Stage 3 logs on 91 octane pump. Comments please. Ideas on boost, timing, and fueling.

[Audi S4 Turbo]

We did some logs the one right below was the best of the 4. Before I was only running 18lbs due to the MBC capping it there. We turned it up to about 21 tappering to 19lbs. The logs were done on a pretty much flat freeway - some runs slanting up. No runs were downhill. Out side temps at about 70 degrees. This is with the mbc running in parralell with the N75. Keep in consideration, I had one passenger.

ALL runs ar on 91 octane. We do not have 93 as some of you other east coast stage 3ers have.

http://quattro.rcrholdings.com/S4/EC...7.5d_22psi.htm


Main mods are k04, 60lb injectors w/ ecu file, no cats, ER intercoolers, 85 mm maf, and rs4 accordian hose.


Look at it and let me know what you think. Recommendations and/or critisizm is ok. Also have heard I should run only n75 as the file requests at what I am getting.




All the files are here.

http://quattro.rcrholdings.com/S4/ECUx_logs/Justin/

In order:

18 psi (1st run - 7.5 degrees timing): http://quattro.rcrholdings.com/S4/EC...8-24_18psi.htm

21 psi (2nd run - 7.5 degrees timing): http://quattro.rcrholdings.com/S4/EC...7.5d_22psi.htm

21 psi (3rd run - 4.5 degrees timing): http://quattro.rcrholdings.com/S4/EC...4.5d_22psi.htm

21 psi (4th run - 6 degrees timing):http://quattro.rcrholdings.com/S4/EC..._-6d_22psi.htm

[exorcet]

bump. try adding some timing back as correction factors look okay. also try adding 5 gallons of 100 octane to offset our crappy 91.

still jealous of the ER IAT delta.. i need water/meth to cure the envy.

[JDM EJ1 95]

looks rich to me?

is this what most stg3 files are running at?


is that accurate at 10.8:1 AF?


damn talk about conservative.

[exorcet]

looks rich to me?

is this what most stg3 files are running at?


is that accurate at 10.8:1 AF?


damn talk about conservative.

you gotta look at the o2 voltages.. .86/.87 is perfect. It's not wideband data but a decent indicator.

[JDM EJ1 95]

got ya.

[roostersa4ultra]

Have found interesting intormation on Octane boosting with Toluene. Check the below link:

http://www.elektro.com/~audi/audi/toluene.html

[AudiSportB5S4]

this is "Marcs Fueling kit" right ?

[exorcet]

this is "Marcs Fueling kit" right ?

correctamundo

[Daft]

The knock voltages are extremely high in comparison to the CF readings.

Typically you would see about 3times the CFs with that kind knock sensor voltage.

[exorcet]

The knock voltages are extremely high in comparison to the CF readings.

Typically you would see about 3times the CFs with that kind knock sensor voltage.

i think it might correlate with the pulled timing via lemmi. i have the exact same KV's with CF's moving from 2-3 at start to 11 at redline.