[Fot] GT6 cam

[Robert Lang]

 Hi,
You probably got a few responses off list too, but I have direct experience with the two cams mentions, the Piper BP 270 and the Goodparts GP3. My experience is 100%TR6, but the numbers do transfer to GT6, IMHO.

The BP270 has a super-flat torque curve. I ran that cam for around 10 years in a race-only autocross car eventually pushing the c/r to 12:1 and on a chassis dyno it got up to about 150 lb/ft of torque.
I switched to the Goodparts GP3 in order to try to build in some higher end HP. With the GP3 and 12:1, I got almost the same torque, but HP was up about 10 HP, all of it at the upper end (4000 to 6000 RPM).
For a street car, I would not go a lot more than 280 degrees seat to seat valve timing. Any more than that and the engine go off song under 2500 RPM. This really matters for a street car!!! So, if the car is driven on the street at all, do not go "hairy" on the cam. You will regret it.
Good luck deciding.
Regards,Bob Lang

    On Wednesday, June 24, 2020, 2:22:09 PM EDT, Dennis Walje <walje at sbcglobal.net> wrote:  
 
 
Does anyone know a source for a GT6 performance cam?  I’m building a GT6 for street and track days. 

Thanks 

Dennis Walje
68 GT6

Sent from my iPhone
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