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Do you guys ever top off with e85

Makowski17

New member
Location
Wi
Title kinda sais it all. Looking to eliminate some knock and I was wondering if anyone ever adds a gallon or 2 of e85 on a full tank?
 

Makowski17

New member
Location
Wi
Why do you have knock on pump gas? Instead of slapping a band aid on it, get to the root cause.
And I do agree with you for sure. I was looking through my datalogs to see if its fuel spark or air... so I got an intercooler yesterday, gunna regap the plugs, and then maybe its fuel so I'm gunna boost octane.. if it doesn't go away, then I can start assessing each factor more closely and specific. But basically I am trying to get the root cause. Raising octane isn't a bandaid if gas isnt of quality
 

greens

Ready to race!
I put two gallons of E85 in before filling the rest with 93 each time.

Still on the stock tune but noticed how much it helped with timing not being cut and a much smoother idle so have continued using it.
 
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