Thread: Picco Glowplugs
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Old 08-24-2009, 07:55 AM
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Originally Posted by wingracer View Post
5 is hot, 6 is medium (still pretty hot) 7 is cold and 8 is really cold.

Plus you have long and short bodied plugs. Long bodied plugs are a bit hotter, so a long bodied 7 will be hotter than a short bodied 7 using the same wire for both. Not sure what Picco's letter designation is for those but that is what the different letters mean.
Wingracer explaned it here, the TH is turbo hot so a long body plug and the TC is turbo cold short body plug
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