GIAC Stage 2 Ignition Timing

[nkh79]

Hi All - Now that the weather has cooled off a bit in Chicago, I've been paying a bit more attention to my timing, and was wondering what other numbers people were seeing. Details on the car:

2012 S4 6MT
GIAC Stage 2 w/AWE pulley
AMS Boost Cooler
ECS intake (can't spell it... It's the full one with the carbon fiber box)
Running on straight 93, or 93 and whatever was left over of my 93/E85 mix from last time (usually around E30-E35 at the time it was filled)

All numbers are coming from my P3 gauge.

On the pump tune I'm seeing a peak of 12-14 degrees, which seems like it might be a bit low from some of the searching I've been doing. This is usually from the upper RPM range in 1st-3rd... It'll start at around 10 or so and slowly build up to the peak. Now, don't get me wrong, the car absolutely feels strong, especially in the sub 60 degree weather we've been seeing recently (feels like boost season!), but I'm wondering if there's a little more timing being left on the table.

I would wonder if it were pulling somewhere due to gas, ignition components, etc, but if I run the race map with an E85/93 mix (5 gal of E85 a and the rest 93), I'm seeing peak timing of around 27 or 28, so it seems like the car is certainly capable of hitting higher numbers. Running the E85 mix on the pump map doesn't give me any higher numbers than on straight 93. Not unexpected, but thought I'd mention it to rule out bad gas.

I know that ideally I should get some logs going, but my only non-work laptop went down recently and I haven't had the time to fix/replace, so wanted to hear a bit about what others are seeing on the pump tune, since maybe I just need to adjust my expectations. Any chance I just drove it too easy during the adaptation period?

[mrmomo313]

I took a look at my p3 for timing a while back on the GIAC pump file and it pegged somewhere around 8 at wot... logs clearly show otherwise. Not sure how accurate the timing aspect of the p3 is.

Your peak timing on the race file sounds about right. With the awe pulley and good iats/gas you should be able to hit 23* on the pump file

I have an anemic pump file that maxes out at 18* due to my non awe pulley. My race file hits 29.xx* up top

[nkh79]

Interesting... I had thought that it might be the gauge, but figured that if it was showing higher on the race file, then it must be reporting accurately. Maybe something strange going on with the sampling rate or something. I'll try to track down a better way to log/monitor before going into a panic about it then. Thanks for the info!

[Loe]

Interesting... I had thought that it might be the gauge, but figured that if it was showing higher on the race file, then it must be reporting accurately. Maybe something strange going on with the sampling rate or something. I'll try to track down a better way to log/monitor before going into a panic about it then. Thanks for the info!

Let us know your findings. Mrmomo313 is accurate with the timing targets on the AWE file. You should be able to hit close to that with straight 93 or e85/93 in your current ambient temperatures.

[0331rah]

i'd hate to revive an old thread, but given the fact that im running a similar tune to op, i was wondering if anyone knows if my ignition timing is normal or if its a little low. Hopefully other guys running giac stage 2 91oct. can cross reference their timing tables with mine. https://datazap.me/u/ajdevia/log-153...log=0&data=0-6 I'll also post this pull on this thread: https://www.audizine.com/forum/showt...1#post13210663 Since that thread is still active and might have some useful information for some guys.