Relay needed for msd box?
05-27-2010, 04:16 PM
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Relay needed for msd box? Hi I have a carb'd Ls1 that runs off an msd 6010 box. It runs great when the radiator fans are off, but when the fans are running at wot is hesitates and misfires. Would a 12v 30amp relay solve my problem? Thanks in advance for the help
05-27-2010, 05:59 PM
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Have you checked to see what the volts are at the box?
I've also got a 6010 and don't have any issues when I have both fans on
I've also got a 6010 and don't have any issues when I have both fans on
05-27-2010, 08:03 PM
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^^ I would check voltage at the box when the fans are on high. That should let you know if you have a huge voltage drop when the fans are on. Maybe you are overloading your alternator and causing a voltage drop through the whole electrical system.
05-28-2010, 01:16 AM
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no, a relay wouldnt help. what alternator are you running? i'd check to see if the alternator is charging the batt, and check voltarge drop from B+ to alternator+, should be no more than .5 volts, but even thats kinda high.
05-28-2010, 08:37 AM
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Isn't a relays job to supply consistent voltage to what it's powering? I'm running a stock alternator from a 98' TransAm/Camaro, but the swap is in a Miata. When the car is running, the battery sees around 14.4 volts so I know I have the alt wiring hooked up properly. However, I haven't checked how it looks with the fans running. Thanks for the help guys
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05-28-2010, 12:38 PM
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Isn't a relays job to supply consistent voltage to what it's powering? I'm running a stock alternator from a 98' TransAm/Camaro, but the swap is in a Miata. When the car is running, the battery sees around 14.4 volts so I know I have the alt wiring hooked up properly. However, I haven't checked how it looks with the fans running. Thanks for the help guys
