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Author
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Topic: Plug gap,and dist question
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Fastymz
Moderator Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 05-29-2003 01:16 PM
   
Should I make my plug gap bigger with the duraspark system and the blaster2 coil.Also I put the dist,in right well I'm 90% sure it's right. 
The vacuum advance sits more to the drivers then the old dist would at the same timing mark?
Do the duraspark dist line up different some how ? Thanks  One last thing always make sure you put the number spark plug back in the motor.Before you try to the start the motor.  ------------------
SCOOP
oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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ukracer
Journeyman Posts: 65
From: South Wales UK
Registered: Apr 2003
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posted 05-29-2003 01:55 PM
If you have upgraded to a better system it is always worth trying a bigger gap. May make a tick more power or may just give it better manners like easier starting, smoother running etc.
Re-the dist. No two distributors will be the same so anytime you change one, it will likely sit slightly different from the original and will need to be strobed for accuracy at full advance. HTH
Cheers, Martin.
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indyphil
Gearhead Posts: 773
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 05-29-2003 03:26 PM
I think if you miss the original position on the gear drive by one tooth that would make it want to be rotated but that should be a significant amount. Perhaps the gears are not always put on the shafts exactly the same. Anyway so long as the timing is right and there is nothing interfering or rubbing then it should be fine.------------------
'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust
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Fastymz
Moderator Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 05-29-2003 06:32 PM
Ok I can understand how all dist would be alittle different. How about the plug gap.I run a .35 gap now I was reading some info on the durasparkII system.It said to take full advantage of the system to run a wider gap.
And my MSD blaster coil said that too. Is this a case by case thing were as each motor likes something different? ------------------
SCOOP
oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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N266fords
Gearhead Posts: 557
From: Spokane ,WA USA
Registered: Apr 2003
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posted 05-29-2003 07:24 PM
ron for mostly street i run my gaps at .045 and i use low resistant plug wires..the wider the gap the more it powerful your system has to be to keep up with the load demand of your plugs. Happy motoring...Bruce
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 05-29-2003 09:03 PM
I use .035 no matter how powerfull the spark. You're sure to get a good flame kernal no matter under all conditions. SteveW
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KULTULZ
Gearhead Posts: 290
From: Rockville, MD
Registered: Oct 2002
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posted 05-30-2003 03:51 AM
The purpose of increased plug gap on an electronic ignition system is increased burn time and flame travel for emission purposes.
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Rustang
Gearhead Posts: 471
From: Clarion PA
Registered: Nov 2000
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posted 05-30-2003 12:52 PM
With my old duraspark system .040 to .042 seemed to work best ------------------
'68 mustang 351 clevor- 10.92@124
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'78 Pickup 351W-15.56@88
'79 Pickup 460 ET=??
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