Speeds at shift pointw

[efnfast]

Alright, which gear gives you a higher top end, 4.10's or 3.45's? Realisticaly, not bench racing.

[Mystic ZR-1]

Steve
You can't pull 7500 in 6th gear? Bertha Must need a tune up...

[XfireZ51]

Originally Posted by efnfast

Alright, which gear gives you a higher top end, 4.10's or 3.45's? Realisticaly, not bench racing.

Steve,

Lgaff and myself raced side by side one day at Byron. He ran about .3 faster than I did but we had trap speeds within .01mph of each other. Just one data point. He has 4.10s on his 92, I had 3.45s and we had nearly identical mods done to our motors.

[efnfast]

Dom, I assume you trapped in 3rd, and Lee trapped in 4th? Still, which would have a faster top speed.

[efnfast]

Originally Posted by Mystic ZR-1

Steve
You can't pull 7500 in 6th gear? Bertha Must need a tune up...

I know she needs a tune up Doug, but i think you're asking for a bit much. I wonder what kind of hp it would take to do that..I think somebody might have asked that question already.

[XfireZ51]

Originally Posted by efnfast

Dom, I assume you trapped in 3rd, and Lee trapped in 4th? Still, which would have a faster top speed.

Steve, yes that's the way we came across. Lee's car was probably 2+mph faster than mine at the 1/8th. Something like 91 v 88. I thought you meant top end in the 1320.

[ghlkal]

Originally Posted by Paul Workman

I found this in my ZR-1 file. Marc Haibeck is apparently the author, and should shine some light on speed vs. rpm vs. differential gear - as it pertains to standard tire/wheel size of the ZR-1 (only).

Thanks, Paul, this is very useful information.

[Pete]

Originally Posted by efnfast

Alright, which gear gives you a higher top end, 4.10's or 3.45's? Realisticaly, not bench racing.

I would say 3.45

I don't think a stocker will pull in 6th with either 3.45 or 4.10 rear gears.

Pete

[XfireZ51]

Originally Posted by Pete

I would say 3.45

I don't think a stocker will pull in 6th with either 3.45 or 4.10 rear gears.

Pete

Pete,

If I recall even GM said the car would top out in 5th, not 6th.

[LancePearson]

March 2, 1990 fort stockton 24 hour record run...they said they ran in fifth gear on the 7.7 mile track at 190 mph on straights and corners sapped it down to 175 then back up again running at 5500 rpm stock rear end which would be 3.45 i belueve so the chart is off just a touch assuming same tire size.