Speedo substitute

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Fri 8 Mar 2002 20:18
Speedo substitute - Peter Mason
The speedo on my Pug 305 has broken, and I'm having difficulty finding a secondhand unit. In the meantime I'm judging my speed using the rev. counter. (approx. 20MPH per 1000 revs in 5th, I think..) can anyone tell me the correct MPH per 1000 Revs. in 4th. and 5th. gear? I can then mark the counter face and stay within the speed limits!
Any help gratefully received.
P.
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Fri 8 Mar 2002 22:12
Re: Speedo substitute - Andy Bairsto
Buy a Gps they have a speedo fuction far more accurate than any car speedo
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Fri 8 Mar 2002 22:26
Re: Speedo substitute - Tomo
A bit expensive? Like using a laser device when a tape measure would do?
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Sat 9 Mar 2002 00:14
Re: Speedo substitute - James
It's a bit more than 20mph/1000rpm in fifth, but if you allow that in 4th (which is what you'll be in most of the time where 30/40 limits are concerned) you should be safe. I'm assuming your 305 is geared like ours, which is a 1600. I'll make a more careful note next time my GF lets me use it...
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Sun 10 Mar 2002 17:17
Re: Speedo substitute - James
Actually, your guess was better than mine. 5th appears to be about 21mph/1000rpm with 4th quite a bit lower (16/1000-ish). Of course, I've no idea how accurate the speedo is...
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Fri 15 Mar 2002 09:42
Re: Speedo substitute - Peter M
James,
Thanks for the info, I think I can stay legal using that conversion of revs. to MPH.
Peter
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