In all cases, I've posted best dyno run (usually the third) against best dyno run. Each time I've been they've done three, except this last time, when run #3 screwed up (I think the lead was being interfered with by one of the spark plug wires), and they did a fourth. So the data that's up top was pre-Flow best v. post-Flow best. I'd have to look back at the sheets to get the lowest numbers. However, while the runs were done about 6 mos apart, they were done on the same dyno. And yes, I recognize that conditions are different (though they're supposed to be corrected) and that even the same dyno has a margin of error (wonder how much from run to run?), but one thing's clear, I certainly did not GAIN any HP/TQ with the Flows. Another thing is clear too, they still sound a lot better than stock.BMan5150 said:
Bierbelly - did you do just one run or severalruns on the dyno? If you did more than one run, could you post those dyno numbers too? How about your pre-Flow dyno numbers? What were your worst dyno numbers on the pre-Flows you are comparing your post-flows too?
PS. Hey, do us a favor and dyno again just before and just after you have the CB put on. Some seem to think that the welded in Flows might be a problem, since the stock tubing is smaller diameter than the Flowmaster Catback. Maybe you'll get an increase, who knows. But I've decided to dyno after every change to see if there's really any gains to be had, and if so, about how much. Trying to be informative to the members.