In Reply to: Dyno analysis (feel free to tell the M5 folks) posted by Jim C. on April 03, 2000 at 12:36:17:
: Before we go onto the power aspects, let's look at the air fuel ratios.. (this is the giveaway)..
: Either this car hasn't adapted fully, or you're going to be seeing melted Aluminium quite soon.
: Take a look at the AFR readings..
: Running 14.3:1 at WOT at 6000+ rpms..
: (not for too long)
: Now, let's go to the purported "HP maximums"
: 281 vs. 273.4??
: Now I see the numbers.. but I certainly don't see an 7.6HP difference in the actual graph.. Oh, you mean the anomaly where you dropped off the throttle.. sorry folks.. that don't count.
: (Did I mention hidden agenda?!? ;)
: Now.. 275 vs 273.4 is more "realistic".. and if I have to give up 2 HP to keep the motor together under sustained hi-speed, then such is life.
: (But I dont..)
: Although I'm betting you'd find that in a few minutes, when the car adapts the midrange out, you'd see a big difference.
: Jim C.
: PS: Oh, and the "my car blew away the other one" is completely BOGUS, as you won't even SEE the effects of 10hp in a drag race, it will be lost in the "driver differences"
: PPS: This is exactly why I tell people to find
: a dyno shop that can also EXPLAIN the results
: to you in a scientific manner. There are few
You tell'em JIMMY C!!!!!