Took the Boss over to Balanced Performance on Friday for a Baseline Dyno Run. Stock with 700 miles...

 

Very nice. Thanks for sharing!!

 

Nice to see more of these putting down closer to 400 rwhp. That's more in line with what I was expecting (assuming the 444 crank was "slightly" underrated). Still holding out for TK before I will dyno mine. Next spring?

 

Nice numbers indeed.

 

Great numbers. You definitely got one of the strong ones. Would love to see what that thing would do with a Whipple on top.

 

Nice numbers indeed - thanks for posting!

What I especially like is that you have four runs with the same configuration.

Some observations (not specific to your car):
- The four runs show a max hp of 404.5 and a min hp of 398.6 - Makes me wonder how people think they can detect a difference of this order of magnitude when testing products
- The SAE correction factor is 1.04 - how do they come up with this? I believe this means that the numbers are inflated by 4% over raw measured values. Using an SAE factor of 1.0 would yield a top HP of 389. Not saying that this is incorrect - but this is a source of differences in different reported numbers.
- The absolute numbers are nice, but how does one correlate the results from one dyno against another? It seems that calibrations vary significantly.
- Interesting that the HP numbers seemed to be higher with the higher ambient temperatures (given the tight timespan of the runs, this seems likely to have been caused by higher engine temperatures rather than an actual ambient change).

 

The uncorrected numbers (1.00) would be lower because of the high temps. On the track you will see lower times.
Run at a lower temp. they would correct in the other direction (higher uncorrected). On the track in colder weather you can see higher times.
Going from one dyno to another is not an exact comparison.
When tuning, you should stay with the original dyno for a realistic comparo.