pietrino

iTrader: (1)

I really don't have the money right now for the commander,
If i make an intake (just replace the filter in the stock box with an HKS or K&N), catback, and may be down pipe,
will it work??
The problem will be just that i can't change parameters??
But i will run safe or lean???
tanks

mmaragos

It will run safe with DP, intake and CB. FWIW, the commander adds a lot of functionality and provides a good deal of information, it is well worth it. Without it, you cannot change any of the parameters (unless you are an Apex tuner).

pietrino

iTrader: (1)

FWIW what mean??
So if i buy, it,s come tuned for downpipe, cat-back and air intake, i just fit and go and Power Fc will automatically increase the fuel the timing and boost??
Or it have to come programmed from the dealer?
Tank you

fluxen

fwiw is "for what it's worth", meaning "in my opinion". The PFC comes programmed richer than the stock ecu, so you can support a little more airflow. The PFC should control boost fine for you, and I believe it comes set at 12psi (anyone remember, I can't). The one question some have had is will it control creep with a MP. Some say it won't, and some say it will.

KZ1

yes, it will, you are fine, although it will run very rich until you get some more mods.

pietrino

iTrader: (1)

Why very rich??
for wich modifies is programmed??
Is better if i change also the downpipe and the midpipe?
Tanks.

KZ1

I woudl go Catback before midpipe. and I woudl go commander before midpipe. Pu it this way, I haev i/c,mp,dp, intake, etc, etc. and I have only taken fuel out. But then again I woudln;t do all that without commander.

pietrino

iTrader: (1)

orry my english is not one of the best,
You had problem with the power Fc without the commander???
whic modification you suggest to me???

KZ1

Sorry, I would buy commander right away, but if you don't want to. I think you coudl do Catback, downpipe, intake, and Intercooler. but I woudl definately get a commander if you put in midpipe. You want to be able to monitor and change settings if need be. Plus you will be able to run more boost with commander.

I hope that was clear enough.

rmefini7

So, the PowerFC out of the box, with commander or without, is safe for intake, downpipe, hi-flow cat, cat back and stock mount intercooler upgrade?

I have a commander, but I don't really want to change anything for more power, just safety, don't want to blow the engine.

I have J-spec car, with J-spec Power FC, so I hoped I was safe.

I don't mind wasting money at the gas station if it means I don't have to rebuild just yet !

Confirmation of this would definitely make me feel better.

-Richard

KZ1

yes, but you will probably have boost spikes. without commadner you can't change the boost. it comes set at 10psi. which with your mods probably result in boost spikes. You can always use needles valves, different pills, etc if you want, and that will work too.

let's put it this way. I would definately recommend the commander. for the simple fact you will know if you are safe. for a few hundred bucks it is worth it. or get the datalogging software, that allows you to make changes as well.

rmefini7

Thankfully I have seen no spikes so far. I know what they look like because it used to spike badly with stock ECU, and I drove the car at 7/10th's for over a year :-(

The boost climbs very quickly to the default value displayed by my commander, and then just 'wobbles' slightly, according to my Blitz boost gauge.

I guess the 'wobble', no more than 0.5psi is simply the solenoids compensating for too much or too little boost, sort of a hysteresis effect.

I just wondered if I needed to mess with fuel values and add more fuel, or retard ignition.

I don't intend running more than the default boost, I know I could make the car do more, but it is wild enough for me now ;-)

-Richard