Author Topic: Lets Talk Tires  (Read 1833 times)

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Offline egspot

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Lets Talk Tires
« on: April 07, 2006, 10:08:50 PM »
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« Last Edit: April 08, 2006, 04:12:34 PM by egspot »

Offline Chris

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Lets Talk Tires
« Reply #1 on: April 07, 2006, 11:21:04 PM »
you need them, sorta

Offline egspot

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Lets Talk Tires
« Reply #2 on: April 08, 2006, 08:02:05 AM »
Specifics?

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Offline Chris

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Lets Talk Tires
« Reply #3 on: April 08, 2006, 08:48:46 AM »
well if you put smaller tires up front and keep the same in the rear how will that affect your rpm's ?? It will affect the speed readings.

Offline egspot

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Lets Talk Tires
« Reply #4 on: April 08, 2006, 08:59:32 AM »
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« Last Edit: April 08, 2006, 04:05:15 PM by egspot »

Offline Chris

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« Reply #5 on: April 08, 2006, 09:07:13 AM »
so then you would be changing your tires in the rear, so yes that would affect your rpm's

Offline silas

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Lets Talk Tires
« Reply #6 on: April 08, 2006, 04:34:24 PM »
here's my $.02

afaik, in 1964 vw used 165's on 4.5\" rims out of the factory. so thats a 6.49\" wide tire on a 4.5\" wide rim.

on the front, alot of acvw guys run 125's, 135's and 145's on 4.5\" rims. so that's 4.92\"s, 5.31\"s, and 5.7\"s of tire on a 4.5\" rim.

on the back, alot of acvw guys like to run 205's on either 5.5\" or 6\" rims. so thats 8.07\"s of tire on a 5.5\" or 6\" rim.

some guys even cram 215's on a 6\" rim. thats 8.46\"s of tire on a 6\" rim.

some like 185's or 195's on 5.5\" or 6\" rims on the back. thats 7.28\"s or 7.68\"s of tire on a 5.5\" or 6\" rim.

these are just combos that seem to work. obviously there are plenty of options.

what is important is making sure you get a good contact patch of tire to road.

for instance, if you were to stuff a 135 on a 6\" rim, it would be stretching the limit and you'd most likely start riding the sidewall and probably have traction issues shortened tire life.

i've seen 135's stuffed on 5.5\" rims before, but i think even that is pushing it and you start to get a little balloon action and it just doesnt look right.

likewise if you stuff a really wide tire on a really narrow rim. the middle of the tire will have the tendency to concave and you'll get odd wear patterns and poor traction.

like 1976bus said, a smaller tire than stock up front will turn your speedometer faster than normal and make you feel like you're going real fast.

and a larger tire in the back will affect rpms and shift points.