? for Mike T.
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Junior Member
Joined: Oct 2001
Posts: 7
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From: Louisiana
? for Mike T.
Hey Mike,
I was wondering if I will need to have my chip re-burned after a wheel and tire change? I'm going from the stock, 265/70/17 to
285/70/16. Also installed a Volant air intake and a "free" throttle
body spacer. One more thing Mike, do you guys have some type of trade-in policy on the superchips. I'd really like to get the new
Tuner.
I was wondering if I will need to have my chip re-burned after a wheel and tire change? I'm going from the stock, 265/70/17 to
285/70/16. Also installed a Volant air intake and a "free" throttle
body spacer. One more thing Mike, do you guys have some type of trade-in policy on the superchips. I'd really like to get the new
Tuner.
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hello FordboyV8,
Starting in the 1999 model year in the F-150, the way to recalibrate the speedometer is in the powertrain program (meaning a change in the Superchip's program), and that does need to be done for either a gear ratio change or a tire size change. If there is a difference in the height (circumference, actually, but we refer to the height in practical terms) between the original tires and the new tires, then your speedometer and odometer will be off, & depending on just how much difference in height, youy can have shift point issues in the automatics.
You'll need to find out what the difference in height actually is between the tires, first. Additionally, the P-metric sizing is not necessarily dead-on accurate, so we *never* go by tire size alone when making those corrections. The way that is controlled is by the revs per mile spec in the powertrain program, every tire has a revs per mile spec from it's manufacturer, and that is what is entered into the powertrain program in 1999 & up F-150's to correct the speedometer.
When someone comes to us and wants us to correct their speedometer, we'll send them our custom program worksheet by email or FAX, and in one area of the form we ask for the before & after tire size and the manufacturer of the tire. Once we have that information, we contact the manufacturer of the new tire, and get the revs per mile specification for their tire, and then change the revs per mile spec in the powertrain program to match the new tire size, if needed.
The best way to get as much as you can out of a used Superchip is to list it for sale in the Classified Ads section, as there are people who are looking for bargains there. A used Superchip is a bargain for the buyer if it's computer code already matches the code of their vehicle, so they don't have to pay to have it reprogrammed. And in that case, it can indeed be a very good deal for both parties. You can list it for sale in the F-150 Online Classified Ads free, just click on the link on the left side of your screen that says "Classifieds" and it'll take you right there.
Please give us a call to go over the speedo correction issue in more detail if you like, such as how we do that, the cost, the logistics, timeframe, etc., & have a great weekend!
Starting in the 1999 model year in the F-150, the way to recalibrate the speedometer is in the powertrain program (meaning a change in the Superchip's program), and that does need to be done for either a gear ratio change or a tire size change. If there is a difference in the height (circumference, actually, but we refer to the height in practical terms) between the original tires and the new tires, then your speedometer and odometer will be off, & depending on just how much difference in height, youy can have shift point issues in the automatics.
You'll need to find out what the difference in height actually is between the tires, first. Additionally, the P-metric sizing is not necessarily dead-on accurate, so we *never* go by tire size alone when making those corrections. The way that is controlled is by the revs per mile spec in the powertrain program, every tire has a revs per mile spec from it's manufacturer, and that is what is entered into the powertrain program in 1999 & up F-150's to correct the speedometer.
When someone comes to us and wants us to correct their speedometer, we'll send them our custom program worksheet by email or FAX, and in one area of the form we ask for the before & after tire size and the manufacturer of the tire. Once we have that information, we contact the manufacturer of the new tire, and get the revs per mile specification for their tire, and then change the revs per mile spec in the powertrain program to match the new tire size, if needed.
The best way to get as much as you can out of a used Superchip is to list it for sale in the Classified Ads section, as there are people who are looking for bargains there. A used Superchip is a bargain for the buyer if it's computer code already matches the code of their vehicle, so they don't have to pay to have it reprogrammed. And in that case, it can indeed be a very good deal for both parties. You can list it for sale in the F-150 Online Classified Ads free, just click on the link on the left side of your screen that says "Classifieds" and it'll take you right there.
Please give us a call to go over the speedo correction issue in more detail if you like, such as how we do that, the cost, the logistics, timeframe, etc., & have a great weekend!