1987 ITS RX-7
2014 Ford Focus ST
Currently borrowing tow vehicles!!
Central Carolina Region
STEELERS SIX PACK!!
I am a bit confused.. I never said that the RA-1 or the R888 set track records in any IT class. Neither one of the tires from my understanding and from the TOYO rep are as fast as the Hoosiers and possilby Hankooks, Kumhos. They did however sset track records in spec series that are required to run them (speed touring, speed GT, SM, etc...)
Track Speed Motorsports
http://www.trackspeedmotorsports.com/
Steven Ulbrik (engineer/crew/driver)
[email protected]
The only point I was making is that they can be almost as fast, depends on car, driver and setup. At my last weekend out an ITA civic on Toyo RA-1's set a new track record at Beaverun of about 1 second faster than the old track record set by a very good driver/car combo in a ITA crx. That same ITA crx holds the ITA record at Nelson Ledges, at both tracks he was running Hoosiers.
1987 ITS RX-7
2014 Ford Focus ST
Currently borrowing tow vehicles!!
Central Carolina Region
STEELERS SIX PACK!!
This is my experience. I am faster on Hoosiers and Kumhos than on RA1's. I have never run Hankooks personally, but a Civic that competes with me runs them and he is as quick as me on Kumhos.
I think the story is a little different for Miatas, but I have no experience. Maybe ITA Miata drivers could tell you if they are any faster on Hoosiers, Kumhos, Hankooks, etc. than RA1s or R888s.
Jared Cromas
2012-2010 & 2008 Midwestern Council ITA Champion
2008 Midwestern Council Driver of the Year
SCSCC Race Steward
#111 FP/ST '90 Gold/Blk Acura Integra
***the R888 is a faster tire if you know how to set it up, but ohh well.***
Dude, I'm all ears. We have completed 6 nationals using 4 sets of R888's with considerable testing. To what we think is correct, what Toyo thinks is correct, to what others think is correct & the friken tires do no equal the RA1's............................... The work very well on cars heaver than the Spec Miata.
Lay it on me, because we are heading to Road America tomorow for more testing & a National race.
EDIT: This is a front of the pack car.
Have Fun ; )
David Dewhurst
CenDiv Milwaukee Region
Spec Miata #14
I have no info for the SM community explicitly.. I have heard of all sorts of the possible solutions..
The Toyo rep said less camber, and caster than the RA-1 will get you in the right direction.
I spoke extensively with a Tri-point and Realtime engineer and they seemed to agree with the Rep's statement. Both engineers weren't too excited about the tire either. both cars are quite a bit heavier than an SM. They also swapped out tires after each session on track.
A broad comparison between a Touring car and a SM. The Touring cars are heavier, and have more power thusly you can assume that they load the tire to a much greater extent than an SM. I think we can agree on that..
So how do we load the tire more... I have some ideas.. you would have to have quite a bit of data.. I have heard people running cold pressures as almost as high as their hot pressures and seeing significant gains, while others tired it and shown negative effects. Others played with tire temps across the tire. Some believe that it should be a bit with a slight emphasis on the inside, however to much (campber) causes the tire to just overheat and start a horrible wear situation.
Like I said.. everyone is looking for the golden ticket. What I do know is that records have been set with the tires, HOWEVER it may be more of a sign of the total package than the tires themselves.
Track Speed Motorsports
http://www.trackspeedmotorsports.com/
Steven Ulbrik (engineer/crew/driver)
[email protected]
There is nothing faster than the Hoosier.
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