Dave Eastwood (Gadgetman) Posted April 21, 2015 Posted April 21, 2015 Well that would be a pass then, though I'm sure the tester was desperate to pick on something during the re-test! Still, here we go: And the the vital piece of paper, at last: Just leaves the the battle with the DVSA now. 8 Quote
XTR2Turbo Posted April 21, 2015 Posted April 21, 2015 well done It might yet be driven to Stoneleigh ... fingers crossed Quote
KugaWestie Posted April 21, 2015 Posted April 21, 2015 Well done Dave Have I missed something here - you said Retest? What happened on original test then? Quote
Dave Eastwood (Gadgetman) Posted April 21, 2015 Author Posted April 21, 2015 Well done Dave Have I missed something here - you said Retest? What happened on original test then? I won't repeat the full details, they're in a different thread, but basically it failed on the speedo calibration. The Stack speedo uses an odd system to calibrate itself, that isn't adjustable/tweakable and doesn't (being American made, I guess) allow the margin of error that we have in the UK. Essentially, first time round, it was reading only slightly over true road speed at 30/40 mph, till by the time you got to an indicated 70, you were actually doing a measured 70, and above this, the speedo said you were doing lower speeds than you actually were. Because the speedo can only be calibrated by driving a fixed (two mile) distance in set up mode, I couldn't fix it there and then in the lane. I shortened my calibration "course" to about 1.8 miles, which made the speedo indicate 70 mph for a true road speed of 65 mph (GPS measured) and on the re-test, this was sufficient "margin". 1 Quote
KugaWestie Posted April 21, 2015 Posted April 21, 2015 I won't repeat the full details, they're in a different thread, but basically it failed on the speedo calibration. The Stack speedo uses an odd system to calibrate itself, that isn't adjustable/tweakable and doesn't (being American made, I guess) allow the margin of error that we have in the UK. Essentially, first time round, it was reading only slightly over true road speed at 30/40 mph, till by the time you got to an indicated 70, you were actually doing a measured 70, and above this, the speedo said you were doing lower speeds than you actually were. Because the speedo can only be calibrated by driving a fixed (two mile) distance in set up mode, I couldn't fix it there and then in the lane. I shortened my calibration "course" to about 1.8 miles, which made the speedo indicate 70 mph for a true road speed of 65 mph (GPS measured) and on the re-test, this was sufficient "margin". I had missed all that! All water under the bridge now though Quote
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