05-06-2019, 06:47 PM | #1 |
ZL1 Michelin Pilot Sport 4s
I was looking to upgrade my stock Good years for a better road tire. I was looking at the MPSS, but the new MPS 4S are supposed to be better in nearly every aspect.
Unfortunately they don't come in stock ZL1 sizes for the rear. 305/35R20. The closest they have is 295/35R20 and 305/30R20. Dropping to 295 keeps the diameter close, but I'm losing contact patch. 305/30 drops the diameter by 1.2" and I think that will mess with the car and the looks. Does anyone have any suggestions? The new MPS4S seem great but the only alternative I see is go with MPSS 285/35 and 315/35. They cost more and have worse performance than the new 4s. |
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05-07-2019, 01:28 PM | #2 |
Drives: 14 ZL1 Join Date: Mar 2014
Location: Calgary
Posts: 167
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I recently was looking at the MP4S and found that there is a Michelin part number for a 305/35/20 MP4S. See MPN 20855. https://www.1010tires.com/Tires/Mich...Sport+4S/20855
The front 285/35/20 have been available for a while, MPN 26716 Note, I have not actually seen or purchased these so they may not be available yet. However, with the Hellcat widebody cars coming with 305/35/20 tires are all 4 corners, I expect we will see a better selection of tires available in stock ZL1 sizes soon... |
05-07-2019, 03:30 PM | #3 |
fo'shizZL1
Drives: 2017 ZL1 Join Date: Aug 2017
Location: ATL
Posts: 1,375
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Throw that 315 on the back! More tire FTW!
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2017 ZL1 M6 Black | Maggie 2650 // 103TB // Big Gulp // CSP LT's & Ultra Cats // JMS // Elite Ultra CC // BMR MM // BC Forged KL13
Past Rides- 2014 ZL1 M6 Red Hot | Tons of mods 2004 CTS-V M6 Silver | Many mods 1995 Corvette M6 Torch Red | A few more mods 1992 Camaro M5 White | A few mods |
05-07-2019, 09:10 PM | #4 |
Oh that's awesome Boother, thanks!
If they do come out with the 305/35R20 that'd would be perfect. Even better would be a 315/35. Rob, 315 would be great but from what I've read and heard the MP4S are worth waiting for over the MPSS |
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05-07-2019, 09:56 PM | #5 |
after searching 20854, I also found 72239.
It's a 315/35ZR20 XL tire. It's apparently real. I see links to it on Amazon and other places and an actual picture of one on eBay. Odd that it's taken of Michelins website. https://www.ebay.com/itm/315-35-20-1...ry!07652!US!-1 |
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05-07-2019, 10:30 PM | #6 |
SS
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I have mpss sport 4 in 315 it wasn't available in the 4s same tire pretty close its a Porsche spec size
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CCW sp16a track set, BTR stage 3 cam and kooks longtubes with high flow catsLocks@7.5 degrees castor and radius arm inserts, Ride Tech 2coilovers JDP upper control arm bushings BMR lower knuckle bushing Bo White throttle body3.91 gears Spohn del-sphere toe link and trailing arms Prothane subframe bushings
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05-08-2019, 11:45 AM | #7 |
I spoke with Michelin and they started the 305/35R20 is currently in production with a tentative release date of June 2019. Though the rep said this date was not firm. Good news is that it is listed in their website now.
Also they are making a 315/35R20 part number 07074. It might be a run flat though. They are planning to release them this coming fall. MPS4S 305/35R20 :20855 -June 2019 MPS4S 315/35R20 :07074-Fall 2019 |
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05-08-2019, 01:38 PM | #8 | |
Big Crow
Drives: '13 ZL1 Join Date: Mar 2017
Location: California
Posts: 1,531
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05-08-2019, 08:08 PM | #9 | |
Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011
Location: MN
Posts: 2,250
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Quote:
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05-08-2019, 10:00 PM | #10 | |
SS
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that is good to hear I have a 285 35 19 re 71 set up yet to try! put the 32 mm Blackmagic sway bar on for the 315, 275 street set up the plain ole 4 series to help with understeer it had . I was wondering what swaybar combo you run with the square 285?
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CCW sp16a track set, BTR stage 3 cam and kooks longtubes with high flow catsLocks@7.5 degrees castor and radius arm inserts, Ride Tech 2coilovers JDP upper control arm bushings BMR lower knuckle bushing Bo White throttle body3.91 gears Spohn del-sphere toe link and trailing arms Prothane subframe bushings
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05-10-2019, 10:34 AM | #11 | |
Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011
Location: MN
Posts: 2,250
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Quote:
I also have the Z/28 front radius arm inserts and rear upper control arm bushings with Pregasus solid bushings for the rear cradle. |
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04-19-2021, 08:16 AM | #12 |
MPS4S 315/35R20 :07074
Just got a fresh set of MPS4S put on over the weekend. Absolutely amazing. Way better than the stock good years.
Excuse the grease on the rims MPS4S 285/35R20 :09209 MPS4S 315/35R20 :07074 |
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04-19-2021, 10:34 AM | #13 |
Big Crow
Drives: '13 ZL1 Join Date: Mar 2017
Location: California
Posts: 1,531
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In the Waiter's voice after you've chosen your dinner wine: Excellent choice sir.
Those still seem to be a top choice for all around street use. Your car looks iconic, something you'd see in a chevy wall poster of a best muscle collection |
11-24-2021, 04:17 PM | #14 |
Drives: 2014 ZL1 M6 Join Date: Jul 2014
Location: Virginia
Posts: 493
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Bringing this back up.
Looking to buy a set of 4s's for my zl1. On tire racks site, these list two types of 315/35-20s. One is NDO porsche and the other is k1 Ferrari. For the fronts they list three types of 285/35-20s. One has no code, one is k2 Ferrari and the other is star BMW. Which ones should I order? Thanks Tony
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2014 ZL1 M6
Bone stock, for now! 2001 Z28 M6 !cags, !air, FTP 85mm Lid, Z06 85mm MAF, P&P TB !4x4, Strano Springs, Strano Sways, Koni 4/4s, Watts Link ARH LTs, ARH catted Y, SLP catback with Dual/Dual Muffler, SLP CME and Valance OE Wheels Machined Face C5 DDs, 18x10.5s, with 295/35-18s on all 4 corners! 352rwhp and 366rwtq |
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