rising rpm
02-01-2007, 05:44 PM
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rising rpm My question is how is rpm controlled, i know that the throttle body has an IAC on it so its obviously getting air in that way to keep it at the desired idle. But what happens when you open the throttle, is it just the explosion have more force, therefore it accelerates the pistons.... Just curisoue what the technichal answer is to this question.
02-01-2007, 06:37 PM
#2
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Originally Posted by stilllt1
My question is how is rpm controlled, i know that the throttle body has an IAC on it so its obviously getting air in that way to keep it at the desired idle. But what happens when you open the throttle, is it just the explosion have more force, therefore it accelerates the pistons.... Just curisoue what the technichal answer is to this question.
When the load on the engine just equals the power produced it stops reving (or accelerating). That's cruise. If you give it more "gas" (air actually), it continues to accelerate the vehicle until the power required to maintain a speed equals the power available. That's the clue: power required = power available.