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Megasquirt Need some help with accel wiz an timing

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Old Oct 6, 2010 | 02:01 AM
  #1  
gabs88gxl's Avatar
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Need some help with accel wiz an timing

Ok so heres whats going down. After all the problems i had before i got them all ironed out and fixed. So far I have a pretty decent map and tune threw boost. But heres my thing that is kicking my booty. I had my accel wizard set up to what aarons write up said. I read thew the msextra an kinda got a basic idea on how and what i need to do to clean up my throttle transitions.

But Heres the problem, the car runs great boost smooth but when i shift at high rpm or pulling through first to second second to third ect. Its like i hit a brick wall The car bogs. Then you have to kinda ez your way back into throttle not super slow but normal. Its kinda hard to explain. But thats as good as i can at the moment.

Now as for timing i was having problem with when I would boost at high rpm boost the car would backfire an fall on its face. So i added a few degrees of time to my boost areas an it seems to have fixed it. But my biggest question is what would the ratio for boost to timing. Ive heard people say .75 degrees for every 1psi of boost. Then for every 1Psi add degree so a 1:1. Im planning on boosting 10-12psi what would be good for that timing wise
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Old Oct 6, 2010 | 03:08 PM
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muythaibxr's Avatar
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I can't answer your boost ignition timing question, but if you send a datalog of the accel problem we can probably figure that one out.

Ken
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Old Oct 6, 2010 | 11:50 PM
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ok ill do it tomorrow
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Old Oct 10, 2010 | 02:35 PM
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so can someone just give me a 101 on timing ignition. i know that theres different ways. but whats a safe half bridge timing. aaron told me 15 an 20 split. My thing is my car idles at 1600 1700 what would be the best timing cause in the table aaron provided im pull 26 27 degrees of timing. Should i knock that down to about 15-20 an build my timing up from my idle or should i just leave the table aaron provided me.
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