Ok, here are our (K03) results of logging AMS vs APR vs GIAC....

[Mark P]

One test car, 3 chips.

Test car:
Ron_C's 2001.5 M-box
Miltek 3" exhaust
otherwise stock, for power mods.

Chips:
AMS M-box
APR M-box
GIAC T-box
We were/are planning to do stock as well, but figured most weren't so interested in it.

ECUs were installed and driver drove for 1-2 days before logs were taken.

3rd gear pulls

93 octane

Temps were similar in the mid-upper 50's.

3 logs taken of each, better 2 included in these results.

Only inconsistancy was 4 people in car during APR logs vs 2 people for AMS & GIAC. Possibly impact on load/acceration, but unlikely much more impact on below logs.

I'll make some comments about the graphs below, but otherwise just let the graphs spark the conversation...




RED = AMS
BLUE = APR
GREEN = GIAC


GIAC spikes and car cuts throttle as safeguard. Otherwise, all cars boost the same after 5k RPMs:




AMS & GIAC ask for more than APR at lower RPMs:




GIAC spikes and car cuts throttle as safeguard: (sidebar: 6th gear at 70mph was even worse, back and forth with boost spike and throttle cut). APR gets rid of stock below100%@below4k stock limit, but AMS and GIAC don't - kinda hard to tell with all of the throttle cut by GIAC, but you can if you look closely. :


MAF similar to boost, as expected:






Similar timing below 5k RPMs, APR has lower timing above 5k RPMs:




APR's lower timing likely due to less aggressive maps resulting in less Timing Retard:


GIAC using much more fuel than others:


GIAC using much more fuel than others. I'm still not sure there's been a conclusive answer to what >100% duty cycle really relates to in the physical world for this situation:


GIAC very rich. APR & AMS similar, APR leaner early on, and AMS going leaner at high RPMs (Sidebar: I always thought GIAC was going this rich to achieve higher timing [albeit with other side effects], but it sure doesn't look like this is netting any more timing that AMS has with a leaner A/F. Oh well):

[S4nehm]

Great info though.

[VerrÜckt]

[Mark P]

[Aman_UnatrlyAspiratd]

[Tony@EPL]

[reefer_bob]

[Mark P]

[Mark P]

[PSmalls::DoggieStyle]