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03-03-2010, 07:51 PM
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#1 |
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Registered User
Join Date: Aug 2007
Location: Puyallup, Washington
Posts: 63
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Distributor wiring
I recently gutted my old points distributor and installed an electronic conversion. The coil I have requires a balast resistor. I got key on power for the module from the yellow wire that was going to the + side of the coil and I installed a balast resistor to the coil. Everything seems to work properly, but... from a cold start (first start of the day)... it takes three starts to stay running. I have since discovered that there is a resistance wire in the circuit that the yellow wire feeds from. Would I get better results from running a separate key on 12v line to the distributor module and eliminating the redundant balast?
Tim
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1970 C10 LWB with SB 307 & TH350 |
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03-03-2010, 07:56 PM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Distributor wiring
I would just elimminate the ballast resistor and use the existing resistor wire that is already in the harness.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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03-03-2010, 08:24 PM
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#3 |
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Registered User
Join Date: Aug 2007
Location: Puyallup, Washington
Posts: 63
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Re: Distributor wiring
Do you think there's any harm in powering the distributor from the resistance wire?
Tim
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1970 C10 LWB with SB 307 & TH350 |
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03-03-2010, 08:37 PM
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#4 | ||
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Registered User
Join Date: Dec 2008
Location: Yay Area CA
Posts: 2,329
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Re: Distributor wiring
Quote:
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1965 GMC shortwide big window 1969 Chevy C20 long (for now) 2005 Silverado 2500HD Crew Cab Quote:
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03-03-2010, 08:58 PM
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#5 |
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Registered User
Join Date: Jan 2010
Location: Granite Falls, NC
Posts: 104
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Re: Distributor wiring
According to Pertronix tech guys, you can power the module off of either straight 12V before the resistor or after the resistor (or resistor wire), but if you accidentally leave the switch on, the resistor can sometimes save the module from meltdown if you have it wired after the resistor. This happend to me on my 68 Camaro the night before I got married. I had the module wired in without the resistor wire and left the switch on the night before. The day of my wedding, my dad and I were in tuxes working on the distributor. Fun stuff.
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03-03-2010, 10:07 PM
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#6 |
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Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: Distributor wiring
I installed the Pertronix kit and I ended up buying their Flame Thrower coil ($36). You can wire their coil straight to a 12V keyed source, no resistor, no BS. Then you can open up your plug gap to that of an HEI for a better burn.
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Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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03-03-2010, 11:44 PM
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#7 |
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Registered User
Join Date: Jan 2010
Location: Granite Falls, NC
Posts: 104
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Re: Distributor wiring
I've had very bad luck with Flame thrower coils. They usually start to leak and then break down when hot.
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03-03-2010, 11:45 PM
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#8 | |
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Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: Distributor wiring
Quote:
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Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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