Strange happenings at the Dyno

[firefighter3931]

Good to hear you're running the NGK's 

While you're still in diagnosis/investigative mode  get your ohm meter out and test your ignition & coil wires ; you shouldn't see more than 250 ohms per foot resistance. Carbon will definately cause firing problems....it acts as an insulator.



Ron

[GunMetal]

Will do. I have the MSD 6AL box, Pro billet dizzy and just installed new 8.8 wires (I know, need Firecores right? ). I am running an older Blaster 2 coil.  Any idea on what I should expect for a proper resistance on that? 
In regard to the carbon fouling I did have the Eddy carb running too rich on cold start by using a delay switch, it came with the car and thought it was a good idea. Unfortunately the car didn't have enough time to get off the choke completely I guess.  The quest continues....Thanks Ron!

[firefighter3931]

Steve ;

The Blaster coil should have .7 ohm primary resistance and 4.5K ohm secondary resistance. I'm not saying your new 8.8 wires are bad but it's worth testing them just to eliminate as a potential problem. I've seen bad wires right out of the box. Generally speaking, MSD wires are very good....it's the plastic plug boots that crack and spark leak (arc) onto the headers that becomes a problem. 

Running your engine at night in the dark is a good way to see if you have any spark leak. I've seen a few "lightening shows" under the hood using this method. 


Ron

[resq302]

Running your engine at night in the dark is a good way to see if you have any spark leak. I've seen a few "lightening shows" under the hood using this method. 


Ron

Ron,

My 2005 Hemi Ram 1500 quad cab did that with under 6000 miles!

[GunMetal]

O.K. Got some numbers for the coil and plug wires:
   - coil, primary circuit (+ to -) 0.9 ohms
   - coil, secondary circuit (center contact to -) 5.53 k ohms
   - coil, wire (coil to dist.) 29 ohms 9" length.=3.222 ohm/in  or 38.664/ft
The plug wires all measure out to less than 4 ohms/in or 48 ohms/ft.
The ignition seems fine to me, although the coil secondary is spec'd at 4.7 k ohms 
  Any thoughts?

[mhinders]

The ignition seems fine to me, although the coil secondary is spec'd at 4.7 k ohms 
  Any thoughts?

The higher resistance could just mean they have increased the number of loops in the secondary winding to produce an even higher output voltage.
Martin

[firefighter3931]

O.K. Got some numbers for the coil and plug wires:
   - coil, primary circuit (+ to -) 0.9 ohms
   - coil, secondary circuit (center contact to -) 5.53 k ohms
   - coil, wire (coil to dist.) 29 ohms 9" length.=3.222 ohm/in  or 38.664/ft
The plug wires all measure out to less than 4 ohms/in or 48 ohms/ft.
The ignition seems fine to me, although the coil secondary is spec'd at 4.7 k ohms 
  Any thoughts?

Those numbers are fine ! 

Just keep an eye out for the plug boots (cracking/splitting) 



Ron

[GunMetal]

When I was running the other msd wires and the Hooker super comps, the #1 boot was right up against the header tube. I burned several boots, even after dimpling the pipe.  I have no such issues with the TTI's...love them TTI's!
 The "Honey Do" list now includes front bath remodel. Add'l info to follow when possible. Could be worse !