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Gearbox build
- K30DPC
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and change it after about 600 miles and very carefully check whats come out. If You will see any shining bits of metal it will be a sign that something could go wrong.
my BB1 UKDM
- Froidas
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Could anyone remind me how to calculate that "rolling radius"? I need it for 205/60 R16 tyre.
I tried many tyre size calculators online, but not at least one gave the result of 184,2 cm for 215/40 R17 or 185 for 205/45 R17. Until I won't get the same number for these tyres, I can't trust I have the correct radius for my needed tyre.
And I didn't have any problems with this radius in page 5, but I can't remember, how I got it
I tried many tyre size calculators online, but not at least one gave the result of 184,2 cm for 215/40 R17 or 185 for 205/45 R17. Until I won't get the same number for these tyres, I can't trust I have the correct radius for my needed tyre.
And I didn't have any problems with this radius in page 5, but I can't remember, how I got it

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- Donald
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More than likely I'm not accounting for something, not accounting for the tyre being squished a bit or something, I assume the actual rolling radius is from the wheel centre to the furthest point of contact with the road?
Froidas you forgot to change the sidewall part to 0.4 (40%) instead of 0.6 (60%). This gave figures closer the one you had before: http://www.kouki.co.uk/utilities/visual ... calculator
Froidas you forgot to change the sidewall part to 0.4 (40%) instead of 0.6 (60%). This gave figures closer the one you had before: http://www.kouki.co.uk/utilities/visual ... calculator
- Froidas
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Hey !!!! That is my old tyre size calculator I used for several years, but couldn't find now 
I found this and calculated 1896.89 mm too :
http://www.clarks-garage.com/shop-manual/trans-02.htm
So to sum it up, I don't know how everybody got those numbers 2 years ago, but I will use your given calculator for what I need now. I will sleep better now, thank you Donald

I found this and calculated 1896.89 mm too :
http://www.clarks-garage.com/shop-manual/trans-02.htm
So to sum it up, I don't know how everybody got those numbers 2 years ago, but I will use your given calculator for what I need now. I will sleep better now, thank you Donald

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- Donald
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So for future reference:
