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Long time listener, first time caller (aka, thanks for all the pre-purchase guidance)
Recently bought a '07 997.1 for track use. Thoughts are much the same as OP. Wanted something for 95% track, but could go get a coffee 5% of the time on the weekends.
Upgrades by previous owner: Getty cup wing and engine lid New cup splitter (have street one as well, for getting coffee) Bolt-in roll bar
Numeric short shift
New rear differential New wheel bearings New transmission, issue with 2nd gear slipping out
Brembo steel rotors/brakes (have ceramics too) Recaro sportsters and Schroth belts (have OEM seats as well) 3M clear wrap
plus an extra set of BBS 3 piece wheels w/ Hoosier R6's
In the shop now:
Front grille inserts
Fire extinguisher
Shift light
Rear badging
Noodling on:
Suspension or PASM/DCS upgrade
Exhaust bits
Next engine drop:
pin coolant lines (already running Wetter Water)
No engine mod's, going to stay stock otherwise
But as soon as you strap in and start the engine, the Cup gives you so much more then any modified Streetcar! Just the feel of a real factory designed racecar is priceless! And if you're turning laptimes at 105% of Supercup-cracks, anything else just doesen't do it anymore...
It's all about how much developed you are as a driver... I used to love the Nordschleife but turned away because the Touristenfahrten are often too dangerous to hunt for decent times. Once the Cup-driving started in 2010/ 2011, I almost turned away completely. Not because I don't like the track anymore but because 'going advanced' 10 to 15 times a year just gave me much more pleasure and joy then spending every second sunday on a sometimes overcrowded and not-so-safe track with at least some seriously crazy blokes around me. They didn't even let you to use a HANS for a short period of time back in the day when some of us wanted to improve their own safety because they thougt it would disable our vision! That was just one point out of some that made me feel uncomfortable... Do I miss it? Not really...
In my opinion there is no turning back... Roadcar for the road, Cup for the track! But it's true: It is expensive! But once you are addicted there's no way back if your wallet let's you afford another day!
What are the right Hoosier sizes for 997.2 GT3 (NB)?
I don't think there's a "right" size for all NB cars because the fitment depends on the wheel diameter/width/offset, and the setup of on the specific car. The common R7 sizes I have used on NB are:
front 225/40-18 (24.7" tire height)
rear 315/30-18 (25.6") or 295/30-18 (25.3")
front 245/35-18 (24.4")*
rear 315/30-18 (25.6") or 295/30-18 (25.3")
front 255/35-18 (24.8")*
rear 315/30-18 (25.6") or 295/30-18 (25.3")
front 235/35-19 (25.6" tire height)
rear 315/30-19 (26.1")
*denotes wider front tires require rotating the front top plates and associated setup work.
Also, depending on the track, some tracks is better to have front tires that are at least 0.5" shorter than the rear tires to keep stock ABS happy.
Last edited by Tom@TPC Racing; 12-12-2016 at 01:48 PM.
Reason: added last paragraph
I had been switching back and forth between 18's and 19's. For a while I had both diameter sets of wheels. I really liked running the Nitto Nt01 245/40-18 and 305/35-18. But for a while it was hard to find those rear tires. Then I ran Hoosier R7 235/35-19 and 315/30-19 which quickly became a new benchmark for grip, for me. 18" wheels are of course lighter weight(for the same construction) and tires cost less but the R7 width/height for 18" is pretty spotty, in my opinion. Like I have no desire to set the height and corner balance my car for the 18" R7's shorter profiles...So I sold my 18" wheels and sticking with 19". Also the newest technology tires such as Bridgestone Re71r and Toyo R888r aren't available in 18" sizes for our kind of cars, but they are in 19". Anyway, you shouldn't do I'm doing. You should have wheels to fit the tires that YOU want to run.
11-17-2016, 07:18 PM
(aka, thanks for all the pre-purchase guidance)
