Cougar wheels off - ST170 wheels on

S

smithtrevor

I have managed to pick up a 4 set of ST170 wheels but came with no "nuts." After removing one Cougar wheel & replacing with one ST170 wheel the Cougar wheel nuts are a NO NO !!!!! Clearly a Cougar wheel nut is way to short & not enough meat on it !!! Or am i over reacting here ?:eek:
 
Wheel nuts arrived, wheels on & looks great !!! But.....the ST wheels even though they have a low profile tyres are an inch taller when placed side by side with an original Cougar wheel. I am told that within "car configuration" using IDS there is an option that allows the instrument cluster to be re-calibrated for 17" wheels that will correct the speedo, otherwise judging those "average speed traps" is going to be a nightmare !
 
smithtrevor said:
Wheel nuts arrived, wheels on & looks great !!! But.....the ST wheels even though they have a low profile tyres are an inch taller when placed side by side with an original Cougar wheel. I am told that within "car configuration" using IDS there is an option that allows the instrument cluster to be re-calibrated for 17" wheels that will correct the speedo, otherwise judging those "average speed traps" is going to be a nightmare !
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According to my Tom-Tom GPS, the Cougar speedo is 'fast' by almost 9mph at 70mph with standard wheels and tyres - both of my Cougars mis-read to the same amount, so I'm guessing they all do. I had previously checked it against my 2007 Mustang and my Father-in-Law's Audi RS6, both of which have an electronic speedo - they both display exactly the same as the GPS.

Obviously when accelerating and decelerating there is a 3-sec lag between GPS updates, but for general motoring I find that it's actually more accurate and reliable than the car-speedo.
Especially useful here in Germany where all speeds are in Km (and the Km scale is virtually unreadable on the Cougar dial at the best of times - the alternative would be swapping them over or applying little red dots adjacent to the 'critical' speeds)
 
Tyre size on 17s should be 215/45/17 for the speedo to read correctly, remember its not just your speedo that's out but also your odometer!
 
Yes they are the tyres as quoted above on all 4 corners, so no issue then...I will leave alone !!!
Thanks....TS
 
I stripped the dash, opened up the dial cluster and then went for a calibration drive with my sat nav on the dash, using a trial and error method to keep taking the speedo off and repositioning it on it's spline. I've ended up with my speedo reading just 1 MPH over GPS measured speed, running 225/45/17 tyres.
 
Relliott6879 said:
I stripped the dash, opened up the dial cluster and then went for a calibration drive with my sat nav on the dash, using a trial and error method to keep taking the speedo off and repositioning it on it's spline. I've ended up with my speedo reading just 1 MPH over GPS measured speed, running 225/45/17 tyres.
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When Alan (aka Pid) did my Elglow dials a few years back he positioned the dial directly onto the spline to it reads exactly bang on with my GPS on the SatNav, it's not even out by 1mph, it's absolutely bang on!! LOL!!! How jammy was that!? lol!!!
 
WildV6 said:
When Alan (aka Pid) did my Elglow dials a few years back he positioned the dial directly onto the spline to it reads exactly bang on with my GPS on the SatNav, it's not even out by 1mph, it's absolutely bang on!! LOL!!! How jammy was that!? lol!!!
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Oi! how dare you! That's proper skill mate...;)
 
WildV6 said:
When Alan (aka Pid) did my Elglow dials a few years back he positioned the dial directly onto the spline to it reads exactly bang on with my GPS on the SatNav, it's not even out by 1mph, it's absolutely bang on!! LOL!!! How jammy was that!? lol!!!
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Pid_16V said:
Oi! how dare you! That's proper skill mate...;)
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WildV6 said:
LOL!!!! Indeed it is Al, bet no-one else other than you could possibly do this.....it's all in the eye....and I do believe you had a cut finger too at the time lol!!!
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Pid_16V said:
Mate, i've always got a cut finger (y):). Like most things, there is a knack.
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Al does indeed have this 'down pat'. When he fitted my Speedhut dials at my first ever show (Harewood 2009, I think?), they too were absolutely smack-on first time.

Alan Pidduck: The man, the legend. :)
 
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