jon

Shims do make sense. In theory they won't move, at least not as much as my camber bolts have anyway I presume you mean 997 GT3 RS, not a cup car? The scud, in theory is another level up from that so will be interesting to see if he eventually sells it when the GT3 is back I've a friend with a fantastic orange gt3 rs, and as much attention as it gets I don't think it could match the F car as such a raw "event" to drive (I've not driven a 430 yet.)

Shake that mans hand for me Tony I drove around the outside of the only Scud I've come across on track, but then if I'd invested 160k on a car like that I'm not sure I'd have the guts to drive it on the limit either! What are they like to setup? Shims again?

You sold him another tyre?! I don't know, garages these days. There was at least another 3000 miles in it

Do you sell the drift tyres that smoke in different colours? I believe Kumho sell them. Brilliant !

The running costs are rude.... The one in thread done his £1200 tyres in one day ...... £800 for front rear pads "per month" Tyres I can live with, but that's some hard brake wear. At least he must be using it properly, fair play to him

Tony, Of course, once it's published I'll point you in the right direction LBB, What do you feel is holding you back from getting to the limit of the current tyres? I'm a very experienced track driver, so just going around a track fast isn't a challenge any more. The semi slicks were fast and fun, but the car felt very 'safe' as there was so much grip. When I bolted on the road tyres in the afternoon, the car felt much more on a knife edge and driving it on the limit was much more challenging which I enjoyed more. If you're still getting used to driving the car hard on track, then a set of semi slicks will allow you to concentrate more on your lines and what's going on around you, rather than what direction the car is pointing in!

One thing I will mention, is the extra grip from semi slicks doesn't always mean extra fun. I've a big write up on it all waiting to be published, but to paraphrase: around donington park, a semi slick was worth about 3 seconds, but for me took a lot of the fun out of it. I back to backed Kumho V70a and Toyo T1rs, and I found the T1rs more fun. The car moved around more, and was more of a challange. If i was buying tyres, I wouldn't spend the extra money on semi slicks unless I was against the clock.

The 430 Scud is currently my dream car. I just can't find anything I don't like about them (apart from perhaps their daily manners )

That's an inventive cooling mod isn't it Tony?

I took a photo of it, only just realised what car it was!! That is stunning, though I didn't think they were designed to go round corners

Any downside there jon...... meaning is a "claimed to be quite" tyre historically quick wearing or other? Too many variables in the design to automatically say a quiet tyre doesn't grip/wear well etc. In my experience the only semi constant seems to be quiet tyres offer less feedback as the shoulders and walls are inherently softer to absorb noise.

Well at least have a vehicle code with an easy to reference database online! People are putting the GSD3's they designed for the fiat panda on jap modified cars and wondering why they're not as good as most people make out!! Agreed, but difficult to police.... I think if we hone into the area that fails it would be the tyre trade it's self, the customer shouldn't be expected to understand what compound/ silica code to ask for. Agreed. But the customers also shouldn't be going out buying a GSD3 because people are raving about then, ending up with one designed for a Fiat Panda with less grip, then left wondering just what their mates were talking about! I think we should change the world tony

Tyre noise largely comes from block design and compounding, so as Tony correctly pointed out, the quietest tyre is the one designed to be so.

Well at least have a vehicle code with an easy to reference database online! People are putting the GSD3's they designed for the fiat panda on jap modified cars and wondering why they're not as good as most people make out!!

1k's worth of tyres in one track session is a consideration..... The mich clubs we fitted today only have 2mm (inside/ outside) from new Why so low? Less block movement, though I always thought the standard Michelin Pilot Sport Cups had 4mm to start with (half normal tread depth). I don't like the 996 shape, I really must start saving my pennies to get a 997 GT3 RS Tony, what are they like to work on?

I think at last count there were about 8 different constructions of the GSD3. These have been tweaked for many car manufacturers to suit the vehicles, so there are some quite different feeling tyres running under the same brand. I've been moaning at the manufacturers for a while now to try and clear this up, make it more obvious so when we're buying tyres in the replacement market we know what we're getting. I can't see why they can't just write "Porsche" etc on the tyre somewhere to avoid the ambiguity...

Lotus sure know how to build them

Get some decent track pads on before you worry about the expense of new calipers. The stock brakes on my MR2 turbo can outbrake pretty much anything for a long ol' stint providing the right friction material is gripping the disk. The Honda OEM pads will be useless. Start with EBC yellow stuff and report back for some more advise

I guess they use shims as they're the least likely to move compared to camber bolts etc? If that is the case how did the front camber get out of alignment?!

Oh my a 599GTB :) How was she to setup? Dream car, I'd love to look over one properly

She's SORN at the moment as i need new coilovers and can't afford it due to having the motorbike! I miss her though, you'll be seeing me in the new year for sure I finally did that road tyres vs track tyres review, not finished writing it up yet but you can see some of the data i gathered here: http://www.tyrereviews.co.uk/Article/road-...yres-teaser.htm

It's kind of important to have them if there an integral part of the design though It might be safer and more predictable to have them but where's the fun, have you forgotten what the MR2 was like

I was invited to a tyre launch in the south of france a while back. It was the launch of the goodyear optigrip. Goodyear have optimised this tyre so as the tread wears down the tyre keeps it's wet weather handling (they've actually been quite clever with dual compound and clever treadblock design, anyway) A number of the tests focused on worn optigrips vs either worn contis or worn michelins. The difference was night and day, especially the curved aquaplaning tests where you'd drift around 1m with the Goodyear and well over 3 metres with the other brand. Very impressive.

ARBs are overrated anyway, think of the lift off oversteer!!

We discussed this earlier in the year, the full pdf can be found here: http://www.tyrereviews.co.uk/Article/Toyo-R888-warning.htm it's a bit worrying