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      03-08-2008, 09:48 AM   #11
bruce.augenstein@comcast.
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Quote:
Originally Posted by sayemthree View Post
the M3 should put about 368 HP to the wheels - 11 5 loss.
Why is this? Is this a hopeful opinion or fact based?

Quote:
Originally Posted by sayemthree View Post
Its also a M engine, not just a Yamaha hyped up engine from the Lexus 460.
Other than fanboyism, is there any practical significance to this?

As you may or may not know, Toyota knows a whole bunch about building good engines which last a very long time, and Yamaha, like Porsche, has a rich history of doing engineeering projects for other companies.

Quote:
Originally Posted by sayemthree View Post
the M3 has a much better HP per liter output than the Toyota
Other than fanboyism, is there any practical significance to this?

Nothing wrong with making a lot of power per liter, but it only matters when it actually matters. As discussed in another string, the LS3 Vette engine weighs about the same as the M3 engine, and occupies about the same amount of real estate while allowing a lower hood line because it's not as tall as the M3 motor. It also makes more power (and a ton more torque), and may in fact have better bsfc numbers. If this engine were installed in an M3, the M3 would be faster, handle a smidge better, weigh the same and almost certainly get better mileage when geared correctly for its torque curve (3.08s out back).

Not to take anything away from the M3 engine. I'm a fan myself, because it seems to break new ground in terms of how flat and wide the torque curve is.

The Lexus guys had their Lexus priorities in mind with the IS-F, and a stratospheric power curve isn't part of that scenario. It seems to be an admirable first effort, and in fact an admirable effort period.

Probably not a lot of crossover buyers between these two offerings, though. Each manufacturer is serving their constituency as best they can, and these are two very different constituencies, indeed.

Bruce