[BoostedX2]

Originally Posted by forespeed

I picked up my 13 ZL-1 Conv. this past week from install of 630HP upgrade by Lingenfelter.
When picking my upgrade pkg I considered the following, maintaining ride and drive, hp per $ spent and factory warranty.
I did add the upgrade coolant recovery tank in addition to the 630 upgrade. My cost was about $3500 total for 50hp increase versus $10k for 120hp. I maintained my original engine assembly with my $ going for supercharger and cooling upgrades.
The Lingenfelter group will be shooting for 82% of upgrade to the rear wheels. My upgrade should have netted 41 rwhp. I was surprised to fine the before dyno run showed only 420 rwhp from the stated 580 at the flywheel. Normal loss of 18% would have meant 475 rwhp. No idea where 55 rwhp went but the good news is that after dyno run showed an increase of 92 rwhp or 512 rwhp total. So the upgrade not only increased my rwhp by 42 but also corrected the factory tune by another 50 rwhp. I'm so glad I chose to have this upgrade done and corrected the error from the factory.
So final dyno shows 512 rwhp and 513 torque. Based on the 630 hp/torque goal reduced by 18% loss in driveline, my car should be 517 rwhp/torgue so I'm happy at what looks like a loss of 19% to the driveline.
I'm old enough to have driven some of the original muscle cars in the 60's and I can now say my ZL-1 feels like my cars did back in the day. I can stab it and break the tires loose with the rear swinging back and forth and the nose in the air. I now tell my fellow ZL-1 owners, get a tune on your ride even if you don't mod it but to assure your getting all your bang for the buck.

Auto or manual?