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COBRA SCOTTY

HOW DO YOU RECALIBRATE YOUR TIRE SIZE WITH SCT TUNER.

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HEY TEAM SHELBY FORUM MEMEBERS AND GUEST,

 

I NEED A LITTLE HELP FINDING THE SETTING TO REPROGRAM MY TIRE SIZE WITH MY SCT LIVE-WIRE TUNER SINCE I JUST CHANGED OUT MY WHEELS AND TIRES ON MY GT500 AND I AM SELLING MY 20 in CHROME RAZORS n TIRES.

 

ANY AND ALL HELP IS APPRECIATED.

 

 

THANK YOU IN ADVANCE FOR YOUR RESPONSES !!!

 

 

SCOTTY G.

Edited by COBRA SCOTTY

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When you load your tune, it will ask you is you want to change the parameters. Say yes. Then toggle through until you see where it says, revolution per mile and change it.

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When you load your tune, it will ask you is you want to change the parameters. Say yes. Then toggle through until you see where it says, revolution per mile and change it.

 

 

On a related note, is that input related to front tire data or rear tire? Mine are slightly different, so wondering which one is used.

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THANKS FOR THE TECH SUPPORT GUYS. I HAVE 305/45/18 DRAG RADIALS SO DOES ANYBODY KNOW THE REVOLUTIONS PER MILE OR WHERE I CAN FIND THE FORMULA FOR THAT EQUATION ?

 

THANKS AGAIN AND I SURELY APPRECIATE YOU FOR THE HELP !!!

 

 

SCOTTY G.

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THANKS FOR THE TECH SUPPORT GUYS. I HAVE 305/45/18 DRAG RADIALS SO DOES ANYBODY KNOW THE REVOLUTIONS PER MILE OR WHERE I CAN FIND THE FORMULA FOR THAT EQUATION ?

 

THANKS AGAIN AND I SURELY APPRECIATE YOU FOR THE HELP !!!

 

 

SCOTTY G.

 

 

Which one do you have? NT555 = 722 revs per mile http://www.nittotire.com/index.html#index%2Etire%2Ent555r%2Esizes

NT05 = 719 revs per minute http://www.nittotire.com/index.html#index%2Etire%2Ent05r%2Esizes

 

Also, be careful scrolling through those options on the tuner, I was adjusting for my new gear ratio yesterday and I think I boogered up a spark advance setting. I need to shoot Justin at VMP an email to find out what the original setting was.

Edited by wingsnut

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Rear. The only reason for the recalibration is for your speedometer.

 

Thanks!

 

Which one do you have? NT555 = 722 revs per mile http://www.nittotire.com/index.html#index%2Etire%2Ent555r%2Esizes

NT05 = 719 revs per minute http://www.nittotire.com/index.html#index%2Etire%2Ent05r%2Esizes

 

Also, be careful scrolling through those options on the tuner, I was adjusting for my new gear ratio yesterday and I think I boogered up a spark advance setting. I need to shoot Justin at VMP an email to find out what the original setting was.

 

 

Just reload your tune without selecting options and you'll be back to your intended spark settings. Then go ahead again and adjust for your new gears.

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I usually take the car out with a gps and confirm the mph .. 40 series is about 744 revolutions. You get it close at 100 mph and it should be abler to make it spot on..Pete

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Just reload your tune without selecting options and you'll be back to your intended spark settings. Then go ahead again and adjust for your new gears.

 

 

Thanks Seahorse! Never dreamed it would be that easy.

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Which one do you have? NT555 = 722 revs per mile http://www.nittotire...Ent555r%2Esizes

NT05 = 719 revs per minute http://www.nittotire...2Ent05r%2Esizes

 

Also, be careful scrolling through those options on the tuner, I was adjusting for my new gear ratio yesterday and I think I boogered up a spark advance setting. I need to shoot Justin at VMP an email to find out what the original setting was.

 

 

 

That sound about right, I cant remember the exact number I set mine to but that is in the ball park.

I used my garmin and set it till the speeds matched from 10 to ??? mph

My NTO5 ended up some where around 720 to 724 rpm

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Which one do you have? NT555 = 722 revs per mile http://www.nittotire...Ent555r%2Esizes

NT05 = 719 revs per minute http://www.nittotire...2Ent05r%2Esizes

 

Also, be careful scrolling through those options on the tuner, I was adjusting for my new gear ratio yesterday and I think I boogered up a spark advance setting. I need to shoot Justin at VMP an email to find out what the original setting was.

 

 

 

That sounds about right, I can't remember the exact number my NTO5 liked.

I used my garmin and somewhere around 720 to 724 rpm my speed matched the garmin dead on from 10 to ??? mph

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THANKS AGAIN GUYS FOR YOU HELP !!! I AM RELOADED AND RECALIBRATED. :happy feet:

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Thanks!

 

 

 

Just reload your tune without selecting options and you'll be back to your intended spark settings. Then go ahead again and adjust for your new gears.

 

 

 

I figured it out.......when I went into the tuner to adjust the gear ratio (which is loaded with 2 of Justin's tunes and the Ford Racing tune) I accidentally loaded the Ford Racing tune...car is kind of a dog with that tune in it.

All is good now

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Good info, as I just replaced my rear tires with Nitto 05r's 315/45/18 and need to recalibrate the speedo also, this info comes along at the right time. Does anyone know what the recommended PSI these tires need to at for street use? Also track use?

Thanks,

Mike

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