Quote:
Originally Posted by frnkeore
Unfortunately, the only way that we can get answers is, with a dyno and then compare one build, against another, on the same dyno, to see where the last bit of HP comes from.
Dynamometers are the only tool that can tell the difference in one build vs another, that's why I asked this question. Everything else is subjective.
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A dyno is ONE way to get SOME answers but definitely not the last word.
Engine dyno comparisons are for TV shows.
Seldom you will find 2 vintage engines running at the same track on the same day that are worth comparing. There just are not that many around.
Lap times on a circle track or top speed and ET on a drag strip are far better ways to tune.
Picture this, you just spent 40K on a new engine that developed XXX hp on the dyno yet your buddy from down the road timed in 3 tenths faster than you and can pull you a car length on the straights. He has no more money or savvy than you do but he DOES have 2 weeks of on track tuning that you don't have.
Computer programs that calculate hp, ET and top speed etc are quite accurate
if you have good data to input.