Lloydguy

10.6 IMP gal. or US?

Here is a pic of another new set of plugs that had 2-1/8 mile 6500 prm runs,then a wide open run
for almost 1/4 mile.This set is AFTER I raised the needles 2 positions.
 set after raising needles pic 1.JPG   180.37K   1 downloads

with a black marker I made a mark across the electrode post (whatever its called)
where the burn mark stops.I know this means something about the heat range,but
I'll have to re examine some old plug reading posts .

Stock pipe ,stock can.As per above info.I do not know what engine mods have been done.
Dess.oil onjection and Dpm were removed by previous owner.  set before chop sets.JPG   152.34K   1 downloads
This is the set I was running before doing the plug chop's

Wide open run was less than 1/4 mileIs that enough to get enough info from the plug?
Pto plug is slightly tan on the top of the porceline Mag side is a little too,but for sure
not as much. Since my EGT's were quite high in the 6000 to 6500 range,I lowered
the clips on the needles 2 positions,or raised the needles whatever is the proper way
to say it.
Any feedback would be awsome guy's,I'm in need of help.

So, Digitron is in and working well.I have some more info to post and see if I can get some help.
I am getting much higher egt.s in the 6000 to 6500 rpm range than at WOT.?I know a little but not
enough to solve my problems without some help.
I did afew plug chops and am needing advice.Everyone always says to post more info,So I've got
lot's of it.
Temp -20 C , Elevation approx 2200tf. ,Pilot's 55's,needles 7ecy1 , needle position of 1'st plug chop
2'nd slot from the top , Max rpm approx 8200 , main jet's 370/360 , plug gap's .026" , Egt's at WOT
1165/1169 , probes 2.25" from edge of head , Burn ring (what ever you call it) on
PTO plug 2.6mm at the widest, 2.1mm at the narrowest.
Mag plug 2.5mm to 1.8mm
Egt's were 1210-1225 from 6000-6500 rpm then cooled down to above mentioned temps at WOT