Geek stuff

[smee]

Interesting wee article on naturally aspirated power output

https://www.blackartgraphics.com/pages/ ... our-engine

[Mikie711]

interesting read

[r10crw]

I guess strictly speaking not mainstream but does anything get close to a K series R500? What were they, 230 or 250?

C

[rossybee]

Original K series r500 was a 1.8 at 230bhp, the evo model was 2.0 at 250bhp, I'm assuming the extra capacity was due to added bore.

[David]

You often come across people who will quote figures to you that you know are just not true. It was something I learnt quite quickly with the Duratec builds and with the latest 2.5L engine, the article seems like a transcript of my discussion with Ultimate performance. Only by maintaining torque to a higher RPM do you get more power. The way I think about it is the area under the torque curve has a maximum, but you can move it around. But as the article rightly says, there are limits and it's the quality of the components that let you push towards those limits.