Where can I buy performance camshafts for my
2007 Cayman s
Upon searching this forum and the internet I don't think there are aftermarket camshafts available for the Cayman or newer Porsche's unfortunately, I believe the only method may be custom ground (not entirely sure).
Of all the aftermarket modifications available I am curious as to why there isn't performance cams tho.
Possibly because the existing cams can't be improved on. The Porsche
VANOS
VarioCam is actually quite a sophisticated system, capable of changing both cam timing (when it opens) and cam duration (how long it's open for.) It's not like the old days of fixed cams where you could grind for high-RPM HP or low RPM torque.. the
VANOS
VarioCam does both, it optimally tunes the cams as the engine speed and loads change. A real "CAM" improvement might well be part of a full-engine "Tune" where the software controlling the
VANOS
VarioCam is changed to optimize other changes in the engine tuning.. but physically - I don't think you're going to improve on what we have already.
Correction - my synapsis must have gotten off track into BMW engineering - with VANOS - which is BMW's version of variable cam timing. It's actually "VarioCam" on a Porsche. Same idea, indeed almost identical cam timing mechanisms made by the same company actually.
Don, I think you are correct, this came in with the 9A1 in 2009.
Variable valve timing has been around for a VERY long time... it's implemented in different ways and to different degrees. It hasn't been used that much in cars until relatively recently, probably because of cost versus fuel prices. Now that gas is expensive, and computers are faster, VVT can help get more power and more economy at the same time.
https://en.wikipedia.org/wiki/Variable_valve_timing
Honda had VTEC (basically 2-stage VVT) back in 89 according to that page... VTEC was a big deal when it was released and FAR predates anything Hyundai is doing today. The article goes on to say that VarioCam was released by Porsche in 1992 as well. I would be surprised to see it's not on the 2006
This page seems to indicate that VarioCam Plus was present on the 2006 2.7L:
Porsche AG: More power for the Porsche roadsters - Porsche USA
I'm old. And yes, Honda was the first I remember marketing Variable Valve Timing.
These days it's extremely mainstream whether you know about it or not. The average consumer takes for granted the torque curves and HP/Liter that the motor under their hood provides.
The tuning gurus will tell you that the logic (software) management of something like the current
Ecoboost
, for example, is unbelievably sophisticated and would have been science fiction just a couple of decades ago.
The downside is the shear volume of components that must be singing in harmony simultaneously in order for the motor to be happy. It's a wonder that it ever does.
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