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Lm7 wot timing

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Old 12-03-2015, 11:03 PM
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Default Lm7 wot timing

Ok I have another thread open for a lm7 swapped into a ford ranger (2006 lm7/psi standalone harness)but I have since completed the swap and when I first drive it I could tell it was lacking power so I hooked up my scan tool and had code p0327 pop up so I took the manifold off and the front knock sensor hole was full of coolant that had leaked and drained into the hole and so I took both out and replaced both knock sensors and the code has gone away but it is still weak under heavy throttle so I hooked up my scanguage which shows timing and under 1/3 throttle and below timing is anywhere between 20-35* and the more throttle/load I apply the lower the timing goes all the way down to the single digits under wot. What else could be causing that low of timing? I'm going to source a wideband to barrow to see where my afr's are but could the timing even be pulled back that much from the comp for just narrow bands?
Old 12-04-2015, 09:04 PM
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No ideas? I bought some 100k resisters and bypassed the knock sensors and I get the same results and still no code for knock sensors? What else could be causing the timing to be so low?
Old 12-08-2015, 05:29 AM
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Here are stock LM7 timing tables. On mine when i go WOT i am in the .76 to .88
cylinder airmass area. So at wot i would only have 11 degrees of advance on the high octane table. I would be in the single digits on the low octane table.
Attached Thumbnails Lm7 wot timing-5.3-high-octane.png   Lm7 wot timing-lm7-low-octane-table.png  
Old 12-08-2015, 07:57 AM
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Holy conservative timing batman. Looks like a turbo table.

I say pick up a mail order tune.
Old 12-08-2015, 01:11 PM
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Those aren't my timing tables those are a stock lm7 tables. I have 26 degrees of timing at WOT.



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