Hey Lambeau,
I really like the pics of those big tars you have on your 20s and those big 17 dedicated snows should do well too, even if they are a tad wider
than std 17.
Charts below showing rolling size diffs and speedo diff. Looks like your
big 20s are already showing ~4 mph less than stock, and the winter
big snows should show ~ 2 mph less than your 20s. Tossing that all
into the calcs, with the already optimistic speedos we have and you
get: who the hell knows, lol! But, definitely lower rpms at speed!
GL,mD
Tire size results
SpecificationSidewallRadiusDiameterCircumferenceRe volutionsSpeedometerOdometerDifference 235/65-176.0"14.5"29.0"91.2"695/mi60MPH10000miN/A 265/70-17 7.3"15.8"31.6"99.3" 638/mi 55MPH 9184mi 8.9%
Tire size results
SpecificationSidewallRadiusDiameterCircumferenceRe volutionsSpeedometerOdometerDifference 295/45-205.2"15.2"30.5"95.7"662/mi60MPH10000miN/A 265/70-17 7.3"15.8"31.6"99.3" 638/mi 58MPH 9635mi 3.8%
Tire size results
SpecificationSidewallRadiusDiameterCircumferenceRe volutionsSpeedometerOdometerDifference 275/40-204.3"14.3"28.7"90.0"704/mi60MPH10000miN/A 295/45-20 5.2" 15.2" 30.5" 95.7" 662/mi 56MPH 9412mi 6.2%
This data never comes out in a post in the proper format, so here's the link...it's easy to use:
http://www.powerdog.com/tiresize.cgi