The Blue Mule
Expert Class
Posts: 122
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posted November 23, 2006 06:11 AM
So what does the speedo key off of??
I was looking at Texas mile stuff and saw a zx-14 had competed and wondered what is done to let the bike stretch its legs a bit,lol.
http://www.texasmile.com/documents/TEXASMILETOPSPEEDS_007.xls
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CaptainZX14
Expert Class
Posts: 223
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posted November 23, 2006 06:58 AM
http://www.texasmile.com/documents/TEXASMILETOPSPEEDS_007.xls
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If in doubt, Gas it!
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The Blue mule
Expert Class
Posts: 122
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posted November 23, 2006 07:17 AM
what am I doing wrong????
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CaptainZX14
Expert Class
Posts: 223
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posted November 23, 2006 07:45 AM
quote:
what am I doing wrong????
To create a URL link, you need to put the tags around the URL:
[ url ]www.yourURLhere.com[ /url ]
Just remove the spaces in the tags to make it work.
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If in doubt, Gas it!
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CaptainZX14
Expert Class
Posts: 223
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posted November 23, 2006 07:52 AM
quote:
So what does the speedo key off of??
The engine sprocket cover has a speed sensor attached to it, I think that it picks it off of the sprocket nut. So, if you change your gearing, it throws off the speedo calibration. I hope this was what you were asking?
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If in doubt, Gas it!
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INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
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posted November 23, 2006 03:12 PM
quote:
quote:
So what does the speedo key off of??
The engine sprocket cover has a speed sensor attached to it, I think that it picks it off of the sprocket nut. So, if you change your gearing, it throws off the speedo calibration. I hope this was what you were asking?
I thought it was just me when my speedo was closer to being accurate when comparing to my gps after putting a 190/55 on .
My speedo was 10mph off stock , but now it's about 5 mph off .
It would be a similar effect like a sprocket change in that case effecting the speedo.
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'06 Passion Red ZX-14
*Lee*
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BobC
Pro
Posts: 1736
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posted November 24, 2006 01:37 AM
Do a search for all the threads about Speedo Healer.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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zxlnt
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted November 24, 2006 03:27 AM
I wonder how hard it would be to re-fit the speedo sensor to sense something driven off the front wheel. No more problems when re-gearing.
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BobC
Pro
Posts: 1736
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posted November 24, 2006 05:24 AM
 Edited By: BobC on 24 Nov 2006 05:25
.........Or even off the rear wheel, it would be possible but you'd still have a problem with calibration. The wheels rotate 0.415 times with every revolution of the gearbox output shaft on standard gearing, so you would still need something like a speedo healer to re-calibrate. It would be easier to just use the SH on it's own.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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Phytrax
Zone Head
Posts: 526
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posted November 24, 2006 05:57 AM
Edited By: Phytrax on 24 Nov 2006 05:58
quote:
.........Or even off the rear wheel, it would be possible but you'd still have a problem with calibration. The wheels rotate 0.415 times with every revolution of the gearbox output shaft on standard gearing, so you would still need something like a speedo healer to re-calibrate. It would be easier to just use the SH on it's own.
True, but I think what he means is you would not have to change the settings every time you change a sprocket. I don't know how helpful that would really be since most people only change sprockets once or twice.
You should also be aware that running the speedo off of the tire may cause problems with the gear indicator. On the other hand, it may get around the problems with the gear indicator. I think you would have to set the speedohealer to +240% for that to work, but that assumes the same amount of ticks per revolution as the sprocket, which may not be the case. I don't think it's even possible to set the speedohealer to +240%.
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