I knew these threads pop up a bunch but I've never seen any on e85 to give me an estimate and since the closest dyno to me is about 4hrs away I've been using VirtualDyno to help tune.

I'm just curious what kind of power I could potentially make on my current setup. I know my stock s4 intake is going to be a limiting factor eventually but I do have a full s5 setup laying around for when it warms up.

Currently running:
Stock S4 N/A block
Atkins sleeves
Full RB street exhaust
MS3x
TB mod
Quest dual speed efan setup
3g Taurus 130 amp alt
E85 with B100 premix

I think that's about it. Thanks for any help.

 

160-170whp

and what was your reasoning for using E85? that's a hell of a hassle for virtually 0 benefit, hopefully you weren't expecting something like 250..

 

I eventually plan on an NA-T build but mainly because it's cheap and accessible here, almost $1 cheaper, I get the same mileage I was getting on regular, and that way when I finally get a comfortable tune on I won't have to worry about my off boost map when I go turbo.

I also wasn't expecting big numbers while I'm NA on stock intake and ports, was just curious. I'm hoping I've got enough injector for NA for now. I'm running stock 460's in primaries and 500's in secondaries but I'm running 60psi base fuel pressure so they should technically be flowing 540/587.

 

RE, just out of curiosity, what would you say the limiting factor would be to break that 160-170whp number? From what I've learned I'd assume the stock ports, correct? Oh, and I forgot to mention I do have the Jacob's Rotary ignition box, I don't think that would affect hp numbers though, I know it sure helps on mileage.