What type of plugs you guys running?, other than the Bosch supers..... Options

[dlo914]

im just curious to see if anyone running like the Bosch Platinum +2 or +4 actually felt a difference. Other than that i would assume NGK plugs would also work. Well for most things i already know the 2 or 4 pronged plugs dont get 4 sparks, but it just provides the spark more options to spark to. But i just want first hand experience of others using different plugs, before i purchased a new set of plugs....so bring on the plug info.... (IMG:http://www.914world.com/bbs2/html/emoticons/mueba.gif) o and do these plugs actually increase gas mileage?

[Sparky]

I've been helping a guy get together a website and some marketing stuff for his business. One portion of his business is testing sparkplugs. My first thought was umm yeah ok. But thenI sat with him for an afternoon and watched him test a set of NGK's I picked up on the way over. I bought 8 plugs from a FLAPS and out of the 8 only 1 was bad. To test them he uses a nitrogen pressure chamber to simulate compression ranges, he asked what we run in teener and I said lets try an average of 120 per cylinder. He begins by letting the plugs sit and run at about 50% pressure and we started watching the o-scope. It tooks about 5 minutes for the plugs to settle down and start firing nice and evenly. He started bringing the pressue up slowly to 120. The KV demand was consistant with the exception of this one plug. I dont have the numbers here in front of me but the KV demand rose as the pressure increased, which it is supposed to do. But with this one bad plug the KV demand just shot thru the roof. At 120 the bad plug instead of firing a nice pretty spark and having a consistant KV demand started arcing over and it was wild!! He tested a set of Autolite (75% failure rate), Bosch platinums (5% failure rate) and a really cool set of Denso Iridium plugs (no failures). It was a very educational day and he is going to help me setup the teener with an ignition system that should be damn near bullett proof.

Based on his testing experience over the past several years the NGK's and the Bosch Platinums are the better AUTOMOTIVE plugs. The multi-tip plugs didnt test very well and he said he wouldnt put them in his scooter.

Most of his testing is for race teams and industrial applications.

Sorry for the length but I thought some of you would find this interesting.

My best,
Mike D.