Hey dudes,

Pretty positive i've hit MBT finishing off the tune on the Prancer tonight.
Upped the mid range timing with nice 10-15tq gains.
Upped the timing above 6k with no gains at all, 2 back to back pulls showed no gains, dropped it back to the previous setting and torque stayed the same.

Fuel is ~E70-75.

Graph below.



First run is the average out of 3 base lines.
Second run is added mid range timing, and the higher top end timing
Third run is the added mid range timing, but the top end timing of the first run.

 

i can't be positive if its past mbt. but i think you could use a few more psi of boost.

 

Depends on how consistent you were with the pulls. Same stretch of road, going the same direction, starting at the same speed and run conditions (ECT, throttle application, similar driving conditions before the pull, etc.) How do the 3 baseline runs compare? Do they have max/mins above and below the test runs? If so, you might not be getting consistent enough pulls to find MBT at all.

Did you try upping the mid-range timing any further?

Looks like 5500-6500 might be about right, 6500+ might actually prefer the higher timing so you may not be ramping it in fast enough. Hard to say though, could just be the smoothing.

 

What is your timing at now?

 

Same stretch of road, same direction, start point.
3 baseline pulls were within 3nm of each other.

 

Mind posting a plot with just your 3 baseline pulls? Just looking to see how consistent your data is, not really concerned about the peak numbers though.

 

seems rich to me, add more boost and lean it out to 11.8

 

Its running 12:1 ish right now, i think your looking at the boost side.