Dyno Guesses & Bench Racing Forum - Guess my top speed....for fun!

98 Z M6 with factory 3.73 gears. Heads and cam, headers, etc. etc. Made 430hp on a Mustang Dyno after tune.

Just wondering what in theory my top speed could be. Factory speed limit deleted (was told it was 162mph from the factory) and rev limiter set at 7,000rpm.

I have had it to 135mph in 4th at about 6k rpm's or so, was racing a C6 so don't remember exactly where the rpm's were but still had a ways to go.

Anyone like to offer an educated guess?


S

1 billion miles an hour...

i would say somewhere around the 170-180 range.

1 billion miles an hour...

i would say somewhere around the 170-180 range.

Thanks, that's what I was guessing. I entered the data into several top speed calculators and they said 180-189. Would love to find a place to safely give it a go.


S

Would love to find a place to safely give it a go.

it's called Nevada.......lots of open road.