Speedo Cal. on 3.90

[rudeone707]

I was looking into the 3.90 gears from pro5.0 and i need to know if they make a 3.90 speedo calibration.

 

[mytight95]

the closest you could get it with a gear on the speedo is a 21 tooth with the 3.90's your optimum speedo gear ratio would be .327, and the 21 tooth would put you at .333, that's only 5 thousands off. i think thats like less than 1% off

 

[rudeone707]

where is the best place to buy that speedo gear?

 

[mytight95]

you can buy it at hanlon motorsports, steeda, you can get them from 50resto, a bunch of different places. if you want to check the calibration yourself go to www.hanlonmotorsports.com, and enter your tire size gear ratio etc. into their speedo cal.


jason

 

[5.0 from 95]

Get a Speed Cal and be done with the whole thing.


Paul

 

[final5-0]

You can use a 23 tooth gear and it will be very close.

Some folks have said that they won't last but I've been running one for 5 to 6 years with no probs.

Then again, my car is a weekend toy but hey, now you know there is another option.

Later
Grady