| Author |
Message |
Ric Rainbolt (Ricrain)
Member
Username: Ricrain
Post Number: 425
Registered: 2-2002
| | Posted on Wednesday, January 22, 2003 - 10:45 pm: | |
This is from memory, so forgive me if I'm wrong. The initial advance in the Euro's is about 6 degrees BTDC at idle, but on the US catalytic cars is 4 degrees ATDC. Max advance in both cases is something like 33 degrees. It's actually all marked on the flywheel. I don't know what the spec is for the US thermal reactor cars is. |
Andrew A. Illes (Andyilles)
New member
Username: Andyilles
Post Number: 3
Registered: 10-2002
| | Posted on Wednesday, January 22, 2003 - 7:09 pm: | |
Matt...
According to my book, you're on spec. Don't worry about it. The single-distributors are just strange... but their curves seem to work fine.
Andy ([email protected]) |
Philip Airey (Pma1010)
Junior Member
Username: Pma1010
Post Number: 92
Registered: 7-2002
| | Posted on Friday, January 17, 2003 - 9:37 am: | |
As I recall the distributor advance curves are in the OMs. These are available through the owners' site for all models. |
Steve Magnusson (91tr)
Intermediate Member
Username: 91tr
Post Number: 1326
Registered: 1-2001
| | Posted on Friday, January 17, 2003 - 9:21 am: | |
matt -- Have you tried looking in the corresponding '78 euro (standard) 308 OM? I don't know if it's there for sure, but for the US version it's included there (although perhaps they showed the US stuff because it was always evolving). |
matt (Matthewmag)
New member
Username: Matthewmag
Post Number: 8
Registered: 11-2002
| | Posted on Thursday, January 16, 2003 - 6:14 pm: | |
Does anyone know if the ignition advance curve in a 78 euro spec 308, (single distributor, standard marelli electronic ignition, normal centrifugal advance) is exactly the same as the advance curve for earlier twin distributor cars? (The microswitch isn't an issue here, just the advance curve.) I have a distributor where, when set at 6 degrees at 950rpm, the overall max. advance is the same (32-33), and it stops advancing at 3400 as per the spec for earlier cars. Only problem is that it advances up much faster in the lower rpm range (1000 - 1600) than the spec for early distributors......... Just wanted to check that this is definitely wrong before taking it apart and overhauling to get the right(?) advance curve.....
If there is a different spec for this set-up, does anyone have a graph / spec?
I tried looking at the archive but though there's plenty on 308 ignition, I don't think this has cropped up. Thanks. |