Just got a sales book for the Cayman last week, and was comparing the published curves for the Cayman engines against the 2005 Boxster engines... the 3.4 doesn't look right to me at the bottom end?
Looks ok to me, the scale different, that's the only thing which makes it look different. The right hand side which is Torque ranges from 240-360 on the top one and the old graph is from 150-370. Should have kept the same scale to get a more accurate comparison
Yes, looking at the Torque. You're right that the scales are different, which makes it look a little odd. The lower-end cutoff is also 500rpm short I think.
Just got the scanner hooked up again, so taking time to post some stuff. These are straight from the sales guides.
What made me wonder was the accurate curve that those engines are supposed to draw on the spec sheet. Apart from the fact, that no engine on the dyno will provide such a geometrical graph, not even an turbocharged engine.
So to me it brings up the question, what Porsche is telling us. Do they hold back the engines' potential on purpose?
I also noticed this anomally when viewing the sales brochure. When I realized the scales were different, I suddenly wondered why. The only thing I can imagine is that they wanted to make the S curve look more appealing, hence the change in scale.
Quote: Ferdie said: What made me wonder was the accurate curve that those engines are supposed to draw on the spec sheet. Apart from the fact, that no engine on the dyno will provide such a geometrical graph, not even an turbocharged engine.
Agree. The curves I've seen are "marketing" curves. They look pretty but don't match any curves I've seen from actual dynos.