Capacitive Discharge Ignition, Any benifits to using the MSD system? |
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Capacitive Discharge Ignition, Any benifits to using the MSD system? |
Driver174 |
Jul 30 2018, 08:33 PM
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#1
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Member Group: Members Posts: 106 Joined: 2-February 17 From: Nevada Member No.: 20,806 Region Association: None |
914-4 2L race engine, 10.3:1 compression ratio and twin Weber's
Anyone have experience with the MSD systems on a Type IV? I'm thinking there may be benifits to having the higher spark voltages when compression ratio is relatively high. MSD claims plug gaps of .050 - .060" are possible, and that multiple sparks at lower RPM's improve throttle response. Thus, makes sense, but does anyone have real world experience that support these claims? |
Driver174 |
Jul 31 2018, 03:42 PM
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#2
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Member Group: Members Posts: 106 Joined: 2-February 17 From: Nevada Member No.: 20,806 Region Association: None |
On our 1.8 FProd car (12.3:1 CR) CDI made zero power difference. It did crap out, though, while leading a race at Barber. I rigged up a back up system I could switch back and forth between on the fly. The back up was a Bosch Blue Coil with no CDI. We tested both systems on the chassis dyno and there was absolutely zero difference in torque or power. We were using a Mallory distributor. Crank fire might be a different story. We ditched the CDI and the attendant complications. Thanks for sharing; this is exactly the information that I was needing. There is no sense in duplicating what has been proven in the past, and saves me time and money! As for crank fire set-up, I wish I could, but rules do not allow it. Jim |
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