Is this true? -> "Rotaries are incapable of hydrolock"
#1
Is this true? -> "Rotaries are incapable of hydrolock"
Someone on these forums said that Rotaries are incapable of hydrolocking. I know our engines are 27.5 different kinds of weird. But I'm not sure if I believe that. Can someone confirm or deny whether or not a rotary engine can hydrolock for me?
#2
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I will not say it is impossible. I will say it is improbable. You would need a large volume of liquid to create lock. In piston engines even a small volume can create lock, but this is not so with a rotary. For instance, you can inject a significant amount of oil or atf into the chambers and continue to crank with no issues.
The reason for this is that the seals in the rotary are spring loaded, and if too much pressure is generated they will generally depress and allow some extra pressure to pass by into the next chamber. This is the same reason why rotaries do not make a whole lot of compression as compared to piston engines (90-120psi versus 150-220psi).
IF you have a custom intake and run through a good size water puddle and suck in a small volume of water, you'll just flood the engine and have to jump through hoops to get it restarted. IF you suck in a large volume of water, such as driving your car into a 3 foot flooded ditch with the accelerator to the floor, you may very well break something due to hydrolock.
The reason for this is that the seals in the rotary are spring loaded, and if too much pressure is generated they will generally depress and allow some extra pressure to pass by into the next chamber. This is the same reason why rotaries do not make a whole lot of compression as compared to piston engines (90-120psi versus 150-220psi).
IF you have a custom intake and run through a good size water puddle and suck in a small volume of water, you'll just flood the engine and have to jump through hoops to get it restarted. IF you suck in a large volume of water, such as driving your car into a 3 foot flooded ditch with the accelerator to the floor, you may very well break something due to hydrolock.
#6
And for what it's worth, posts #13-14 of the following inspired this thread:
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/custom-air-box-649226/
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/custom-air-box-649226/
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