Hoosier Sidewall Deflection Picture
08-17-2009, 09:57 AM
#61
Race Director
Member Since: May 1999
Location: Plymouth MI Formerly Milford, MA MI
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W. Detroit Events Coordinator
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VII Autocross Champ
I once overheard a certain T1 driver tells someone to start with those very low Pressures and the Hosier guy was standing right there and said I wouldn't recommend that for him because he doesn't have your tire budget and is running a narrower tire. I asked him about it and he said if you are running a wide tire like on a Vette or Viper you can get away with low pressures but the tire will be junk after (keep that in mind with buying scrubs).
So yes T1 guys do run very low pressures, I did go out by mistake last month and came back in and I had a front that had only 12 psi hot :o so it will stay on the rim.
On another note this is for you John I beat the Official TTS track record by over a second on Sunday (Mid Ohio) and I went out with cold tire pressures of close to 30 and they were just about 40 psi hot. I set my 6th track record of the year and I normally run 32-36 hot and will run my A6 up to 14-16 heat cycles
So yes T1 guys do run very low pressures, I did go out by mistake last month and came back in and I had a front that had only 12 psi hot :o so it will stay on the rim.
On another note this is for you John I beat the Official TTS track record by over a second on Sunday (Mid Ohio) and I went out with cold tire pressures of close to 30 and they were just about 40 psi hot. I set my 6th track record of the year and I normally run 32-36 hot and will run my A6 up to 14-16 heat cycles
08-17-2009, 05:37 PM
#63
Team Owner
I once overheard a certain T1 driver tells someone to start with those very low Pressures and the Hosier guy was standing right there and said I wouldn't recommend that for him because he doesn't have your tire budget and is running a narrower tire. I asked him about it and he said if you are running a wide tire like on a Vette or Viper you can get away with low pressures but the tire will be junk after (keep that in mind with buying scrubs).
So yes T1 guys do run very low pressures, I did go out by mistake last month and came back in and I had a front that had only 12 psi hot :o so it will stay on the rim.
On another note this is for you John I beat the Official TTS track record by over a second on Sunday (Mid Ohio) and I went out with cold tire pressures of close to 30 and they were just about 40 psi hot. I set my 6th track record of the year and I normally run 32-36 hot and will run my A6 up to 14-16 heat cycles
So yes T1 guys do run very low pressures, I did go out by mistake last month and came back in and I had a front that had only 12 psi hot :o so it will stay on the rim.
On another note this is for you John I beat the Official TTS track record by over a second on Sunday (Mid Ohio) and I went out with cold tire pressures of close to 30 and they were just about 40 psi hot. I set my 6th track record of the year and I normally run 32-36 hot and will run my A6 up to 14-16 heat cycles
08-17-2009, 06:34 PM
#65
Team Owner
08-17-2009, 06:37 PM
#66
Team Owner
In Jan, 2009 at ACS (formerly California Speeday) all 3 T-1 drivers were under the old track record. All on A6 and starting under 20 lb. I had the record at the end of Saturday afternoon's regional race (1:48.0xx from the old 1:48.4xx)...as well as a bent rt rr toe adjuster from a visit with the tire barrier.
I knew I could still have been faster since my in-car lap-timer showed a 1:47.6xx best lap. Personal beacons at this track are placed in the infield, far from start/finish, so I just put the wrong two half-laps together, compared to official T&S. On Sunday morning Ryan and Oli went out in the national race and both went well under my approx. 18-hour old record. Oli doing a 1:47.2xx and Ryan coming away with the record at 1:47.0xx.
08-17-2009, 08:18 PM
#68
Burning Brakes
08-17-2009, 08:28 PM
#69
Burning Brakes
Exactly. This is why the Miata comments are useless in this thread. And autocrossing is a whole different game than being on a road course, and TT is somewhat different than W2W. BTW, I run somewhere between 11 and 14 lbs when autocrossing. Really. I am NOT kidding. Did I mention that is in a shifter kart? 
Agree on the HPDE comments.
If we had limitless resources we would do our own thorough testing and perhaps be doing something very different.
Near 30 cold and 40 hot I could see even on my car. For the average guy running HPDE I don't think they want to toast the tires in two 20 minute sessions. That is for someone racing where you win by a foot or less. Still don't see myself at 20 or even 25.
If we had limitless resources we would do our own thorough testing and perhaps be doing something very different.
08-17-2009, 08:30 PM
#70
Team Owner
Thanks
Curious can you shield tie rod ends or is that not allowed? What else in the class this year as far as cars? I guess that spindle is the approved part or anyones can be used?
08-17-2009, 08:43 PM
#71
Burning Brakes
Not sure what the 2nd question means.
The hub can be factory/aftermarket replacement type or the new SKF hub (designed after the ZR1 hub) which was just approved in 2009. I have a set sitting in a box.
08-18-2009, 12:29 PM
#75
Melting Slicks
Exactly. This is why the Miata comments are useless in this thread. And autocrossing is a whole different game than being on a road course, and TT is somewhat different than W2W. BTW, I run somewhere between 11 and 14 lbs when autocrossing. Really. I am NOT kidding. Did I mention that is in a shifter kart?
Agree on the HPDE comments.
If we had limitless resources we would do our own thorough testing and perhaps be doing something very different.
Agree on the HPDE comments.
If we had limitless resources we would do our own thorough testing and perhaps be doing something very different.
I got you beat Steve, 12/13 racing on track!
in my formula ford
08-18-2009, 03:05 PM
#76
Team Owner
thanks
guess they are finally making better racing by allowing up grades that don't cost a bunch but help a lot..
08-19-2009, 01:06 AM
#77
Burning Brakes
The also allowed us to run the regular C6 front calipers which supposedly last longer. They use same pad as C5.
.
.
08-19-2009, 02:31 AM
#78
Drifting
http://store.quantummotorsports.com/...th=12_26_27_31
I submitted these to the CRB for consideration......should hear this month in the FASTRACK whether or not it has been approved......
I submitted these to the CRB for consideration......should hear this month in the FASTRACK whether or not it has been approved......
08-19-2009, 04:52 AM
#79
Racer
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[QUOTE=Bimota Guy;1571173780]Exactly. This is why the Miata comments are useless in this thread. And autocrossing is a whole different game than being on a road course, and TT is somewhat different than W2W.
Whether I'm in the miata, C4, or Z06 the principles and physics are the same. I think setup affects how much tire pressure is required, whether the car is setup loose. And fortunately the timer doesn't give an opinion, just the facts.
Whether I'm in the miata, C4, or Z06 the principles and physics are the same. I think setup affects how much tire pressure is required, whether the car is setup loose. And fortunately the timer doesn't give an opinion, just the facts.
08-19-2009, 11:58 AM
#80
Melting Slicks
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so youre saying talking about how much pressure a miata starts with is relevant to this discussion?