Please Help

[Dan42]

I have a 1990 GT that I got recently.this is my first mustang.its hitting the rev limiter at 4900 rpm.that seems low.how do I change that? It doesn't have a msd ignition box but it does have a bama tune. I called them and they said that the rev limiter was not changed with the tune as far as they know. do I have to take it to a performance shop? Or is this something I can do by myself? Any help would be greatly appreciated thanks.

 

[Mustang5L5]

Rev limiter is 6250. The stock tach is notoriously inaccurate and slow to respond

 

[Dan42]

Rev limiter is 6250. The stock tach is notoriously inaccurate and slow to respond

It has a auto gauge big tach.

 

[Steel1]

I have a 1990 GT that I got recently.this is my first mustang.its hitting the rev limiter at 4900 rpm.that seems low.how do I change that? It doesn't have a msd ignition box but it does have a bama tune. I called them and they said that the rev limiter was not changed with the tune as far as they know. do I have to take it to a performance shop? Or is this something I can do by myself? Any help would be greatly appreciated thanks.

Are you sure it's tune related and not a mechanical/sensor issue?
I would pull codes first and see if anything shows up.
Nothing you could change yourself with the Bama chip, unfortunately I don't here a lot of good
experiences with the those tunes.
If you want to tune yourself your going to need to go a different route.

 

[General karthief]

What other mods do you have?
And I agree with checking for codes.

 

[Dan42]

Are you sure it's tune related and not a mechanical/sensor issue?
I would pull codes first and see if anything shows up.
Nothing you could change yourself with the Bama chip, unfortunately I don't here a lot of good
experiences with the those tunes.
If you want to tune yourself your going to need to go a different route.

Thanks. I will try that first.