans back tonight (with family) so I'm kind of tanked. No good me looking at a wiring diagram.

[Hell_Bound]

hehe sounds good. Mate would it be alot of trouble of for you to e-mail me the engine wiring diagrams? so u rekon i could use the 25de loom and use a boost controller for the turbo, along with the programmable FC to suit an rb20det? harrr what a mouth ful!again, many thanks for the help...