General consensus on boltons to gain the most HP.

Jordo!

Any wild chance you can get the drf's? If so would you mind sharing them me?

I always thought your dyno was bit on the low side for baseline, but from what I've seen the range is roughly 268 - 278, so it's very close to the rest of the data points.

Also, was that baseline SAE corrected? If uncorrected it could be the ambient conditions were knocking out a couple of ponies, or possibly, the engine needed a bit more break in time -- how many miles on the engine when you got your baseline?

Also, as we've both noticed, the ECU takes a full pulls to adjust itself, so if you only got in 2-3 pulls, it might have dyoned a tad higher on the next few runs. Hard to say.

I'm not sure exactly how much the difference in elevation would make, but presumably it would result in some degree of overcorrection upwards, possibly by 1-2%

If you can get me your drfs I can probably figure out more of what's going on. At minimum, I can tell you the correction factor value that was used (might also be noted on the printout).

We're pretty much at 0 elevation here in FL, so for us the only power killers are heat and humidity

STD tends to overcorrect upwards for NA engines -- 309 is probably spot on as a conservative estimate and 318 would be a slightly high "bragging rights" dyno

Not sure what you mean by "actual power", but if we estimate your drivetrain losses as measured by that particular dyno (assuming same dyno all runs) to be around 21% (which, BTW, is waaaaay higher than indicated by most dynojets, so again, I think you just had an unusually low baseline), your power to the crank now would be around 391 (SAE) to 402 (STD).

Assuming you just had a wonky baseline, going by the typically seen 16 -18% drivetrain losses would put you a bit lower at the crank of course... either way, the 300 - 309 whp (what matters) ball park sounds about right -- sweet!

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