| Author | Message | ||
     Xoptimizedrsx |
I have a good supply of race takeoffs from road racing where I can split the cost on rears with a guy. These range from soft to medium grade. race use tires. They have 100% of the middle tread. I am wondering if anyone uses these or would even consider it. They only have usually 2 to 3 heat cycles on practice tires and 2 on the actual race takeoffs max. As far as that goes on the road race course its different on these brigstones made for the track they run 30 psi on heat running temp. Do you guys use a tire warmer or just rely on the burn out? Do you set the tire pressure cold or on temp? We set on temp before going out then adjust to the track after about 4 laps to get the final pressure for proper grip. from there we recheck as soon as the lights go off on the warmers. Thats that days track temp setting. we record the track temp,air temp, and tire pressure. make a log which makes it more easy to estimate the tire pressure needed for different conditions. Are you guys doing this? same thing goes for our fuel. darn weather messes with it going from sea level high humidity to other tracks dry and higher altitude. I don't remember seeing it effected on carburetors as much as this EFI. arghhhh on the street it good enough at the track you need every edge you can get. | ||
| Hybridmomentspass |
Dont know of any dragracers using tire warmers, just rely on the burnout. Metzeler RaceTec K2 tires, I love them Check and Adjusting tires when cold. | ||
| Xoptimizedrsx |
wonder if stabilizing the pressure on a warmer would help like it does at the road course? couldn't hurt I would think especially when I own two sets or warmers. I know cold pressure to hot pressure in some tires can change pressure as much as 10 psi. Been there done that. The rider was not a happy camper racing on 22 psi. Sad thing was on the warmer it was 32 psi. But, a very cold track and 50 deg air pulled the heat out of the tire, while dropping the pressure to 22 psi. It road like crap sliding all over the place and was a dog with no speed on the straights. This is just some first hand experience (not just once)with tire pressure and wondering how well the road race tire tricks can play on the drag strip. A nice warm tire is a sticky soft tire. It could syke out the guy beside you not realizing you didn't need a big burn out. mike (Message edited by xoptimizedrsx on May 15, 2010) | ||
| Mark_1 |
Shinko u-soft drag radial for me. I do adjust pressure depending on conditions. no tire warmers though  | ||
| Hybridmomentspass |
Xopti - again, too much downtime at the track. I dont know how long it'd take for the tires to cool down after being in warmers for so long, but I can say that at AHDRA races they call a class up about 20 minutes or so before its time to actually run. And that is if there isnt an oil down or accident etc. I've waited for close to an hour before in the staging lanes. As far as syking your opponent out - Im sure you could with that method, but hes probably not that good of a racer if so. I doubt anyone in the other lane has ever saw my burnout, and if so thought 'man that was a long/short burnout' I know I havent. Just my opinions from the races that I've been to. | ||
| Xoptimizedrsx |
I wonder if it would work on a low turn out night for test and tune days. it may help finding the optimal air pressure. then once it all cools down read the pressure and use that as the cold pressure. or just toss the whole idea... wont be the first time i tossed an idea... plus I cant go test any time soon school is first says the wife. no degree in hand no racing. | ||
| Hybridmomentspass |
Ditch the idea, it will have no consistency. Sure maybe on a really slow night you can time it where its the same time on the warmers and the same time to the line etc, but what happens if you have to wait an additional 5 minutes? What about ten? etc No consistency and thats one of the biggest things in dragracing. |
