Yep 215s will correct your speedo to pretty much perfect
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| Jimny speedo v bigger tyres https://www.auszookers.com/forum/viewtopic.php?f=37&t=33533 |
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| Author: | 357 [ Tue Jun 19, 2012 6:35 pm ] |
| Post subject: | Jimny speedo v bigger tyres |
Alright, I have searched and failed to come up with a clear answer, I know as soon as you change the tyre size the speedo will be out, but what can I do to fix the speedo? I want to fit 215/75/15 tyres in place of the standard tyres has anyone worked around this or just dealt with the speedo being out slightly |
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| Author: | jimny_timmy [ Tue Jun 19, 2012 6:39 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
What model jimny have you got? 215's on a VVT will actually put it back to normal. Edit: jaycar also do a DIY kit to fix it too |
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| Author: | 357 [ Tue Jun 19, 2012 8:04 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
2008 vvt manual |
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| Author: | jimny_timmy [ Tue Jun 19, 2012 8:07 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
Yep 215s will correct your speedo to pretty much perfect
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| Author: | 357 [ Tue Jun 19, 2012 8:11 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
So my speedo is out already? |
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| Author: | jimny_timmy [ Tue Jun 19, 2012 8:25 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
If you're running 205/70r15, yes. Go for a run with a gps device and you'll see it reads approx 5km/h slower than what it says on the speedo
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| Author: | 357 [ Tue Jun 19, 2012 8:30 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
I've actually noticed that, to come to think of it I've noticed that in all the cars I've owned |
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| Author: | Buckshot [ Wed Jun 20, 2012 9:23 am ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
jimny_timmy wrote: Yep 215s will correct your speedo to pretty much perfect Yep, same thing happened on my 2008 Jimny. |
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| Author: | Reubs [ Wed Jun 20, 2012 9:45 am ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
357 wrote: I've actually noticed that, to come to think of it I've noticed that in all the cars I've owned Virtually every new car comes out of the factory that way. 3-7% under is common. |
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| Author: | fully sick coily [ Thu Jun 21, 2012 7:23 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
i have 30's on my coily and it isnt out is this normal? |
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| Author: | Reubs [ Fri Jun 22, 2012 11:29 am ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
fully sick coily wrote: i have 30's on my coily and it isnt out is this normal? If you have a transfer from a WT fitted which is designed to have 3.7 diff gears, then the speedo would be close enough to seem correct. Speedo gears corresponding to a 3.7 diff with 3.9 diffs will give the speedo 5% correction already, factor in 5% error from the factory and your 30" tyres are close enough to the 10% error. |
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| Author: | sideways [ Fri Jun 22, 2012 9:53 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
AFIAK in Aus, speedos have to read between between 0 and 10% lower than the actual speed.... Measured at 40 and 100km/h. (I think) My 1l with 30s still reads 3-4km slow, well it did until the speedo cable snapped the other day. 
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| Author: | Mike57 [ Fri Jun 22, 2012 10:45 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
My 2009 is now spot on with 215/75's |
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| Author: | jimny_timmy [ Fri Jun 22, 2012 10:56 pm ] |
| Post subject: | Re: Jimny speedo v bigger tyres |
I bought the speedo correction kit from Jaycar today... Fffffuuuuuuck it's gonna take aaaaages to just build the thing lol |
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