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2020+ Shelby GT500 Mustang
Randy Pobst Testing The Big 3 (HellCat,GT 500,1LE)
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<blockquote data-quote="tt335ci03cobra" data-source="post: 16363895" data-attributes="member: 68944"><p>I hear things like that, but there are simply stickier cheater slicks than mpsc2’s. I will say they are no where near as light and confidence inspiring, but feel is subjective. Get used to a tire and it’s quirks and I gut hunch feel there has to be time using a trofeo r or r888r or whatever sub 100tw tire on a gt500 cftp.</p><p></p><p>That r888r’s took a gt500 to 1.5 60ft times, which is mental for a damn radical handling tire, leads me here. If the additional grip exists, it’s a matter of pressure, setup and so on to find how to extract and use it up.</p><p></p><p>Same way down force is useless with suspension adjustments to handle the load and force, just changing a tire won’t be opportune. Pressure plays a huge factor.</p><p></p><p>If a tire works awesome at 27/28psi on a 3600lbs car with 3650lbs and 51/49% distribution, with 275/295 sizes etc etc logic dictates it will need more air pressure to work awesome in a 4125lbs car with 53/47%, 295/315, etc. it might want 29/29 to have less tendency to slip away under load, but more compliance to maintain form against churning forces etc.</p><p></p><p>A 2150lbs gutted s2000 might only need 22/23psi to set it off epic with square 245’s and perfectly stave off deflecting sidewalks but squarely use the contact patch etc etc etc etc etc.</p><p></p><p>I’m sure the michelin is about as good as it gets, but I’m just saying I can’t see how mpsc2’s at 32psi is the optimum setup for a gt500 cftp.</p><p></p><p>If you are gonna try and optimize tire for other cars, then at least optimize pressure and possibly tire for the gt500cftp too.</p><p></p><p>A 2002 viper gtsr will shit on a lot of cars today with just some trofeo r’s and modern pads/fluid. It probably would hit leguna seca with a 1:36 or better. Gt350r is like 1:34.9 so that’s pretty substantial given a 2002 gtsr was maybe good for 1:41 stock. Pads, fluid, tires etc have moved on by echelons.</p><p></p><p>Just taking an 03 cobra or 02 ss Camaro and putting trofeo’s and pads/fluids will easily be worth tons of time on track. </p><p></p><p>Motortrend tested slicks on a stock mustang gt like a few years ago and lopped 5-7 seconds a lap iirc. Tire is basically the number 1 time mod for laps</p></blockquote><p></p>
[QUOTE="tt335ci03cobra, post: 16363895, member: 68944"] I hear things like that, but there are simply stickier cheater slicks than mpsc2’s. I will say they are no where near as light and confidence inspiring, but feel is subjective. Get used to a tire and it’s quirks and I gut hunch feel there has to be time using a trofeo r or r888r or whatever sub 100tw tire on a gt500 cftp. That r888r’s took a gt500 to 1.5 60ft times, which is mental for a damn radical handling tire, leads me here. If the additional grip exists, it’s a matter of pressure, setup and so on to find how to extract and use it up. Same way down force is useless with suspension adjustments to handle the load and force, just changing a tire won’t be opportune. Pressure plays a huge factor. If a tire works awesome at 27/28psi on a 3600lbs car with 3650lbs and 51/49% distribution, with 275/295 sizes etc etc logic dictates it will need more air pressure to work awesome in a 4125lbs car with 53/47%, 295/315, etc. it might want 29/29 to have less tendency to slip away under load, but more compliance to maintain form against churning forces etc. A 2150lbs gutted s2000 might only need 22/23psi to set it off epic with square 245’s and perfectly stave off deflecting sidewalks but squarely use the contact patch etc etc etc etc etc. I’m sure the michelin is about as good as it gets, but I’m just saying I can’t see how mpsc2’s at 32psi is the optimum setup for a gt500 cftp. If you are gonna try and optimize tire for other cars, then at least optimize pressure and possibly tire for the gt500cftp too. A 2002 viper gtsr will shit on a lot of cars today with just some trofeo r’s and modern pads/fluid. It probably would hit leguna seca with a 1:36 or better. Gt350r is like 1:34.9 so that’s pretty substantial given a 2002 gtsr was maybe good for 1:41 stock. Pads, fluid, tires etc have moved on by echelons. Just taking an 03 cobra or 02 ss Camaro and putting trofeo’s and pads/fluids will easily be worth tons of time on track. Motortrend tested slicks on a stock mustang gt like a few years ago and lopped 5-7 seconds a lap iirc. Tire is basically the number 1 time mod for laps [/QUOTE]
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Randy Pobst Testing The Big 3 (HellCat,GT 500,1LE)
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