 Goodyear Answers My Cantilever Slick Questions, I did some homework on rim width alternatives |
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| john rogers |
 May 24 2006, 01:54 PM
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#21
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Senior Member  Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391  |
The car weighs 2200# ready to race with a full tank of gas and me. As noted, I run zero toe or a very slight (1/32 inch) toe in on tracks like CA Speedway or Willow Springs which are very high speed.
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| nine14cats |
May 24 2006, 02:02 PM
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#22
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Hi Kevin,
The spec class I've built the 911 to run in has the R600 tires in the sizes 23.5x10.05x16 for fronts and 25x13x16 for the rear. On the track several of us running the class are getting used to the spec compound and playing around with tire pressure. It appears that several of us have found that we are getting faster laps by running ~27lbs hot. I had been running at 24lbs hot. For AX I cannot get the 23.5x10x16 in the R250 compound, so I went with the 23.5x11.5x16 tires. Due to the weight bias and such, I definitely get more heat in the rears than in the fronts at an AX. I'll be playing with the tire pressures next time I'm out at an AX. I try the tires with more pressure. Bill P. |
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| groot |
May 24 2006, 06:56 PM
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#23
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Dis member Group: Members Posts: 894 Joined: 17-December 03 From: Michigan Member No.: 1,444 |
Cool deal, Bill,
I'll try a session this weekend with the goal of 27 psi hot to see how it works on my tires. I'm sure the construction of the tires differs, but it's worth a try. |
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| nine14cats |
May 30 2006, 02:10 AM
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#24
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Hi Kevin,
How did the slicks feel and perform at 27lbs? Bill P. |
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| Joe Ricard |
Sep 21 2006, 07:45 PM
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#25
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
OK this was not a good idea.
My new /used canti slicks 23 x 9 x 15 R600 stiff fuckin sidewall tiars DO NOT FIT on an 8.5 inch rim. No way no how. there was three of us wrestling that son of a bitch and could not get the bead to stretch out enough to fill up with air. We had3 ratchet straps to the point thetire face was crumpling. it was almost there and then the tire started to get out of round and got worse Doug, what rims did you run these on? Then it gets real damn funny We can not get the damn tire off the rim. What's the secret for that???????????? could not get the tire iron to lift the bead back up on the machine ramp. If I do get it off I will have to do a major swap around and put the canti slicks on the diamond 8" rims and my Hankook RS2 on the centerline rims to get back and forth on. |
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| Joe Ricard |
Sep 22 2006, 09:20 AM
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#26
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
Whew, got the tire off. Went down to the "hood" where 20" stiff side walls ain't no big deal.
THe guy threw the rim on his monster machine and with a mighty heave ho the tire came up on the ramp horn of the machine. Wha la back to where I started. Now got to get the A3S04 Ho's pulled off the diamond rims and the slicks put on. Ain't racing fun? |
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| J P Stein |
Sep 22 2006, 10:38 AM
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#27
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
How'za about a pic of the 8.75 rim......cross section of the bead seating surface...so's we all know what won't work (IMG:style_emoticons/default/biggrin.gif)
As I said, the cantis went on my 8 inch Fuch like they were made for em'. |
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| Joe Ricard |
Sep 22 2006, 11:01 AM
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#28
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
OK so my numb fingers don't work so good.
the rim is 8.5" wide, These are Centerlines The back / inside section of the bead is more of a ramp than a bead bump. there is a bump but it is small. There was nearly exactly a 1/2" that the tire bead could wobble back and forth between the two rim bumps. I'll get the tires mounted on the diamond rims tomorrow. I'm too tired to process a picture. I got Derek Kim coming over in a bit. We are hoppin up his hoopdie. |
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| Joe Ricard |
Sep 23 2006, 03:22 PM
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#29
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
OK that was easy. 8" Diamond Racing rims. Went on like snot on a door knob.
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| Thorshammer |
Oct 3 2006, 08:48 PM
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#30
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Senior Member Group: Members Posts: 749 Joined: 11-November 03 Member No.: 1,335 |
I also run the goodyears on the required 15x7 inch rims. I run .75 degree of camber in the front. .75 in the rear, with 1/32 toe in in the rear, and 1/32 toe out in the front. Erik Madsen |
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| grantsfo |
Oct 3 2006, 09:19 PM
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#31
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Arrrrhhhh! Group: Members Posts: 4,327 Joined: 16-March 03 Member No.: 433 Region Association: None |
QUOTE(Joe Ricard @ Sep 23 2006, 02:22 PM)  OK that was easy. 8" Diamond Racing rims. Went on like snot on a door knob. (IMG:http://www.pcmtl.com/public/misc/TTIWWOP.gif) |
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