Poor man's direct fire....
11-17-01, 09:38 PM
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Poor man's direct fire....
Recently there has been a lot of posts on using ignitors in parallel for a direct fire set-up. Then I read about the single ignitor set-up with two coils in series. Jeff20B wrote about it I think. My question is if the coils connect in series the resistance is doubled which would drop the voltage across the coils by half. So how does it work right?
11-18-01, 02:04 AM
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Re: Poor man's direct fire....
Originally posted by rxseven
Recently there has been a lot of posts on using ignitors in parallel for a direct fire set-up. Then I read about the single ignitor set-up with two coils in series. Jeff20B wrote about it I think. My question is if the coils connect in series the resistance is doubled which would drop the voltage across the coils by half. So how does it work right?
Recently there has been a lot of posts on using ignitors in parallel for a direct fire set-up. Then I read about the single ignitor set-up with two coils in series. Jeff20B wrote about it I think. My question is if the coils connect in series the resistance is doubled which would drop the voltage across the coils by half. So how does it work right?
11-18-01, 09:41 AM
#4
Old [Sch|F]ool
Hmm
All I know is, I absolutely adore my MYAPMDFIS (Makes You A Poor Man Direct Fire Ignition System 
). You know, the MSD setup. I stopped having misfire-over-7k problems when I switched from BR8ET's to cut-down Autolite 3923's. I'm still experimenting with gapping, I did my 15.1 run on .045" gap, now I've got a .030 gap but there's no noticeable difference to the butt dyno.
). You know, the MSD setup. I stopped having misfire-over-7k problems when I switched from BR8ET's to cut-down Autolite 3923's. I'm still experimenting with gapping, I did my 15.1 run on .045" gap, now I've got a .030 gap but there's no noticeable difference to the butt dyno.
11-18-01, 02:54 PM
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Originally posted by Jeff20B
REVHED, did you mean the series version?
What kind of recurved dizzy are you using? Does it advance to 25º like a GSL-SE dizzy?
REVHED, did you mean the series version?
What kind of recurved dizzy are you using? Does it advance to 25º like a GSL-SE dizzy?
11-18-01, 03:51 PM
#6
Rob Golden said that on an NA engine, wasted sparks help quite a bit if the AF mixture is not perfect. But if it is perfect, then maybe you don't need it. Unless you corner hard all the time.
So your dizzy only advances by 10* total? That is pretty cool! Maybe I'll keep using my 20* advancing dizzy and not even worry about my 25* dizzy.
So your dizzy only advances by 10* total? That is pretty cool! Maybe I'll keep using my 20* advancing dizzy and not even worry about my 25* dizzy.
11-18-01, 04:10 PM
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Who's Rob Golden? What he said makes sense though. I spent quite a bit of time on the dyno getting my carb tuned right so my A/F mixtures are spot on. That's probably why I didn't see any difference. Anyway, I still think DLIDFIS is a really good idea. I just didn't want it cluttering my engine bay.
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11-18-01, 04:48 PM
#8
Originally posted by REVHED
Who's Rob Golden?
Who's Rob Golden?
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