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991.2 GT3RS - Tire Size on a 19" Wheel?

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Old 04-10-2020, 07:44 PM
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Vetch
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Default 991.2 GT3RS - Tire Size on a 19" Wheel?

A while back, someone replied to a thread I started about 3RS tires for track events. They mentioned dropping down to a 19" wheel, but some replied that a 19 would have issues. Regardless, for any one running 19's on a .2 3RS, what are the tire sizes?
Old 04-11-2020, 10:48 AM
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sasportas
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265/35/19 Front
315/35/19 Rear

Hoosier R7's

No problem what so ever at the track.
Old 04-11-2020, 12:49 PM
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TRAKCAR
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I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.

Both run fine with SC and TC on.
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Old 04-11-2020, 02:54 PM
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^^^ anyone run 20?
Old 04-13-2020, 02:14 PM
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porscheflat6
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Originally Posted by TRAKCAR
I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.

Both run fine with SC and TC on.
What Fiat ratios you running?
Old 04-13-2020, 05:11 PM
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Vetch
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Originally Posted by sasportas
265/35/19 Front
315/35/19 Rear

Hoosier R7's

No problem what so ever at the track.
Hmmm... so there isn't a non-Hoosier option for small than 20/21" wheels?
Old 04-13-2020, 05:13 PM
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Vetch
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Originally Posted by TRAKCAR
I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.

Both run fine with SC and TC on.
Ok. Three questions...
1. What is the aspect ration on these?
2. What the heck is a Fiat take off?
3. Where do you get them?
Old 04-14-2020, 02:09 AM
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Smoking Rotors
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[QUOTE
Originally Posted by [b]TRAKCAR View Post
I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.
_________________________________________________________

Both run fine with SC and TC on.=Vetch;16545168]Ok. Three questions...
1. What is the aspect ration on these?
2. What the heck is a Fiat take off?
3. Where do you get them?[/QUOTE]

I think Trakcar is running Hoosier R7's as well - those look like Hoosier sizes. IIRC Pirelli (Fiat reference?) has the narrower slicks with more grip than the Hoosiers, but I've heard Porsche warns against using them as the suspension supposedly can't handle the g loads.

https://www.pirelli.com/tires/en-us/...ts-sheet/slick

more:
https://rennlist.com/forums/991-gt3-...l#post16544618
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Old 06-09-2020, 06:20 PM
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dfoster
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Originally Posted by sasportas
265/35/19 Front
315/35/19 Rear

Hoosier R7's

No problem what so ever at the track.
What rim size, offsetting are you running?
Old 06-10-2020, 01:36 PM
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porscheflat6
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Originally Posted by Smoking Rotors
[QUOTE
Originally Posted by [b]TRAKCAR View Post
I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.
_________________________________________________________

Both run fine with SC and TC on.=Vetch;16545168]Ok. Three questions...
1. What is the aspect ration on these?
2. What the heck is a Fiat take off?
3. Where do you get them?
I think Trakcar is running Hoosier R7's as well - those look like Hoosier sizes. IIRC Pirelli (Fiat reference?) has the narrower slicks with more grip than the Hoosiers, but I've heard Porsche warns against using them as the suspension supposedly can't handle the g loads.

https://www.pirelli.com/tires/en-us/...ts-sheet/slick

more:
https://rennlist.com/forums/991-gt3-...l#post16544618[/QUOTE]


@TRAKCAR what FIAT slick you running. I have ordered a set and plan to switch from Hoosiers because of operations costs
Old 06-10-2020, 07:51 PM
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TRAKCAR
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Originally Posted by Smoking Rotors
[QUOTE
Originally Posted by [b]TRAKCAR View Post
I ran:
295/19
345/19
fits without rubbing on 19” Forgeline(I have for sale).
I prefer the narrower Fiat take off slicks cost and quality wise.
_________________________________________________________

Both run fine with SC and TC on.=Vetch;16545168]Ok. Three questions...
1. What is the aspect ration on these?
2. What the heck is a Fiat take off?
3. Where do you get them?
I think Trakcar is running Hoosier R7's as well - those look like Hoosier sizes. IIRC Pirelli (Fiat reference?) has the narrower slicks with more grip than the Hoosiers, but I've heard Porsche warns against using them as the suspension supposedly can't handle the g loads.

https://www.pirelli.com/tires/en-us/...ts-sheet/slick

more:
https://rennlist.com/forums/991-gt3-...l#post16544618[/QUOTE]


======

Thanks for tagging me



Yes, Ferrari challenge take offs. There are several vendors selling them. I bought 5 sets and all 5 lasted two days.
Much better then Hoosier, even used and they do t rotate on the wheel like R7 crap. I probably ran 6-8 set. The failure rate and the rotation on the wheel is frustrating.

Whatever the size is, it works fine with SC on.
I don’t know my Forgeline offset but new price is $7K plus TPS retail and selling for $3800 with TPS and a set of these Fiat tires that I set my PB the last time I used them so might as well.

Or call Autoquest and they can help you with a new shiny set with all info.
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Old 06-10-2020, 07:56 PM
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Vetch
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Originally Posted by TRAKCAR
I bought 5 sets and all 5 lasted two days. Much better then Hoosier...
You get only two days from a set of tires?
Old 06-10-2020, 07:58 PM
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TRAKCAR
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Take offs are used.
But slicks can last maybe 3 or even 4 days when you buy new.
Same with R7
Same Michelin
Dunlops are faster and you get 4 days

Add seconds per lap = add days to tires.
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Old 06-10-2020, 08:06 PM
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Do you have pics of your Forgeline’s for sale? They’re fit for a GT3RS?
Old 06-10-2020, 08:14 PM
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TRAKCAR
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Here you go.
https://rennlist.com/forums/for-sale...for-991rs.html


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