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2020+ Shelby GT500 Mustang
2020 Shelby GT500 Mustang - 10.61@133 MPH - Press Drive Articles/Vids
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<blockquote data-quote="tt335ci03cobra" data-source="post: 16317014" data-attributes="member: 68944"><p>Gt500 cftp has better brakes, trans, lower c/d, lighterwheels, more hp, more average and peak torque and most importantly bigger exhaust tips.</p><p></p><p>Viper acr-e has 1700+ lbs of downforce at 175mph. 3350+1700 is 5050lbs at 175. It’s about 1200lbs at 100 iirc so 4550lbs effectively. </p><p></p><p>Gt500 cftp Probably has 300lbs at 100mph so 4375lbs. It has 115hp on the viper, and is effectively 175lbs lighter at 100mph. By 125mph the gt500 is probably 350-400lbs effectively lighter with the same 115hp advantage and I’m not even getting into torque though I should since gearing favors the gt500 being 3.73, same 1:1 forth vs 3.55 rear in the viper. Factor redline and power band, and the Ford has double the rpm to work with. Exit in 4th instead of 3rd in the viper and you’re killing potential. Look at their dyno graphs.</p><p></p><p>The gt500 cftp has a low center of gravity for a 4075lbs sc car because of the dct and inverted sc, carbon composit cradle, etc. it has 550lbs at 180mph so 4625lbs@180mph.</p><p></p><p>My point, anything over 100mph is going to the gt500 short of a 1.3+ g corner as the acr can hold almost 1.5g’s. That means it has the potential to hold more speed, if it can reach it to hold it. Problem is it’s accelerating at a lot less g force in a straight line. The car can hypothetically hold let’s say 175mph on the tight side of an oval, but it only reaches 145mph on its way to that corner. The gt500 can only hold 150mph on that same corner, but it reached 160 on its way there, and actually slowed a bit (hypothetical comparison)</p><p></p><p>My point is above 100mph, the gt500 is likely faster overall. It also effectively weighs less, has lighter wheels and bigger brakes so braking may not even go to the viper at very high speed.</p><p></p><p>The viper acr should have the advantage at low speed but crucially, it’s manual vs dct so the driver has to be flawless at pairing engine speed to cornering speed while balancing traction. He could nail the corner but be in 3rd at 65mph and slip far back before the next corner as the gt500 exits that same corner at 58 butis in 2nd and blows past to the next corner.</p><p></p><p>Some tracks the gt500 cftp will be as quick or quicker. I’ll go on the record. High speed tracks will be the gt500’s to lose. A place like vir or big willow for example will favor the gt500. A place like leguna is the acr-e’s all day.</p><p></p><p>Something tiny like limerock could actually go to the gt500. Between the dct/manual and wheel/brake difference, the gt500 will actually be formidable at low speed stuff. The acr-e shines in areas from 60-120imo.</p><p></p><p>It’s best lap times are at places like leguna. It’s worst are at tracks like vir</p><p></p><p>My opinions. I’m just a bench racer that happened to guess the gt500 would hit 10.6@133 3 months ago.</p><p></p><p>A track pack gurney flap gt500 with the regular wheels will be far behind a viper acr-e. Ford went nasa on this project. The weight is a non issue</p></blockquote><p></p>
[QUOTE="tt335ci03cobra, post: 16317014, member: 68944"] Gt500 cftp has better brakes, trans, lower c/d, lighterwheels, more hp, more average and peak torque and most importantly bigger exhaust tips. Viper acr-e has 1700+ lbs of downforce at 175mph. 3350+1700 is 5050lbs at 175. It’s about 1200lbs at 100 iirc so 4550lbs effectively. Gt500 cftp Probably has 300lbs at 100mph so 4375lbs. It has 115hp on the viper, and is effectively 175lbs lighter at 100mph. By 125mph the gt500 is probably 350-400lbs effectively lighter with the same 115hp advantage and I’m not even getting into torque though I should since gearing favors the gt500 being 3.73, same 1:1 forth vs 3.55 rear in the viper. Factor redline and power band, and the Ford has double the rpm to work with. Exit in 4th instead of 3rd in the viper and you’re killing potential. Look at their dyno graphs. The gt500 cftp has a low center of gravity for a 4075lbs sc car because of the dct and inverted sc, carbon composit cradle, etc. it has 550lbs at 180mph so 4625lbs@180mph. My point, anything over 100mph is going to the gt500 short of a 1.3+ g corner as the acr can hold almost 1.5g’s. That means it has the potential to hold more speed, if it can reach it to hold it. Problem is it’s accelerating at a lot less g force in a straight line. The car can hypothetically hold let’s say 175mph on the tight side of an oval, but it only reaches 145mph on its way to that corner. The gt500 can only hold 150mph on that same corner, but it reached 160 on its way there, and actually slowed a bit (hypothetical comparison) My point is above 100mph, the gt500 is likely faster overall. It also effectively weighs less, has lighter wheels and bigger brakes so braking may not even go to the viper at very high speed. The viper acr should have the advantage at low speed but crucially, it’s manual vs dct so the driver has to be flawless at pairing engine speed to cornering speed while balancing traction. He could nail the corner but be in 3rd at 65mph and slip far back before the next corner as the gt500 exits that same corner at 58 butis in 2nd and blows past to the next corner. Some tracks the gt500 cftp will be as quick or quicker. I’ll go on the record. High speed tracks will be the gt500’s to lose. A place like vir or big willow for example will favor the gt500. A place like leguna is the acr-e’s all day. Something tiny like limerock could actually go to the gt500. Between the dct/manual and wheel/brake difference, the gt500 will actually be formidable at low speed stuff. The acr-e shines in areas from 60-120imo. It’s best lap times are at places like leguna. It’s worst are at tracks like vir My opinions. I’m just a bench racer that happened to guess the gt500 would hit 10.6@133 3 months ago. A track pack gurney flap gt500 with the regular wheels will be far behind a viper acr-e. Ford went nasa on this project. The weight is a non issue [/QUOTE]
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2020 Shelby GT500 Mustang - 10.61@133 MPH - Press Drive Articles/Vids
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