Euro Carrera 3L ignition setup

[philippeF]

Hello
You might advice me on the basic ignition setting for an upgraded 3.0 Euro carrera engine please ?

(SSI exhaust, 964 cams, 9.8 CR)
It works better with 5° BTDC, but what about max advance@6000RPM ?
thanks
Philippe

[Bill Verburg]

Originally Posted by philippeF

Hello
You might advice me on the basic ignition setting for an upgraded 3.0 Euro carrera engine please ?

(SSI exhaust, 964 cams, 9.8 CR)
It works better with 5° BTDC, but what about max advance@6000RPM ?
thanks
Philippe

Max ignition advance w/ vacuum disconnected is 38°@6k

I'd set base timing at TDC w/ vac connected but check the timing to be sure that it does not exceed 38, if it does, go back to base 5° ATDC w/ the vacuum hooked up @900RPM

the vacuum is a retard that goes away as the throttle is cracked