wheel to gear ratio

[prostr340duster]

Hello all. Looking to buy a new set of tires for my duster. Presently I have mt sportsman pro's 29x15.50x15 and a 4:10 gear what changes would I get if I went with a 28 inch tall mt street radial with that gear or should I stay with the taller tire and switch up to a 4:30 gear. The car is a street strip car. Drive to the track and run 12:50's put the air cleaner back on then drive home. Just curious Thanks Jerry

 

[bobs340dartsport]

Reducing your tire diameter from 29 to 28 inches would result in the same ratio if you kept the 29" tire an switched to a 4.30:1 gearset. Probably not a whole lot of difference from what car does now. Either way is going to cost you $$.

 

[mullinax95]

Reducing your tire diameter from 29 to 28 inches would result in the same ratio if you kept the 29" tire an switched to a 4.30:1 gearset. Probably not a whole lot of difference from what car does now. Either way is going to cost you $$.

That's right!

You would have to let one stay the same and change the other in order to have a difference.

 

[perfacar]

hi, something to consider, when you put a deeper gear in the rear, you will have more gear ratio in high gear. this makes for a longer leverage ,which will move car faster. a taller tire./deeper gear will be quicker. keeping your tire and lowering gear ratio will be a worthwhile change.