Speedcal Wiring

[arayray]

Where can I find how to wire a speedcal? I already have one hooked up with my T45 (PO did it) but I am going to swap in a T56 and need to figure out how to wire it.

 

[04DeadShort]

http://www.americanmuscle.com/speed-cal-install.html

 

[Helomech74]

I didn't have to do anything different other set the switches in the unit. Make sure you have the extended range unit if you are using a T56 from a 03-04 Cobra.

 

[mwolson]

Tremec sells T56s with two kinds of speed sensors, one for OSS cars they call "electronic" and one for VSS cars that they call "mechanical". You can get away with using an old Standard Range Speedcal if you are swapping a VSS transmission into a VSS car (98 & older). You must use a newer Extended Range Speedcal if you are swapping an OSS transmission into a VSS car.

 

[arayray]

Tremec sells T56s with two kinds of speed sensors, one for OSS cars they call "electronic" and one for VSS cars that they call "mechanical". You can get away with using an old Standard Range Speedcal if you are swapping a VSS transmission into a VSS car (98 & older). You must use a newer Extended Range Speedcal if you are swapping an OSS transmission into a VSS car.

How can I determine if it is OSS or VSS?

 

[mwolson]

Pull the sensor out of the transmission and look at it. It it has a gear on it, it is a VSS. If it has a flat face, it is an OSS. You can see a photo of each on this page: http://www.accutach.com/general-how-tos/vss-oss-swaps

 

[arayray]

How can you identify if the speedcal is standard or extended range?

 

[mwolson]

I believe the only difference is in the firmware of a microcontroller, so there are no visual clues. If you tell me your current setup (tire size, axle ratio and Speedcal setting), I can tell you which you have.