Tagged Questions
2
votes
0answers
37 views
Brake Specific Fuel Consumption of 2-stroke vs 4-stroke
How much fuel do various types of engines burn per power output? I'm especially interested in naturally aspirated piston engines, and comparing two-stroke to four-stroke.
The wikipedia article gives ...
3
votes
3answers
152 views
why do engines have so much unused horsepower?
I've looked at the power rating of an engine used in a Humvee (5500 lbs) and was surprised it's only ~190 horsepower, which is exceeded by many 4 door sedans.
So an obvious question is why doesn't my ...
4
votes
2answers
229 views
Low power, bad gas mileage, smelly exhaust after engine work
My 92 Civic has had low power (need to use at least one gear lower than usual to get the same power) and has been getting bad gas mileage (15-25mpg vs 32-42 mpg usual) since I replaced the head ...
4
votes
2answers
94 views
When do engine type and mileage of a car affect pricing?
I'm currently designing a customer relationship management tool for auto shop owners and was wondering:
Does engine type or the odometer value of a car ever affect pricing for a customer?
What ...
4
votes
2answers
829 views
Why does my engine perform poorly and get bad gas mileage after using fuel injector cleaner?
At the advice of someone at a local auto parts shop, I poured a bottle of fuel injector cleaner into my gas tank. This happened around the same time that I had a brake job done and rotated my tires.
...
4
votes
4answers
4k views
Is idling bad for your engine?
If I sit in my car for 30-40 minutes with the AC and the car idling, does that "hurt" the engine, or does it simply waste gas and pollute the air? Would it be better if I turned off the car? A ...
5
votes
2answers
1k views
Engine Size and Fuel Consumption
I have this weird misconception that the engine size is related to the amount of fuel being burned in one cycle(4-stroke engine). I know this is stupid but how does engine size relate to the amount of ...
