Engine Timing
Thread Starter
Senior Member
Joined: Dec 2006
Posts: 311
Likes: 12
Buick T-Type, 70 cuda, S65 and a very FAST Truck!
Engine Timing
What is everyone here seeing for ignition timing during a full pull on a stock, 93 or 100 octane tune? Mine seems to vary quite a bit based on intake air temps. Do the V12TT cars have the same three stage timing reduction based on IAT like the E55s do? On high gear pulls I am seeing -10 to -12 degrees.
The 55K motors when Intake air temps get to the following temp they pull x amount of timing.
at 35C (95 F) pull 3.5 degrees of timing
at 45C (113F) pull 6.3 degrees of timing
at 65C (149F) pull 9.5 degrees of timing
Thank you,
The 55K motors when Intake air temps get to the following temp they pull x amount of timing.
at 35C (95 F) pull 3.5 degrees of timing
at 45C (113F) pull 6.3 degrees of timing
at 65C (149F) pull 9.5 degrees of timing
Thank you,
MBWorld Fanatic!
Joined: Nov 2004
Posts: 1,691
Likes: 142
W221 S600, W220 S55 AMG Kompressor, W124 300E, W140 S320, W210 E3204M W164 ML320 Bluetec
What is everyone here seeing for ignition timing during a full pull on a stock, 93 or 100 octane tune? Mine seems to vary quite a bit based on intake air temps. Do the V12TT cars have the same three stage timing reduction based on IAT like the E55s do? On high gear pulls I am seeing -10 to -12 degrees.
The 55K motors when Intake air temps get to the following temp they pull x amount of timing.
at 35C (95 F) pull 3.5 degrees of timing
at 45C (113F) pull 6.3 degrees of timing
at 65C (149F) pull 9.5 degrees of timing
Thank you,
The 55K motors when Intake air temps get to the following temp they pull x amount of timing.
at 35C (95 F) pull 3.5 degrees of timing
at 45C (113F) pull 6.3 degrees of timing
at 65C (149F) pull 9.5 degrees of timing
Thank you,
One has 12 cylinders, one has 6. One has two turbos, the other has one.
Odd, isn't it?
