Two Speedometers...

KERAZY · Post by **KERAZY** » Sat Dec 02, 2006 2:56 am

gday.

um, yeah just speculating whether or not it COULD BE possible to have two speedometers:

one for normal tyres;
one for bigger tyres.

It'd be safer if i wanted to change from bigger tyres to normal tyres, ya know?

if not, who re-calibrates speedometers? how is it done? (not that I plan on doing it myself. Probably end up reading out 30km/h doin 80. thatd go down well)

BaronVonChickenPants · Post by **BaronVonChickenPants** » Sat Dec 02, 2006 9:55 am

If you were going to that much effort I think I'd get a speedo thats fed from an electronic pulse, attach a hall effect sensor to the end of your existing speedo cable and have 2 switchable configurations, not sure exactly how feasibale that is, i kinda just pulled it out of my...err..head

Jordan.

KERAZY · Post by **KERAZY** » Sat Dec 02, 2006 11:09 am

tis a point of discussion though, innit? Your idea could probably work.

93_Subi · Post by **93_Subi** » Sat Dec 02, 2006 12:00 pm

Grab a GPS and see how much your acttualy out before spending money..

Just my 1.95c

Matt

Fang · Post by **Fang** » Sat Dec 02, 2006 12:01 pm

There is (was?) a mob in Perth somehwere that made small gearboxes to adjust a speedo - they sat in line between the gearbox and the speedo head.

Bit too much hard work for me though - i just knock 10% off the speed im doing and that works for me.

KERAZY · Post by **KERAZY** » Sat Dec 02, 2006 2:43 pm

wait... if your speedo says 110km/h... if you knocked off ten percent itd be 99km/h. you do more with larger tyres. do you mean you add ten percent, and thats what you're doing? so 100km/h is 110km/h?

Fang · Post by **Fang** » Sat Dec 02, 2006 2:58 pm

Depends how you look at it.. but yeah...

ie

Actual 100kph = Speedo 90kph
Actual 80kph = Speedo 72kph

steptoe · Post by **steptoe** » Sat Dec 02, 2006 4:14 pm

better still, I got a roadangel EVO which sits on the dash with inch high , highly accurate gps speedo - bonus being all the road sense software...red/speed/van speed detection locations, school zones, railway x ings , towns, keep points on licence and money in ya pocket if you obey it !! and if you can import the radar detctor that plugs in the back, well....

KERAZY · Post by **KERAZY** » Sat Dec 02, 2006 5:11 pm

HOW MUCH and where?

PeeJay · Post by **PeeJay** » Sat Dec 02, 2006 5:37 pm

Just get a gps and put new marks over the old ones with a red texta or something, so when you are using big tires follow the red marks.

stinky · Post by **stinky** » Sat Dec 02, 2006 6:15 pm

Roadangel EVO

Never heard of them before, but look like a really cool idea. I'd probably buy one if they could be connected to a PDA with gps navigation software loaded in.

brumbyrunner · Post by **brumbyrunner** » Sat Dec 02, 2006 8:00 pm

Marks 4WD have speedo adjustment devices. To suit mechanical and electronic units. I have the electric one on a Landcruiser and it works great. It has a switch on it so you can run two different size tyres and both are adjustable. I have mine set up to suit 33" and 37" tyres.

steptoe · Post by **steptoe** » Mon Dec 04, 2006 12:02 pm

best deal for roadangel seems to be if nsw , nrma members 250 plus postage.

i found a nrma link at http://www.roadangel.com.au to see the offer but bought it at David Jones of all places to get their price match garrantee ( forgot to say i pissed off nrma ten years ago and say postage too) so got it for $250