Changing diff gears in VR commodore
im about to rebuild my LSD and change the gear ratios from 3:08 to 4:11 i know this greatly affects the speedometer so in a VR what do you need to change. i know the newer models need a chip to change the pulse from the gearbox to the ECU to calibrate the speed and in the older models its just simply changing a cog to calibrate. Does a VR come under an older model style calibration with a new cog or a newer model style calibration with a chip. or Neither? Have not been able to get a clear answer. any help would be greatly appreciated!
Donating Member w/ Boost
best way in a VR is with a speedo corrector. Most people buy the kit from Jaycar (which comes as a circuit board and components and needs to be soldered together).
Then it is just a matter of connecting it up, cutting into the wire from ECU to speedo, and calibrating it properly.
I believe there is a thread on here somewhere on fitting one.
Series one or two VR? Auto or Manny? V6 or V8?
Sorry, no answers, just more questions
Donating Member w/ Boost
won't make a differenceOriginally Posted by sticksicks
Series one or two VR? Auto or Manny? V6 or V8?
Sorry, no answers, just more questions
manny. alright cheers mate. how much do they go for ? i know a fair bit about circuits and electrical and wiring jobs so should i be able to give it a go meself ?
found this > Speedo Corrector MkII Kit "Kit Back Catalogue" - Jaycar Electronics
do i need to get it on the dyno to adjust or ?? how does it set that im using 20" wheels and diff gear ratio to 4:11
Donating Member w/ Boost
thats it.
drive along with a GPS and get someone to adjust the switches until the speeds match.
But a dyno would be way more accurate yeah ? i attract enough police attention as it is so i wana make sure its spot on
Where in canberra can i get it done besides dickson specialty instruments, their wait time is ages and pricey for something fairly simple
Donating Member w/ Boost
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