Ha, I was kinda think'n you were using 12 from the pic. Bob thanks for posting that link. Very good read. K9, Patrick has a very good video for reading plugs. I found VP's 12 burns a little dirty for some reason. The green color I guess I'm not sure?
Reading a plug
- Thread starter k9
- Start date
IMO go one step at a time. Easier to see what works. If you jump that many at once you'll take more time going up/down to fine tune.
k9 said:
he read that plug and told you to go up to 92's? I really doubt in this heat you would need that much more jet.
first thing i would do is make a pass on a fresh set then read them. maybe you could leave the jet and put some timing in it.... or....pull some out , or...... no shortcuts on plug reading take your time and take baby steps so you don't get lost.
Yeah, I don't think your that far off ethier. That's what I was talk'n about with running some fuels. From an 88 to a 92 is a HUGE jump in drill sizes.From a .102 to a .110. I have always move two drill sizes. In smaller jets you have to go that many numbers to get there. I would go to 89's which is a .104 drill size and watch the mph.
88=.102
89=.104
90=.105
91=.108
92=.110
93=.112
94=.115
As you can see the higher the number the more jump in drill size. After you get a ball park you can really fine tune it with Max Jets from Comp Cams.
88=.102
89=.104
90=.105
91=.108
92=.110
93=.112
94=.115
As you can see the higher the number the more jump in drill size. After you get a ball park you can really fine tune it with Max Jets from Comp Cams.
you cant get an accurate reading while looking at a plug after the cars been idleing......run it out high end and then shut it down and coast to a stop with the car off......check the plug then anf see what it looks like
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