RPM vs speed question
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From: Elm City, NC
Car: 87 IROC Z
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
RPM vs speed question
I've got a 87 IROC. 5.7 with 700r4 and 3.27 rear. I'm running about 2100rpm at 60mph. Seems a little high to me, but I could be wrong. Is this correct? Surprisingly my tach is pretty accurate.
Steve
Steve
Joined: Dec 2004
Posts: 16,772
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: RPM vs speed question
what size tires are you running? and do you have .70 od
Joined: Dec 2004
Posts: 16,772
Likes: 1,002
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Thread Starter
Member
iTrader: (1)
Joined: May 2010
Posts: 306
Likes: 0
From: Elm City, NC
Car: 87 IROC Z
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
Re: RPM vs speed question
Supreme Member
Joined: Mar 2003
Posts: 4,771
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Joined: Dec 2004
Posts: 16,772
Likes: 1,002
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: RPM vs speed question
42 mph is lockup , just mess'n with ya. I always reprogram those up !!
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