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Old 01-05-2008, 02:20 PM   #6 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Bay Area
Posts: 1,151

The Miata - '01 Mazda MX-5 Miata
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^^

The quick and gritty explanation....

Reduce vacuum and you reduce pumping losses.... There's plenty of products out there to reduce intake restriction - but they overlook one point... The throttle plate is the biggest freaking restriction in the whole line

Quote:
The temperature difference would be greater if you start with a colder air/fuel mixture. Wouldn't this mean that with cold intake air the engine would not have to work so hard to power the car?
Heat rejection temperature (hot side of a heat engine) isn't static... Start with fluid temp - add X heat - you'll end with Y fluid temp.... Increase initial fluid temp - add X heat - you'll get Y +Z fluid temp That's an oversimplification - but the key point is: max temperature doesn't remain constant

Perhaps it's nit picky - but if you're generating the same amount of power over the same amount of time.... The amount of work generated is exactly equal
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