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Does FI need different spark plugs?

2K views 4 replies 3 participants last post by  Alex323Ci 
#1 ·
I was wondering on a FI system does it need different temp range spark plugs? With the extra air/fuel I would think the cylinder would be hotter. I haven't seen it posted, so I guess not. But if so, is there a preferred plug for FI engines?
 
#4 · (Edited)
ive had good luck with NGK Iridium spark plugs....i used to use the cheapest copper cored ngks and bosch supers cause they were cheap, but they kept being blown out at boost pressures higher than 8psi (and they were gapped pretty close), the Iridiums tend to hold their spark under higher intake turbulences. they say for every 75-100hp over stock you take one step colder on the plugs.
 
#5 ·
Thanks for the info guys. I'll check with the maker of the kit and see if they suggest a certain plug and temp.
 
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