07-06-2014, 02:17 PM | #43 | |
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07-06-2014, 02:28 PM | #44 | |
Drives: 2013 camaro 2ss/rs dusk edition Join Date: Aug 2013
Location: florida
Posts: 446
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07-06-2014, 02:29 PM | #45 |
Yes a sensor can be cloned, but you need the number off the one that's in the tire you are changing. I do not want to break all the tires down. So I will just lure the new tire. It takes a more costly coning tool to do it. It's good for shops to do it, because it takes less time to clone than learn.
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07-06-2014, 05:18 PM | #46 | |
Runs with scissors...
Drives: '14 Z/28s SIM/SW Join Date: Jan 2013
Location: Austin, TX
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07-06-2014, 07:50 PM | #47 | |
Drives: BAC Mono Join Date: Apr 2013
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Ditto for me Tire temp on TPMS is the primary thing I watch when on track. Too high psi, I end the session. Oil temp I watch for curiosity knowing I'm going to get two indications (A/C cutoff, then a warning light) if it gets hot.
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2014 Z/28, White
"I wasn't asked to make it cheap...I was asked to make it FAST!" Mark Stielow, the new Z/28. |
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07-06-2014, 08:14 PM | #48 | |
Drives: 14 1LE Join Date: Mar 2013
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LMS Engineering
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07-07-2014, 07:59 AM | #49 |
corner barstool sitter
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I guess I have to assume that the TPMS pressure display really is sufficiently readable under at least some bright daylight conditions (the message panel on my car is not good enough for track driving use, even if I'm not wearing sunglasses, never mind that it doesn't feature an individual tire pressure display screen).
How accurate are the numbers it displays? Have people checked all of them against their own pressure gauges for a range of pressures? Pressure transducers are still mechanical in nature and thus subject to tolerances affecting accuracy . . . Norm |
07-07-2014, 08:22 AM | #50 | |
Drives: 14 Z/28 0# Join Date: May 2013
Location: NY
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you are right...I should have said better than the last 2 fast black cars I've had.
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07-07-2014, 10:54 AM | #51 | |
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LMS Engineering
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07-07-2014, 11:29 AM | #52 | |
Runs with scissors...
Drives: '14 Z/28s SIM/SW Join Date: Jan 2013
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I'd say it's within 1/2 a pound, based on my readings. I always cross-check pressures with a digital gauge that reads to .1 psi, and the TPMS readout always seemed close to those measurements...
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07-07-2014, 11:33 AM | #53 | |
Runs with scissors...
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I'll ask Zfat to confirm this, but I think -- in the high temps of Thunderhill -- that 27 psi cold resulted in 33 psi hot. Quite the swing, and one reason the TPMS readout is a handy tool...
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Last edited by brt3; 07-07-2014 at 12:24 PM. |
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07-07-2014, 12:02 PM | #54 |
I have found that a hand gauge and the DIC are very close. If they are within 1/2 lb then that's fine for 20 to 40lbs. Need closer for low 5 to 20 lbs.
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07-07-2014, 01:57 PM | #55 | |
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Location: Spokane, WA
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For example I set my tires at 26 when I get to the track, after a couple warm up laps I hit it hard for 20-30 minutes. It usually puts me around 33 psi. I will adjust if needed for the given conditions that day, but after that first run I'm usually set for the rest of the day. I guess I'm just wondering why it needs monitoring during the session. Unless it's just curiosity cause I understand that too.
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07-07-2014, 02:31 PM | #56 | |
Runs with scissors...
Drives: '14 Z/28s SIM/SW Join Date: Jan 2013
Location: Austin, TX
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After driving at Thunderhill, I believe the sweet spot is 32-34 psi. There was a tire expert, Guy Gamba, who was at the track measuring tread temps and pressures. He knows the Trofeo R very well, and thought the optimal pressure was 32 psi. I'm a little less positive about that, as his guys waited about 8-10 minutes -- after I was parked at their temporary "shop" -- to check temps and pressures...
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