Jerry came out to Minneapolis for a dyno day at Maperformance. It was fun. First pull I had 366 rwhp. Jerry felt it was a little lean so I ended with 350hp 340tq. 6 pulls and I lost no power so ic system is working well.

 

Looks good, I made 348 when my car was a V6 in 2009 ,what was the afr reading? jim

 

I think low 12s hi 11s.
Nice and steady, no lean out on top after a few adjustments to the tune.

 

Good numbers , lots of Fun there
what injectors and fuel pump ?

 

Walbro 255 pump, 6an fuel lines, adjustable fuel regulator set to 60psi , boost monkey fuel rail, and 2006 e55 injectors. I want to go stacked pulleys and e85 so I'm slowly building up the fuel system.

 

Nice already , thanks for the info :-).

 

Mine ran faster at 12.2 AFR but made more power on the rollers at 11.5 AFR. Now I have to wait for cool weather to retest. Still on stock injectors and fuel rail, only upgraded the fuel pump so far. Have the AFPR setup sitting here waiting.

 

You accounting for the additional 35% fuel volume you need with E85 to at least match kW output?
Following someone else's success, or your own engineering?

 

So far I have moved an adjustable fuel regulator up to the front and ran -6an (3/8") fuel supply/return lines. I also have a modded rail with a larger inlet fitting welded on it. Slightly larger e55 injectors also. Now I'm seeing many affordable flex fuel kits available, trying to figure out a strategy for that.

Edit: just saw I'm repeating info, lol. I'm working out a few bugs ( wandering pressure) before moving along.

 

Well I changed to a 69mm pulley I found on Ebay. So I'm running 181/69mm pulley combo now. Fuel pressure has been increased to 70psi. AFRs at WOT look perfect and my fuel trims are staying around zero. Strange that with the increased pressure the ECU is not pulling a ton of fuel in closed loop. Going to put some miles on and watch the fuel trims before bringing it back to Maperformance for another Dyno pull.