My speedometer is totally screwed up....
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Supreme Member
Joined: Sep 2000
Posts: 1,230
Likes: 0
From: Michigan
My speedometer is totally screwed up....
I swapped out my old 85 MPH speedometer from my 1984 Camaro and put in a 115 from an 88 or 89 RS Camaro. At the same time, I put in a speedometer gear in the trans from an 85 IROC used for the 16" rims and a 3.23 rear. I have a 3.27 rear in there now with 16" IROC rims with P225/60R16 tires (previous owner put that odd size on).
Anyways, my speedometer reads about 45 when I am really doing 30 and about 60 when I am really doing 40. I opened up the speedometer before I swapped it in in order to change the odometer to match my vehicle's real mileage. Could I have screwed something up in there? Or is it just a bad speedometer? Also, it reads 10 when I am stopped. ANY help would be greatly appreciated. Thanks.
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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH
Coming Soon:
Aluminum Drive Shaft
Anyways, my speedometer reads about 45 when I am really doing 30 and about 60 when I am really doing 40. I opened up the speedometer before I swapped it in in order to change the odometer to match my vehicle's real mileage. Could I have screwed something up in there? Or is it just a bad speedometer? Also, it reads 10 when I am stopped. ANY help would be greatly appreciated. Thanks.
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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH
Coming Soon:
Aluminum Drive Shaft
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The new speedo is slightly screwed up. You need to pull the pointer off and put it back so that it points to zero.
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"So many Mustangs, so little time..."
ICON Motorsports
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"So many Mustangs, so little time..."
ICON Motorsports
Thread Starter
Supreme Member
Joined: Sep 2000
Posts: 1,230
Likes: 0
From: Michigan
But, if it's just a matter of resetting the needle, why would the readings be that much farther off the faster I go? Thanks.
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1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH
Coming Soon:
Aluminum Drive Shaft
------------------
1984 Camaro Sport Coupe - 73K Miles, Rebuilt 355 TPI L98, Crane 2032 CompuCam - 214/220 @ .050", Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Disc Brake Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back
New Paint
Best 1/4 Mile Run (with old LG4 motor):
16.760 @ 80.74 MPH
Coming Soon:
Aluminum Drive Shaft
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