Nissan 370Z Forum - View Single Post

AstatenateZ · 05-01-2015, 10:54 AM

Where I'm at we have 93 octane. I am going to get tuned next week and wanted to try running 1 step warmer Denso 3442 spark plugs instead of the OE denso 3457. I've heard a 24/8 spark plug (OEM best range) is too cold of a spark plug for a N/A engine. So I wanted to try running a 22/7 (denso 3442) plug instead. I don't want any detonation but I do race the car and am pretty rough on it. So I know that's a potential dangerous effect of going 1 step warmer. I have full bolt ons (test pipes, full cat back, pulleys, intake, etc) and I've heard 1 step warmer helps idle a little better and sparks better than a colder plug. Can anyone confirm that they're running 22/7 and haven't had any issues with detonation or pinging?! I don't wanna go colder because they're already cold enuff so I wanna stick with OEM 24/8 or go with 22/7 (1 step colder) thank you!

05-01-2015, 10:54 AM	#1 (permalink)
AstatenateZ Enthusiast Member Join Date: Nov 2014 Location: LR, Arkansas Posts: 428 Drives: 2012 370Z Rep Power: 10	1 step hotter spark plugs?! Where I'm at we have 93 octane. I am going to get tuned next week and wanted to try running 1 step warmer Denso 3442 spark plugs instead of the OE denso 3457. I've heard a 24/8 spark plug (OEM best range) is too cold of a spark plug for a N/A engine. So I wanted to try running a 22/7 (denso 3442) plug instead. I don't want any detonation but I do race the car and am pretty rough on it. So I know that's a potential dangerous effect of going 1 step warmer. I have full bolt ons (test pipes, full cat back, pulleys, intake, etc) and I've heard 1 step warmer helps idle a little better and sparks better than a colder plug. Can anyone confirm that they're running 22/7 and haven't had any issues with detonation or pinging?! I don't wanna go colder because they're already cold enuff so I wanna stick with OEM 24/8 or go with 22/7 (1 step colder) thank you!