HARLEY: Tuning '17 FXSE 117" with SESTP

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#11

09-05-2018, 11:18 AM

donk_316

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Bob. You are my tuning hero. Literally the only guy who will talk to me! Haha

Thanks man. The rear cylinder is seeing slight timing retard but only at WOT. It hit 2.5 degrees once other wise it was 0.5-1.5
The front is 0 all the way.

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#12

09-06-2018, 05:25 AM

Slingshot383

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If the timing curves are the same in both cylinders, then that should tell you that some more fuel is needed at those spots where the timing is being trimmed.

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#13

09-06-2018, 11:06 AM

FLTRI17

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Quote:

Originally Posted by Slingshot383

If the timing curves are the same in both cylinders, then that should tell you that some more fuel is needed at those spots where the timing is being trimmed.

You want to be careful making that determination simply because it takes measurement to know whether ping is caused by too much timing OR not enough fuel.
Get the fueling close then the timing can be evaluated but never add fuel just for knock retard events unless the engine is starving and running crappy.
Bob

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#14

09-06-2018, 03:59 PM

donk_316

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So i changed my displacement to 120cid based off of the software recommendations to increase displacement since i was maxing 1-2 cells out. I loaded the new map and then did an autotune run.
zero knock or knock retard. Bike runs like nothing i have ridden before... crazy.
Ill do one more AT and then i think im 100% happy with it... until the MVA heads this winter