Edit Review

[xrturb]

like I said earlier the first thing I notice was the constant pull as to the pulsing of the car when stock

[jordak]

Thank chr*st, some intelligent questions and informative answers

Martin, tell me all this talk about A/F fluctuations, do they only effect the smoothness / efficiency of power delivery or can it have a more sinister effect?

Also are you saying that with just CAI and removed centre muffler the 8psi map will be a better drive and if so wont I miss that luvely little rush of speed around 4,500rpm that the 10psi map provides?

Steve

Edited 22/12/04 12:48 PM by jordak

[DBOSS]

Good report thanks Mal Also good to get your reply's Tuner

[Street Tuner]

No, the AF fluctations you witnessed are perfect, and part of the learning curve for the system. Unlike a piggyback that comes off the dyno with perfect AF ratios and turns to crap in a week, the tuned PCM adapts constantly to a perfect aim ratio....just like the factories do, and stays there pretty much forever

[jordak]

  Street Tuner said:

No, the AF fluctations you witnessed are perfect, and part of the learning curve for the system. Unlike a piggyback that comes off the dyno with perfect AF ratios and turns to crap in a week, the tuned PCM adapts constantly to a perfect aim ratio....just like the factories do, and stays there pretty much forever

<{POST_SNAPBACK}>

Cheers.........I just edited my post with another question !

[macka'sxr6t]

Good question & answers guy's,

Keep the brain juices flowing so we can all learn.

Sounds like exiting times ahead.

I have one question for Tuner if he would like to answer.

How soon before he tunes a car with similar mods to mine or APS phase 3 eg Larger injectors larger, intercooler, cold air intake mods, exhaust?

Cannot wait to see them results.

macka

[DBOSS]

  macka said:

Good question & answers guy's,

Keep the brain juices flowing so we can all learn.

Sounds like exiting times ahead.

I have one question for Tuner if he would like to answer.

How soon before he tunes a car with similar mods to mine or APS phase 3 eg Larger injectors larger, intercooler, cold air intake mods, exhaust?

Cannot wait to see them results. 

macka

<{POST_SNAPBACK}>

That would be good to hear about

[fordboy1981]

sheet, there's quite a few people reading this!

So the AFs won't be perfect when you first flash the PCM, but as time goes on it will learn and correct the AFs??

wasn't the cam timing changed too, so wouldn't this affect (for the better) it's off boost response??

I was under the impression that the 8psi tune was set very rich, why was this done??

The 10psi tune was meant to have all it's safety limits move out of harms way, does this mean that with the addition of a big exhaust (including cat) and intercooler the computer will "learn" to cope and stay at 10psi with good AFs??

Dave.

[Mals BA XR6T]

Thanks Street Tuner. I appreciate your comments.

Also, I thought that the timing/cams control was changed, and this should have produced more bottom end? (After 2 years with the Turbo, I still miss the bottom end pull of my old AU 5ltr)

On the topic of Traction Control, can someone shed some light on what I have experienced. This never happened in stock form.

It feels like Traction Control has changed?? It doesn't seem to work as good? I don't know if this is just the extra power now pushing it beyond it's limits or not?

Talking about things that have changed; Is there a list of changes that the 8 PSI tune has made to the standard program eg Timing?

Thanks again

Mal

[Eugene]

QUOTE

3. The gear changes are NOT firmer, IMO they are the same (excluding point 3 of THE GOOD of course)

Commanded line pressure is at maximum for the force motor in your gearbox. The shifts might not feel any firmer because we stop the throttle from closing down the power on gearchange. If the throttle was allowed to shut (like stock) the shift would chirp the wheels.

Could you please explain this further,

If I read this correctly your saying if the throttle was closed like the factory tune does, the tyres will chirp, how can making less power (throttle closed) make the tyres chirp on a gear ghange, something I thought would require more power.

I am not sure how the boxes work but it sound arse about to me, but I am happy to be corrected.