Thread: Top speed you've gone before backing off.

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My '79 Mustang with a '69 HiPo 351 would turn 5400 in top cog, 2700 was 75 mph. That should be 150 mph, the dial ran out of numbers. Smoke would puff out the scoop at 5500, so I would back off a tad and let 'er live, valve float isn't nice.

Back in the old days 70's There was a 2-3 mile strip of four lane to get onto the interstate. It was one of those deals that wasn't finished so there wasn't any traffic on it usually. Three of us guys went to DesMoines one weekend and on that stretch we opened 'em up to see who was fastest There was a 454 Chevelle that just edged ahead of me just inches at a time. I don't remember what the speedo. said but the tach was floatin' around 64-6,500. And that was it, it didn't have an ounce more.

It was a 66 GTO.

You guys would just call BS so I'm not gonna say.
It was in 2003 at the Yakima Indian Res and my car
was a slightly modded Corvette ZR1.
Never been faster since....

DT

I have a Mclaren, my wife and I were clocked at 205 in Barcelona Spain, with the air on
Ken

Originally Posted by Ken Thurm

I have a Mclaren, my wife and I were clocked at 205 in Barcelona Spain, with the air on
Ken

Not bad 205k/hr is 128 mph............just kiding.



Here is the math on eriks post...................146mph
third 29 tire
1 3.08 gear
91.06 circ
5200 rpm
12811 feet
768688 ft/min
146 MPH