another tire thread, seeking advice/input |
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another tire thread, seeking advice/input |
brant |
Jan 4 2016, 02:26 PM
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#1
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914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
so the last time I attended an SVRA event I took some aged out toyo's (RA1's) that I've owned for a few years...
they were as bad as I expected and put a taint' on the weekend I'm used to driving on hoosiers A6/A7 and realize that I'm not going to get anywhere close to that level of grip from aged out toyo's so I'm working on my summer schedule and planning for this year I think I will attend another SVRA event or two and will buy fresh tires this time around the approved list is below: I will shave the new set my experience (recent) has really all been with the hoosier radials that are not allowed I'm aware I may need to make some alignment changes with a bias ply, but ultimately I want the fastest tire so will take steps as needed. I would love feedback from anyone that has done testing or driven multiple brands of tires on the approved list ultimately, I'd like to buy a set of the stickiest tires I can I noticed that many of the racers were running the RA1's and hoosier vintage tires I assume these are probably the 2 fastest options but would love feedback from anyone as I plan for the summer thanks in advance ------------------- Approved tires: Avon: ACB10, CR6ZZ Goodyear: Blue Streak BFG: g- Force Sport Hankook Ventus RS2, RS3-V2, Z213, Z207 BFG: g-Force RIVAL Bridgstone: RE 11 Toyo: RA1, R888, R1R Dunlop: Direza Sport Z1, Z11 or Z11-Star Hoosier: Street TD & Speedster Yokohama: A032, A048 Falken: RT615 Kumho : V700, ECSTA XS Nitto: NT01 (minimum 3/32” tread depth) Specifically Prohibited for all Group 6: Slicks or any of the following tires: Avon Tech RA, Avon ZZR, ZZS or CR500, BFG G-Force R1, Goodyear GS/CS/RS, Hankook Z214, Hoosier DOT Radial, (A6, R6, R7 or SM7), Kumho V710, Toyo RR, or any other “street slick” type DOT tire. |
JKW |
Jan 9 2016, 04:32 PM
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#2
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Newbie Group: Members Posts: 31 Joined: 11-April 10 From: Oakland, California USA Member No.: 11,598 Region Association: Northern California |
I've been using the Hoosier Street TD*S tires on my 2 liter 914/6 GT (2240 pounds wet without driver) for the past few years with 7 & 8 x 15" wheels and they are a pretty fast bias tire (1:48 @ Laguna) and look pretty vintage correct both in tread and sidewall. I start at 19 pounds cold typically get them up to 24-25 lbs hot. They've been quite durable but do gradually lose their stickiness after a few typical weekends.
I've also used the R6 tire (225/50-15 on 8" wheels at all 4 corners) at Sears Point and it is probably 2 seconds faster than the TD*S per lap, but has the typical radial fast break away issue and is not really period correct. Same durability as the TD*S. In the past I used the Goodyear Blue streaks which weren't as fast as the TD*S tire and they don't have the right sizes any more. Jon |
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