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BMS VW GTI JB4 info thread

ChrisMk77

Go Kart Champion
Location
Sweden
Car(s)
2018 GTI Performance
What are desirable timing corrections. I am getting zero a lot when at full boost (22 psi)
Ign 1 shows cyl. 1 timing advance and correction, you want a smooth curve without hard drops of several degrees indicating knock. Ign 2-4 shows cyl 2-4 corrections and should ideally stay at 0, if you get longer timing pulls with 2-3 degrees or more and/or on multiple cylinders you should adjust or look into other issues.
 

Andrewbens

Go Kart Newbie
Location
Modesto
Car(s)
2019 GTi S 6 Speed
If that is pure pump ACN91 you are really lucky, probably higher than 10% ethanol in that pump.

It’s 91 octane from 76 which ED at eqt said was the best gas and they’re across the street from my house. The delta on that was probably 68• at night time I can do a run later this week while it’s 90• degrees I’m sure the timing will drop but I’ve been fine running it hard on the freeway on the way to work for my commute on map 3.
 
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