A few of you who were at this weekend's NorCal dyno day will recall that I had severe missing on the dyno and could not break 400hp despite having a L-pulley, chip, and exhaust. Vince, a technician and our dyno operator, suggested my spark plug gap may be too wide. I originally gapped my NGK TR6's at .040 for the 3.2" pulley. But with the 2.93 he said I would need to close the gap down to .035 or smaller. Man, I can't believe I missed that. I was really kicking myself that evening. This was supposed to be the dyno run to validate my new Amazon chip.
This morning I just couldn't stand it any longer and I went out to the driveway and regapped my plugs while still in my pajamas. My 3 and 5 year old sons sat on the porch and watched my whole obsessed act. They had that look of disbelief like I was trying to build a time machine out of plywood and duct tape. Like Dad has finally lost his marbles. But it did not take long and I was done before a crowd formed in the street.
I did a couple of full throttle runs on my way into work and the difference is amazing.
As it turns out those plugs must have worn down over the last 7500 miles as most were in the .046 -.050 range. Geez, no wonder it was so sluggish on the dyno. :idea:
This morning I just couldn't stand it any longer and I went out to the driveway and regapped my plugs while still in my pajamas. My 3 and 5 year old sons sat on the porch and watched my whole obsessed act. They had that look of disbelief like I was trying to build a time machine out of plywood and duct tape. Like Dad has finally lost his marbles. But it did not take long and I was done before a crowd formed in the street.
I did a couple of full throttle runs on my way into work and the difference is amazing.
As it turns out those plugs must have worn down over the last 7500 miles as most were in the .046 -.050 range. Geez, no wonder it was so sluggish on the dyno. :idea:
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