Originally Posted by HybridSS

Good catch. I should not have made the example have more HP. But what I said about looking at the peaks alone still holds true. I should have given an example of the Tq dropping off drastically instead of maintaining it through the rpm. But as far as you making the inference that the two cars...one making 100hp and 100 tq (at5252)and one making 100hp and 200 (at 2626) will tie is still wrong.

Lets look at what might be possible given tha parameters you have laid out.

engine 1: peaks at 100 both HP and Tq at 5252
but what about the rest of the rpm range?
2000 rpm = 25 ft/lbs 25x2000/5252= 9.5 HP
3000 rpm = 30 ft/lbs 30x3000/5252= 17.1 HP
4000 rpm = 60 ft/lbs 60x4000/5252= 45.7 HP
5252 rpm = 100 ft/lbs 100x5252/5252= 100 HP
6500 rpm = 50 ft/lbs 50x6500/5252= 61.9 HP

Now thats a peaky POS motor but it still is within the parameters you stated.

Now lets compare the other engine and keep it within the paremeters you stated of 100 hp and 200 tq at 2626 rpm

2000 rpm = 199 ft/lbs 199x2000/5252 = 75 hp
2626 rpm = 200 ft/lbs 200x2626/5252 = 100 HP
3500 rpm = 150 ft/lbs 150x3500/5252 = 99.96 HP
4500 rpm = 115 ft/lbs 115x4500/5252 = 98.53 HP
5500 rpm = 95 ft/lbs 95x5500/5252 = 99.48 hp
6500 rpm = 75 ft/lbs 75x6500/5252 = 92.8 hp


Its glaringly apparent that engine #2 will STOMP a mudhole in engine #1 one if they were in the same car with the same gearing and same weight. And we have stayed withing the constraints you set. Obvioulsy these are extreme examples. Like I said...looking at peaks alone really doesnt tell you much.