Originally Posted by Rusty Springs

I had some false knock counts after installing the Wood TW-222s in my 96" It was mostly around 3000 rpm and 70 to 80 kpa.

Hundreds of counts but no pinging could be heard. I kept pulling timing until it was retarded 6 degrees and it didn't improve. A richer AFR seemed to make it worse. I never had this problem with stock cams and I believe it's the increased cylinder pressure.

Going to .035 instead of .040 plug gap helped a lot. At .035, with NGK dcpr8e plugs, I was only getting 5 knocks in 100 miles. After talking to Fuel Moto I learned that I was chasing nothing. They also recommend oem plugs and wires. I have a stock engine with bolt in cams so you may be in a different boat.

The OEM plugs at .032 did the trick. I even tested my luck and beat the hell out of it on a tank of 89 octane...only one knock. Im still using the Screamin Eagle wires since I got it under control.

I don't know if this it worth anything but I measured the resistance of various plugs.

Stock 6r12 = 116 ohms

Stock Vrod plug 10r12a = 33k to 36k ohms

NGK dcpr7e, dcpr8e, dcpr8eix were around 5000 ohms

Originally Posted by 98hotrodfatboy

I took the same measurements a while back.. When I was using the NGK's I was getting a lot of false known so I went back to the 6r12's and it was clean as a whistle.. That was in the 103@10.2:1 with Woods TW5-6 cams and same stage II heads. My compression is a lot higher now, 11.2:1 so I'm going to set the timing back 2°in the entire table and do another data log and go from there..

Originally Posted by Max Headflow

You are running the woods tw5 at 11.2 to 1? Wow..

Originally Posted by 60Gunner

Triple 8s ya goof.

Originally Posted by Max Headflow

My memory don't last that long.. I'll admit, didn't notice it was HRFB.

11.2 with a 43 degree intake close.. Compression trumps all sins..

Originally Posted by Max Headflow

You are running the woods tw5 at 11.2 to 1? Wow..

Originally Posted by 60Gunner

Triple 8s ya goof.

Originally Posted by 60Gunner

The 6r12 is a bit hot for that compression don't ya think?
Equivalent to the dcpr7E. I run the 8E. I know djl runs the 9E at 11.2.
Disable knock detection. No more pulled timing.