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Mpi running rough after heads installed

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Old 07-07-2015 | 11:04 AM
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So when I put a timing light on it what should it be set at?
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Old 07-07-2015 | 01:07 PM
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https://youtu.be/RCUoxYg3hHk
https://youtu.be/JCfLhBZ4V3M
here are two videos I took. What do you think?


Sorry the links should be fixed

Last edited by inlinepwr; 07-07-2015 at 05:34 PM.
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Old 07-07-2015 | 03:37 PM
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Originally Posted by inlinepwr
https://youtu.be/D5M35tZlqzU
https://youtu.be/ZscLKWt-t70
here are two videos I took. What do you think?
vids marked as private, can not view
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Old 07-07-2015 | 05:36 PM
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The links should be fixed. Thanks for looking.
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Old 07-07-2015 | 06:24 PM
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I just did a compression test and all cylinders were between 200 and 205 (cranking till they stop building psi). Not sure where to go from here.
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Old 07-07-2015 | 06:27 PM
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That's a lot of compression for normal fuel !
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Old 07-07-2015 | 06:46 PM
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Unless my Guage is broken that's what I got. The first cimpression stroke it went to somewhere around 150 and continued to climb from there.
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Old 07-07-2015 | 06:47 PM
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sounds like it has a dead hole, trying to video and drive in choppy chit.......... well priceless............ well done........... don't you have to put the ecm in base timing mode like a mefi and set it to 8* BTDC lock it down and the computer does the rest ??


I've not worked on a 555 controller
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Old 07-07-2015 | 06:53 PM
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Sorry double post

Last edited by inlinepwr; 07-07-2015 at 06:55 PM.
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Old 07-07-2015 | 06:55 PM
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Okay, again. Do not run this thing without doing proper timing procedure.

I don't know what it is on a 2011...sorry.

What computer and distributor do you have ?
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