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06-02-2011, 08:06 PM
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#1 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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Hey Hey,
Since converting my S2 AU SR to manual the speedo is way out at 100kph. When I'm doing 100kph on the dash i swear I'm doing nearly 120kph as I'm passing people pretty dam quick. How can i check to see how far out it is ? I have 2 other cars but i don't trust the speedo on them as one of them is 41 years old and the other is a Daewoo that been around the clock. Suggestions welcome. Des 
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AU XLS. |
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06-02-2011, 08:10 PM
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#2 | ||
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Tasmania
Posts: 3,579
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Do you have a sat nav?
or know someoen you can borrow one from they have speed and acurate
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2002 T3 Manual Naroma Blue TS-50 (049)Sunroof, Premium Sound, Black/Blue Leather Brembos |
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06-02-2011, 08:19 PM
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#3 | |||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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Quote:
Use one of those speedo correcting units from shiftkits.com or change the diff ratio. I need a new LSD diff.
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AU XLS. |
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08-02-2011, 06:05 PM
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#4 | |||
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Regular Member
Join Date: Mar 2008
Posts: 292
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Quote:
The speedo drive gear is internal to the gearbox, so you wouldn't really want to replace that, so it should just be a matter of identifying and sourcing the appropriate speedo driven gear. |
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08-02-2011, 02:40 PM
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#5 | |||
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Former BTIKD
 
Join Date: Mar 2005
Location: Sunny Downtown Wagga Wagga. NSW.
Posts: 53,197
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Quote:
Or you could even be really silly and take it into a speedo place and get it fixed.
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Dying at your job is natures way of saying that you're in the wrong line of work.
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08-02-2011, 05:32 PM
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#6 | |||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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Quote:
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AU XLS. |
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08-02-2011, 02:30 PM
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#7 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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What diff ratio do factory manuals have ?
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AU XLS. |
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08-02-2011, 05:13 PM
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#8 | ||
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app diesel mechanic
Join Date: Jul 2010
Location: far north coast,NSW
Posts: 322
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i would take it to a mechanic to have it checked out thoroughly. it's no good having a speedo that doesn't read correctly. you'll spen more time on the couch than in the car.
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daily driver: au series 1.5 forte sedan mods: clarion head unit, 15" alloys, ex police sump guard, futura grill,clear side flashers, AU s2 tailights,BA xr6 spoiler, kenwood 12" sub, kenwood 250W amp, kings sports lows, 2.5" lukey catback. mods to come: rims!! |
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08-02-2011, 06:09 PM
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#9 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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They are colour coded arnt they ?
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AU XLS. |
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08-02-2011, 09:45 PM
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#10 | ||
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FF.Com.Au Hardcore
Join Date: Aug 2008
Posts: 1,131
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use the speedo gear from the auto!
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GT 335 11.3@124.1mph 383rwkw/513rwhp Forced Performance Tuned |
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08-02-2011, 10:33 PM
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#11 | |||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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Quote:
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AU XLS. |
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08-02-2011, 11:03 PM
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#12 | ||
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FF.Com.Au Hardcore
Join Date: Aug 2008
Posts: 1,131
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Have you got a 3.08 or 3.23 diff? The speedo gear will be for 3.45's
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GT 335 11.3@124.1mph 383rwkw/513rwhp Forced Performance Tuned |
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09-02-2011, 03:10 PM
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#13 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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3.23. The one in the manual is for 3.45. Im look at a 3.45 lsd now from ftg.
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09-02-2011, 04:21 PM
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#14 | ||
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meh.
 
Join Date: Jul 2010
Location: Was Central Coast, Now Sydney NSW
Posts: 8,584
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just swap out the speedo senders.. they should be the same (apart from the ratio, which is obvious), but the manual and auto ones are practically the same, just for diff ratios..
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Previous - BF XR6T - 325rwkw, 6 Speed Auto, Process West, X-Force and Turbosmart gear |
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09-02-2011, 06:37 PM
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#15 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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Yeah im doing that for the time being but im still fitting the 3.45 lsd soonish.
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AU XLS. |
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09-02-2011, 07:01 PM
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#16 | ||
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www.sctflashtuning.com
Join Date: Jan 2005
Posts: 3,142
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take the car and run it on a dyno to check out you speed
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Australia's No1 Ford Enhancement Specialist 103 Northgate Drive Thomastown VIC 3074 Phone: 03 9464 5100 Fax: 03 9464 5166 |
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Speedo reading wrong.
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