Quote:
Originally Posted by Fast_Freddy
No, 93 on JV stg II 93 octane remote dyno tune.
Has anyone ever logged a stock tune to see what the KC looks like?
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Yes I have logged on the following:
-Stock tune on pump gas (95 RON but I have my doubts)
-Generic tune on pump gas (95 RON but I have my doubts)
-Generic tune on VP Motorsport 103
I can tell you that on both the stock tune and the generic tune on pump gas that the car does exhibit knock. The IAM in both cases moves to 0.2-0.3 in about a day. I have extensively logged this and can say that there is no knock on high load / full throttle runs. All the knock logged is in the part throttle normal cruise area and throttle tip in which results in overall timing being retarded. Fine Learning Knock Correction (as a table) is also being populated which says that the car is actively pulling timing.
On the Motorsport 103 IAM is rock steady at 1 and does not change. There is no knock what so ever and the FLKC table is all 0's. The car is noticeably quicker, smoother, and more crisp. Exhaust tone is sharper and the motor screams in the top end. If I could I would run this fuel everyday as this is how the car is supposed to run.
From this I will make an assumption that the stock tune is aggressive in low and part throttle (maybe for emissions?) and does knock when we have bad or low octane fuel. This results in the global timing to be retarded (due to IAM). As a compromise, I have adjusted the Advance tables lower and increased the Base timing tables in the 6000-7700rpm range. What this allows for is maximum power at full throttle even when IAM is very low.
If anyone wants to see these logs kindly PM me.