speedo accuracy

speedo accuracy

Author
Discussion

mlumb

Original Poster:

2,420 posts

273 months

Monday 22nd July 2002
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who said cerb speedos over read? got stopped on m18 last night at 8.45pm 'doing an average of 98.5mph over .44 of a mile between to fixed points',no fixed penalty but a court summons instead!! the thing is i'm sure i wasn't going that quick. any advice? absolutely gutted............ mind you at least its reliable,my peugeot 405 diesel blew its head gasket for the second time in 4 months on saturday 110 miles from home!! what a weekend.

olly

2,174 posts

291 months

Monday 22nd July 2002
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Bad luck Mike.... Don't know what to suggest, but I'm sure other people will....

>> Edited by olly on Monday 22 July 08:19

joospeed

4,473 posts

285 months

Monday 22nd July 2002
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bad luck old bean :-(
I've driven a couple of cerbies with GPS in them, both cars UNDER-READ by a couple of mph at 30mph (beware), then gradually towards 100mph they get very accurate (seemed to be bang on at 100 mph in both cars as far as I could tell) and held this up to 130 mph - above that I don't know cos my private test track became a bit bendy (!). Unless something goes horribly wrong over 130 mph it seems they are very accurate indeed.