Well i was webbing the other day when i came across with this:

 

Introduction - http://somender-singh.com/content/view/7/31/

 

http://www.somender-singh.com/

 

http://somender-singh.com/content/view/65/43/

 

well my question is, have anyone try this in a 4K???

i don't know what to belive because its not just another fuel saving magnet,

it have been tested by a lot of people with good results overall and they seen

like real people. i woult try it, but i only have one 4K and its daily driver so i

can't mess a lot with it. I think that maybe some people who has the skills and

lots of 4K heads around can do something..... and tell the comunity :)

I hadn't seen this one before but I did see another trick a while ago. They do the opposite and cut small grooves into the piston sides down to the rings, thoery is that it burns the trapped fuel and gives a bigger bang. I have actually whitnessed it first hand and it works... to a degree, so I don't see why doing the head wont either.