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icekoffee Samba Member
Joined: March 14, 2005 Posts: 1239 Location: DeSoto, Missouri
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Posted: Sat Jul 08, 2006 1:18 pm Post subject: tire size for stock thing |
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i know that 235/70 15s will fit under a stock thing... although i would like toknow if i could fit that wide of a tire on a 5 1/2 inch rim. any ideas? _________________ 1952 Zwitter
1959 23 Window
1963 Doubleturd
1958 Patina Beetle EJ25
1984 Vanagon Westfalia EJ25
1964 Lifted Mouse Grey Standard
1967 21 Window
1968 Double Bubble
1969 Westfalia
1961 Ragtop Beetle
1984 GTI
1961 Kombi |
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LEJ Samba Member
Joined: May 13, 2006 Posts: 115 Location: Ontario, Calif.
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Posted: Sat Jul 08, 2006 2:27 pm Post subject: |
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I have Mangles (typical VW) Chrome "wide" 5 wheels (15" x 5.5") on my 1973. I installed 205/75/15 tires I'm not sure if those 235's will fit but the 205's fit great and no rubbing. I read ""somewhere"" that on a stock Thing, the largest tire that would fit, on a (15") rim was a 205/75/15. I don't remember where I read it, but I'm happy with my choice _________________ The more you know, the more you know you don't know.
Last edited by LEJ on Sat Jul 08, 2006 2:31 pm; edited 1 time in total |
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Ferretkona Samba Member
Joined: December 03, 2005 Posts: 1306 Location: Columbia, CA
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Posted: Sat Jul 08, 2006 2:27 pm Post subject: |
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Mine are 5.5" , no problems. |
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icekoffee Samba Member
Joined: March 14, 2005 Posts: 1239 Location: DeSoto, Missouri
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Posted: Sat Jul 08, 2006 2:32 pm Post subject: |
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Ferretkona wrote: |
Mine are 5.5" , no problems. |
what size tire do you have _________________ 1952 Zwitter
1959 23 Window
1963 Doubleturd
1958 Patina Beetle EJ25
1984 Vanagon Westfalia EJ25
1964 Lifted Mouse Grey Standard
1967 21 Window
1968 Double Bubble
1969 Westfalia
1961 Ragtop Beetle
1984 GTI
1961 Kombi |
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Ferretkona Samba Member
Joined: December 03, 2005 Posts: 1306 Location: Columbia, CA
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Posted: Sat Jul 08, 2006 2:41 pm Post subject: |
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I thought I had 235's but I just looked and I have 215/75/15. |
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LEJ Samba Member
Joined: May 13, 2006 Posts: 115 Location: Ontario, Calif.
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Posted: Sat Jul 08, 2006 2:47 pm Post subject: |
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Another thing to consider is tire size vs speed vs RPM's
With 205/75/14's at 3,000 RPM's, your speed is 60 MPH
With 205/75/15's at 3,000 RPM's, your speed is 63 MPH
With 215/75/15's at 3,000 RPM's, your speed is 65 MPH
With 235/75/15's at 3,000 RPM's, your speed is 67 MPH
There is a significant ratio between engine speed, actual speed and engine cooling.
The slower the engine turns, the less air is blown across the cylinders. This is OK, if you're using stock tires and driving slow but add larger tires where your speed is higher and the engine speed is lower and you could run into a significant cooling issue. _________________ The more you know, the more you know you don't know.
Last edited by LEJ on Sat Jul 08, 2006 5:35 pm; edited 1 time in total |
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Ferretkona Samba Member
Joined: December 03, 2005 Posts: 1306 Location: Columbia, CA
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Posted: Sat Jul 08, 2006 3:33 pm Post subject: |
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LEJ wrote: |
Another thing to consider is tire size vs speed vs RPM's,,,,, The slower the engine turns, the less air is blown across the cylinders. This is OK, if you're using stock tires and driving slow but add larger tires where your speed is higher and the engine speed is lower and you could run into a significant cooling issue. |
Same difference with a taller 4th gear or a freeway flyer transmission. You could overheat the same motor by trying to drive too fast in a lower gear or too slow in a higher gear.
A larger tire is equal to changing the ring and pinion. When we move back to Yosemite I will have to put a larger motor in or reduce the tire size. |
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icekoffee Samba Member
Joined: March 14, 2005 Posts: 1239 Location: DeSoto, Missouri
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Posted: Sat Jul 08, 2006 10:59 pm Post subject: |
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would i be ok running 215/75 15s with a 1914cc? _________________ 1952 Zwitter
1959 23 Window
1963 Doubleturd
1958 Patina Beetle EJ25
1984 Vanagon Westfalia EJ25
1964 Lifted Mouse Grey Standard
1967 21 Window
1968 Double Bubble
1969 Westfalia
1961 Ragtop Beetle
1984 GTI
1961 Kombi |
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Towel Rail Horizontally Opposed
Joined: April 15, 2005 Posts: 4622 Location: SE CR IA US NA PE
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Posted: Sun Jul 09, 2006 2:38 am Post subject: |
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icekoffee wrote: |
would i be ok running 215/75 15s with a 1914cc? |
Possibly. It all depends on whether you have all the necessary tin and seals, and how you plan to drive. |
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