sars said:
Said another way, keeping the engine at it's most efficient?
A serious thread- for once
- Thread starter Woots
- Start date
Said another way, keeping the engine at it's most efficient?
Brunettes.
Ppl arent really answering the question it seems...
Saying tht you cant rev the engine too high as it causes friction is bad on one hand, but ten on the other hand an engine doesnt work well when its being laboured in a lower gear.....
So its not really answering the question guys.... :lol:
Saying tht you cant rev the engine too high as it causes friction is bad on one hand, but ten on the other hand an engine doesnt work well when its being laboured in a lower gear.....
So its not really answering the question guys.... :lol:
the answer is...
you need a better question,
how steep, how long, entry speed, exit speed, which engine and gearbox?
I expect 42 will feature in the solution somewhere.
you need a better question,
how steep, how long, entry speed, exit speed, which engine and gearbox?
I expect 42 will feature in the solution somewhere.
There was a question? 
Oh yeah, throttle. Assuming you are maintaining speed, throttle is was it is. It ends up being whatever air the engine requires for the rpm. While it obviously controls engine speed, the question's constraints causes the throttle to be adjusted to what is needed to meet the constraints. So the real variable is only the gear selection. You should select a gear where the engine is running most efficiently while maintaining speed. Throttle is the wrong question!
A proper question would be: based on published S54 performance data, what is the most efficient gear to climb an infinitely long 10% grade in an OEM stock 2006 M Coupe with a 13 stone driver and 1/2 load of fuel, while maintaining a constant speed of 60 mph? At Standard Temperature & Pressure. Assume 15% drivetrain losses.
Oh yeah, throttle. Assuming you are maintaining speed, throttle is was it is. It ends up being whatever air the engine requires for the rpm. While it obviously controls engine speed, the question's constraints causes the throttle to be adjusted to what is needed to meet the constraints. So the real variable is only the gear selection. You should select a gear where the engine is running most efficiently while maintaining speed. Throttle is the wrong question!
A proper question would be: based on published S54 performance data, what is the most efficient gear to climb an infinitely long 10% grade in an OEM stock 2006 M Coupe with a 13 stone driver and 1/2 load of fuel, while maintaining a constant speed of 60 mph? At Standard Temperature & Pressure. Assume 15% drivetrain losses.