Hesitation WOT
 

So This year my car does not want to run under WOT. Built 2.0 liter BC 280 cams, ECM Link V2. (I'll try to take a log of my WOT tonight on my way home from class.) Bosch 044 Fuel pump -8 fuel feed, -6 return, aeromotive fuel pressure regulator. 1650 blue maxx injectors. Magnus Intake manifold 3" Gm maf so on and so forth. Just trying to get ideas. I use to run 25 PSI all day long but it starts to hesitate as soon as it hits full boost or shortly after. So i thought ignition issues? So i turn the boost as low as it would go. 12 PSI and same thing still hesitates under WOT. I'm running about 11.0-12.0 A/F at WOT. Any suggestions would help thanks!

Re: Hesitation WOT
 

Did you try new plugs? 12psi is pretty low to have spark blowout though.

Re: Hesitation WOT
 

Yup! First thing i tried. Still the same result! BPR7ES! I have a coil on plug setup too FYI.

Re: Hesitation WOT
 

Fuel issue? old gas? filter?

Re: Hesitation WOT
 

Bad coil pack? Try running stock coil pack and plug wires. Fwiw 11 afr on e85 seems pretty rich. I wouldn't rule out that it is too rich as that will give you issues. Any knock?

Re: Hesitation WOT
 

Post a log!

Re: Hesitation WOT
 

What is a good a/f ratio for e-85 at WOT? I will definitely try my stock coil pack and plugs this weekend hopefully! Also maybe get a WOT log! I will also look into my fuel system..

Re: Hesitation WOT
 

11.8-12.0 is safe IMO