I can't tell you how the power curves would compare, but generally, if
you have a motor which is capable of higher revs you will want to use a
cam with more duration, i.e. valve open longer. I beat this subject to
death at my website http://tildentechnologies.com/. In my opinion, for a
7 to 8,000 RPM motor you probably want at least 260 degrees duration at
0.050 lift. What kind of cams are the other hot GT6 racers running?
Larry Young
On 1/4/2013 11:30 PM, Jason Sukey wrote:
> I'm looking at camshafts for my GT6 and am seeing that most of the 6
> cylinder cams are marketed for the TR250 and TR6. Does anyone have any
> experience with how these behave in the higher revving 2L GT6 engines?
> Does the same cam act "bigger" in a GT6? Do they act similar?
>
> For example, say a certain high performance cam has a peak torque at 4700
> rpm and runs out of steam by 6500 rpm in a TR6. If I put the same cam in a
> GT6 engine (assuming all the other variables are the same), would it "come
> on" at a higher rpm due to the smaller displacement/ shorter stroke and
> lower port velocity in the head? Would the shape of the torque curve be
> similar, only shifted to the right a bit for the GT6?
>
> Thanks for any input,
>
> Jason Sukey
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