Piggysniffer Posted October 24, 2016 Share Posted October 24, 2016 Savs, me is confoosed, the heat 7... I am reading that the 7s are a 1 step colder plug than the 6 ? 1 Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted October 24, 2016 Share Posted October 24, 2016 Just had a quick Google and apparently it looks like everyone recommends the "cooler " 7's to lessen the chance of carbon build up not burning off . Not because they're hotter burning (like I assumed ) well spotted [emoji106] But I'd still stick by the same recommendation of 7's , although it's for different reasons [emoji6] Quote Link to comment Share on other sites More sharing options...
Piggysniffer Posted October 24, 2016 Share Posted October 24, 2016 Was just curious as I decided I wanted some in my hawk after reading this......., so phoned my local factor.... ngk ilfr7h x4 = £64 😳 Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted October 24, 2016 Share Posted October 24, 2016 No problem bud ,I love to learn something new and always keen to share when I do [emoji106] Some of the "staged" power up grade packs on subaru tuner pages always discribe heat 7's as a upgrade and from what I've previously read, it was due to the better heat properties . So I just assumed they coped with higher heat not burnt off carbon at a lower temp . I've had the same set of 7's in my forged build for 4 yrs / 20 k without any issues but admittedly I did give them a clean up and regap when I fitted the engine into the v1 sti . Couldn't tell you if that's the right part number as I can't remember what mine was . They'd probably be different if your's is a 2.5 as the 2.5's run different length plugs anyways [emoji6] Quote Link to comment Share on other sites More sharing options...
Sandals Posted October 24, 2016 Share Posted October 24, 2016 2 hours ago, Piggysniffer said: Was just curious as I decided I wanted some in my hawk after reading this......., so phoned my local factor.... ngk ilfr7h x4 = £64 😳 That's pricey! I went with these ones... get the club discount as well! http://www.opieoils.co.uk/p-64112-ngk-sparkplug-platinum-spark-plug-pfr7b-ngk-4853.aspx Quote Link to comment Share on other sites More sharing options...
Piggysniffer Posted October 24, 2016 Share Posted October 24, 2016 Too late , they are fitted lol, I'm still crying, coulda got them off the bay for 43 quid but can't wait Quote Link to comment Share on other sites More sharing options...
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