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Old 09-03-2005, 09:48 AM   #1
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Default Rubber Tyres for Nitro

Anyone using Rubber for Nitro Cars?

Was thinking of trying Sorex 20R or 24R.... any suggestions?

the track i frequent has a rather oily surface, prob due to years of nitro...
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Old 09-03-2005, 11:11 AM   #2
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I ran the take off pre mounted 32`s, they were pretty good.
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Old 09-03-2005, 01:24 PM   #3
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Sorex 20'a and 24's will heat up too fast and you'll lose traction. Try any tire that is 32 and above. Try CS-32's or CS-37's. If you can find them, try some pit shimizu 36's with xenon gray inserts. They are dialed for nitro sedan. Goodluck.
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Old 09-03-2005, 03:56 PM   #4
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We run rubbers on Nitro all teh time mainly because the main track I race at is a concrete surface and foams don't work on that to well. We are now using rubbers at the tarmac track as well. Most common tyre chosen is the Sorex 36 and I personally use their B medium insert - works well.
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Old 09-03-2005, 07:11 PM   #5
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i'm using cs-27's on pretty slippery concrete. they work pretty well
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Old 09-03-2005, 08:54 PM   #6
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Just be sure to use lots of traction compound. I basically sit my tires in a zip lock bag overnight before a race in after-run oil or tire tweak. This helps the tires become super plyable and sticky. Then apply some traction compound for ultimate stick.
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Old 09-03-2005, 09:10 PM   #7
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but will rubber work on oily surfaces?

So am i right by saying the lower numbers 20-28, have higher initial traction, but lose traction faster when they heat up, while higher ones like 30-26 have lower initial traction, but wont lose much traction when they heat up?
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Old 09-04-2005, 12:16 AM   #8
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Quote:
Originally Posted by Dragon
but will rubber work on oily surfaces?
They sure will. Just apply some paragon on front and rear tyres and you'll be dialed. I practiced on a fairly oily surface that alot of nitro sedans raced on and my MTX-3 was on rails
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Old 09-04-2005, 01:17 AM   #9
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Ummm... Paragon?
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Old 09-04-2005, 07:34 AM   #10
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U can also polish the tyre using WD40 to get more traction. cheaper n easy. this is what the EP guys did
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Old 09-04-2005, 11:17 AM   #11
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Why don't you use sponge tires for more performance or economical reason ?

For Singapore's climate I think Sorex 40 with Hard / Medium inserts.
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Old 09-04-2005, 09:08 PM   #12
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umm, why would foams give more performance?

I find rubber last longer, and have more constant performance...

however, am i right by saying that the lower numbers 20-28, have higher initial traction, but lose traction faster when they heat up, while higher ones like 30-26 have lower initial traction, but wont lose much traction when they heat up?
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Old 09-04-2005, 09:29 PM   #13
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Quote:
Originally Posted by Dragon
umm, why would foams give more performance?

I find rubber last longer, and have more constant performance...

however, am i right by saying that the lower numbers 20-28, have higher initial traction, but lose traction faster when they heat up, while higher ones like 30-26 have lower initial traction, but wont lose much traction when they heat up?
Rubbers dont last longer for me! I was using a new set per day! If you have the car set up properly, you can use 1 set of foams for 2 days in parking lots. On a prepared surface you can run them for a lot of fuel runs. At the Nats last year we ran the tires starting at 57mm. and they lasted for 1 hour mains.
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Old 09-04-2005, 11:49 PM   #14
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Have you ever try foams tires ? Give it a try and you will appreciate it. Here is why :

1. No gluing -- c.a glue sux
2. More grip : for singapore climate 37 shore and 40 shore or combination.
3. definetely last longer than rubber.

BTW...... do you know how long is final with rubber tires ? With foam tires I have 45 - 60 minutes Finals.
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Old 09-05-2005, 12:14 AM   #15
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foam has disavantages too.

needs trueing
chunks
car is generally dirtier afterwards



and for grip,on a painted tennis court,use foams and see how you go.
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