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Author Topic: Msd tfi dis problem 2BlueGeeTees ¯ Member # 4702 posted                              I can't get my engined timed with th msd distributor and the timing mark jumps around. I get a near perfect idle at 10 degrees advance when the spout is back in but a slight surge between 950 and 1200 rpm. If I advance to 14 it runs like poop. The injectors are fat at idle but anything off idle it runs like a raped ape. If I replace with stock distributor. The problem is less apparent. Still has small surge that I believe is from to much fuel at idle but less fuel will lean it out up top. Does this sound like the tfi is bad on the msd? The setup is a 347 afr 185, Vic 5.0, custom grind cam, 1.6 intake 1.7 exhaust RR's, 75mm tb and 75mm maf, 44# injectors, no smog equiptment what so ever Posts: 2316 | From: Vacaville | Registered: Jul 2004  |  : JohnB Tech Moderator Member # 969 posted                              Check your distributor drive gear. Sounds like you *may* have the wrong setup. -------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500 Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002  |  : 2BlueGeeTees ¯ Member # 4702 posted                              What am I looking for in the drive gear? Posts: 2316 | From: Vacaville | Registered: Jul 2004  |  : JohnB Tech Moderator Member # 969 posted                              Make sure the teeth aren't wearing out. The wrong gear will destroy itself...and your motor. -------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500 Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002  |  : 2BlueGeeTees ¯ Member # 4702 posted                              It is brand new with less than an hour of run time and teeth look new still Posts: 2316 | From: Vacaville | Registered: Jul 2004  |  : RAP66 ¯ Member # 3360 posted                              I have an MSD ProBillet dist and I didnt have any problems with it (yet) but when I had my car tuned the tuner suggested that the after market dizzies are "noisey" and can be a cause of many problems. -------------------- 91GT Kurgan Tuned:12lbs of boost 492.4 rwhp / 483.1 rwtq http://killcarb.org/ www.fordstrokers.com Posts: 893 | From: SF Bay Area | Registered: Oct 2003  |  :

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