Quote:
Originally Posted by SATINSTEEL1LE
FYI I started with the maggie tune and it was COMPLETE TRASH. The car was running horribly and it was running out of lowside fuel pressure. I'd be VERY careful with that stock tune. When I had Ted do a real tune for me, my car picked up almost 100hp over the maggie tune.
No way after seeing the logs for that tune, would I ever run that tune.
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I have heard that from others on htis forum as well, BUT my Magnuson tune, which is very recent (end of September), produced the following (below) dyno chart and the below on-road log, all done at 3000 foot elevation and with traction control active during the entire on-road log (still on at over 80 mph) because of my narrow LT1 wheels and OEM run flat tires.
The dyno chart basically shows OEM ZL1 level power at mid and peak rpms, and more than OEM ZL1 power at low rpm. It also shows a reasonable AFR curve.
In the log chart (from the Banks DataMonster), the traction control is obviously retardingg the timing, but that's not the tune's fault. It's the narrow wheels and the OEM run flat tires. I have recently replaced the OEM 245 width rear tires with 275 Nitto 555R2 drag radials, but cannot do another log run now with the cold temperatures and ice & snow we are getting. :(
Since the engine power with the Magnuson tune exceeds what my rear tires can handle already, I have no reason to complain about the tune.
Jim G