speedometer question + top speed question

[Krazy351w]

is there any way to convert my 92 RS speedo to the 145 mph version and make it read right? And also remove the top speed limiter. :)

[BLKCLOUD]

Might get a better response at www.thirdgen.org.

[Krazy351w]

thanks bro. for at least giveing me a suggestion. seems no one else cares to help a third gen owner out these days.

[chevyguy8413]

is there any way to convert my 92 RS speedo to the 145 mph version and make it read right? And also remove the top speed limiter. :)

Prolly noone answered cuz its not an easy fix....replace the speedo...I don't know if you will need more mods to make it read accurately or not. You could just buy the necessary parts which are OEM for say...a 94 Z28....speedo unit, and sending unit/connections...or whatever is necessary..but that would be pretty expensive.
Sorry, that's the best I can tell you.

[mrr23]

just put the speedo in and it's done. as far as removing top speed limiter, you have to have the chip reprogrammed.

[Krazy351w]

If i carburate it would that solve the top speed problem?

[chevyguy8413]

If i carburate it would that solve the top speed problem?

Carburating the engine is part of the process; the engine speed and mph inputs will likely still exist , and thereby will limit top speed.

[mrr23]

If i carburate it would that solve the top speed problem?

well, putting a carb on it won't do it. the limiter is based on the speedometer sensor output to the ECM. a $5.00 way to bypass it is to interupt the signal. bascially put a on/off switch inline of the wire going to the ECM. when you want to pass 110 mph, you just turn the switch off. the speedo quits working and you'll get a check engine light. you won't know how fast you are going, but, you won't be limited.

the limiter cuts fuel.