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Old 05-09-2009, 01:04 PM
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huck369 huck369 is offline
Inventor of the 5-speed swap
 
Join Date: May 2001
Location: Somerset, KY
Posts: 5,605
Significant Technical Input Registered SVX
Re: Impreza 5 speed swap problems

The speedo gear in the Impreza (depending on the year and model of Impreza) is set up for as small as 13" tires, you are now turning 16" tires which are probably 10% bigger than the 13's it was set up for.....so your speedo is off....there are aftermarket fixes for this, but they do cost....

My little Daily Driver is a Impreza L FWD 5-Speed, which came with 13" wheels, and I have a set of 16" rims on it, and my Speedo is off 10%.....so 50 on the speedo is 55, 80 on the speedo is 88, and so on...you can just adjust your driving to match it, or open up the tranny and install a different speedometer gear set, or get an aftermarket electronic fix for it...
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Huck
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92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
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