Thread: 20B Rotary
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Old 03-08-2016, 09:35 PM   #66
Hyper4mance2k
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Quote:
Originally Posted by toast View Post
Settle down Beavis.

The statement that was made was that a 20b has the effective displacement of a 4.0 liter piston engine. Using your own words you agree with this. If you are going to compare any type of 4 cycle motor you look at the volume of air pumped through for a given amount of time. That makes the statement perfectly correct.

If you ever raced a rotary in, hell, any class of motorsports they always double the displacement of the rotary for classification.

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No. Displacement doesn't have anything to do with "a given amount of time." If you drink a two liter bottle of Pepsi, then fill it up with again and drink another two liters, is the bottle now a 4 liter bottle? No. It's still a 2 liter bottle of Pepsi. This is 8th grade science class, man. There is no such thing as "effective" displacement. It's a made up term.

I have raced rotaries for over 15 years. Almost no one doubles displacement anymore. That was done in the 80's because Rotaries were just faster than everything. Not because of displacement...

Sorry if I come off like an a$$h0l3, but for almost 20 years I've been repeating myself. It really is basic science. Time dies not change displacement, and effective displacement is simply a made up term used by people who don't understand the engine. Try googling effective displacement. Nothing comes up...
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Last edited by Hyper4mance2k; 03-08-2016 at 09:54 PM.
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