GM Releases 2013 bogus HP ratings at PRI show

[Andrew Hill]

Originally Posted by Rat Raceway

Both cars your quoting are NOTHING like they came from Chevy.
There is NO WAY that is the stock GM tune! Or engine,cam, gears, trans, vert, axles, driveshaft and the list goes on... They will not 1.3x 60' stock!!!

The COPO cars are fast from chevy, but again NOTHING like Cazzette or Patterson.

I'm not arguing, it's just apples and oranges comparing what comes off the floor and the cars your talking about. They are more like a BIW ground up build. More like 200k car.

So they were completely lying about using the stock GM tunes and doing absolutely nothing to the engine? Clearly they don't have the 1.80 low powerglide in them still, that is what I said, different transmission and converter. Why would changing a driveshaft or axles have any effect on the car whatsoever? They come with aluminum driveshafts and Strange 35-spline axles.

They had these cars for less than two weeks before Indy, not really enough time to do many in depth modifications, especially seeing as Cagnazzi was worrying about 2 pro stock cars as well.