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Old 10-25-2006, 09:52 AM   #19
Houston C4S
Registered User
 
Join Date: Mar 2006
Location: Houston
Posts: 116
Randall,

And I apologize to the rest of you if this sort of hijacks this
thread a tad, but a couple of comments here.

One: None of the 2.5s had the dual chambered intake manifold
with the flappy thingies. And the way yours drives, it feels fine
without it. If you look in your manual, I think there is a graph
that shows the power/torque curves of your engine. Indeed,
at a point, the horespower actually lessens after a certain rpm.
That's simply a mathmatically calculated number based on torque
at a given rpm. As the torque falls off, so must the horsepower.

And that's a function of air inlets, filters, mainfolds, DME controls,
valves and cam timing/lift, headers, cats, etc. And flapper thingies,
too.

But to your question of if it is "useful" to redline the engine,
the answer is sort of a weasely one -- it depends.

On the street for everyday driving, no.

On the track, which is something I need to talk you into
doing for your own education and resultant safety (you can
quote that to your wife!), there are times where running it
to the rev limit will let you skip a shift. Ie, leaving it in third
rather than short shift to fourth and then right back down
to third again, which wears the synchros, clutch, upsets
the car, etc. At least as long as you don't bump up against
the rev limiter.

And again, it won't hurt anything to do that except
your chances of getting Porsche to help pay for your
new engine if it blows up someday.

I think that answers that.

Now on to Two:

Shhh! Don't tell anyone, I don't know how to change the name
thingy! Shoot, I don't even know how you get one of those
picture thingies next to your name.

I know I am a Mac guy and this stuff oughta be easy, but this
does not appear to be a Mac function, rather a forum thang.

So maybe you can show me? But don't let on to all these other
smart guys what a dummy I am.

Okay?

- Mark

PS: If all goes well (at least for the other guy) the 4S goes to
Dallas tomorrow. My last drive in it. Sniff, sniff!

Unless he doesn't like the color, or its condition, in which case
I bring it back. You may agree that's an unlikely scenario.

But the new Box is officially on order.

And hopefully no one will want this 2001 Boxster before around December
or maybe even January -- we have the best top down months of
the year coming up! A perfect ultra low mileage Box should sell
easily.

Otherwise I will be in a Porsche-free zone for a while.
Houston C4S is offline   Reply With Quote