DCAWD.com

Gentlemen,

#1
I have an AP v1 and my STi has been flashed to Stage 2 (with supporting mods) since Thanksgiving. I have a few questions.

I just downloaded the newest version of AccessPORT Map Manager and the newest incarnations of:
• Stock Mode-Base Map
• Stage 2 93-Real Time Map
• Economy Mode-Real Time Map

I now have my BASE MAP as the Cobb Stage 2 93 Octane map on my car, nothing else.

Would it be safer to run the "Stock Mode" Cobb map as my BASE map and run the Stage 2 93 oct as my REALTIME map? Or...is leaving it the way I have it okay?

#2
I have downloaded RomRaider and plan on doing some logging just for the hell of it. I've done quite a bit of research and it seems that I CAN use my AP v1 cable with a good quality serial-usb converter to log w/ RomRaider/Enginuity. Do you agree? (I just bought a netbook, so I'm kind of excited to put it to use)

#3
Would there be any moderate performance benefit (as opposed to my off the shelf Cobb Stg. 2) in getting one of the $150 PDX Tuning maps at my current Stage 2 state. (where you tell them the mods on your car and they send you a map). I don't want to do a full out protune yet.


(Edited to be less confusing)

TYIA
-Will

I have not played with AP like others have, Mr. Kleen?
Your new logging ability will give you a good look into the parameters of your engine. Post up your results and we can all take a look and learn/comment.
If absolute values are being sought by the EM, I don't see a problem with running a v2 ECU flash with a V2 AP map. But then again others with experience should chime in.

I will certainly post my findings.

zaxrex wrote:If absolute values are being sought by the EM, I don't see a problem with running a v2 ECU flash with a V2 AP map. But then again others with experience should chime in.

I'm confused. A V2 Map?

A few things come to mind:

What mods are on the car? TBE? TBE + Intake? BOV? Etc....

Yes, you should be able to log with the APv1 cable. You won't be able to read/write with it, but you should be able to log with it. Keep in mind that a large chunk of the logging will not be useful without a separate wideband O2 sensor and related cabling.

As far as a custom $150 internet-tune goes, it's a bit of a toss up. There are many who have seen good gains compared to an off the shelf map. Otoh, if you're going to spring for a full on dyno/road tune, that's $150 that you could save towards it.

Are you going to "seat of the pants" notice the difference between a Cobb ots stg II map and an internet tune map? Most likely not.

My advice would be to spring for a dyno/road tune. Best money you'll spend on the car (next to a good alignment of course.)

I think Zak was confusing your APv1 with an APv2.

the AP V1 cable can be very finicky if you're using a COM to USB adapter. data logging is interesting but, like Colin said, without a wideband O2 is isn't going to generate nearly as much useful data.

not sure what the supporting mods for Cob stage 2 are on an STi but for a WRX I wouldn't use the stock map as the base map. use the Stage 2 map as the base map so you don't have to reflash if you loose power.

I agree with Colin: I wouldn't pay $150 for an off the shelf "internet map" but rather save that money for a tune on your car.

I used the AP V1 for several years and just sold it last fall. I got a custom tune after my turbo swap.

edit

Mr Kleen wrote: not sure what the supporting mods for Cob stage 2 are on an STi but for a WRX I wouldn't use the stock map as the base map.

downpipe and ecu reflash

Thank you guys. I'll leave my ECU the way it is. I'm going to play around with logging next week.. I don't have the money for a wideband right now.

These guys have covered 99% of the bases, but I thought I would throw in my $.02 about logging. When you log, you definitely want to have the following parameters logged:
RPM
AFR (usually AFR sensor #1, only good down to 11.83:1, but it helps )
Boost (In PSI, usually Manifold Absolute Pressure)
Ignition Total Advance
Injector Duty Cycle

If you can, log:
Learned Ignition Advanced (may be known as Ignition Knock Advance)
Knock (may or may not be there)

I was planning on doing:

• Engine Speed
• Ignition Total Timing
• Knock Correction
• Manifold Relative Pressure (Corrected)
• Manifold Absolute Pressure
• Primary Wastegate Duty
• Throttle Opening Angle %
• A/F Correction #1
• A/F Learning #1
• Mass Airflow
• IAM (Ignition Advance Multiplier)* (extended parameter)
• Injector Duty