advanced timing
The Southernmost Mod
Joined: Dec 2004
Posts: 6,902
Likes: 21
From: Caracas, Venezuela
Your timing chain probably has a lot of slack, i would be looking for a replacement if it were so. Aren't you hearing any detonations?, this is way too much advance, and also, did you remove the SPOUT before setting the timing? if you didn't the computer probably tried to adjust to the stock setting of 10° BTDC, the usual advance that doesn't risk on hurting anything is 12° - 14° BTDC.
Lead Driver
Joined: Sep 2002
Posts: 9,182
Likes: 12
From: Gateway to the West
In the river valley here in the Gateway City's humid summers the best I've ever done with base timing is 11º BTDC. Notice I said BASE timing. If you haven't set base timing correctly, the computer won't "know" it and the timing corrections it makes will screw with performance.
Absolute critical requirements for setting base timing:
1. Engine at full operating temperature
2. SPOUT "connector" (shunt) REMOVED.
3. ECM CLEARED of fault Codes before restoring SPOUT.
NOTE: This is NOT an instruction list for setting base timing! The full procedure has been repeated too many times to count in this forum and many others.
Absolute critical requirements for setting base timing:
1. Engine at full operating temperature
2. SPOUT "connector" (shunt) REMOVED.
3. ECM CLEARED of fault Codes before restoring SPOUT.
NOTE: This is NOT an instruction list for setting base timing! The full procedure has been repeated too many times to count in this forum and many others.
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mike L
1987 - 1996 F150 & Larger F-Series Trucks
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Oct 10, 2016 05:14 PM
