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Best spark plugs for Nitrous?

6K views 6 replies 6 participants last post by  lownslo 
#1 ·
I recently installed a Nitrous Works kit on the car and have only used it a handful of times, but it seems like it is taking longer to start and it doesn't get the mileage it used to so I am thinking I'm in need of plugs. What are you guys using for plugs running the gas? Thanks.
 
#3 ·
i've ran autolite 103's, 104's and ngk tr6's. i gap mine .032 but that is as wide as i'd go. no tighter than .025
 
#4 ·
I agree with nomrlz, and ss I have used TR6's will good results
 
#5 ·
Thanks guys, I appreciate all the input.
 
#6 ·
I run NGK BR7EF (3346) or BEF8 (1049) gapped at .035. These are non projected plugs. I run a much cooler plug with my 175 shot due to 12.4 to 1 compression. The TR6's are only 1 heat range cooler than stock. Fine for a small shot. But for 150 or higher too hot of plug for my taste. Don't want and detination on nitrous. 7 or 8 series plugs and 110 octane fuel makes for great nitrous runs.
 
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