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I'm researching DENSO right now on heat ranges, 6 may be colder than 5.... I'm not 100% sure and I don't want to pass bum scope! I'll post the right answer soon, if someone does'nt post the answer before me.
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The heat range number located on the insulator indicates the temperature range of each DENSO spark plug. The lower the number, the hotter the plug; the higher the number, the colder the plug. [IMG]i/expressions/face-icon-small-smile.gif[/IMG]
Just got my plugs today! They sent me the IK16-3503 plugs. I don't know why they didn't send the IK20s. I think they would need something better then their @ss test to go aganst the factory's recommendations. They may just be out of IK20s if you ask me. Anyhow, I am going to install them in a little bit.
Are these pre-gapped or do I need to make it bigger, smaller, or just check to make sure it is at .44?
I am about certain that the denso site says they are pre-gapped.
Well, I checked mine befoe I installed them and they were all at .044. I guess they don't need to be. I was very surprised. When I have bought plugs in the past, the gaps were all different and had to be set. I just left them alone.
The engine seems to run more smoothly and pull more smoothly with a little better throttle response. It could just all be in my head though. I am waiting to see if my mpg improve any.
no i do think they are pregapped, but i to noticed a differnce in responce but espcially when ur jsut crusin and u slam ur foot on the gas it picks up much better. and there is no difference in MPG I didnt notice it at all.
Has anyone tried the NGK plug? I've heard they are supose to be about the same. My friend down the street have a import repair shop and recomend NGK or Bosh
Quote
[hr]Originally posted by: vdub
Has anyone tried the NGK plug? I've heard they are supose to be about the same. My friend down the street have a import repair shop and recomend NGK or Bosh[hr]
i was at discount autoparts the other day trying to order posch, they told me not to get it because its bad for my engine or something
