Suppose you could design and build your ideal engine. And what type of vehicle would this engine go with?
What design choices and technologies would you INCLUDE and why? What design choices and technologies would you intentionally EXCLUDE because they aren’t that great and why not?
Some design choices and technologies could include:
- Cylinder Configuration: Inline, V, W, Boxer, Radial, (Rotary), etc…
- Number of Cylinders: 2,3,4,5,6,7,8,10,12, etc…
- Bore Ratio?
- Timing: Gear, Belt, Chain, etc…?
- Valves: 2,3,4, etc…? OHC, OHV, etc…?
- Induction: Naturally Aspirated, Turbo, Super, etc…?
- Fuel Delivery: Carburetor, Port Injection, GDI, Dual Injection, etc…?
- EGR?
- PCV?
- Throttle Body Control?
- Gasoline Type?
- Oil Type?
- Sump: Wet, Dry, etc…?
- Material: Iron, Aluminum, etc…?
- And any other design choice or technology that you may include or exclude?
That would be one hell of an engine!
When is this essay assignment due? How much of my final mark will it be worth?
It’s due the day before tomorrow, and the day after yesterday.
It’s weighted pretty heavily, but we take everything this semester into account.
My ideal engine would be a naturally aspirated V8, pushrod, with port injection, wet sump with a dip stick, and making at least 300 hp. There would be NO variable valve timing, NO cylinder deactivation, and NO direct injection. The closest to that is the GM LS1 through LS3 engines.
Dipstick! Now that is important. I really hate the modern cars without one.
BTW, I have to appreciate the LS engines thanks to this forum and digging into what makes an LS engine an LS engine.
If I may ask, do any other car makers have an engine in their history that rivals the LS engine?
I would go with an I6 cylinder with a dipstick, OHV, 2 valves pet cylinder making 280 hp. Aluminum on cast iron engine.
Cool! I’m partial to an inline 6 myself!
Is this Pass/Fail or do we get a grade?
It’s pass/pass, but if you would like a grade, I’m sure we can figure it out.
Nope. My favorite is the LQ9.
Nice! Variation of the LS. I saw a cut away of an engine from this family. Totally fascinated by how those pushrods work. All I’ve ever seen were cams and camshafts prior to that.
- Cylinder Configuration: Inline
- Number of Cylinders: 6
- Bore Ratio: Almost Square
- Timing: FreeValve
- Valves: 4, FreeValve
- Induction: Naturally Aspirated
- Fuel Delivery: Dual
- Throttle Body Control: FreeValve
- Gasoline Type: The cheapest gas
- Oil Type: The cheapest but best
- Sump: Dry