chilled

Hypersonik, you are completely and uttely missing my point and pointing me towards your article is completely irrelevant.

I'm talking about the flexibility of an engine. Whilst torque is reliant on power and revs, the multiplier involved (to oversimply the maths) VARIES from engine to engine.

The 350Z engine is MUCH more flexible than the S2000 engine. The S isn't as inflexible as people make out, but when compared to the direct competition is it inflexible.

I was driving the E46 M3 today. It's still reasonably peaky, but again, it's flexibility is mid way between the Z and the S. It's going to be quicker in almost every situation than the S and Z, but the comparative flexibilty is still less than the Z. I HAVE driven all 3 so I'm not bollocks here.

A peaky NA engine like the S is very similar to on/off boost of a turboed engine, but with a decent throttle response.

Ultra_Nexus

Oh I don't doubt that you know what you drive and how it drives

The peakyness is all down to cam profile (which i'm sure countless numbers knew ). As you say, unfair on the S as it punches meteorically beyond it's capacity. Truthfully, compared to a Mundano 2litre, S feels just as good/smooth. Whilst revs help to achive it's power, it still has to deal with fluid dynamics/physics. VTEC helps the S, but compared to the other engines you mentioned, it's not enough. 100bhp down on the Beamer is a tad unfair I think.

The M3 only has one cam profile for a high revving engine which is why it feels peaky. at lower RPM it's flow efficiency won't be as good as the S or the 350Z, but it's capacity helps it.

The Z isn't a high revver (7200?) and can comfortably operate smoothly with valve timing alone.

I'd be willing to bet that an NSX isn't peaky, especially the 3.2 litre jobbie

lower

[QUOTE=Hypersonik,May 18 2008, 01:51 AM] Revolutions are a direct replacement for displacement.