Dallas Speed Cal.

PSUCOBRA96

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Guys I need to figure out what my codes need to be for my Dallas speed cal.

We switched to 4.30s and have 18's with MT P305/35/R18 on the rear. Trying to get this thing to read correctly. Right now at about 10mph it read 30 mph and gets worse from there. Other than that my new built rear seems to be doing great. I'm excited to take it to the track this weekend.
 

SVT CAMR

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Assuming you have a T-45 with stock speedo gear.

Not sure what speed cal you have if it is standard or extended. here are both.
Started out with the 1010 tire calculator.
Tire Size Calculator - Tire & Wheel Plus Sizing
STOCK revs per mile: 809.9
current revs per mile 787.71

After finding revs per mile I used Mark Olsons website to find the VSS pulses per mile. Thanks Mark:rockon:
Ford VSS Calculator
VSS Pulses per Mile: 9983.187789473683

Then I clicked on the speed cal link and entered the current VSS Pulses/Mile.
STOCK Setup VSS Pulses per Mile: 8000
Current Setup VSS Pulses per Mile: 9983.187789473683
Recalibrator & Speedcal Calculator

YOUR CODES BELOW for 4.30 gears - 305/35/18 tires - stock trans.

Standard speed cal your code 1001111111
extended speed cal your code 0010100000

New FRPP Recalibrator your code 0.80
OLD FRPP Recalibrator your code 10111110
 

samshady

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If SVT's instructions don't work just give dallas mustang a call. They were able to give me a code that got me within 1 mph. It's nice to get good customer service from the manufaturer.
 

PSUCOBRA96

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My cousin called them and plugged in the numbers they gave him. I haven't heard back, so I don't know yet if they worked.
 

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