TooLy

HI to all engine freaks,

I've got some general questions I would like to understand.

What is the difference between hall sensor to a pick-up coil ? and how the hall sensor works ?

I understand that in a twin 2 stroke engine both pistons go to the tdc at the same time, what about a quad, all 4 go togther ?

Can I use aluminium spinner for for this engine ?

Thanks

Antique

My Feedback: (4)

Hall sensor triggers the circuit when the magnet passes, same for pickup coil..
Hall takes 2 wires, plus, minus, and signal..
Pickup coil only uses 2, the circuit is different ..
Aluminum spinners work on any engine..
TKG knows about sensors and pickup coils, he'll be here..
Quad fours COULD be put together to fire at the same time, no one does...
How about a flat 6, how do they fire ? 120 apart with 3 separate ignitions ? Never saw one, 3W has one ....

airbr

My Feedback: (4)

You do have some multicylinder engines that fire there cylinders at the same time, some gulfcart and utility small deasel engines operate this way. The problem these types of engines have is they creat a lot of vibration and are generally very heavy and inefficient because of the counter weights used to counteract the vibration. Most efficient reliable multi cylinder engines fire at 180 to 60 apart depending on what you are trying to accomplish. This means that when on piston is at top dead center the other is at bottom then you can play with advancing the ignition timing to optimize power and efficency, this opposing action cancels a lot of vibration and they generally weigh less.. You can have one CDI box but it must have two leads going to each spark plug with one hall sensor and 2 seperat magnets set to past the hall sensor at desired firing order and timing degree. Hope this answers your ?.