Yeah that was the answer I was looking for. And yes you did catch the
old drag racer instincts coming out in me. I like the way you pointed
the finger on the 3 step box without pointing at someone just the
general direction of Alabama. LOL. I was thinking of the
distributorless ignition systems we are seeing more of and this
eliminating the phase error. With the computer being able to tune each
cylinders individual timing characteristics, lots of time, and dollars
one could possibly extract every ounce of horsepower. But hey that's
where the technology is headed. I feel like it's running off and
leaving me!
BillB
----- Original Message -----
From: "dahlgren" <dahlgren@uconect.net>
To: "Bill Bennett" <benettw@earthlink.net>
Cc: <land-speed@autox.team.net>
Sent: Monday, August 21, 2000 7:27 AM
Subject: Re: Crank Triggered Ignition?
> You should set the timing for whatever makes the car run best
without
> the nitrous setup and have the phasing off ever so slightly so that
the
> rotor phasing is correct with the retard in effect for the nitrous.
You
> use a retart box that goes between the MSD and the ignition pick up
if
> you msd does not have a place for a retard CHIP..Oh by the way if
you
> have the 3 step retard box tape over he chips in the unused stages
so
> you change only the one you are using. And TEST the BOX the easy way
in
> the pits right before you run with a switch wired in(sort of ok) or
by
> activaing the nitrous system with the coils removed from the
> solenoids(best). What is the deal with the high gear retard??? That
was
> a very old drag race thing when they ran a few extra degrees in the
> lowwer gears to get a better launch, those days are over. All the
retard
> will do is either put the timing where it really belongs if you have
it
> over advanced to start with or just make a bunch of exhaust heat if
it
> was right in the first place. ou could also buy a simple computer to
run
> the timing too, LOL and have any curve you want.
> Dahlgren
> PS. Yes I sell the computers but I suspect most on this list really
> don't need one unless they are willing to do a lot of dyno work to
find
> the optinum timing through the rpm range........
>
> Bill Bennett wrote:
> >
> > Having seen Keith's crank triggered ignition setup, I have a
pondered
> > something about it. I have never used one so I don't know the
whole
> > ins and outs of it, just the basics. With the crank now initiating
the
> > spark, the distributor becomes just that a spark distributor with
> > either the advanced locked out or removed. I would imagine that
you
> > now have to index the cap to the rotor to assure that when the
> > ignition coil fires the rotor is properly aligned with the cap
post.
> > Mechanical timing is now adjusted by moving the magnetic pickup in
> > relationship to the crank wheel. Having said that, here is what I
am
> > pondering. When running nitrous you would want about 8 degrees
retard
> > for a 200 Hp system add on top of that about 4 to 8 degrees top
end
> > retard. So now we are talking about throwing a total of 16 degrees
of
> > retard into a system that has no mechanical way of retarding so it
> > must be done electronically. That 16 degrees of retard is
crankshaft
> > degrees so it would be 8 degrees retarded in the distributor. Now
the
> > question! Wouldn't this 8 degrees retard affect the alignment of
the
> > cap and rotor, and how much would be needed to throw the alignment
off
> > enough to weaken the spark? I know that was 2 questions.
> >
> > Maybe this whole message is retarded!!!
> > Bill Bennett
> > " Life was better when you could adjust the mixture and timing
from
> > the steering wheel"
> > "Southern Salt Terror"
> > http://home.earthlink.net/~benettw/
>
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