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New vs. Old M HP Real/tested? (archive)
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Posted by John H. on July 22, 2001 at 23:24:45:

As my posting last week revealed, though I've been true to my '00 M, I've lusted in my heart for the '01 M. Help me out with the extra $/extra HP calculation. What I'm wondering is, was the 315hp (or so) quoted by BMW for the new E46 engine a real number based on real dyno testing?

I've read here that BMW didn't bother to test/quote different numbers for the E36 M3 engine when they put it in the M Roadster & Coupe, and justed quoted the 240 HP which a typical E36 M3 has in the M Roaster/Coupe brochure. This despite the fact that the Roadster & Coupe have a less restrictive dual exhaust that should increase HP over the M3 (although it's quoted in brochures at 240 HP my engine tested out on a dyno at 260+, which seems consistent with results others have gotten for Roadsters & Coupes). I've also read that the E46 engine has been detuned for the Roadster & Coupe, and know that the quoted HP is less, suggesting that 315 (or whatever it is) is the real HP number. Any thoughts?

John
'00 M Imola

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