Karl Benz used a four stroke engine in the first car in 1885. How efficient was that engine compared to the modern engines?
- Anonymous8 months agoFavourite answer
His First one was a two stroke in 1879.
His 4 stroke Otto- cycle of '85 produced a whole .75 BHP. Less than a moped, and much heavier. Probably had big flywheel to keep running, so many losses in inertia there, too. My Daddy said a Model T would eventually get up to 45 MPH, with 20 Hp. Hadda put both ears down in hi gear.
Gasoline I think had an octane rating of 74, back then. I disassembled one of my old Harley Sprints, it had chromed combustion chamber but eroded from detonation. Preignition is the limits of power, even now.
- champerLv 78 months ago
Very inefficient. They weren't even thinking about efficiency then, just getting the thing to go at all was a triumph.
- Old Man DirtLv 78 months ago
Considering the "carburetor" was a new invention (I am not sure Benz even used one, I think his fuel system dripped gas into the engine) and the spark plug as we know it were several years off- not very!
The engine was low compression because of the grade of fuel that could be bought.
- JetDocLv 78 months ago
It was more fuel efficient than any automobile engine built BEFORE his.
- What do you think of the answers? You can sign in to give your opinion on the answer.
- Anonymous8 months ago
A large capacity motor was required to produce very modest horse power, so whereas a modern one litre engine produces circa 65 bhp and does 60mpg, a car with a seven litre engine would produce little more than 15bhp and only return 8mpg.
The modern one litre car would do 90, the veteran with a seven litre engine about 25!
Having said all that, the basic mechanical concept of both vehicles have not changed dramatically in all that time.
- CBLv 78 months ago
While I could look up this information pretty easily using Google - as could you - Efficiency would need to be qualified. Fuel efficiency, weight to horsepower efficiency?
I can tell you from visiting car museums the HP to weight ratio was horrendous right through about the early 40s. 600lb motors putting out a whopping 80hp.