Powerfc In Auto R34 Gtt

[Abo Bob]

The R34 GTT ECU and TCU are contained in the one unit.

I have had my transmission rebuilt and I'm told it can handle 300rwkw without needing the soft landing, ie timing drop, that the stock ECU does.

I was reading Sydneykid's thread on the SITC and thought perhaps I need a piggyback ECU that goes between the stock ECU and the coils.

Which ones do this? Unichip?

Then I had a brain wave.

What if I get a PFC and plug most of the wires into it so it can run the engine. Then run extensions to the signal wires that the TCU requires to run the auto transmission over to the stock ECU so that both the PFC and the stock ECU will be receiving input from all the sensors.

Any wires that are sending information from the stock ECU to the engine will not be connected. The wires that send information the transmsission would be connected.

What do you all think?

[mad34]

sounds like a good theory. have no idea if it will work. You have said on another thread about the emanage "you first me later" i will return the favour you first me later! hehehehe

apex should have made one to suit.

[3R1K]

emanage ultimate or wolf3d or motec

[ed]

adam, the pfc will run an auto car. The only problem is flaring on the shifts as it doesn't pull back timing for the shifts.

I can't see your theory working but I am waiting to be proved wrong.

Why can't you just wait for darkhalf's boards? hehe

Edited September 8, 2005 by ed

[predator]

I did think there shouldn't be any clear reason with enough wiring to run both ECU's simultaneously it shouldn't work??

I haven't seen any previous mention of this on here..

http://www.powertraincontrolsolutions.com/content-4.html

Any reason why?? other than the ~$1000 pricetag of course. I guess for R34 they have a slightly different version of the autos.

[Abo Bob]

adam, the pfc will run an auto car. The only problem is flaring on the shifts as it doesn't pull back timing for the shifts.

I can't see your theory working but I am waiting to be proved wrong. 

Why can't you just wait for darkhalf's boards? hehe

<{POST_SNAPBACK}>

The shifts wont flare on my car because my gears changes are too tight.

I know there is the odd R33 with PFC but don't R33's have a separate controller for the auto? What happens if I press the button on my steering wheel with a PFC and nothing else? Probably nothing cos it wont be connected to anything.

[Abo Bob]

That looks interesting Predator - I will do some reading.

[eXquiSit]

any updates on this?

[KiwiRS4T]

Why go to the trouble and expense of trying to piggyback a PFC when you could just get a Nistune chip?

[eXquiSit]

i was looking at other options to have a true 4" intake without going down to 3" for the z32, or not having to run a z32 in the cooler piping thats all

[zoomzoom]

If you can nistune your auto, go for it. I can't on my vehicle and its been a lot of work setting up another piggyback unit (albeit it comes with a few perks).

[eXquiSit]

which piggyback are you running and what perks does it have?

[zoomzoom]

Adaptronic 440. It has a lot of integrated features which can save you money, ie boost control, serial input for a wideband, programmable outputs, plus some neat adaptive tuning features, ie with a wideband it can automatically alter a fuel map (though best results are done manually). Plus theres a flex fuel functionality if you're interested in e85.

Just be mindful that you're starting from scratch with ignition and fuel maps, so the learning curve is very steep. Although there are base maps available, they arent very good. You'll need to learn how to tune yourself, even in conjunction with a tuner.

[GTSBoy]

i was looking at other options to have a true 4" intake without going down to 3" for the z32, or not having to run a z32 in the cooler piping thats all

Nistune is not limited to running Z32 AFM. You can install an R35 AFM sensor into a 1000mm drainpipe if you want and set Nistune up to run with that.

[KiwiRS4T]

John is running a piggyback because he has an S1 which cannot be Nistuned. Nistune is by far the cheapest and best option for you short of getting a manual box.

[eXquiSit]

yea a manual is out of the question

ok so who makes the aluminium flanges for r35 afm?

cant find anything on ebay

[zoomzoom]

The better question is, do you need more than a 3 inch intake? If you need more than a 3 inch intake pipe, youre probably going to be exceeding the power limits of the auto gearbox. Even a 3 inch custom metal intake should keep you happy.

[eXquiSit]

just didnt like the reducing from the turbo inlet from 4" to 3" thats all

i suppose i can always put the afm in the cooler piping or run the r35 afm as mentioned above