Horsepower Estimate?

Back in the days when that dyno was fairly well know for being extremely happy.

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Indeed.

It got fixed after one of the Enginmasters competitions.
Initially, the prelims were done at 3 locations.
It was something like the best 3 from each location would meet up at Westech for a shoot out.
The entries from the other two locations miraculously picked up a bunch of power on the Westech dyno.

Then there was some statement made regarding some anomalous weather system, and that was the reason for the discrepancy……….but then at some point after that the story became, the barometer being used at Westech was pretty far off.

I seem to recall it being said that with the new barometer readings, the power numbers were about 5% lower.
But……..I saw some old tests from there where 5% lower numbers would have still seemed too high.

We used to joke here that the Westech numbers were “retail HP”.