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Old 06-26-2018, 02:44 PM   #1
L78toLT1

 
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Drives: Hyper Blue 2016 2SS 6M
Join Date: Sep 2017
Location: North Ga
Posts: 1,810
Maggie Tuning Issue

Hey fellow PD guys. I’m running a Maggie with a 90mm pulley on my M6 car. My other mods are 1 7/8 long tubes with cats, Roto-fab, Pray ported TB and ZL1 low pressure pump. I was working with Ted to get my Maggie setup dialed in when I had to go out of town on business. Ted sent me the 2nd iteration of my final tune but I have been out of town for a couple of weeks and have not loaded it yet but should get back to it later this week.
My car runs great from idle to around 2,000 rpm and from 2K up but has a “flat” spot right around 2K rpm that is noticeable under gentle acceleration or with the cruise set around 2k rpm. Under moderate to hard acceleration and the car blows right thru this dead zone. Ted speculated that torque management is causing it to pull timing, then abruptly dump the timing back in with the slightest bit of extra pedal. I’m confident that Ted will be able to tune this out if it is possible but from what I read torque management can be hard to deal with especially on M6 cars.
I am curious if anyone else running a Maggie, especially on a M6 car has experienced this issue, and if so, were you able to completely tune it out? It seems strange that the ECM would want to pull timing when under such low load conditions. Other than in this narrow rpm range, the car drives exactly like stock until you get into it.
Ted, if you’re reading this, I am hoping to load your new tune sometime tomorrow. I will let you know how it works and try to capture this condition on a datalog if it is still present with the latest tune.
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2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned
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