Originally Posted by TheEngineer
Originally Posted by jr's3800
I think the TR55 would be equall to the 605'*... And I too have ran the 606 with no issues in the past.. But I found myself liking the AC Delco 41-606 better, also the AC Delco Rapidfire 14... That is untill I found out about the TR55... I reccomend the NGK'* for any 3800..
As for the Autolites I wouldn't reccomend aginst them.. But we will tell you to steer clear of Bosch plugs, 3800'* just don't like them..
I was unaware that the L36 hated Bosch as bad as the L67 does. A Bosch plug in an L67 is about as good as screwing a stick of dynamite into the cylinder from what I've heard.
Yes... The 3800'* especially the series 1 SC, Series II L36( 9.4 : 1 compression ) as well as the SC series II... And we have found that some of the older 3.0 and 3300 buick V6'* with the 9.0 : 1 compression do the same to the plugs... For the longest I thought this was an issue with the GM3800, but we have found that the GM V8'* with the HEI distributor was burning the plugs out as well.. I just made 7000 miles on a set when they crapped out, frind made 10,000 on a 3.0 V6...
I honestly think the fast death has to do with the DIS system in the way it operates... It uses a waste spark method, it actually fires both plugs on the coil at the same time, but the cylinder on the exahust stroke requires less power to fire the plug... Starnge system, but when all is well the system functions great.. One bad plug or wire can really take a lot out of it..
I have found the TR55'* to be worth every penny and they are one step colder than stock
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