Compression braking?
07-16-2003, 10:57 PM
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Compression braking?
Ok, a question for you gearheads... Can you do compression braking in a rotary just like a piston engine? One of the new buyers said he dropped it into 4th looking for 6th and the car didn't slow a bit; it just revved the engine. Yes, I know a Wankel has a compression cycle just like a piston engine yet it doesn't fight against the upstroke like reciprocating engines do. It just keeps on rotating in the same direction as the power stroke. Can anyone analyze this for us?
07-17-2003, 02:23 AM
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Re: Compression braking?
Originally posted by 8_wannabe
Ok, a question for you gearheads... Can you do compression braking in a rotary just like a piston engine? One of the new buyers said he dropped it into 4th looking for 6th and the car didn't slow a bit; it just revved the engine. Yes, I know a Wankel has a compression cycle just like a piston engine yet it doesn't fight against the upstroke like reciprocating engines do. It just keeps on rotating in the same direction as the power stroke. Can anyone analyze this for us?
Ok, a question for you gearheads... Can you do compression braking in a rotary just like a piston engine? One of the new buyers said he dropped it into 4th looking for 6th and the car didn't slow a bit; it just revved the engine. Yes, I know a Wankel has a compression cycle just like a piston engine yet it doesn't fight against the upstroke like reciprocating engines do. It just keeps on rotating in the same direction as the power stroke. Can anyone analyze this for us?
07-17-2003, 07:03 AM
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Originally posted by wakeech
sure it'll work... i wouldn't recommend doing it, but yeah, you can engine brake.
sure it'll work... i wouldn't recommend doing it, but yeah, you can engine brake.
As long as you take the time to reasonably match the revs, it does not seem evil to me. Does this place more stress on rotary engines than piston ones?
07-17-2003, 08:34 AM
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...this is why i advocate searching and reanimating old, dead threads...
* MUAH HA HA HA HA!!! LIIIIIVE!!!! *
Using Engine Break <- i know it's spelt wrong, but i wasn't the one who started the thread...
* MUAH HA HA HA HA!!! LIIIIIVE!!!! *
Using Engine Break <- i know it's spelt wrong, but i wasn't the one who started the thread...
07-17-2003, 10:03 AM
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Thanks. I started this thread and I did search for engine brake/braking. I am not too interested in engine breaking. If I wanted that, I'd be on a Ford forum. 
07-17-2003, 11:08 AM
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Well, regardless of the debate of whether one should or not, I can tell you from experience that the rotary engines won't engine brake like a piston engine.
---jps
---jps
07-17-2003, 02:10 PM
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Yeah, my SA doesn't engine brake worth a damn, but then again, that's why God invented brakes, right? To me, it's better to be hard on the consumable parts, like brake pads, than the non consumables, like the motor and transmission. If you're intent on downshifting while slowing down, match revs. Your engine will thank you. :D
To me, it's better to be hard on the consumable parts, like brake pads, than the non consumables, like the motor and transmission. If you're intent on downshifting while slowing down, match revs. Your engine will thank you. :D
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