87 buick grand national

Allennscg
0

Asked by Allennscg May 02, 2009 at 09:29 PM about the 1987 Buick Grand National

Question type: Car Customization

The digital speedometer stops at 85mph, how do make it go higher then that?

3 Answers

John Saffrahn
20,935

u dont and dont destroy the car its worth a good amount if its the actual grand national. get a gps with the speed thing on it. tells u ur speed takes quarter mile times. and ur g-forces

Mark Holda
25

Caspers Electronics sells a chip that will show speed up to 199 MPH ont he digital dash. http://www.casperselectronics.com/store2/index.php?cPath=5_6_33 If that does not work look under GN-86/87-Dash Repair. HTH MJH

2 out of 2 people think this is helpful.
kleaver641
0

maybe it was damaged or rather it's not working. try to check it's wires, maybe it's not properly attached to the engine. kurt Buick Grand National Parts seller

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