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| redrocket |
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im putting 235/45/17's on my rig and was woundring if it will rev diffrently at 100 and will it throw out my speedo a bit?
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| Interceptor |
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shouldnt do..... what car do you have?
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| bowsaw |
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I have the same tyres/rims as you, my speedo is out 4km.h, at 140, so at 100, it would be bugger all.
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| Disco Frank |
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bowsaw wrote: I have the same tyres/rims as you, my speedo is out 4km.h, at 140, so at 100, it would be bugger all. neil it is out 4kmhr all over the speed range!
if it out at 140 it is out at 30kmhr
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| voxace |
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Disco Frank wrote: neil it is out 4kmhr all over the speed range!
if it out at 140 it is out at 30kmhr Nah, it works as a percentage. 5km/h out at 100 = 10km/h out at 200. |
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| madmax |
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redrocket wrote: im putting 235/45/17's on my rig and was woundring if it will rev diffrently at 100 and will it throw out my speedo a bit?
As long as you maintain the same overall diametre the speedo should remain the same. Remembering that all speedos vary slightly from a new tyre to a worn tyre.
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| voxace |
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| Disco Frank |
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voxace wrote: Disco Frank wrote: neil it is out 4kmhr all over the speed range! if it out at 140 it is out at 30kmhr Nah, it works as a percentage. 5km/h out at 100 = 10km/h out at 200. so u saying that the tyre somehow mystically gains height faster your drive?? if the sidewall heigth of the tyre is incresead ( rolling distance ) by X% then the spedo will be out at by X% / time at all speeds given that spead is distance/time!
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| memnoch |
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the missus put 17, she had 15 on her fairmont, she is about 4ks out
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| voxace |
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Disco Frank wrote: voxace wrote: Disco Frank wrote: neil it is out 4kmhr all over the speed range! if it out at 140 it is out at 30kmhr Nah, it works as a percentage. 5km/h out at 100 = 10km/h out at 200. so u saying that the tyre somehow mystically gains height faster your drive?? if the sidewall heigth of the tyre is incresead ( rolling distance ) by X% then the spedo will be out at by X% / time at all speeds given that spead is distance/time! Frank, Frank, Frank - Sober up and have a think about it mate. Say if you double your rolling distance would you agree that at when your dash reads 10km/h your really doing 20km/h? By your theory when the dash reads 100km/h we would only be doing 110km/h...lol (with monster truck tyres!!!) |
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| madmax |
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memnoch wrote: the missus put 17, she had 15 on her fairmont, she is about 4ks out
Its relative to the width & profile of the tyre you put on it. Have a play with the tyre size calculator link that voxace provided. If I put 235/45/17 instead of my standard 205/65/15 my speedo will be out by .6% (reading slightly faster than actual)
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| Disco Frank |
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meh voxace all i know is the spedo will be out by the same amount the whole time. and not 5kmhr at 40 then 10km at 100!
i
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| voxace |
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Disco Frank wrote: meh voxace all i know is the spedo will be out by the same amount the whole time. and not 5kmhr at 40 then 10km at 100!
i It will be out by a fixed percentage, not a fixed km/h value. |
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| lostdude |
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hey guys, i went to that site and did it for my tires and it said that my new tires is 0.4% too fast compared to the stock tires,i have a au police cluster , so does anyone know how much do i adjust for it?
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| LG |
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