rjbrookes
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| posted on 8/7/06 at 10:01 AM |
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How slower will i be???
SVA speedo calibration.... its pasted but need to adjust it further.
Ok current tyre is 195/65 R14 and this gives indicated speed of 50mph with an actual of 40mph, its basically 10mph over the actual/true speed.
I can fix that easy with the speedo healer calculator.
I want to fit the post SVA wheels which are 205/60 R13.
So whats the total error now so i can put the correct adjustment through the speedo healer.
I am not clever enough to work it out, sure some smarty pants on here can give me the answer!
So far i have worked out
Circumference of 195/65 r14 = 1915.3mm
Circumference of 205/60 r13 = 1811.5
Diameter 195/65 r14 = 609mm
Diameter 205/60 r13 = 576mm
Thanks in advanced!
Russ
SVA past this morning!!!! woo hoo
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scottc
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| posted on 8/7/06 at 10:11 AM |
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not sure if this is right, but your new tyres have a 5% smaller circumfrence. therefore while your speedo says 50 you'll be doing 38 MPH.
EDIT: Assuming you don't fix the speedo.
[Edited on 8/7/06 by scottc]
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Mark Allanson
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| posted on 8/7/06 at 02:08 PM |
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try this
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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