930/10 versus 930/04 Ignition Timing Specs

[911SauCy]

Before I was a 930/10 owner, I had the original US Cali delivered '78 3.0 930/04 in my car.

IIRC, igintion timing spec on that motor is 5 Deg BTDC at idle and 25-26 Deg Advanced @ 6k RPM (timed it a couple times but about 3 years ago)

Now that I'll be bolting the '83 930/10 motor in my car (ideally) this weekend...is the ignition timing spec the same as above?

Thanks

SauCe

[Bill Verburg]

Originally Posted by 911SauCy

Before I was a 930/10 owner, I had the original US Cali delivered '78 3.0 930/04 in my car.

IIRC, igintion timing spec on that motor is 5 Deg BTDC at idle and 25-26 Deg Advanced @ 6k RPM (timed it a couple times but about 3 years ago)

Now that I'll be bolting the '83 930/10 motor in my car (ideally) this weekend...is the ignition timing spec the same as above?

Thanks

SauCe

For the '81 -83 SC's they seem to have pulled back max timing and the method
spec fr these is max not above 25 BTD checked at 4000rpm, earlier SC ran up to 31BTDC

the RoW don't mention an idle spec, US does 5BTDC

all w/ vacuum disconnected

[911SauCy]

Really, don’t check the advance w vac connected?

[Bill Verburg]

Originally Posted by 911SauCy

Really, don’t check the advance w vac connected?

That's what the book says

[911SauCy]

Originally Posted by Bill Verburg

That's what the book says

Roger that!

It's why I asked

Thank you