Porsche Forum - Porsche Enthusiast Forums

Nice. The performance people are wringing out of the GM LS series engines is just phenomenal, one reason why I consider it, overall, the best automotive engine in the world (I know I'll get flamed here but there is a lot of fact-based data to support that view).

I've seen rear wheel dyno runs of over 1000 Hp from two C5R or LS7 'vettes, top speeds in the 230-235 range for streetable (okay, barely strteetable, but still . . .) vette's and 200 mph done in the standing start mile by a Camaro that was licensed for the street but not really daily driveable-had been trailered to the track).

My personal experience was I drove my 'vette, which even at the end drove in traffic and to work with mo more drama than stock,one time over 200 mph -- a personal goal -- 203 by tracking radar. It did seem fast (and loud) at the time but nothing like 200 mph and nothing like it seems in videos, for some reason.It was only afterward that I thought of all the things that could have gone wrong, and would eventually, if I kept that type of driving up. I never even sat in the driver's seat again, and sold it two weeks later, to my wife's extreme relief.

I've never had my Porsche over 104-106 mph - its top speed in the SS quarter mile, on those couple of times I've run it at the strip. But I imagine that, up to very near its top speed, it is stable and undramatic. Don't plan to find out, though . . .