Designed in 1920 usually 159 cu inches about 290 horsepower and 9000 rpm, maintained in the same basic format later versions with turbos, in Indy cars putting out up to 1400 horsepower dominating racing for over 50 years in its various setups, possibly the greatest engine ever made.
There were numerous versions of the Offy throughout it's lifespan ranging from 110 to 270 cubic inches. It's design can be traced back to the 4 cylinder Miller engines of the 1920's and 30's.
A beast of an engine, strictly for racing. There was a list of startup\warmup procedures that had to be followed to the letter. After a prescribed warmup run the plugs had to be removed and cleaned or replaced. The engines ran on methanol.
@sk8__gr0mm5 I know I'm a year late but to answer your question you could easily convert it from methanol to petrol with a smaller jet and a retune but they just have such tight tolerance they're hard to get started reliably
To those that aren't baby boomers and didn't get to watch and listen to the Offy, there was and is nothing like them. They literally screamed. To any of you that don't know, the engine is so exotic, it doesn't have a head. Yes, that is true.
Interesting comment, the Offenhauser 4 cylinder racing engine was engineered and built by a mechanical genius. Todays Brickyard and F 1 Lê Man’s powerhouse engines are designed and assembled by teams of PHD engineers. Each team spends about $20,000,000. F1 racing teams usually have 2 or 3 of these cars, cost is not an object. At the end of each racing season the cars are destroyed. It is the next thing to rocket science.
IF you could find one of these super rare engines it would almost be a miracle. You would then need a garage full of genuine Offy parts and all the manuals, plus the skill of an expert machinist and a master mechanic with Offenhauser experience. Most of these ‘must have items are beyond the reach of even the wealthy, they just don’t exist.
Ok i have spoken to my friends @ brisbane Exhibition speedway group page , they tell me this, 7500 rpm was the top of there rev range but if you could get valve return springs to hold up 9000 was possible @ those rev next step was detonation, thanks for the laugh
Yes, massive horsepower and torque available on demand. The Ford model T and A four cylinder engines produced about 25 HP at modest RPM. The Offenhauser engine by comparison to all 4 cylinder engines built in the 20s was a quantum leap , much like todays moon shots.
![일상 속 기분 좋음 [Proto disco meme]](http://i.ytimg.com/vi/DwmEIaZ7XGQ/mqdefault.jpg)
You kidding me, that engine sounds ferocious, its ready to take on a V8 and just chomp on that V8 with no mercy.
The way that thing barks...just gorgeous!
The raucous sounds of American racing history!
Designed in 1920 usually 159 cu inches about 290 horsepower and 9000 rpm, maintained in the same basic format later versions with turbos, in Indy cars putting out up to 1400 horsepower dominating racing for over 50 years in its various setups, possibly the greatest engine ever made.
There were numerous versions of the Offy throughout it's lifespan ranging from 110 to 270 cubic inches. It's design can be traced back to the 4 cylinder Miller engines of the 1920's and 30's.
Sounds lovely!!! My Dad & Grandpa used to work on these! 🏁
When I was a kid Johnny Paul’s shop in crown point Indiana There were 3 of those on wood mounts I knew they were special Little did I know
I Love the sound of the Offy and even better without the mufflers. Crank it Up!!
Not many places where they had to run with mufflers.
A beast of an engine, strictly for racing. There was a list of startup\warmup procedures that had to be followed to the letter. After a prescribed warmup run the plugs had to be removed and cleaned or replaced. The engines ran on methanol.
could anyone convert these to be at least somewhat streetable?
@sk8__gr0mm5 I know I'm a year late but to answer your question you could easily convert it from methanol to petrol with a smaller jet and a retune but they just have such tight tolerance they're hard to get started reliably
That is art that makes nice engine sounds!
SWEET sound of a offy
To those that aren't baby boomers and didn't get to watch and listen to the Offy, there was and is nothing like them. They literally screamed. To any of you that don't know, the engine is so exotic, it doesn't have a head. Yes, that is true.
doesn't have a head ????
@@Animal.CUT... the "head" is cast into the block so it's all one solid piece
Unbelievable. I love this engine
that has a really wild camshaft!
How many races were won with Offys? From small dirt tracks to Indy, they were everywhere!
need to dial in the cams, sounds like the exhaust valves are open to long.
Interesting comment, the Offenhauser 4 cylinder racing engine was engineered and built by a mechanical genius. Todays Brickyard and F 1 Lê Man’s powerhouse engines are designed and assembled by teams of PHD engineers. Each team spends about $20,000,000. F1 racing teams usually have 2 or 3 of these cars, cost is not an object. At the end of each racing season the cars are destroyed. It is the next thing to rocket science.
Sound vicious for a 4 cyl.
Man that thing sounded good!
can you buy these still? i have a single cab i want to swap this motor into
Is that thing hiding an extra four cylinders somewhere? It sounds more like a flat-crank V-8 than a four-banger! Nasty!
They sound so good!!!!!
I bet your neighbors love you 😂
That was very impressive
Hoho, that's a mighty sound
Expensive, touchy, fragile, powerful
Sounds like your describing a Ford cosworth v8 not an offy
That's a nice engine! What kind of power does these things make? I'm curious.
What is the grind on the cam, is it a Winfield #4? Is that Hilborn injection and pump as well?
Could you run one of these on the street if you used lighter cams and lower compression pistons?
How easy or difficult is it to purchase an Offy engine?
IF you could find one of these super rare engines it would almost be a miracle. You would then need a garage full of genuine Offy parts and all the manuals, plus the skill of an expert machinist and a master mechanic with Offenhauser experience. Most of these ‘must have items are beyond the reach of even the wealthy, they just don’t exist.
If thats the 120, I'd hate to hear what the 270 sounds like.
I want for my Honda civic
Imagine this thing with desmo...
nothing sounds like an offey. would love to have gasoline street/strip one.
I have a few magnetos if you need them
Muffler? On an Offy? LMAO!
Me too 🤣🤣🤣🤣
noisy little critter aint i
what's the red line on these? man i'd love to put that in my tracker... rice burner stomper :)
fuel line and filter to the fuel rail
i meant the rev redline, sorry
Ok i have spoken to my friends @ brisbane Exhibition speedway group page , they tell me this, 7500 rpm was the top of there rev range but if you could get valve return springs to hold up 9000 was possible @ those rev next step was detonation, thanks for the laugh
Wow that for a miner.hang on .
ur webpage is unavailable
are these engines fairly expensive?
Yes very
Horsepower?
Yes, massive horsepower and torque available on demand. The Ford model T and A four cylinder engines produced about 25 HP at modest RPM. The Offenhauser engine by comparison to all 4 cylinder engines built in the 20s was a quantum leap , much like todays moon shots.
WOW
It's not a motor!
That's nasty!!!!!
my ears are bleeding.....
Au
SWEET sound of a offy