06-15-2018, 09:04 AM | #1 |
White knuckled & smiling
Drives: '17 ZL1 AKA Perfection! Join Date: Aug 2015
Location: Lawn Guy Land NY
Posts: 324
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305/30ZR20s up front on ZL1?
Questions abound.
Since I have an extra set of 20" forged wheels. I was looking for a set of slicks to put on when i head to a track. I've had good luck with Hoosiers in the past and can get the R7s at a small discount through a friend. Now they don't show a 285 in 20", but they do have 305s. Can the 305 fit up front without any issues? Any thoughts on going to a 305 square setup on a stock ride height ZL1? I don't want to go down to a 265 up front if i can help it, but if it has to be, then it has to be.
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2017 ZL1 A10 CFHood PDR NAV NFG - Order # VCSDRJ
TPW - 3/6/2017 VIN - 1G1FK1R62H0192950 6000 - 04/05/2017 - Delivered! |
06-15-2018, 09:50 AM | #2 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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295 is pushing it as is, I don't know about a 305 on a 10" front with the spacing. People are fitting a 305 on the ZL1 1LE wheels on regular ZL1s but only at very conservative cambering or it rubs. Not sure how that would change for the regular ZL1 wheels...The 305 will also be taller which will also be a no-no...265 is going to be pretty narrow and short.
Have you looked at the Toyo R888R? They come in good sizing, and they're actually built for the road course but also hook like a drag radial. Lots of members absolutely love these tires, myself included. |
06-15-2018, 10:06 AM | #3 |
Drives: 2017 ZL1 Join Date: Mar 2017
Location: NH
Posts: 278
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I’m running 305s on aftermarket 19s and it is pretty damn tight, for what it’s worth.
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2017 Camaro ZL1, Nightfall Gray Metallic: M6, PDR, exposed CF, navigation, sunroof
Mods: Rotofab CAI, Tony Mamo TB, Kooks headers (green cats), 18% LPE lower pulley, E85/FlexFuel sensor. BC Forged RS41s (19x10, 19x12)/PS4S, R888R (305/325) Dyno: E40: 661whp/703wtq, 93: 633whp/674wtq |
06-15-2018, 10:31 AM | #4 | |
White knuckled & smiling
Drives: '17 ZL1 AKA Perfection! Join Date: Aug 2015
Location: Lawn Guy Land NY
Posts: 324
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Quote:
I know the Hoosiers do have a more pronounced corner to them than most other tires and that's what I think would be the killer in fitment for me. How is the wear on the Toyos on larger tracks? Any draw backs at high speed? What camber are others running with Toyos? I'm currently at -1.9 front and -1.4 rear. On stock tires the outside edge is wearing pretty heavy. I can go a bit more negative front and rear for sure. But what's a real world example from a Toyo user?
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2017 ZL1 A10 CFHood PDR NAV NFG - Order # VCSDRJ
TPW - 3/6/2017 VIN - 1G1FK1R62H0192950 6000 - 04/05/2017 - Delivered! |
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06-15-2018, 10:36 AM | #5 |
Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018
Location: RGV Texas
Posts: 1,527
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I’m thinking about the R888Rs my self in 295/30/20 and 315/30/20. Pretty sure it will hook like crazy. A 265/30/20 is going backwards. You will lose grip and the height will be off by an inch.
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06-15-2018, 01:19 PM | #6 |
Drives: 2012 Porsche 911 Turbo S Join Date: Jan 2017
Location: Los Angeles, CA
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So R888Rs 295/30/20 and 315/30/20 should fit ok? That will be a sweet setup. I'll have to check that out
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-- Current -- 2012 Porsche Turbo S - PDK - Basalt Black Metallic -- Past -- 2017 Camaro ZL1 Coupe - Red Hot - A10, PDR - HRE P101 2015 Mustang GT PP - Whipple Supercharger |
06-15-2018, 01:58 PM | #7 |
ITCRNRS
Drives: 2018 ZL1 1LE Join Date: Jun 2012
Location: Wichita KS
Posts: 1,581
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295/30R20 is available in the RE-71r's
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2018 ZL1 1LE Ordered 6/29/17 Built 11/6/17 Delivered 12/7/17, Summit White, PDR, NAV, https://www.youtube.com/c/tylerpotter
SOLD: 2014 Summit White 1LE 2SS/RS, Recaros, NPP, NAV, KONI Yellow's SOLD: 2012 Black 2LT/RS, Fully 1LE swapped, Brembo swap |
06-15-2018, 02:56 PM | #8 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,815
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Yes! A tire I'm going to try in the future.👍🏼
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
06-15-2018, 06:18 PM | #9 |
Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018
Location: RGV Texas
Posts: 1,527
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Really only going to be a 1/2” width increase for both front and back. I’ve seen someone on here put 305/30/20 in the front and 325/30/20 in the back. Looked sick!
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