11-29-2014, 06:38 AM | #43 | |
Drives: '16 C7 Z51 Join Date: May 2012
Location: Redmond, WA
Posts: 3,056
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Quote:
I finally ordered my OEM Z/28 wheels for track duty. I was going to try these Hoosier tires, too, but then ran into an eBay post for Trofeo Rs taken off of a Z/28 @ 38 miles. At $1670 shipped, it's worth trying them first before trying any other tire.
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'16 Corvette C7 Z51 1LT (Build Thread)
'14 AGM 1SS 1LE [COTW 11/17/14] (Build Thread) (SOLD) '13 Mazda MX-5 Club (Build Thread) '17 RAM 1500 Crew Cab 4x4 Night Edition '15 Nissan Rogue S AWD |
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11-29-2014, 07:51 AM | #44 |
Drives: BAC Mono Join Date: Apr 2013
Location: Reno
Posts: 869
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If anyone is interested in selling an 80%+ set of their OE Trofeo R's please message me. Thanks
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2014 Z/28, White
"I wasn't asked to make it cheap...I was asked to make it FAST!" Mark Stielow, the new Z/28. |
08-06-2015, 07:32 PM | #45 |
Driver's Club AZ
Drives: '14 HPE Z/28, '16 2SS convertible Join Date: Jul 2015
Location: AZ
Posts: 42
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Any update on the Hoosiers?
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08-18-2015, 10:20 AM | #46 |
Drives: 2015 Z/28 HPE650 Join Date: Jul 2015
Location: LA
Posts: 73
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4th set of R7's
Im on my 4th set of R7's.
I run 315/30's on front and 325/30's on the rear. They heat cycle out after 2 track days and then your driving on ice skates. But they feel great when fresh. Have to run higher then normal pressures to make em work. Up to 45psi hot. |
09-17-2015, 07:19 PM | #47 |
Drives: VetteZ & Z28 Join Date: Feb 2015
Location: COTA
Posts: 34
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315 front and 325 rears, is that on stock wheels?
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09-18-2015, 11:29 AM | #48 |
Drives: 2015 Z/28 HPE650 Join Date: Jul 2015
Location: LA
Posts: 73
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Yep, stock wheels.
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09-18-2015, 01:25 PM | #49 |
Drives: VetteZ & Z28 Join Date: Feb 2015
Location: COTA
Posts: 34
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That's one heck of a flat spot!! Spin?
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09-18-2015, 01:43 PM | #50 | |
Drives: '16 C7 Z51 Join Date: May 2012
Location: Redmond, WA
Posts: 3,056
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My Trofeo Rs did not fare much better to be honest:
From my build thread: Quote:
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'16 Corvette C7 Z51 1LT (Build Thread)
'14 AGM 1SS 1LE [COTW 11/17/14] (Build Thread) (SOLD) '13 Mazda MX-5 Club (Build Thread) '17 RAM 1500 Crew Cab 4x4 Night Edition '15 Nissan Rogue S AWD |
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09-19-2015, 11:11 AM | #51 |
Drives: 2015 Z/28 HPE650 Join Date: Jul 2015
Location: LA
Posts: 73
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09-20-2015, 04:47 PM | #52 |
Drives: '15 Z/28 Join Date: Dec 2014
Location: NJ
Posts: 113
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X25, I think tire pressure is not exactly the issue. What amount of camber are you using? I am at -2.9 front and -1.8 rear, ran hot pressures of 34f/32R and have had no such delamination issues. I have over 700 track miles (about 5 days) Looking at my wear patterns, I am going to increase the front to 3.2 and rear to -1.9 or maybe -2, and change tire pressures to about 35F/30R hot. Fronts are almost shot, rears have another day or 2 on them, this is on the stock Trofeos. Brake pads by the way are still doing pretty well with 7mm front and 6mm rear.
For reference, I am running in instructor group with PCA. Any other feedback on Hoosiers from others? |
09-20-2015, 04:59 PM | #53 | |
Drives: '16 C7 Z51 Join Date: May 2012
Location: Redmond, WA
Posts: 3,056
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Quote:
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'16 Corvette C7 Z51 1LT (Build Thread)
'14 AGM 1SS 1LE [COTW 11/17/14] (Build Thread) (SOLD) '13 Mazda MX-5 Club (Build Thread) '17 RAM 1500 Crew Cab 4x4 Night Edition '15 Nissan Rogue S AWD |
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09-20-2015, 10:47 PM | #54 |
Drives: 2015 Z/28, 2015 F-Type R Join Date: Jan 2015
Location: NJ
Posts: 7
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I've tested the R7s 315/30/19 size on both front and back mounted on OEM wheels (I have a separate set of OEMs/tires for the street. They work extremely well. I started at -3.0 camber on front but backed it off to -2.5 to even the wear a bit (this could vary by track). The downside is that if you drive hard, you can only get about 10 heat cycles out of them. I tried recommended cold pressure at 36 psi, but in my view they lose too much when above 42 psi hot, so I now run them at 29 psi cold/38 hot and they work great.
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15 Z/28 Black (Track)
15 F-Type R (Street) |
09-20-2015, 11:47 PM | #55 | |
Drives: '16 C7 Z51 Join Date: May 2012
Location: Redmond, WA
Posts: 3,056
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Quote:
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'16 Corvette C7 Z51 1LT (Build Thread)
'14 AGM 1SS 1LE [COTW 11/17/14] (Build Thread) (SOLD) '13 Mazda MX-5 Club (Build Thread) '17 RAM 1500 Crew Cab 4x4 Night Edition '15 Nissan Rogue S AWD |
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