advanced timing could this be detination - Page 2

Togie · Nov 4th, 2004, 01:14 AM

Quote:

Originally Posted by BikerFry

You shouldn't have any trouble running 15* with 93 octane gas. But if I did my math right you're getting 23 miles per gallon, which is pretty crappy even in city driving. Might want to do a tune up.

That's 30miles per gallon. Is it okay?

Togie · Nov 4th, 2004, 04:16 AM

Quote:

Originally Posted by BikerFry

One of your numbers is wrong, either the 8 or the 92.

8* BTDC is stock timing, so 87 octane would be fine but you'd have no power gain.

15* BTDC requires 91+ and will net close to 5hp in the midrange and around 2hp peak.

Here's the table for ignition timing this may help.

Timing
Year(s) Country / State Manual Transaxle Automatic Transaxle MPG Model
1982 United States 2° ATDC 6° ATDC 2° ATDC
1982 Canada 4° ATDC 6° ATDC 2° ATDC
1983 United States 5° ATDC 5° ATDC 2° ATDC
1983 Canada 5° ATDC 5° ATDC
1984 - 1985 California 5° ATDC 5° ATDC
1984 - 1985 Other 49 States 15° BTDC 8° BTDC
1984 - 1985 Canada 5° ATDC 5° ATDC
1986 California 5° ATDC 5° ATDC
1986 Other 49 States 10° BTDC 10° BTDC
1986 Canada 5° ATDC 5° ATDC
1987 - 1990 All 7° BTDC
1991 - 1994 All 10° BTDC
1995 - 1999 All 8° BTDC
Idle Speed
1982 All 700 RPM 600 RPM 700 RPM
1983 - 1984 All 750 RPM 650 RPM 700 RPM
1985 - 1986 All 800 RPM 650 RPM
1987 All 800 RPM 700 RPM
1988 - 1989 All 800 RPM 700 RPM
1990 All 800 RPM 900 RPM
1991 - 1994 United States 650 RPM 800 RPM
1991 - 1994 Canada 750 RPM 800 RPM
1995 - 1999 All 625 RPM 725 RPM