New to E85. Getting a baseline...

[CVD]

Driving home today doing some mid throttle pulls and just rolling into it I was hitting 10.5:1. It's almost like the 550's aren't hacking it, which I suppose is possible, but it's just an 11b.
Just going WOT I'm still getting 13:1 a/f or leaner and duty cycles near 100. When it was really cold this morning I got a duty cycle reading of 185. Is that even possible??

In any case it looks like I need to up the ante to the 780cc injectors. I just don't think the car will start. The idle adjustment on the VPC doesn't seem to be doing shit.

[FattyBoomBatty]

And the VPC isn't lying to your logger about duty cycles?

[CVD]

I dont think so. Duty cycle is duty cycle right? The VPC only lies about airflow as far as I know.

[Kevin 1G Drummer]

Hmm...for some reason I find it very hard to believe you're completely maxing out 550's on an 11b. Sounds to me like something isn't quite right. Maybe something with the VPC is messed up?

[Project2G]

**EDIT** Delete

[Fran05]

anything over 100% IDC means that your injectors are staying wide open. That can cause them to stick/destroy themselves. Anything over 85% IDC is not recommended. Also, 550s are VERY small for e85 even for 10 pounds of boost. Just get some bigger injectors, I would say 1200cc would be ideal for up to 50lbs/min.