Speedometer
Thread Starter
Junior Member
Joined: May 2001
Posts: 24
Likes: 0
From: San Juan, TX
Speedometer
I have a 1991 Z28 305 and was wondering what changes have to be done to change the 110 mph speedometer for a 140 mph? If this is done will it pass the 110 mark or will it stall like it does now. Thank You.
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
The speedo will change nothing accept appearance (110 to 145), the limiter is programmed into the PROM.
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The mind is like a parachute, it only works when its open
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The mind is like a parachute, it only works when its open
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Feb 13, 2019 12:51 AM