Swapping Power FC Questions??

[Chaos the Xile]

I'm getting ready or consitering swapping my ECR33 Power FC L-Jetro to a D-Jetro version from a RB26DETT. My question, is the conversion over easy as far as uploading my current tune to the RB26 ver. Or does it require more fine tuning due to the fact that ECU is designed for a RB26 and not a 25? Any advanced insight would be appreciated.

[SStrunks]

sry this won't help you with your question, but im willing to take that r33 power fc off your hands if you go through with the conversion. Assuming its still working and has the commander, and if it's reasonably price.

[Chaos the Xile]

Its works I just got back from driving the car, has hand commander. e-mail me for more details on [email protected]

[Carl H]

might i ask why you are converting?just for map?you'll need a full retune map works totaly diffrently than maf.

[SStrunks]

Its works I just got back from driving the car, has hand commander. e-mail me for more details on [email protected]

Email sent

[lucky7]

might i ask why you are converting?just for map?you'll need a full retune map works totaly diffrently than maf.

dunno if the D-jetro has it, but im running map with my ems. i got a temp sensor also, because i plan on driving it in the late spring/early fall, and it can get chilly up here. just something else to think about. just assuming it doesnt have that feature right out of the box.

[gawdzilla]

i think its possible, but things you'd have to work out at a minimum are..1) basically converting your harness to an RB26 engine harness2) getting an rb26 air intake temp sensor and putting it in a spot that will be comparable to where the rb26's is. the "load" calculation for d-jetro is based on it. don't think rb25 has one3) doubling up your o2 sensor reading4) ditching VTC?

Why are you trying to ditch the maf?

[Chaos the Xile]

well if its too much trouble to convert then I'll just get a haltech

[Carl H]

out of curiousity is there ANYTHING wrong with your current setup or are you just upgrading for the hell of it?the apexi drag skyline ran a power fc and it made over 1kwhp...

[Chaos the Xile]

I'm going to overhaul. I want to keep the Power FC but I want a MAP sensor. If I could get it to idle better w/o dying off then I may keep it. I don't know yet. I have a BB T04R and a ton of internals that are going in this winter and I'll be shooting for 600+ at the wheels. And I don't want to deal with the dying after hard runs or just commuting in daily traffic. I may try a blow thru set-up now to see if that will calm it.

[Chaos the Xile]

out of curiousity is there ANYTHING wrong with your current setup or are you just upgrading for the hell of it?the apexi drag skyline ran a power fc and it made over 1kwhp...

Nothing is wrong its running hard on 25psi, makes 405wheel on 17psi. So its all good for now.

[Carl H]

recirc the bov or run blowthru...problem solved.

[Chaos the Xile]

Yeah I was thinking of doing that OR, I learned something very interesting yesterday. My Friend has a Toyota Supra Turbo and he has a T78 on there with a Ported compressor housing. He is not running a blow-off valve, but it still makes the sound between shifts. The turbo keeps up doesn't fall on it's face. Could anyone do that?

[Darius]

If he is not running a BOV on a T78 supra, the sound you are hearing between shifts is the pressure wave reflecting off of the throttle plate and coming back and hitting the compressor wheel. Not good.

I don't understand why you can't get the RB25 to idle correctly with a PFC. Have you done the initializing procedure? Do you have datalogit? If not, do both and skip the D-jetro setup. MAP and MAF systems are just two different ways to calculate and meter air quantity. Each have their pros and cons.

[Carl H]

the ported compressor shroud is designed as an antisurge device, but realisticaly you should still run a bpv of some flavour to prevent damage to the turbo.if i plunk down 1k+ for a turbo i sure as hell am not going to take any chances with it.

[URAS]

It will require a full retune as all the load points are totaly differrent, map and MAF trace totally differrent throught the maps. i have a D-jetro in my GTR

[URAS]

I'm going to overhaul. I want to keep the Power FC but I want a MAP sensor. If I could get it to idle better w/o dying off then I may keep it. I don't know yet. I have a BB T04R and a ton of internals that are going in this winter and I'll be shooting for 600+ at the wheels. And I don't want to deal with the dying after hard runs or just commuting in daily traffic. I may try a blow thru set-up now to see if that will calm it.

Honestley if i can make our other car idle with 272 12mm cams im sure yours will be fine, i would be questioning the tuners abilty... not the PFC's. Ive tuned plenty of tough RB's with big cams and there are a few tricks to gettting a good idle but it is not that hard and the MAF PFC can handle it easily.

[Chaos the Xile]

Honestley if i can make our other car idle with 272 12mm cams im sure yours will be fine, i would be questioning the tuners abilty... not the PFC's. Ive tuned plenty of tough RB's with big cams and there are a few tricks to gettting a good idle but it is not that hard and the MAF PFC can handle it easily.

Maybe so, but when I get my Greddy Intake Manifold, I'm going to convert it over to a blow thru setup see if that can remedy that issue for the time being and let that hopefully be the end of that problem.