on my camaro i guess i have the 2.73 gears which is why i have the 110 speedometer but is there a way to bypass that w/o getting a hypertech tuner?

 

What year f-body???? Most have to be programmed out...

 

it is a 1994 z28

 

It wasn't the gear ratio, it was the speed rating of the tires it came with. Reprogramming is the only way to change the speed limiter. Consider a mail order tune rather than a Hypertech (especially don't buy a new one-waste of money).

 

The setting is in the tune, and must be retuned. You have an A4. If you can pick up a HPP for extremely cheap, it will let you change the top speed limiter, gear ratio, tire diameter, shift points, rpm limiter, etc. Otherwise, either get a tune or purchase a tuning program and open the world up to you. The "performance tune" in the HPP is a joke, I tested it myself and found no difference at the track.
The tires and the gear ratio were tied together, IIRC. If you got the performance package, you got a 3.23 ratio, high speed tires, and a higher top speed limiter. But that was a long, long time ago, and my memory has faded.

 

They made Z-28s with a 110 speedo? lol.

 

If the Z28 did not have the Z rated tire option, then yes........

 

yeah my 95 Z had it.

Bought the 155mph speedo off of member here or ebay? i forgot


easy swap though! still need the limiter tuned out. but that can wait till later

 

i had a 94 trans am with a 2.73's and a 110 speedo. it wasn't speed limited that i knew of. i had swapped the rear for a 3.23 rear and the speedo read a little faster then you were going but i have had it pretty well up in rpms in 4th gear and it never shut off speedo was buried. on a track of course..

 

93 z28 6 speed car here..car has factory 2.73s and 110 speedo.