Speedo Reading Wrong Speed
I need help to work out why my speedo on my VB Commodore would be reading slower than im actually going. Ive put new wheels on but i found a thread on here saying to measure the total diameter of the stock wheels and the new wheels then divide the stockies by the new ones to find how much your out by. Ive done that and they're pretty much the same. Also Ive put a new instrument cluster (out of a V8 i think) in to replace the economy meter with a tacho. Could this be the problem??
Cheers vb_commie
Junk Yard Dog
if ur vb is a 6 and u put a v8 cluster in, i kno the tacho is probly different but as for the speedo.....did it start happining after you put the new wheels on? if yes then thats your prob. if u dont know, try putting your old ones back on then check if its out.
I dunno if it was out before i put the new wheels on but i think it was good when i bought it with stockies. But i wanna no if there is somthing i can buy to make the speedo read the actual speed.
Cheers vb_commie
Junk Yard Dog
there is. think u can get it from jaycar
edit i shouldnt post when i have just woken up
Last edited by The Darkness; 02-10-2008 at 06:10 PM. Reason: im a doofus
Banned
Im not sure if the kit works on the older commodores. Were the VB an electric sensor or cable drive speedo?
Ecotech Power
LOL @ Jaycar kit.... Sorry I really had to laugh, actually im still laughing
Mate changeing your wheels wil change your speed, even the widths can change it, but if the overall diameter wasnt much difference then this may not be your problem.
I cant remember if the VB had a 6cyl and a V8 speedo, but some also have a switch on the back to choose between each other.
They are cable driven and have a speedo gear inside the gearbox (on the end of the cable duh), you may need a different one to match your tyres, in which case you need to calculate which one you need and find the teeth/colour of it. If this is the case go onto oldholden.com and ask caus theres plenty of guru's there that can work that out if you give them, your tires sizes, diff ratio and gearbox.
Originally Posted by alien
Junk Yard Dog
haha yea i had just woken up lol must have still been asleep. the kits work on newer commies not older sorry bout that dude. what he said above lol
Ecotech Power
Dont worry im still laughing, pssibly goon influenced
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