Nashville SCCA Track Night 10-9-24
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Junior Member
Joined: Jun 2019
Posts: 51
Likes: 28
From: TN
GTR
Nashville SCCA Track Night 10-9-24
Last track outing (about 12 mos ago) was plagued with understeer and brake fade. Focused on W2W SM for a bit, but wanted to get the GTR back on the track as the SM gets refreshed this winter. Thanks to others' experience here, made some changes:
1) camber shims to get -2.5 at all four corners
2) added Tikt front brake ducts
3) Swapped to Hoosier R7's - was going 295F/335R, but a SNAFU from where I ordered ended up with 315F/335R.
Long story short, this is how they should've sold the car.
Understeer cured, no tire rubbing.
Brakes held up perfectly - tikt works. Allowed me to carry more speed given the confidence in the brakes.
In this trim, the car is formidable. The vettes often seem to think it is a pricey show-er, but when they can't outrun it, they are believers.
May do NCM, NSS, and Barber before 2024 is done.
Thanks to everyone on this forum for the wisdom.
Now, of course.....to go faster
1) camber shims to get -2.5 at all four corners
2) added Tikt front brake ducts
3) Swapped to Hoosier R7's - was going 295F/335R, but a SNAFU from where I ordered ended up with 315F/335R.
Long story short, this is how they should've sold the car.
Understeer cured, no tire rubbing.
Brakes held up perfectly - tikt works. Allowed me to carry more speed given the confidence in the brakes.
In this trim, the car is formidable. The vettes often seem to think it is a pricey show-er, but when they can't outrun it, they are believers.
May do NCM, NSS, and Barber before 2024 is done.
Thanks to everyone on this forum for the wisdom.
Now, of course.....to go faster
Last edited by Scrubs02; Oct 9, 2024 at 10:04 PM.
Member
Joined: Jan 2024
Posts: 110
Likes: 23
2022 gls450, 2020 AMG GTR
Last track outing (about 12 mos ago) was plagued with understeer and brake fade. Focused on W2W SM for a bit, but wanted to get the GTR back on the track as the SM gets refreshed this winter. Thanks to others' experience here, made some changes:
1) camber shims to get -2.5 at all four corners
2) added Tikt front brake ducts
3) Swapped to Hoosier R7's - was going 295F/335R, but a SNAFU from where I ordered ended up with 315F/335R.
Long story short, this is how they should've sold the car.
Understeer cured, no tire rubbing.
Brakes held up perfectly - tikt works. Allowed me to carry more speed given the confidence in the brakes.
In this trim, the car is formidable. The vettes often seem to think it is a pricey show-er, but when they can't outrun it, they are believers.
May do NCM, NSS, and Barber before 2024 is done.
Thanks to everyone on this forum for the wisdom.
Now, of course.....to go faster
1) camber shims to get -2.5 at all four corners
2) added Tikt front brake ducts
3) Swapped to Hoosier R7's - was going 295F/335R, but a SNAFU from where I ordered ended up with 315F/335R.
Long story short, this is how they should've sold the car.
Understeer cured, no tire rubbing.
Brakes held up perfectly - tikt works. Allowed me to carry more speed given the confidence in the brakes.
In this trim, the car is formidable. The vettes often seem to think it is a pricey show-er, but when they can't outrun it, they are believers.
May do NCM, NSS, and Barber before 2024 is done.
Thanks to everyone on this forum for the wisdom.
Now, of course.....to go faster
Thread Starter
Junior Member
Joined: Jun 2019
Posts: 51
Likes: 28
From: TN
GTR
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Thread Starter
Junior Member
Joined: Jun 2019
Posts: 51
Likes: 28
From: TN
GTR
I think OEM is 10", but still undersized per the Hoosier spec. Have a set of 8twelves (formerly Finspeed) on order that should make things right going forward. No doubt, however, max rubber up front makes turning in while hot more fun.
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/////PRO
Did you stick with factory 19/20 stagger, or go to a 19/19 so can run slicks on all 4-corners on the 8Twelve order?
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Joined: Dec 2014
Posts: 738
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/////PRO
If not too late I’d suggest a 19x12.5” rear, the 19x11” front is perfect.
I feel the rear slick sizes are happier on the 12.5”:
Hoosier 345/30-19
Hankook 320/710-19
Michelin 31/71-19
Pirelli 300/720-19 (fine on a 12”), 315/705-19, 325/705-19
I feel the rear slick sizes are happier on the 12.5”:
Hoosier 345/30-19
Hankook 320/710-19
Michelin 31/71-19
Pirelli 300/720-19 (fine on a 12”), 315/705-19, 325/705-19
Thread Starter
Junior Member
Joined: Jun 2019
Posts: 51
Likes: 28
From: TN
GTR
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Joined: Dec 2014
Posts: 738
Likes: 212
/////PRO
The CRSv2 is so sneaky good, it’s a nice track crowd secret !
I also was impressed with Sport Cup2R 285/35-19 and 335/30-20.
Last edited by dlefty; Nov 5, 2024 at 07:21 PM.
