jacob80 Posted September 17, 2009 Share Posted September 17, 2009 Hey guys, Just wondering if you could walk me through timing the motor. I'm going by mobys write up and assuming the most advance i'll need is 45 degrees, not sure how to expect this number but i'll go with it, play 5 degrees of trigger so 50 degrees. To my understanding, I set the motor to TDC, then crank it back 50 degrees. Then, I'll turn the distributor until the ignition light on the ECU lights up and lock it down. Now I am assuming I won't have to touch the disctirbutor at all from here correct? Ok so next, somehow I have to make sure/sync the computer with the timing tab using a timing lights and when they match at idle its done then, correct? Correct me if I'm wrong, I'm slowly but surely leaning all this. Any help would be greatly greatly appreciated. MS1 V3.0 Stock oil pan to valve cover Stock turbo Front Mount 42 lb 440cc bosch injectors Quote Link to comment Share on other sites More sharing options...
mobythevan Posted September 18, 2009 Share Posted September 18, 2009 That sounds correct. Once you get dizzy locked down near the correct area you can go to the timing light and make the final adjustments in megatune to the trigger angle. That will make the timing in your spark table match the timing light. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted September 24, 2009 Author Share Posted September 24, 2009 That sounds correct. Once you get dizzy locked down near the correct area you can go to the timing light and make the final adjustments in megatune to the trigger angle. That will make the timing in your spark table match the timing light. Wait, you dont fine tune the trigger angle, right? I though you set your trigger angle to ~50 (45 degrees maximum advance plus 5 degrees of trigger). I read in your write up that you have someone crank the motor and you look for 5 degree btdc (which is what I will set my cranking angle at) and if the timing light doesnt agree you makes adjustments in megatune somewhere, does this sound right? Where within megatune do you make the fine adjustments? Quote Link to comment Share on other sites More sharing options...
S130Z Posted September 24, 2009 Share Posted September 24, 2009 What if you are running MegaSquirt II 3.57 and your ECU does not have any LED's on it to tell you when your adjustment is close? My "friend" was wondering about this. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted September 24, 2009 Author Share Posted September 24, 2009 Additionally, when you set your trigger angle and sync it with the distributor physically, wouldn't it thrwow everything off if you changed the trigger angle inside megatune to anything but 50 degrees for your trigger angle? There has to be another input to sync the physical timing to the timing in megatune Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted September 24, 2009 Share Posted September 24, 2009 What if you are running MegaSquirt II 3.57 and your ECU does not have any LED's on it to tell you when your adjustment is close? My "friend" was wondering about this. Take the lid off; you'll see the LEDs inside it. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted September 24, 2009 Share Posted September 24, 2009 I think you guys are overthinking this. Read the spark section of the manual and try setting the timing with a light. Let me know if that doesn't work out then we can discuss specifics. Quote Link to comment Share on other sites More sharing options...
S130Z Posted September 25, 2009 Share Posted September 25, 2009 Take the lid off; you'll see the LEDs inside it. Thanks Matt! I will let my "friend" know this . Quote Link to comment Share on other sites More sharing options...
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