What extrapolation are you doing to get to the 278rwhp figure? See below
If I remember correctly your original dyno woth LT's and U/D pullies relfected 258rwhp. Your most recent with the cat-back and tuning showed 264rwhp. How do you figure the misfire is causing a 14rwhp loss? I compared before and after dyno number and that was the difference.
Am I missing something? See below
How did Chris determine the car was misfiring, and what does he think is causing the misfire? He had a scan tool
I know you had a bad coil-pack before. Is this something different? My local service departmentment is checking it out even as I type
more info, more info...
232.5rwhp 266.2tq (Stock)
253.9rwhp 287.9tq (Hdrs, off road, stock catback)
258.6rwhp 294.9tq (Same as above plus Steeda pulleys)
266.7rwhp 304.5tq (Same as above plus original MAF to fender
Densecharger and Paul's High Performance Chip)
Dyno last Saturday, misfire noted with the Star tool
245.4rwhp 274.3tq (Same as above no PHP chip plus full length system)
252.5rwhp 283.9tq (Same as above plus PHP chip)
264.6rwhp 303.2tq (Same as above minus PHP chip plus JMS chip)
The difference between the baseline figure without misfire and the same configuration with misfire 19.2rwhp 28.9tq
19.2 + 264.6= 278.8rwhp
28.9 + 303.2= 323.5tq
So my assumption is that if I can restore my car's power to before the dreaded misfire level then I should be very close to the 278.8 323.5 level. I'm going back to the track and dyno later this month to test my theory and of course I'll post my results. Still clear as mud?