another tire thread, seeking advice/input Options

[brant]

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]

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