1940 buick show car was a daily driver!!!!

[freebeard]

Hidden headlamps first appeared on the Cord 810 in 1936. Each unit had a crank on its side of the dashboard, which was turned by hand when the headlamps were needed.

Powered hidden headlamps were pioneered in GM's Buick Y-Job concept car of 1938 and were used briefly on Chrysler Corporation's 1942 production DeSoto.

https://en.wikipedia.org/wiki/Hidden_headlamp

[kach22i]

Originally Posted by basjoos

I thought the 1935 Cord 810 was the first car with hidden headlights and no running boards (also front wheel drive).

Where did you read otherwise?

The article I already posted claims it was the Cord, for a "production" car that is.

Pop-Up Headlights – Seventy Years of Hidden History
https://www.heacockclassic.com/artic...idden-history/

In 1933, Gordon Buehrig’s proposed “baby Duesenberg” sedan featured headlights that retracted into the fenders; he patented the idea in 1934 and the hidden headlight became another idea for the stylists to use. Making them work, however, would be a problem left for the engineers to consider. The first use of hidden headlights for a production automobile was on the Gordon Buehrig-designed 1936 Cord 810. Buehrig wanted to make the lights retract via electric motors, but cost considerations prohibited it. Instead, the lights were cranked by hand with separate handles under the dash. The Coffin nosed Cord 810 and 812 models rewrote the book on automotive styling and set designers on a new course. The hidden headlight was about to emerge as a styling element that has yet to lose its allure after nearly 70 years.

[mwilliamshs]

Originally Posted by mcrews

...The 13 inch tires would have given better off the line acceleration.....given the typical gearing in the fortys.

I read things here often of this ilk but I'll never understand how the diameter of a wheel influences gearing, except to the possible extent of tire availability.

It's the tire that changes effective gearing, not the wheel on which it's mounted. A 27" tire on a 16" wheel and a 27" tire on a 13" wheel both turn the same number of times in a mile, period.

[mcrews]

Originally Posted by mwilliamshs

I read things here often of this ilk but I'll never understand how the diameter of a wheel influences gearing, except to the possible extent of tire availability.

It's the tire that changes effective gearing, not the wheel on which its mounted. A 27" tire on a 16" wheel and a 27" tire on a 13" wheel both turn the same number of times in a mile, period.

please reread what you wrote. you contradict yourself in one sentence.

[mwilliamshs]

Originally Posted by mwilliamshs

I read things here often of this ilk but I'll never understand how the diameter of a wheel influences gearing, except to the possible extent of tire availability.

It's the tire that changes effective gearing, not the wheel on which it's mounted. A 27" tire on a 16" wheel and a 27" tire on a 13" wheel both turn the same number of times in a mile, period.

Originally Posted by mcrews

please reread what you wrote. you contradict yourself in one sentence.

I don't think I do. For clarity, let me paraphrase myself.

The size of a wheel doesn't affect anything. If two tires of the same height are used, it won't matter what size wheel they're on. They'll turn the same number of times in a mile no matter what. Now, if tires of a particular height are not available to fit a particular wheel size, that would matter, but otherwise, it doesn't.

[Frank Lee]

Technically it's true that the tire size is "the decider" "where the rubber meets the road".

It's generally the case that the smaller the wheel, the smaller the tire O.D.

YMMV

[mcrews]

Originally Posted by mwilliamshs

I read things here often of this ilk but I'll never understand how the diameter of a wheel influences gearing, except to the possible extent of tire availability.

It's the tire that changes effective gearing, not the wheel on which it's mounted. A 27" tire on a 16" wheel and a 27" tire on a 13" wheel both turn the same number of times in a mile, period.

ok, let me help you.....

you said...."it's the TIRE that changes effective gearing" REPEAT "THE TIRE"

THen you say two different different tires effect nothing.

THus a contradiction.....

Maybe read the several hundred posts I have on tire size/ diameter effecting mpg.

oh, and I stand by the FACT that a reduction in a 16 inch tire in 1940 will FACTUALLY effect the ratio when using a 13 inch tire. PERIOD.

[freebeard]

We could talk about the difference between precision and accuracy (in language).

Sometimes I don't speak right
But yet I know what I'm talking about

War — Why Can't We Be Friends

If I were making a Fad T-Bucket today it would have red 19" Model A wire wheels, with BMW i3 tires on the front and Rolls Royce 30" (radials from Coker) in the back for Rockabilly Big 'n Littles.

[mwilliamshs]

Originally Posted by mcrews

ok, let me help you.....

you said...."it's the TIRE that changes effective gearing" REPEAT "THE TIRE"

THen you say two different different tires effect nothing.

THus a contradiction.....

Maybe read the several hundred posts I have on tire size/ diameter effecting mpg.

oh, and I stand by the FACT that a reduction in a 16 inch tire in 1940 will FACTUALLY effect the ratio when using a 13 inch tire. PERIOD.

what I said was the tire diameter (result of height) has no impact on gearing. tires of equal height roll the same number of times in a mile. You said the wheel size would impact gearing, which it won't. I'm not saying two different tires of equal height can't return different fuel mileages, just that it won't be due to gearing. Could be tread design, could be weight, rolling resistance, etc etc etc but it would NOT be a result of gearing.

Example: I swapped from 15" wheels to 16" on my van. Went from 235/75R15 tires to 225/75R16. Gearing did not change, either effective or ring and pinion. Go figure.