Things need for a speedo conversion

[Trunks]

i'm not quite sure what area this would go in, gen tech, advanced tech? idk, so i'll put it here and let u move it if it dotn belong here.
Anyways, if i gota formula with a 115 mph speedo, what conversions would i have to do to make it a 155mph speedo

[sam r.]

um......install a 155 speedometer. :D

[Trunks]

<blockquote>quote:</font><hr>Originally posted by sam r.:
um......install a 155 speedometer. :D <hr></blockquote>

and that involves what?

[Distephano]

Take out the old one and put the new one in [img]smile.gif[/img]

Seriously though, this doesn't belong here.

Anyways, the matter isn't as simple as just putting in a new cluster. I belive if you do this, your spedeo and tach will read incorrectly.

Use the search function, this is a topic that has been discussed many times, for a long time.

[Dojo2000]

<blockquote>quote:</font><hr>Originally posted by Trunks:
i'm not quite sure what area this would go in, gen tech, advanced tech? idk, so i'll put it here and let u move it if it dotn belong here.
Anyways, if i gota formula with a 115 mph speedo, what conversions would i have to do to make it a 155mph speedo<hr></blockquote>

Why would a V8 Formula even come with a 120 MPH speedo?

Are you taking about a 3rd Gen F-body (did they even make Formulas then)? I believe some of those came with actual 115 MPH speedos. They weren't EFI so IIRC they don't actually have a PCM that controls the speedo.