Which Spark plugs ?
#1
Which Spark plugs ?
hey guys, i was wondering which spark plugs you tend to use. Im looking for more of a performance plug, because i have a 50,000 volt HEI which will be attached to accel super stock performance wires, and all i can find for plugs are AC Delco stock replacements. thanks
#4
I'll probably start an argument here, but I have run AC 44's in my race car as well as NGK'S ( don't remember the number ) with an HEI ignition and aftermarket coil and module and I have not seen any diff. in the performance.
One thing I have learned is to gap to the engine specs, NOT the ign. In other words DON'T gap a 9.5 to 1 motor at .055 just because you are running HEI.
Danny
One thing I have learned is to gap to the engine specs, NOT the ign. In other words DON'T gap a 9.5 to 1 motor at .055 just because you are running HEI.
Danny
#6
........ all i can find for plugs are AC Delco stock replacements.
Not from anyone who knows anything about the subject. If it does happen, I've got your back.
First time I put an Olds into the elevens, it had a factory ignition system, except for Niehoff points. Quality of Delco points went down, when they moved manufacturing offshore.
Norm
#7
I like to use AC Delco spark plugs. HEI ignitions are superior to points ignitions. If they weren't then why did auto manufacturers drop points ignitions by the mid to late 70s? If you compare a points and HEI ignition on an O-scope you can easily see the float and bounce points ignitions create.
#8
Im not worried about the "bling factor" at all actually, thank you norm for pointing that out. The reason im going with accel superstocks are because they are the best deal i have found for pre cut wires, because im getting tired of cutting them myself lol. And they definently wont hurt the situation at all, and with my past expierence i have found them to last longer than most brands. I was just seeing if there was an upgraded spark plug that i could go with. Every little bit helps.
#9
I like to use AC Delco spark plugs. HEI ignitions are superior to points ignitions. If they weren't then why did auto manufacturers drop points ignitions by the mid to late 70s? If you compare a points and HEI ignition on an O-scope you can easily see the float and bounce points ignitions create.
#10
If the module goes bad you could just put in a new one. If you don't use one from the same year, the check engine light will always be on though. I put a module from an 81 in my 85 and it worked out. The computer has no idea wtf it is though.
When the gear takes a dump or the weights go bad is when it's just easier to get another.
When the gear takes a dump or the weights go bad is when it's just easier to get another.
#11
No one said any different.
https://classicoldsmobile.com/forums...350-motor.html
Did your "scope" tell you, that both have the ability to fire the plugs under all normal conditions?
Norm
........ If they weren't then why did auto manufacturers drop points ignitions by the mid to late 70s? ........
........ If you compare a points and HEI ignition on an O-scope ........
Norm
#14
Thats true, im just saying how often do you have to check and or replace your points ? vs How often do you have to replace the module, if it does infact go out ?
#15
Originally Posted by The_Jeremiah
Thats true, im just saying how often do you have to check ........
........ or replace your points ? ........
........ How often do you have to replace the module ........
Norm
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bob p
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April 10th, 2015 01:55 PM