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Tuning & Engine Management Engine Management, EGT temps, timing, wideband, datalogging, fuel trims, etc.

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Old 09-01-2007, 12:08 PM   #1 (permalink)
 
Registered: May 2005
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low load tuning

Ok, so I'm pretty happy with my tune at wot. thanks to a lot of help from evom members, etc. I'm new to tuning but learning a lot.

At WOT in 3rd gear, I'm tuned to about 11.5 at peak torqe then down to 11.2 or so all the way till it gets richer in the end. I first adjusted my afr's then timing, then fine tuned. I'm tuned for zero to 1 count of knock. Most time is spent in the 240-260 load cells. I'm using a MBC.

Now, I want to tune the lower load cells. I've done searches, but can only find bits of info here and there.

1. How do I best datalog in the lower load cells? Its tough to keep things at say a steady boost of 15psi while still trying to drive. Would it work to simply turn down my MBC and go wot?

2. What sort of AFR's should I be aiming for in lower load cells. Same? Higher? if higher, then can you give me a ballpark # to shoot for? ie. At a load of 120 aim for an afr = x at peak torque, tapering to y at redline...

Any help or guidance would be appreciated. thanks.
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Old 09-01-2007, 10:13 PM   #2 (permalink)
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Lower load cells meaning 2500-4000 RPM's at WOT? If so, I've been able to hit the 100-120% region by starting a 3rd gear pull at low RPM's. I wouldn't turn down the boost to try and hit spots on the map and I'm not too worried about 240-260% load at less than 2500 RPM's.
What spots are you looking at?



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