26" tires do they increase or lower MPH

[wiked87gn]

26" tires do they increase or lower MPH on the big top end, i just purchased a set of 26x10.5x15 MT ET Drags, has anybody had any good luck with this tires?

 

[stickybones]

Assuming stock trans and rear (for gear ratios) I think the answer is "it depends".

Since stock tires are 26" tall, I guess it would be inappropriate to say they're either increasing or decreasing MPH at the big end. However, with that said, if your car is strong enough to be winding out 3rd gear before crossing the finish line with 26" tires (and I would think it should be based on your list of goodies in your signature), then something taller may help you increase MPH at the big end.

 

[crownvic96]

26" is the stock rolling diameter. at least on 86-87 turbo buicks. assuming you have the stock 3.42:1 rear axle ratio and a 2004r you would have no speedometer error.

 

[crownvic96]

edit: double post