The GS-X-Tra had an article a couple years back about a '70-'72 speedometer face that went to 200. It turns out it was KPH instead of MPH, for export. Maybe to Europe, if not Canada o No:
I still think its %. Idle (500 rpm) is 10% of the redline (5000 rpm), 1000 rpm is 20%, etc, all the way up the scale....the redline is 100%... Sure wish someone body knew for sure. Can't be speedo/rpm, what if you left the car in first gear??? Cool though. later Tim
This might be really stupid but..... Could it be dual use somehow for 4 cylinders and V8's???? Doesn't seem likely, or practical, but I thought I'd throw it out there. :gt: My best guess is that someone played with Photoshop to pull one over on us. lol ou: :laugh: :eek2: :gt:
I took a real good look at that after importing the image to enlarge it. If that's a fake, I'm impressed. I would have to go with the earlier post and say it's a %-age thing on the tach. Probably for an overseas car that never made it overseas. I know they were available in England as I have a press release from 1970 announcing the car over there.
let me say this, Dave was given this yesterday (and i do mean given as in free) i have not seen it yet but i know my friend Kevin was with him when he got it and i know the guy they got it from. they say its legit and they are not the type of guys who would sit in front of a computer and doctor up a photo. i'll probably see it this weekend seeing that Daves car is stored less than 5 minutes from my home. i'll also ask him to bring it to the nats and show it around
I was only joking with the Photoshop comment. :gt: I'm sure it's not some kind of Canadian or oversees conversion (afterall....we do all use RPM's) I'm not quite sold on the 0-100% theory I'm see no use for a 4 Cyl tach with 8 Cyl markings on it Would dual points do anything different to a tach?? oNo:
I'm curious about the redline. My 71 doesn't have a tach, and the last time I had a GS with one it was 13 years ago. What is the redline on the typical GS tach? Is it "only" 5000 rpm?
If it turns out that this tach was a prototype (which it very well could be since it was in a "new style" 70 bodystyle), then the question I have is: What about the rest of the car? Perhaps it was a one-off too.o No: Todd
I think the more important question is Any IDEA if it still WORKS! o No: If it does, that would be soooo coooool!:bglasses: I'd put it in my dash if it worked, (that way I wouldn't have to struggle with cutting a hole in my hood)!:shock: :TU: :shock:
Well..I guess I'm not SURE, but how about pretty darn sure?? :gt: I'm thinking a revolution is a revolution, and a minute is a minute pretty much anywhere on the globe right? But I guess if anyone could figure out a way to make it more complicated, I'd leave it to the ones who use kilometers and newtons. lol :gt: :laugh: :beer
With current gas prices, it could be used to tell you how much it's costing you at any given speed. :grin:
Have seen one other tach like that. It was in my Vauxhall. The inner numbers are % of RPM with 100% being redline(5000 rpm). I remember wondering about it too when I bought and found a manual that described it. Steve Gray
