Wheeler 2,527 Posted November 2, 2021 So as per manual, the hotter plug heat range is specified for a colder climate. I’ve never noticed this before until today.. regular is DPR8EA & 5c or colder they spec DPR7EA… I’m going to get one & try it.. not sure if I’ll gain/benefit from it, but she’s already down to -5 c…. 1 Share this post Link to post Share on other sites
shadetree 5,970 Posted November 3, 2021 standard plug is all you really need. 1 Share this post Link to post Share on other sites
SlammedRanger 1,560 Posted November 3, 2021 I run a one step colder plug. Because im high compression. Stock for my quad calls for a DPR8Z. I run a DPR9Z. But that is just what i was told to run for my build. Not exaxtly sure the reasoning behind it? Something to do with the higher compression creating more heat and causing pre-ignition. Get to technical for my understanding lol 3 Share this post Link to post Share on other sites
Melatv 797 Posted November 3, 2021 Buy a NGK IRIDIUM plug 1 Share this post Link to post Share on other sites
Wheeler 2,527 Posted November 3, 2021 I read the same thing about going with a higher compression piston. I still have a colder plug kicking around as well. I put the hotter plug in, & I'll try it out while hunting, & keep eye on the all around performance, & see how if any difference there is... Share this post Link to post Share on other sites
Wheeler 2,527 Posted November 5, 2021 (edited) Well that was a flop.. #7 wayy to hot. I had to pull over this morning while out hunting & swap back to #8. She was running like crap & plug was white! Back to #8 & runs like a champ.. I had to try.. Edited November 5, 2021 by Wheeler Share this post Link to post Share on other sites
