Gaz7612
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| posted on 25/4/08 at 10:39 AM |
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Speedo Gauge
Hi everyone
Is there a after market speedo that works with the type 9 speedo cable?
many thanks
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02GF74
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| posted on 25/4/08 at 11:02 AM |
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yes - Smiths do a mechanical gauge and probably others too.
the problem though is calibration - you need to supply the details at the time the gauge is assembled; get it wrong and you need to pay again to have
this done - this cost is the reason why almost all after market speedo guages are electronic as it allows the user to set them up.
for a mechanicl speedo, the speed indicated depends on speedo drive gear, diff ration and tyre diameter - all 3 can vary from the manufacturers
original model hence you need to be pretty sure you have the correct infor for calibration.
dammit - I keep writing guage -why is that???
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Gaz7612
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| posted on 25/4/08 at 11:11 AM |
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Thanks for the reply.
Think I'll be going for a digital one then.
now I've got to choose some I like
Why aren't things ever easy!!!!!
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clairetoo
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| posted on 25/4/08 at 03:55 PM |
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quote:
Originally posted by Gaz7612
Why aren't things ever easy!!!!!
If it was easy , it wouldnt be so much fun 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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Macbeast
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| posted on 25/4/08 at 04:30 PM |
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You can have your mechanical gauge adjusted at Speedy cables.
http://www.speedycables.com/calibration.htm
You chalk mark where the tyre touches ground and fix some kind of pointer to the gauge end of the cable. Then push the car forward say 20 feet and
count the number of revolutions on the gauge end. From this and the rolling radius of your wheel Speedy can apparently calibrate your speedo.
This is the theory anyway. Maybe someone on here has had it done ?
I'm thinking that maybe it's as cheap and easy to buy the electronic gauge. Above calibration costs about £50.
[Edited on 25/4/08 by Macbeast]
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Mole
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| posted on 25/4/08 at 07:03 PM |
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quote:
Originally posted by Gaz7612
Thanks for the reply.
Think I'll be going for a digital one then.
now I've got to choose some I like
Why aren't things ever easy!!!!!
Doesn't need to be digital, just electronic.
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rusty nuts
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| posted on 25/4/08 at 07:07 PM |
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Had a Mini speedo recalibrated a few years ago by Speedy Cables but if you have to pay for calibration on top of the purchase price it could be
expensive. At least with the electronic type if you change diff ratio, wheels tyres etc you can reset it yourself.
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Gaz7612
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| posted on 25/4/08 at 07:18 PM |
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quote:
Originally posted by rusty nuts
Had a Mini speedo recalibrated a few years ago by Speedy Cables but if you have to pay for calibration on top of the purchase price it could be
expensive. At least with the electronic type if you change diff ratio, wheels tyres etc you can reset it yourself.
Thats very true yes. I'll be looking for a electronic one now
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Schrodinger
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| posted on 26/4/08 at 06:12 PM |
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ETB do mechanical guages and will calibrate to match your axle gearbox ratios
Keith
Aviemore
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02GF74
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| posted on 29/4/08 at 09:39 AM |
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not true - when I was looking at speedo there was one or two that would include calibration in the purchase price.
I wasn't confident enough that I would get it right so I paid the extra for an electronic one.
As it turned out, ,my calibration for this guage was within 5 %; but would have failed SVA as it was reading low.
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