Power FC Question

[Dynamix]

This may be a stupid question, but its better to be safe than sorry.

My R33 GTS-t has a neo6 RB25DET out of an 1999 R34 GTT, will i need a neo6 RB25DET Power Fc or will a normal r33 gts-t Power Fc work?

Cheers

[RedBaron]

As far as i have read, i believe you will need an R34 GTT PFC. The R33 will not work.

Good luck.

[Steg33]

Hey dynamix, you'll need to clarify this further but i'm pretty sure you'll be able to use the standard RB25DET one because the main differences aren't going to be with the motor, they'll be to do with traction control etc. There shouldn't be a real lot of difference with the two motors and tuning of them so the standard power FC should run on that motor. Also if you're runing the standard loom then the standard PFC will plug straight in.

[Dynamix]

Well, I want to get it right otherwise I'll be paying $1100 for a computer for my car that wont work.

[paulr33]

i'd say youd need an r34 power fc, but thats just my opinion. the neo6 has different timinig or something added over than standard rb25det which says to me u need a specific r34 powerfc, otherwise you could simply use an r33 stock ecu, which woudn't work im assuming, ask your local performance shop or ask who ever did the engine swap if you can contact them

[The Mafia]

its about the wiring loom actually.

I'd assume when they transplanted the engine, then also did the wiring loom to match it, unless the Neo6 has the same wiring as a R33 motor.

Be careful dude.

If you have a R34 ECU, then a PowerFC for a R34.

If you have a R33 ECU (which I don't think would work with a Neo6 cause they are slightly different) then get a R33 power FC.

[LBR33]

See if somone has a stock 33 ecu you can try with your car so you will know if a r33 powerfc will work in your car.

[dojobi]

afaik, the Neo engine has continuously variable valve timing, whereas the the R33 engine just has stepped adjustment. That would mean the R34 PFC would be the only way to go as the R33 PFC wouldn't know how to handle it.

You'd better check it up with a tuner though - I wouldn't want you to go and buy something based on what I said.

[funkymonkey]

i've got the ROM reprogrammer for the NEC controller chip in the power FC. If you've already got a power FC I might be able to reflash it to the right one (will need to borrow a neo one too to get the dump of the software), and it should work, providing the ECU pinouts are still the same, and the only diff between the NEO PFC and the non NEO PFC is just the software on the PFC.

Or you could just buy a neo PFC and sell your current one