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
the pertronix conversion needs the full 12 volts to work correctly.
been like that for 15+ yrs now
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: 10,220 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: 10,220 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: 5,445 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...
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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: 5,445 So Cal
Sinitro
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So Cal
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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....
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