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[Banana man]

I have checked my mileage several times before and three times after I put the
new plugs in, and no other mods. If you guys don't believe me thats fine I
understand and I would probably think the same way, but I went to there
website and I liked what I saw. It cost me $11.00 plus shipping to try them
out. I spend more money than that every time I go out to eat. IMHO it was
a good investment. You guys can think whatever you like all I know is that
it worked for me.

If you are interested enough go to there website and see what you think.

BTW Joe on Horsepower TV pulled 7 more HP out of a 350 Camero on a dyno
by changing to these plugs.





                                        Mark

[sehawg110]

Best advice I have read about in American Iron Mag. is to run a cold plug in the rear cylinder to offset a heat problem.  I measure .40 gap.

[Talon]

Heat ranges don't necessarily change the heat of the cylinder. Here's a line that talks about spark plugs.

http://www.nightrider.com/biketech/spkplghnbook.htm#discussed

Craig

[EZRIDN]

Going to bring this topic back to the top...

Since I am now due for a plug change...just a regular maintenance thing I do...not because I have to...I did a search to see previous threads.

I kept an article because I knew that I would someday want to re-read it.  Has anyone seen the June issue of Thunder Press article "Motorhead Memo" by Kip Woodring?  Interesting numbers being posted about temperature, electrical resistance, melting points, etc.   He does not push a brand and leaves one to thinking maybe there are alternatives worth merit.  There is a small followup in the Aug. issue in the Letters dept where they talked about specific brands/plug numbers.

I'm going to give the Denso IXU24 a try.  This is one heat range colder than oem.  Was thinking of gapping at .035 also.   I have not seen evidence of fouling with the current plugs and have always used the stock 6R12 in the past.

Going back to my racing days, we always ran the coldest plug and shortest gap to get the most power at high rpm. 

Anyone have recent real experience using the Denso's?