Post by northstrperformnce on Mar 9, 2017 23:27:20 GMT -6
Well, a customer of mine dyno'd his 97 Deville. Picked up 45 HP at the wheels and 40 ft. lbs of torque. I figure I have fairly accurate numbers with drivetrain losses and the result is 57 HP increase at the flywheel and 45 ft. lbs. If the same numbers transferred over to a 4.0, we'd be in/around 40 additional horsepower at the crank.
In about a month I will get my uncle's tuned Autobahn Aurora (Green 1997 model) on a chassis dyno and get the real numbers.
LancesLambos on here has ordered a tuned PCM for his 98 Aurora (non autobahn) so we will see what his input is on the performance.
I still believe there's a lot of these awesome cars out there on the road. This is also the reason why I invested so much into getting this tuning stuff all complete and in my shop. I still wish I had a chassis dyno on-site.
BTW: I have dyno sheets on the 275 HP/VIN Y motor tune. If I didn't, I wouldn't have posted numbers. I was amazed at the gains and how much GM de-tuned these from the factory.
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'98 Aurora w/ Accurate Engines port & polished VIN Y 4.6 bored.30 over, NSP stage 3 PCM, K&N intake, performance exhaust, Razzi skirts, Lund wing, strut bar, custom paint, went on a diet and lost 160 lb.