1982chevycamaroz28

say like in the 1/4 mile if u have a taller tire will it get u up to a higher speed at a lower rpm, becuz since ur able to go over a larger amount of ground with one rotaion of a tire than u can with a smaller one. becuz i was watchin junkyard wars and they said on one of the dragster shows that with a bigger tire u can cover more ground than with a small tire but with a smaller tire u will get to top speed fast but top out. can anyone help. thanx

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mods to car
new ignition system, edelbrock intake,600 cfm q-jet,th-350 tranny, used black interior, grant stering wheel, accel plugs and wires, hookercat back, b&m shifter, emmission delete package, computer delet package and soon ac delete and in future-- hooker sump comp headers, posi rear, drag slicks and all new rims probably weld rims, line lock, 8 point roll cage, strut tower brace, drag shocks, sfc, new edelbroc 600 carb, nitrous and a weiand supercharger or a 350 or 400 block

slowV8berlinetta

sounds like you're right on. a taller tire is like a numerically lower gear ratio. Getting a taller(or shorter) tire will also mess up your speedo though, so either deal with it or change the speedo cable gear in the tranny

iroc5speed

sounds right to me. You should just get a set of drag radials for the track(rear only) and bolt them on only when drag racing. Better traction, you can get them a litle taller too, but I wouldn't go overboard especially if you have 2.73s

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'86 IROC 5-speed
305 LG4
edelbrock performer rpm intake
edelbrock 600 cfm carb
msd pro billet hei distributer
'95 3.23 rearend
hotchkis rear suspension
PST front polygraphite suspension
"speed kills. buy a f@&d, live forever."

Mark A Shields

Yep, I saw someone refer to it as the cheap man's gear mod. By getting a shorter tire you up your gear ratio numerically.

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"Rice burners are like tampons...Every pu$$y has to have one"
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

85transamtpi

Changing the tire is the same as changing the rear end ratio. Most of the time you wouldnt want to do this (it would probably make you slower with anything less than 3.73's out back), unless you have like 4.1x gears and are maxing out in the quarter mile or have really bad traction. You will have less mechanical advantage so the tires will be harder for the engine to turn. Its kind of a trade off.
peace