Euro 3.0 cam timing ranges

[911mnypt]

Lost my notes and can't remember the cam timing ranges for a 1980 euro 3.0 motor?

Thanks,
Richard

[Bill Verburg]

Originally Posted by 911mnypt

Lost my notes and can't remember the cam timing ranges for a 1980 euro 3.0 motor?

Thanks,
Richard

'76 & 77 C3 used the most retarded timing spec for intake opening initiation @ 1* BTDC, retarding the cam timing theoretically helps top end hp

Some of the SC's used as much as 7* BTDC, advancing the cam timing theoretically helps bottom end torque

'84-89 Carrera 3.2 split the difference @ 4* BTDC

For the '78 - 81 SC's it depended on the year and engine installed
930/04,05,15, 06, 10 were @ 1* BTDC

930/03, 13, 07, 08, 09, 19, 16, 17 were @ 7* BTDC

[911mnypt]

Thanks Bill for taking the time to respond and useful info!...sorry if I was not clearer with my question. I am re-installing my cams and wanted to advance them a little. I can't remember the mins / max on the ranges. I think the stock SC motor is 0.9 - 1.1 mm?

[john walker's workshop]

euro spec is 1.4 to 1.7 if i remember right. spec book is at the shop.

[911mnypt]

Originally Posted by john walker's workshop

euro spec is 1.4 to 1.7 if i remember right. spec book is at the shop.

That sounds about right, however if you can verify tomorrow I would appreciate it!! I think you actually gave me these specs about 1.5 years ago, however my dog ate my notes...

Thanks,
Richard

[Flat6pac]

If you want all the power in the high end as the euro s do use .9 if you want street power off the light use the 1.7.
Bruce

[911mnypt]

I am running weber's so I am curious to see how this all comes into play...especially after the distributor re-curving is done.

Thanks,
Richard

[john walker's workshop]

went by the shop for a sec. 1.4 to 1.7 it is.

[911mnypt]

THANK YOU VERY MUCH!

Richard