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SVTPerformance's Chain of Restaurants
Road Side Pub
1/4 Mile Math: How much is too much?
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<blockquote data-quote="KingBlack" data-source="post: 16077177" data-attributes="member: 23148"><p>I've been doing some thinking on how best to approach the acceleration of a 10r80 car. It has a very low 1st gear, giving it an advantage before the race starts. Making matters worse for those that row their own gears, it has a spread of 7 gears until it gets to the 1:1 gear. The magnum has a spread of 4, with 2 overdrives.</p><p></p><p>That being said, from a purely theoretical standpoint, the 1st gen MT-82 may be a better transmission for the 1/4 mile racer. Why? the spread to 1:1 is 5 gears. The name of the game is average power over the distance being covered. I will build some datasets using spreadsheets to determine which what combination of manual transmissions (Mt-82 1st and 2nd gen, Magnum XL 2.97 and 2.67) and rear end (3.55, 3.73, 3.90 and 4.10) will yield the highest average Horsepower. I know 4.30 and lower gears are available, but this is a street car, so limits must be set.</p><p></p><p><span style="color: #00b300">Are any of you aware of a number, in particular torque, that is considered too much for a street application?</span> I want to avoid too much torque to the tires of a 29XX pound Fox Coupe. I will use the multiplication properties of the gears to target this value, if it exist. For the sake of this question, assume the car will run Nitto 555R tires on the street and strip</p></blockquote><p></p>
[QUOTE="KingBlack, post: 16077177, member: 23148"] I've been doing some thinking on how best to approach the acceleration of a 10r80 car. It has a very low 1st gear, giving it an advantage before the race starts. Making matters worse for those that row their own gears, it has a spread of 7 gears until it gets to the 1:1 gear. The magnum has a spread of 4, with 2 overdrives. That being said, from a purely theoretical standpoint, the 1st gen MT-82 may be a better transmission for the 1/4 mile racer. Why? the spread to 1:1 is 5 gears. The name of the game is average power over the distance being covered. I will build some datasets using spreadsheets to determine which what combination of manual transmissions (Mt-82 1st and 2nd gen, Magnum XL 2.97 and 2.67) and rear end (3.55, 3.73, 3.90 and 4.10) will yield the highest average Horsepower. I know 4.30 and lower gears are available, but this is a street car, so limits must be set. [color=#00b300]Are any of you aware of a number, in particular torque, that is considered too much for a street application?[/color] I want to avoid too much torque to the tires of a 29XX pound Fox Coupe. I will use the multiplication properties of the gears to target this value, if it exist. For the sake of this question, assume the car will run Nitto 555R tires on the street and strip [/QUOTE]
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1/4 Mile Math: How much is too much?
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