Less rubber on the rear...
#16
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
It also sounds like from your description that your car is pushing - do you run the GT2 rear bar? - if not that is another cheap upgrade that will I think give you more of what you are looking for.
http://www.tirerack.com/tires/tires....oModClar=Coupe
http://www.tirerack.com/tires/tires....oModClar=Coupe
#17
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
(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.
#18
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
#19
Racer
Thread Starter
Join Date: Aug 2006
Location: London UK
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
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.
#20
Racer
Thread Starter
Join Date: Aug 2006
Location: London UK
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
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.
#21
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by YearOne;9181021 I have slightly different goals than lap times and pure track performance.[B
For me a road car needs to be fun[/B], this is the main criteria, I want to be able to use all of its potential on the road. I drove a 997.2 GT3RS and on a country road its grip levels with the wider fronts was so high that it was too fast for even a quiet rural road, the car had more grip than power
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
#23
Racer
Thread Starter
Join Date: Aug 2006
Location: London UK
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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
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
#24
Racer
Thread Starter
Join Date: Aug 2006
Location: London UK
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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#
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#
#25
Racer
Thread Starter
Join Date: Aug 2006
Location: London UK
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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
http://www.braid.es/wheels/galleries...56.html?page=2
#26
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
#27
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
As we know the 997.1 GT3 has an imbalance in tyre size front to rear. Why they went with 8.5 front and 12s rear i'll never know. As a lot of you have done you upgrade to 9s for the front and stick with the 12s on the rear however I have slightly different goals than lap times and pure track performance. For me a road car needs to be fun, this is the main criteria, I want to be able to use all of its potential on the road. I drove a 997.2 GT3RS and on a country road its grip levels with the wider fronts was so high that it was too fast for even a quiet rural road, the car had more grip than power (obviously it could be provoked but basically its grips and goes). On a circuit this is good, the more rubber down the better for for a street car whos job is to entertain it isn't.
In my opinion the GT3 does not need 12 wide rears. For the horsepower it produces this is too much rubber, first gear can take full throttle and not spin up even with some lock applied, not fun. Soooooo, whats the answer? New wheels but in what size? I am going to fit the wide Cup front wings, space the fronts, EXE-TC suspension and differential so which wheels:
Option 1: 9s and 12s
or
Option 2 8.5s and 11.5s
What do we think of option two? This is what I am leaning towards, get less overall grip (lower cornering limits, more fun) but bring the balance in line and address the issue of too much rear grip on these cars.
I realise most of you will not understand this and will think the more grip and rubber on the road the better but Im certain this will make the ultimate road car.
Thoughts please?
In my opinion the GT3 does not need 12 wide rears. For the horsepower it produces this is too much rubber, first gear can take full throttle and not spin up even with some lock applied, not fun. Soooooo, whats the answer? New wheels but in what size? I am going to fit the wide Cup front wings, space the fronts, EXE-TC suspension and differential so which wheels:
Option 1: 9s and 12s
or
Option 2 8.5s and 11.5s
What do we think of option two? This is what I am leaning towards, get less overall grip (lower cornering limits, more fun) but bring the balance in line and address the issue of too much rear grip on these cars.
I realise most of you will not understand this and will think the more grip and rubber on the road the better but Im certain this will make the ultimate road car.
Thoughts please?
#28
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
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.
#29
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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?
#30
Instructor
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
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.