Swapping wheels at the track?
My experience with just swapping 2 wheels to a set with no sensors is that the car will know immediately that it's getting signals from your 2 front sensors and that the 2 rear sensors are not checking in. It will give you a DIC message "Service Tire Monitor" and "Limit Speed to 55mph". During hard acceleration or aggressive cornering it may pull power to slow you down (the so-called "limp mode"). I believe you'll be able to turn off TC, but not AH, but for drag racing you don't want to disable AH anyway.
So.....I think the only problem you might experience is a couple of DIC messages that you should be able to clear. Some people have reported that during hard acceleration the car pulls power (limp mode), but you may not have that problem - you'll just have to try it and see. You may not be able to go into Comp mode or turn AH off completely, but you don't want to do that anyway - you want AH on and just disable TC, and I don't think you'll have any problem doing that.
The TPMS problems you might encounter will not "throw a light". There are no codes or CEL associated with TPMS/sensor problems. I believe all the problems you might have are strictly related to DIC messages and the AH system, so even if you do get messages you can clear them.
When you put your original wheels/tires/sensors back on the car it will act as if they were never off. The sensors will report to the TPMS and you won't have to "reset", "scan", or "clear" anything.
Have fun at the track, and let us know how the car acted and how you did!
Bob
Good Luck and get that 11 second pass.
You will have to turn traction control off, unless the drag radials are very similar in height to the stockers, as it will think the rear is spinning and will activate traction control. I always take traction control off to run at the track anyway.
Put em on and run it hard!!
Daren
Last edited by 06C6FVR; Feb 23, 2008 at 03:53 PM.
Once it comes up I have to clear it each time I start the car or until I park near the stock wheels (you have to do thing the right order to be able put it comp mode)
Not a problem just a PIA I hwould not waste the money on extra sensors or a reset tool, there is no need IMO.
The Best of Corvette for Corvette Enthusiasts
You will have to turn traction control off, unless the drag radials are very similar in height to the stockers, as it will think the rear is spinning and will activate traction control. I always take traction control off to run at the track anyway.
Put em on and run it hard!!
Daren
So.....I think the only problem you might experience is a couple of DIC messages that you should be able to clear. Some people have reported that during hard acceleration the car pulls power (limp mode), but you may not have that problem - you'll just have to try it and see. You may not be able to go into Comp mode or turn AH off completely, but you don't want to do that anyway - you want AH on and just disable TC, and I don't think you'll have any problem doing that.
For me, I had no problems until I hit 60 mph + with my drag radial test (no rear sensors) on the freeway and then it went into limp mode with AH enabled. I got out of it by hitting the TC button. Still, I decided not to take any chances on the strip and made myself an air filled cannister containing 2 sensors that fits in the trunk cubbyhole. I leave my oem wheels at home and still the computer thinks I got 2 rear tires with sensors at 30 lbs pressure wherever I go.
Last edited by siffert; Feb 23, 2008 at 08:03 PM.
Also what pressure should i run in the dr,s? I will put them on and then drive to the track, so they will be warm. And one more thing, how big of a burn out should i do to heat the tires? A really big one , or just a small one?
Also what pressure should i run in the dr,s? I will put them on and then drive to the track, so they will be warm. And one more thing, how big of a burn out should i do to heat the tires? A really big one , or just a small one?

My 06 went 1.72 to a 12.04 at 114
My 07 went 1.82 to a 12.134 @ 114
Almost same mods
Daren
Also what pressure should i run in the dr,s? I will put them on and then drive to the track, so they will be warm. And one more thing, how big of a burn out should i do to heat the tires? A really big one , or just a small one?

Remember we dont have a solid axle so we cant just lower the psi and get great 60's as our cars squat the outer edge makes less contact.
24psi seems to work the best
With my setup 295 BFG's I get 1.70-1.73's (A6) at 25 psi with a good 3 sec after smoke burnout on the button, NA they are slow.
My buddies bone stock 05 A4 with the tall gears picked up 2 seconds with a 150shot and ET streets 1.65 60' on the button. (same track same day)
My 06 went 1.72 to a 12.04 at 114
My 07 went 1.82 to a 12.134 @ 114
Almost same mods
Daren
Just to confirm... if you are running without (say) one TPMS, the DIC warns you, then if it limits/goes into limp mode, you turn off the TC and then it goes away?? is it that simple?
I am considering running road courses with all the TPMS on, but if I get a flat or a blowout, I would have one rear rim/full size tire with me to thrown on the car w/o a TPMS so I could "limp" home - does that sound feasible then?


















