What Model Powerfc To Buy

[Godzillr]

I am looking to buy an aftermarket ECU for my R32 GTR. I am running twin HKS 2530's, highflow injectors (not sure which ones), standard AFM's, and not sure what fuel pump. I am leaning towards a PowerFC D-Jetro as it eliminates the need for AFM but I have read that these are harder to tune and are better suited to cars that are generating very high power outputs.

The obvious alternative is a standard PowerFC with higher volume AFM (GCZ32 or Infinity Q45's). I have read on the forums that you can replace the standard AFM with a single Infinity Q45 AFM wired up so that the PowerFC sees two AFM's.

The price is going to be very similar either way so basically I am after the option that gives better all round driving package (including idling). Has anyone had experience either way? What are your thoughts?

Cheers

Nick

[Amaru]

If you go the D-Jetro route you will have difficulty finding someone to tune it as its alot more labour intensive to do the mappings. Its also alot harder to get the idle and deceleration parts right.

Just get a standard one and run Z32 or RB20/25 AFM's.

[datto260Z]

Well heres a bargain for you if you choose to get Z32 AFM, ill sell mine with plug for $160. Halfway there. And yeh, unless you want to go to Sydney or beyond, then get a normal PFC. You will still get a massive improvment. I got about 100rwkw gain from a RB25DET and Pete at Autotech can tune them.

[Godzillr]

Thanks Amaru.

That is basically what I have read and if there isn't anyone in Canberra that can tune it well then it makes the decision easy.

[widebody32]

I have used both systems and they both have good and bad points.

If you want great driveability then go the a/f meter type as with the six throttles on a djetro style it is not so much the idle that plays up but more so the map at about 3000 as it uses the same load point at about 3000 at say 2in hg as it does at say 3000 and just coming on boost and so causes a stumble at certain throttle positions.

But if you are after the most power and can put up with this then it will make more power with the djetro.

As for tuning it is about the same to tune a djetro as it is a standard one and only cost me $50 more to have mine tuned but you will have to go to Sydney to get the best results

[Godzillr]

Thanks widebody. I am leaning towards the standard PFC because drivability to me is more important than getting a few extra kw's.

[widebody32]

Yeah i think the afm style power fc is a lot nicer to drive with and you'll get better fuel economy too.

[datto260Z]

Cheers Nick, the camera I used from your money was probably the best bargain I have gotten before.