[Dimman]

Originally Posted by Aki

Any point beyond that, when horsepower gains you'll see the torque dropping on a dyno.

6400, 7000, and 7500 rpm are all more than the magic 5252 number.

Originally Posted by Aki

Uh what? Higher-strung motor will make MORE torque?

How about the fact that 3GSE making 159 ft/lbs at 206 hp is LESS than the 1st-gen Scion TC makes more torque (163 ft/lbs), in spite of having 45 horsepower more (161)?

Apples to oranges, Aki. All the motors I reference are 2.0L, the Scion motor has an extra 400cc of displacement.

Originally Posted by Aki

And you didn't notice the fact that the F20C makes its max torque 900 RPM higher than the 3GSE? 600 RPM more for the K20Z1? I'm scratching my head at why you're pointing at those two engines, because they're still proving my point.

I'm educating you, and seem to be failing. Look at the 3SFE and the BEAMS 3SGE. Same engine, different heads. More power, higher rpm, more torque, higher rpm. The point was to show the similarities of what happens when you spin a motor for power. Again all are the same displacement. In these motors you see the power rising, the torque rising, and the peak rpms rising.

Originally Posted by Aki

It's a simple math. Horsepower is calculated by torque X rpm / 5252. The higher the RPM, the less torque you need to hit the magic 200 hp number. Engines that hit their peak later in the RPM range will have less torque compared to an engine that makes it lower.

It's good that you can understand the math calculations but your knowledge is incomplete. This is what the engines I listed disproves. In all the engines I listed, the ones that make more power at higher rpm also make more torque. And they are all the same displacement, all naturally aspirated. In fact all but the F20C even have the same bore and stroke.

If you want to come back and say if they had equal power at large rpm differences it would it would prove your point, go for it. All it will prove is that you don't have a very good understanding of how these things work.

Originally Posted by Aki

Diesels and FI have lots of torque because they hit their peak at low RPMs.

These are not the same and the reasons are different. For one diesels cannot reach high rpm due to the rate of burn of their fuel. FI is cramming more mixture in and that changes based on boost. Part of the reasons for FI is so the engines don't have to spin to make power. They are designed that way, cramming in more mixture as soon as possible. If you wanted an all out FI powerplant it would be similar to what the NA's would look like. But usually for reliability boost tapers off at higher rpm, or ignition is less aggressive. Again apples and oranges.

But saying that they make lots of torque just because their power peaks are low is ridiculous.

Originally Posted by Aki

Nor is torque the end-all be-all. By that logic, you should buy a Golf TDI, since it makes 236 ft/lbs of torque, which will definitely be more than an N/A 2.0 in the FT86.

I never said it was. I just said your explanation was completely wrong.

Hope this helps.