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Aftermarket TPMS

 
Old 04-15-2013, 01:12 PM
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Default Aftermarket TPMS

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Can anyone recommend a good TPMS, preferably that can work with two sets of wheels without swapping, or is very easily transferred?
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Old 04-15-2013, 02:19 PM
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For the race car? Stock system or you want to put a system in?
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Old 04-15-2013, 02:37 PM
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Yes race car. I would like to add a system. I don't have a stock one.
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Old 04-15-2013, 02:56 PM
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I've seen some gadget in Grassroots, in which the valve caps monitor the pressure and send a signal to a dash unit that gives you a readout. Is that thing for real?
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Old 04-15-2013, 03:33 PM
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This is what people are using now http://www.stackltd.com/tpms.html. I believe it's around $2,500.
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Old 04-15-2013, 04:02 PM
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Originally Posted by Matt Romanowski View Post
This is what people are using now http://www.stackltd.com/tpms.html. I believe it's around $2,500.
A little more than that, but it's the only TPMS system I recommend. It's what is on a historic racing Audi R8 LMP...
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Old 04-15-2013, 06:26 PM
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Hmm, don't want it that bad. Just wanted it for time trials to see when tires are up to temp as I'm moving to slicks from DOT's. I will get a feel for it, but thought it would make the transition easier to be able to see when I can step on it. Will be a challenge to make the slicks work.
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Old 04-15-2013, 06:34 PM
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Tread temp and tire temp resulting in a pressure rise are different.

The former builds much quicker than the latter. You will gather a feel for it, but there are very specific techniques to build usable (as opposed to topical (or tread)) temp, quickly.

Just not sure you would see what you're looking for on a TPMS unless you get an even higher end unit than the Stack "Lite" version (the $2800 unit) or, better yet, I would recommend the use of IR sensors for the tread temp.

Believe me, the delta in the coefficient of friction between a slick NOT YET to operating temp versus one AT OR NEAR operating temp, it's much more obvious when that happens on slicks than on R-comps...
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