Re: Volts to plug

Posted by hassanfortney on January 11, 2006 at 21:21:26 from (12.215.74.246):

In Reply to: Re: Volts to plug posted by Janicholson on January 11, 2006 at 17:24:49:

ok ok guys the terms that we are looking for
dwell is in refrence to coil saturauition which means how long the coil is truned on or the points are closed this dwell.
so the simple awnswer to the question is longer the dwell the hotter the spark!!!!

"BUT the longer the dwell the shorter the fireing time.

okay guys here is the deal I have worked on cars all my life. started in automotive when the last sun machine used in school after i graduated they threw it out. but if any body finds one at a shop sale "GET IT" for this work they are perfect.
anyways sorry got off on a tangent
yes the longer the dwell the hotter the spark.
but shorter the burn.
how much voltage out of a coil?
most oil canister coils can only put out 15 kv or 15,000 volt max but for our purpose around 4500 to maby 6000.
okay youi might ask what is the proper dwell for a farmall with a prostolite distibutor?
I could not tell you.
what I can tell you is to set the point air gap at the proper thousandth and get a hand held dwell tach meter. and check it and if can get acsess to a sun machine play with the dwell or point gap to get the max output.
the sun machine or oscilloscope can measure both dwell and voltage.

next mags simple faster hotter they get.
mags are used in top fuel dragsters engine run in ecsess of 9000 rpms and they have big mags sometimes 2.

they are crude and not fun to play with I don't much care for them. I take them to guys that like them I do not.
moving on

the last thing to remember is the igntion systems on the farmalls are verey limited due to copper conductor wires and limted types of plugs
a typical copper spark plug wire can only handle roughly round 8500 9500 volts before it melts or seaks a new source to ground.

most vehicles now days have carbon spark plug wires the igntion coils have the capablity of producing 300 kv. thats not a type o.
but you are talking about electroinc igntion and no distributor igntion etc etc etc.
don't worry about that

soooo in my ramblings on you want hp?
from a H huh?
not going to get a lot from just the igntion. Just do this.
set the points gap accordingly.
put on good cooper wires custom make them short as possiable "dont zip tie them together" inductive voltage can cause a cross fire use a libral amont of die eletric grease on the spark plug contact to the wire and on the dis cap. set the dwell. maybe some one here can tell you the ideal dewll setting on this fourm and adjust the carb clean it out and re kit it if needed I know my super H needs it bad.

Replies:

• Re: Volts to plug John T 07:34:44 01/12/06 (0)

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