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Mark,
I think Tracy indicated that
happens in the few milliseconds before the EC2 has properly determined the Dwell
time for the coils. If you are not using an EC2 but the automobile's ECU
that condition may not arise. For instance I could see them having a RAM
constant with a "Start Up" dwell value that might be used for starting or until
their ECU is up to steam calculating away.
You might find that your coils do use more than one
of the 10 amp fuses, but on the other hand Tracy indicated that the normal
working current drain is much less than 9 amps.
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
Sent: Monday, June 07, 2004 12:46
PM
Subject: [FlyRotary] Re: LS1 Coils - amp
draw?
Seems to me that we might have made a wrong assumption
somewhere. I have an LS1 in my '99 Chevy pickup with eight of these
coils. I just went out and checked the fuse panel. It has three
ignition fuses, each 10A. I don't have a shop manual to check the
schematic, but I've never had an ignition fuse blow, and they are only
10A. Logic would reason that only one of these circuits powers the
coils. So, 10A for 8 coils. What's wrong here? Should I really
design for 9A for each coil?
Mark S.
At
12:24 PM 6/7/2004 -0400, you wrote:
Hi
Al,
I'm interested in Tracy's thoughts on this too.
He said the high current is only during startup, but if my fuse was
accurate, then I drew > 15A at 5000 ft in cruise with 2 coils.
I think I'll be OK at 20A and 16G wire, but
....
Regards,
John
Slade
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