Re: ballast resistor by-pass??
[Re: scratchnfotraction]
#1046604
08/03/11 04:23 PM
08/03/11 04:23 PM
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Joined: Apr 2007
Posts: 2,826 NY usa
540challenger
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Quote:
I by-pass mine with the pertronix points conversion and their flame thrower coil,it has its own resister built in to it ![](/ubbthreads/images/graemlins/thumbs.gif)
the pertronix conversion needs the full 12 volts to work correctly.
been like that for 15+ yrs now ![](/ubbthreads/images/graemlins/thumbs.gif)
That would of been a good way to go however I have moper performance dist. does pertronix work with a mopar dist??????
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Re: ballast resistor by-pass??
[Re: scratchnfotraction]
#1046606
08/03/11 05:48 PM
08/03/11 05:48 PM
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Joined: Feb 2003
Posts: 10,234 Someplace you aren't
SomeCarGuy
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I bypassed mine w/ a MSD Blaster 2 and it ran great. Some say it will kill the ECU. I ran mine for hours on end, car running 195 temp constantly, on 90 degree + days with zero issues.
ECU was flush mounted on the firewall. If it was going to overheat and burn up like is claimed, that would have done it. Just a parts store brand ECU, nothing special.
IMO the system worked a little better. A 12 volt coil will like having 12 volts.
I want my fair share
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Re: ballast resistor by-pass??
[Re: SomeCarGuy]
#1046607
08/03/11 06:12 PM
08/03/11 06:12 PM
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Joined: Apr 2010
Posts: 4,154 bethlehem pa
mikemee1331
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Quote:
I bypassed mine w/ a MSD Blaster 2 and it ran great. Some say it will kill the ECU. I ran mine for hours on end, car running 195 temp constantly, on 90 degree + days with zero issues.
actually it's not 'some' who say you need it, it's Mother Mopar.
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Re: ballast resistor by-pass??
[Re: mikemee1331]
#1046609
08/04/11 01:26 AM
08/04/11 01:26 AM
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Joined: Feb 2003
Posts: 10,234 Someplace you aren't
SomeCarGuy
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I Live Here
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Quote:
Quote:
I bypassed mine w/ a MSD Blaster 2 and it ran great. Some say it will kill the ECU. I ran mine for hours on end, car running 195 temp constantly, on 90 degree + days with zero issues.
actually it's not 'some' who say you need it, it's Mother Mopar.
"they" also tell you to run their junky Purpleshaft cams, junky Stage 6 heads and so on.
If that were going to kill the box, I would have been on foot. Run yours w/ the ballast if you like.
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Re: ballast resistor by-pass??
[Re: SomeCarGuy]
#1046610
08/04/11 01:30 AM
08/04/11 01:30 AM
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Joined: Jan 2003
Posts: 5,448 So Cal
Sinitro
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Quote:
I bypassed mine w/ a MSD Blaster 2 and it ran great. Some say it will kill the ECU. I ran mine for hours on end, car running 195 temp constantly, on 90 degree + days with zero issues.
ECU was flush mounted on the firewall. If it was going to overheat and burn up like is claimed, that would have done it. Just a parts store brand ECU, nothing special.
IMO the system worked a little better. A 12 volt coil will like having 12 volts.
The Blaster II coil should use a 0.25 Ohm ballast resistor with the Mopar chrome box..
Just my $0.02... ![](/ubbthreads/images/graemlins/wink.gif)
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Re: ballast resistor by-pass??
[Re: SomeCarGuy]
#1046612
08/04/11 07:49 AM
08/04/11 07:49 AM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
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Years ago, I bought one of the first FBO ignition systems. Last year I removed the ballast and the FBO coil and replaced the coil with a Mallory unit that did not require a ballast. The system seems to be running fine but I emailed FBO about their new box and D said that my existing FBO ECU will burn up without a ballast. I have been running it for about six months or so but I do not put allot of miles on the car. I assume that I am going to see problems so I am thinking of buying the new FBO ECU and coil that does not require a ballast. When I removed the ballast and coil, I cutout the back of the ECU bracket to allow it to cool down just in the case that it creates more heat without the ballast.
I would like to see proof of the temps on an ECU with or without a ballast too.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: ballast resistor by-pass??
[Re: BigBlockMopar]
#1046615
08/05/11 04:06 PM
08/05/11 04:06 PM
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Joined: Apr 2007
Posts: 2,826 NY usa
540challenger
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Quote:
I'm running a stock (Heavy Duty 12v) coil in my daily '73 Dart without ballast resistor. If I reconnect the ballast resistor, the car starts to stumble at idle and die when put in Drive. I probably have the wrong resistor, but since I disconnected it everything still seems to work fine. The coil's temp climbs right along with the engine intake's temp.
Today I decided to install a MSD Blaster 2 coil (also without ballast). After starting the engine I let it run for a couple of minutes and used my infrared tempgauge and pointed it at the coil... It was already at 130-140F and climbing. I kept the engine idling for awhile to see where the temp would end up at and it went up to around 176F when I called it quits.
To me it's obvious the Blaster coil really needs a ballast resistor when used in a daily driver.
Has anyone ever measured the temp of a coil here?
I haven't but tomorrow I will, sounds like a fun and easy experiment.
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Re: ballast resistor by-pass??
[Re: mikemee1331]
#1046617
08/06/11 12:31 AM
08/06/11 12:31 AM
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Joined: Jan 2003
Posts: 5,448 So Cal
Sinitro
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Quote:
i believe the Blaster 2 coil is rated at 45,000 volts. your stock 'heavy duty' is considerably less which would explain the amount of heat generated - more windings.
Ding Ding.. We have a winner... The later coils such as the Blaster 2 are capable of handling higher input voltages & current for a longer time..
Just my $0.02.... ![](/ubbthreads/images/graemlins/wink.gif)
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