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  #1  
Old October 14th 2002, 15:41
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MattKab MattKab is offline
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Rear wheel drive speedo

Any suggestions on how a speedo cable could be driven by the rear axle? Perhaps 1:1 gearing from the output flange.

I'm running 215/40ZR17 upfront (596mm) and the correct ~636mm diameter at the rear using 225/45ZR17.

Any ideas?

Matt
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Old October 15th 2002, 01:57
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Andy White Andy White is offline
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Hi Matt,

You could always just get the speedo recalibrated for the new O.D.

Regards,

Andy
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'55 oval GL
944T Calipers and discs front & rear.
17" Turbo rims 205/40 front, 215/45
rears
230BHP TIV fuel injected.
IRS+Berg 5 speed box.
Build in progress.
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  #3  
Old October 15th 2002, 09:02
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Steve C Steve C is offline
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Hi

The new VDO speedos use an impulse from a sender, you could stick some magnets on your cv to produce an impulse for the speedo.

Steve C
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  #4  
Old October 15th 2002, 13:39
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MattKab MattKab is offline
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Smile

Can the speedo be recalibrated?

I would like to use my stock speedo, as anything else looks odd in the 1303 'hole.

I'll check the VDO website.

Thanks,

Anymore ideas?
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  #5  
Old October 15th 2002, 18:16
kdanie kdanie is offline
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Most speedometer shops can set up a small gearbox to change the ratio to correct for different tire sizes. Not a big deal, it just fits between the speedo and the cable.
ken
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