ralphmustang

Hi USA friends

Finally my car comes tommorow back after installing a vortec supercharger in me mustang 2005 gt automatic i had trouble codes and the could not find the problem....but is was a dirty trottle......

so now the next will be 3.73 gears....but because i am so far away it is so diffcult to try things..etc

a guy told me that you need the down and upshifst must do on the dyno because it is a automatic .....Brenspeed told to get a complete new custom tune but the the MAFIA must be off and then it is set for 3.73 gears ..
Diablo Predator told me that i can just modiy the tune from vortec and get everthing right also the up and downshifst

so what is the true??? can you do the down and upshifst with a handtune?
better a custom tune ?

ralph

brunobluto

I'm not a 100% but i think you can use a handheld tuner to set the shift points. I dont know much about that mafia thing though. Its a MAF sensor made by Predator right? Regardless, im pretty sure your hand held tuner is all you need.

iROK24/7

It's always better to have a tune done on a dyno, however presumably whomever you had install the supercharger would know what they're doing enough to tune it... maybe hard to find experienced tuners in the Netherlands. I lived in Brussels Belgium for 4 years and never saw a Mustang... I believe "Pascal" is Belgian & has contacts over there, so he may be best to advise you. HEY PASCAL !

tot ziens!