A little question

[riden2low]

Curious to know what is your tach reading when in over drive. I have two ATX cars. One is the little woman's, a 95 ATX and I own a 93 ATX. Now when I drive the 93, the tach reads almost 2500 rpms at 70 miles per hour and when I drive the 95, the tach on her car reads about 2100 to 2200 at the same speed. Is this normal? Got a chance to buy a trans out of a 95 and thinking of picking it up and try a rebuild on it. Pull my 93 trans out and put the 95 in and maybe I will get 2200 RPM's out of it.

 

[St Louis SHO]

Tire sizes different?

 

[riden2low]

Never thought of it but no. Just looked and both have 16 inch tires. One has 215 and the other has 225 but are both 16 inchers.

 

[St Louis SHO]

225 is a taller tire, resulting in lower RPM on the highway.

 

[riden2low]

Opps, I should have better explained which tires are on which car. The 225's are on my 93 and the 215's are on the 95 which gets the 2200 rpm's . Weird huh?

 

[St Louis SHO]

Odd, unless your car is not going into lockup.

 

[shotime1994]

Are you sure both speedos are correct? Try it with a gps.

 

[lowc]

I dont really know if this has any effect but the two cars have different computers.

 

[riden2low]

The 93 ATX I updated the computer to a 95 that I bought from someone here on the forum. I could put the old one back in to see if that makes a difference. As for the lock up, I think it locks up. You can hit the over drive button and the tach will jump up over 3000 rpm'***** the button again and the tach drops to 2500.