Pdlewis
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| posted on 27/2/09 at 07:50 PM |
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Speed healer calibration
Hi,
I have a yellow box speed healer but it works in % difference and i dont have a clue how to work out the % between my car and the bike.
I have the following setup:
R1 2002/2003
3.62 diff
195/45/15 wheels
Any ideas how i would work it out?
Cheers
[Edited on 27/2/09 by Pdlewis]
Build Photo Album
Updated 05/02/2009
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Paul TigerB6
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| posted on 27/2/09 at 07:58 PM |
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There is an online calculator on the Healtech website. I used this to calculate an 01 R1 and it was spot on according to GPS. Just adjust the sprocket
size to give you 3.62:1 as accurately as you can. You should end up with a figure of around -30% or so. If you struggle, give me a shout and
i'll work it out for you
http://www.healtech-electronics.com/
PS those tyres are a high profile - definately a 65 profile? Most use 195/50/15's dont they
[Edited on 27/2/09 by Paul TigerB6]
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Pdlewis
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| posted on 27/2/09 at 08:05 PM |
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Sorry they are 45 no 65
Build Photo Album
Updated 05/02/2009
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Paul TigerB6
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| posted on 27/2/09 at 08:09 PM |
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Curiosity got the better of me - i make it -38.8% then
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Pdlewis
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| posted on 27/2/09 at 08:42 PM |
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Oh c@*k I have a yellow box v3 and it only goes +/- 28%
Build Photo Album
Updated 05/02/2009
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hobbsy
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| posted on 27/2/09 at 08:53 PM |
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Yeah I had to change my yellow box (as fitted to the car when I bought it) to a Speedohealer as it was on max adjustment and was still overreading on
the speed (and therefore the odo) by quite a margin.
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Paul TigerB6
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| posted on 27/2/09 at 09:04 PM |
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Ooops - sorry!! 
I take it all back - its 28% - honest!!
Dont forget to put in a bit of leeway to get through SVA - maybe -40% or so
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Pdlewis
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| posted on 27/2/09 at 09:12 PM |
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Cheers for the help at least i know the setting for when i get a different unit.
bit gutted after fitting it today
Build Photo Album
Updated 05/02/2009
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adithorp
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| posted on 27/2/09 at 09:16 PM |
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I can confirm that the yellow box won't do for your setup. I only just got enough correction with mine and I'm on a 3.21 diff'.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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