Jockey Journal Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
675 Posts
Discussion Starter · #1 ·
Hey does anyone know about dual plugged heads and how they should be timed? Would it be the same advance/retard as a single plugged head? A buddy of mine has a dual plugged shovel with a Spyke dual fire ignition and two dyna coils. Is the timing normal or do I need to tweak in back or forwad more? Help
 

·
Registered
Joined
·
2,888 Posts
You need to retard the timing, about 5 degrees is what's usually recommended.
Since you have the mixture burning from both sides, it doesn't take as long for complete combustion. So you don't have to light it so far in advance of TDC. Helps wth detonation too.
 

·
Registered
Joined
·
675 Posts
Discussion Starter · #3 ·
Sweet! Thanks for the help!
Larry T said:
You need to retard the timing, about 5 degrees is what's usually recommended.
Since you have the mixture burning from both sides, it doesn't take as long for complete combustion. So you don't have to light it so far in advance of TDC. Helps wth detonation too.
 
1 - 3 of 3 Posts
Top