Hoosier tire on rim slippage
Posted 05-21-2012 09:35 AM
Obviously this throws the balance off. With the Toyos this never happened. Anything that can be done to prevent this at time of install? Anybody getting this on the TR mototrsports rims?
Seems silly to be balancing tires every couple sessions, so looking for any suggestions. thanks
Posted 05-21-2012 09:48 AM
East Street Auto Parts
800 700 9080
Posted 05-21-2012 09:54 AM
Advanced Autosports, the nations most complete Spec Miata shop
Author, Spec Miata Constructors Guide, version 1 and 2.0
Building Championship winning cars since 1995
4 time Central Division Spec Miata Champion car builder 2012-2013-2014-2017
Back to Back June Sprints Spec Miata 1-2 finishes 2016 and 2017
5 time June Sprints winner in Mazda's
6 Time Northern Conference Champion Car Builder
2014 SCCA Majors National point Champion car builder
2014 SCCA Runoffs winner, T4 (Bender)
2014 Central Division Champion, ITS (Wheeler)
2013 Thunderhill 25 hour winning crew chief
2007 June Sprints winner, (GT1, Mohrhauser)
Over 200 race wins and counting.
Posted 05-21-2012 10:01 AM
If your really bothered by it and cannot overcome it by the water only and dry it good, mounting method, you can get the tire mounted with balancing beads that they put in the tire which always find the the right spot to keep the tire in balance. It works.
SCCA Ohio Valley Region
Chairman, SCCA Great Lakes Divisional Series Committee.
Posted 05-21-2012 11:16 AM
Most of the slippage occurs under breaking, to check if your tires are slipping simply put a chalk mark (a line) by the valve stem and pay attention if it moves away.
You would be amazed to see how much slippage occurs on all tires. I have found many wheels that have too big tolerances in the outer rim that cause this problem as well!
thanks for the quick responses, now to convince the tire installer
Joe Jordan the turd.....Joey is IV or quatro!
Ran in Firestone Firehawk in a Miata in 1994
Speedvision Cup Miata's 95-99
World Challenge Miata in 2000 AT MRLS
Had 3 Rookie of the year winners "Rising Stars" In IMSA
Kids now racing...Started them in Lemons Miata we built into the 2013 Western Division SCCA Majors Champion!
6th at 50th SCCA Runoffs in SM OPM's Rental 01
2nd fastest race lap at the Runoffs.
2014 Teen Mazda Challenge (west) Champ!
2015 Pirelli World Challenge Round 15 Winner in TCB and round 16,17,and 18 Winner!
Posted 05-21-2012 12:12 PM
Posted 05-21-2012 01:03 PM
I am not sure how you would go about mounting the Hoosiers up with out at least some tire grease. I use a pretty minimal amount and it can sometimes be tough to get the bead to seat (will hold pressure, just won't pop). I would think it would be almost impossible dry.
Doing IT dry is never a good idea.
There is your PRP humor for the day.
Posted 05-21-2012 03:38 PM
Kentcarter the only reason I found this out is cause after I rotated the tires initially the whole car was shaking like crazy over 80mph. Then I rebalanced and marked the valve stem location like mentioned above. Its amazing to me how much these things get twisted.
Posted 05-21-2012 09:00 PM
Posted 05-22-2012 09:46 AM
This is NOT a major issue and certainly not an SCCA issue. Many solutions were noted above, or if your not satisfied, call Hoosier directly.
Maybe we should ask the federal government to get involved. If there is a safety issue with the tires slipping and vibrating shouldn't the NTSB have oversight? After suspending racing on all tires for 2 years to determine if in fact this is an industry wide problem or just an isolated installation incident we could have a new 1000 page document outlining a plan of action that would be implemented over the following decade which accorrding to the OMB could save the country thousands of dollars in lost productivity if the projections are correct.
Or we could just say F'CK IT and go race a great spec tire that is highly predictable across a broad range of track conditions.
Posted 05-22-2012 11:04 AM
From reading this thread info the issue seems to be the tire. Has the SCCA requested a documented solution from the tire manufacture?
What! How about a little leg work yourself. This is not unique to SM, SCCA or Hoosier.
Stan's Auto Center, Lafayette LA
East Street Racing, Memphis TN
2003 Spec Miata
Posted 05-22-2012 01:10 PM
What! How about a little leg work yourself.
Post #1. F & R tires sliping on the rims.
Post #2. Very common, it's not the wheels, it's the tires, dry, dry,dry.
Post #3. It's not the rims, it's the tires.
Post #4. I had slip in GT3 & have it now in SM.
Post #5. Now convince the tire installer.
Post #6. These things are a bitch to mount even gooey.
Post #7. Ask the installer to wipe the bead area down before they air it up.
Post #8. I use a pretty minimal amount and it can sometimes be tough to get the bead to seat (will hold pressure, just won't pop).
Post #11. Enkei uses "special" paint and I've seen this roulette pattern.
Post #12. Track tire guy, try alcohol (as in rubbing) - but you got to be fast.
Post #13. I guess you are not dealing with an on track vendor. They all know about this issue.
Post #14. Has the SCCA requested a documented solution from the tire manufacture?
The SCCA are the people that signed the tire contract, correct. If you have an issue with your crawfish do you go the the cattle rancher to solve the issue. If you were to do the same leg work that I did you would get the same answer I did.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users