Superchip retune after 3.90 Gear install?

[downsouthman1]

Is it necessary?

 

[DarkHorse164]

Is it necessary?

I'd think so, if you don't want the mileage and odometer to be off.

 

[downsouthman1]

I thought I need a Speedcal so my odometer isn't off but I need to retune so my air/fuel curves are correct. That's what I'm not sure about. I know the Chip has no bearing on the speedometer.

 

[KaPPaBaLL]

chip does correct your speedometer.. and so does the speedcal.. speedcal is just cheaper..

 

[downsouthman1]

So if I leave my chiptune the same & buy a Speedcal I'd be better off financially? I mean the car will run just the same?

 

[KaPPaBaLL]

yes exactly..

 

[downsouthman1]

Man. Then Speedcal is the way to go. I'm sold & will purchase 1 of those too.

 

[KaPPaBaLL]

yup.. did you check that other post about you spending the $2000?? specs not worth it man get mcleod..
www.maximummotorsports.com
http://www.customracer.com/mustang_driveline.html

 

[DarkHorse164]

Man. Then Speedcal is the way to go. I'm sold & will purchase 1 of those too.

What's the cost to get the chip retuned? Just curious. Speedcals run about $100 before shipping. I think dallasmustang is having a sale on them right now, though...$89, I think it was...could be wrong, though. I also think T&J can reflash your computer to account for the new gearing. Same price...$100. The nice part is that there's 1 less electronic 'box' to screw with if you retune your chip or have your computer reflashed. Just my $.02