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| Tires for carpet https://setup.teamxray.com/xsetup/legacy/viewtopic.php?f=8&t=251 |
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| Author: | Big Jimmy G [ Mon Oct 11, 2004 22:19:46 ] |
| Post subject: | Tires for carpet |
Hi Guys, I'm after some thoughts and advice for which tires to run on smallish indoor carpet tracks. I currently run at two clubs. One has a track about 12 x 20m. They do not allow the use of tire cleaners or additive, rubber tires only and stock motors. The other has a larger track (25 x 14m), again rubber tires and stock motors, but they allow additive. So far, I have got on best with the CS22 and CS 27 tires that come pre-glued with inserts. When I can use additive they go well, but the car understeers off power into the corners if I cannot use it (unless I use the brakes to turn in, then I spin!) I have tried Schumacher Carpet Dragons and hated them, similarly T27 and Pit slicks - for me they change grip too much as they heat up and the balance of the car goes to pot. I've seen some Sorrex 20R tires advertided on various sites and wondered if anyone has tried these, what inserts you used and how they go. The rest of my set up is:- Front 40 oil, 2 holes, white springs, kit spring positions. 1.5 degree kick up, 3 castor, 1.5 camber, one way diff. Middle camber link. 5.0mm ride height. Kit ackerman Rear 30 oil, 2 holes, white spring, middle shock tower holes. 0 anti-squat, 2.0 camber. Kit camber link 5.5mm ride height. Any help and advice much appreciated. James |
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| Author: | Tonyv [ Tue Oct 12, 2004 14:57:47 ] |
| Post subject: | |
| Author: | Big Jimmy G [ Tue Oct 12, 2004 19:25:47 ] |
| Post subject: | |
Hi Tony, Thanks for that. The inserts I am using are the blue moulded ones that come with the tires and rims. I buy a set of 4 all pre-glued so I don't get much choice of inserts. I think I can get the tires on their own tho, I'll look into it..... The standard inserts are labeled as "Medium" and feel very much like the Yokomo mediums (038M). I have some warmers and as far as I know they are not banned. I'll give them a go, especially as the weather will be getting colder over here. The car is a little better to drive in the second half of the race but still understeers too much off power into the corners for my liking. If I can get it to the apex and out of the corners it is fine. From what you said it looks as if it is a set up issue - any advice on what I can change? James |
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| Author: | Frans H [ Tue Oct 12, 2004 21:46:16 ] |
| Post subject: | |
| Author: | mattthegreat01 [ Wed Oct 13, 2004 02:38:47 ] |
| Post subject: | carpet tires |
| Author: | Tonyv [ Wed Oct 13, 2004 11:01:46 ] |
| Post subject: | |
Since you only have understeer off power you may want to try running less caster. This will give more steering into the corner, but will take some away mid-corner and exiting the corner. |
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| Author: | Big Jimmy G [ Wed Oct 13, 2004 20:31:27 ] |
| Post subject: | |
Again, thanks to all for the advice. I have a meeting at the larger track this coming Sunday. I have made a few changes to the set up posted above and will start the meeting with different roll centres and less kickup (0). If that has not solved the problem I will get messy with sock oils and piston holes and then take it from there. All advice is much appreciated. JAmes |
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