utkinpol

RE-11 in 245/305 are much better tires and they do exist in 19". I really do not see an issue, there are tons of tires in 245/305 sizes. 305 stretches on a 12" rim with no problems, 8.5" is ideal for 245.

911Jetta

(to the Chris Harris video) Obviously there's no rear end grip, but it's amazing how well the front end turns on those space savers.

997gt3north

RE-11 is not going to turn up the fun meter that much versus the OE cups - the RE-11s will be too sticky to do that - that is why I went search in the All Season catelog - and that is where you start to run out of 305s.

YearOne

So lets reply to a few of your answers:

I own an E30 M3 already.

If you like the standard set-up i'm happy for you.

I race GT cars, have done for 5 seasons with Caterhams and Radicals before that. Raced: Viper GT3 car, Mosler GT3, Marcos with LS7, Ferrari 355 Challenge, Ginetta G50 in FIA GT4 championship contenders until mechanical failure in final round and multiple podium places, MSA Endurance Champion Class 3 2011 in LS7 Marcos and race winner.... Currently trying to go semi-pro. I driver coach as well.
3x 24hr races, led all three and were leading the last with 4hrs to go when the car died (Mosler).

I can run sub 8min laps of the 'ring with the car as it is.

My car has the GT2 bar already.

I dont want a drift car so merely making it over steer by setting the bars isnt teh answer at all. Its the balance of grip thats needed here.

If Porsche didnt think there was anything wrong with 8.5 for the front the RS would'nt have gone wider.

Harris' video was interesting timing as i'v been thinking about this for ages. Skinny tyres = lots of fun. The rears on the GT3 are massive for a 420bhp car.

The car will do anything you like if you provoke it but thats not the point, I can drift the thing all day on circuit and with provocation the road too.

Its perfectly possible to drive the car to its limits on the road, you need the right place, skill and good judgement/common sense.

I still think i'm right about this but I will try the wider front track first to see if that helps, the EXE-TC suspension and their new wonder diff that makes a 997 Cup faster over a tarmac stage than a WRC car.

Does the GT2 run a 8.5 front?

My 993RS has 8s and 10s, much more like it.

YearOne

So lets reply to a few of your answers:

I own an E30 M3 already.

If you like the standard set-up i'm happy for you.

I race GT cars, have done for 5 seasons with Caterhams and Radicals before that. Raced: Viper GT3 car, Mosler GT3, Marcos with LS7, Ferrari 355 Challenge, Ginetta G50 in FIA GT4 championship contenders until mechanical failure in final round and multiple podium places, MSA Endurance Champion Class 3 2011 in LS7 Marcos and race winner.... Currently trying to go semi-pro. I driver coach as well.
3x 24hr races, led all three and were leading the last with 4hrs to go when the car died (Mosler).

I can run sub 8min laps of the 'ring with the car as it is.

My car has the GT2 bar already.

I dont want a drift car so merely making it over steer by setting the bars isnt teh answer at all. Its the balance of grip thats needed here.

If Porsche didnt think there was anything wrong with 8.5 for the front the RS would'nt have gone wider.

Harris' video was interesting timing as i'v been thinking about this for ages. Skinny tyres = lots of fun. The rears on the GT3 are massive for a 420bhp car.

The car will do anything you like if you provoke it but thats not the point, I can drift the thing all day on circuit and with provocation the road too.

Its perfectly possible to drive the car to its limits on the road, you need the right place, skill and good judgement/common sense.

I still think i'm right about this but I will try the wider front track first to see if that helps, the EXE-TC suspension and their new wonder diff that makes a 997 Cup faster over a tarmac stage than a WRC car.

Does the GT2 run a 8.5 front?

My 993RS has 8s and 10s, much more like it.

997gt3north

To re-quote yourself, more front is only going to make it faster, better and more capable - especially when you mate it to a better suspension.

I really think if you start looking for acceptably crappy tires you will get what you want. With this in mind, and it sounds like you want new rims, you should definitely go down to 11s in the rear - this will open up 285/295 as choices. I would also add, that if this is your path, you should really, really consider 18s - as 18s will again open up a lot more mix and match potential and, you can also run slightly taller sidewalls and these less grippy tires and this will again make the car more fun.

I just quickly searched tirerack and there is some good choices in 18s performance All Seasons
- Mich Pilot Sport All Season 255/35, 275/40
- Pzero Nero All Season 255/35, 285/35

these would work with either 8.5 or 9" fronts and 11 rears

DM993tt

Just do this and you'll be all set. 125's all around.

YearOne

That was the point of going for less rear as opposed to more front, the RS has a stunning front end (compared to the .1 GT3) but raises the limits further. I had PS2s on it for a while but it was horrible and understeered badly although I think it had too much camber for those tyres at the time and they couldnt work properly. If I get new wheels they will be 18s for the reduction in unsprung weight and increase in tyre choice. Initially I am going to try the widened front (spacers and Cup wings) and the suspension and diff, although 18s would be good anyway.

YearOne

Thinking of these:

http://www.braid.es/wheels/products/...d-gt_p297.html

Front and rear stepped as here, on the orange Ginetta bottom left:

http://www.braid.es/wheels/galleries...tion_p56.html#

YearOne

This page, top right, is the Mosler from the 24hr we nearly won last year:

http://www.braid.es/wheels/galleries...56.html?page=2

AYHSMB

I think this an excellent suggestion and hope someone tries it. 255/285 is good geometrically for these cars.

I actually think that high performance summer tires are a scam. They're still no good for the track, so you need separate track tires/wheels, and on the road that extra grip actually makes the car less fun. You're not racing on the road, you don't need the extra bit of speed that the summer tires offer. Just running all seasons makes the car more fun, and saves the hassle of swapping sets.

Riz

I would get a 996 GT3 - it is much more alive and tossable on the road. I lose it all the time even in second gear even in dry conditions. The 997.2 RS does have has an insane amount of grip as you are referring to. The 996 feels lighter too because of less rubber on the road. In the 997.2 RS I feel like a hero, in the 996 GT3 like a zero.

997gt3north

In 18s, the Mich Pilot Super Sports are also available in what might be a good setup

255/35/18 - diameter 25 - 9" is the spec rim
285/35/18 - diameter 25.9 - 11" is the max spec rim

235/40/18 would also work for the front and 9" is max spec - the 225/40/18 would also work but 8 to 8.5 would be better

An 11" rear rim running no spacer would have to be 55 offset using spacer or 50 offset using no spacer to be the same as OE 12" 68 offset.

Terry L

As it happens, I have a set of 996 GT3 wheels which I have just had refinished sitting in my garage. I believe they are 8.5 and 11 respectively. They fit fine on the 997.1 GT3. They sound like exactly what you want. Interested?

jlasuncion

Just try tires with less grip than sport cups (same widths) then you should be ok.

I have a 996 gt3 mk1 and it's balance is great (of course limits are so much lower than 6mk2 and 7gt3s). It uses 8-10, just 2 inches difference front to rear...another option you can try 8.5 - 10.5 widths with sport cups.