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Discussion Starter · #1 ·
New tire on the way to try!!! After doing a painful amount of due diligence the Yokahama Advan A048 (265 35 18 Competition Tire) came up on top! The Michelin Pilot Sport is pretty good but not quite sticky enough for my purpose. The Advan has a racing compound and the construction to take the lateral forces (rated at 1461 lbs and is YR speed rated) associated with the HP and TQ the 540 Shafiroff makes :) . Hopefully, this tire will provide the ability to hook up as good as the Nitto Drag Radial without the propensity to shake me off the bike! :(

The tire evidently has pretty stiff sidewall construction because of the constant transition required from straight-line acceleration to the forces associated with cornering. The downside is the price :cus: but if it works—worth every penny as you guys know how I feel about smoking the tire and not hooking up! :cop2: Talked to Marv last week about it and he is very interested on how it works as well. Anyone seen any of these used at a Track Day event on a car?
 

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Hey Dave,

What's the likelihood of putting that much H.P. on the ground with this tire and twisting something in a stock 502?
 

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Discussion Starter · #3 ·
Redtro said:
Hey Dave,

What's the likelihood of putting that much H.P. on the ground with this tire and twisting something in a stock 502?
That is a good question that I don't really think anyone knows. I would not really worry as much with a stock 502 partly because of the carb that is on it. It is really pretty slow coming on compared to the mechanical types. That being said I would not worry about it but if you are thinking about doing this you will have to get a new wheel. No one makes any of the really good tires in 15 inch because of the high profile. The old no market for the tire so no one makes it story.
 

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Discussion Starter · #5 ·
Tire Info:

"The ADVAN A048 is Yokohama's DOT-Legal Competition tire designed for the drivers of vehicles who participate in autocross competition, track schools, lapping days and circuit-type club racing. The ADVAN A048 was developed from Yokohama racing technology for applications that include the 18-inch rim diameter fitments used on the Porsche 911, Porsche 911 Turbo, Porsche Boxster and others.

On the outside, the ADVAN A048 molds a race-ready compound that provides dry grip over a wide range of temperatures into a 6/32-inch deep, "single block" tread design that increases tread stiffness and features a wide center area that stays in continuous contact with the track to enhance cornering stability, on-center feel and steering response. As the tire's outer shoulder tread wears from hard cornering, the ADVAN A048's directional tread design and symmetric internal construction allows worn tires to be remounted "inside-out" on their wheels to help prolong their life. We suggest shaving ADVAN A048 tires to between 3/32" to 4/32" of tread depth for competitive road racing.

On the inside, the ADVAN A048 features twin steel belts that are reinforced with spirally wrapped nylon cap plies and belt edge strips. The belt package is placed on top of a rounded casing design that allows the tire to predictably handle transitions from straight-line travel to high g-force cornering and back.

Yokohama ADVAN A048 tires feature sidewall styling with subtle black letters. They are available in selected 40-, 35- and 30-series, Y-speed rated sizes for 18" diameter wheels."
 

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Discussion Starter · #6 ·
Advan A048 update----The tire does have promise but until I can burn off a little more of the tread and get it down to its running thickness and we have some warmer weather it hooks up about the same as the Michelin Pilot which was at its optimum running depth. I hope that this week the temps will be up in the upper 60’s and lower 70’s and I can get a better feel. Right now I can say that the 265 35 18 tracks straight as an arrow when making the white cloud of smoke :cop2: and has a slightly rounder and lower profile helping the handling quite a bit! For those of you who have the 9.5 inch x18 inch wheel this is the best tire I have found so far! :D
 
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