Join Date: Jul 2008
Location: Melbourne, Australia
Please help!! 1.7 8V twin carb cam profile timing
I have searched high and low, but haven't been able to find the standard cam profiles for the 1.7 8V twin carb motor. The reason I want to know is because I want a basis to go from to choose a high performance street cam.
I've measure (roughly) my lift which is about 10.3 mm, and from what I can see it has roughly, 295 degrees duration.
This leaves me confused as in the 33 cd manual that I have it states the intake timing at 54 BTDC & 84 ABDC, that means its 318 degrees duration!!!! I find this impossible to believe for a standard cam.
I have been looking at 'road max' C&B camshafts, but after doing some research on the standard cam profiles, these cam profiles seem to be a poor choice at best, with only 11.2 mm lift and 280 duration.
I need to find out the specs of the standard cam profiles so I can move on with this project. I've put 16 valve pistons in, which should bring the compression to around 12:1 so I would like to match that compression with a suitable street cam.
Any help would be greatly appreciated.