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----- Original Message -----
Sent: Wednesday, January 18, 2006 4:55 PM
Subject: 100 vs 600 vs 400 vs 12.5 sparks/second : LS1 Coil
Failures
True, but remember we have two rotors each having two
spark plugs (both of which fire) and the trailing coils throw one spark away
(waste spark) but still is a coil firing.
The rotors are turning 2000 rpm (6000 rpm shaft / 3 ),
each rotor fires 3 times for each rotor revolution (three faces per
rotor). 2000/60 = 33.33 revs/sec for the rotors.
There are 2 rotor with 3 faces each or 6 firing faces per
revolution or 33.33*6 = 200 ignition evens per second. But each rotor
has 2 spark plugs both of which fire for each ignition event, so we
have 33.33 * 6 * 2 = 400 sparks second.
But, each sparkplug is serviced by a separate
ignition module so 400/2 = 200 sparks/second per ignition module - still
up there compared to a reciprocating engine.
Now at Tracy's 7500 rpm {:>), we have 7500/3 = 2500
rotor rpm or 2500/60 = 41.66 revs/second. From which we have
41.66*6*2 = 500 sparks per second. Now since there is a LS1 coil for each
plug we can divide load by 4 and 500/4 = 125 sparks second.
so If my logic and math are correct, Tracy is
actually driving the coils less that the Mazda stock coils - but still way above
Mark's truck at 12.5 sparks/second. In fact about 10 times more than
Mark's truck with engine turning 1500 rpm.
FWIW
Ed
----- Original Message -----
Sent: Wednesday, January 18, 2006 11:47
AM
Subject: [FlyRotary] Re: LS1 Coil
Failures
Each rotor fires
once/revolution of the eccentric shaft. Cruising along at 6000rpm,
that's 600 sparks/second/coil.
Hi Mark,
Is this the new math I always heard about :-)
6000 rpm / 60 seconds = 100 sparks per second
Cheers,
Rusty (everyone's a critic <g>)
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