Actually I really want one of those flex fuel badges too, thanks for the link (

 

I see no flex fuel sensor in your build, they're cheap get one

 

Too lazy, maybe later. I think even before that I'm going to set up table switching so I can switch between 91 and e85 with a button on the dash.

 

My T25 setup will likely see little power gain if I run E85, and I'd be scared for my rods anyway. So, the torque limit will keep me from going much further. Is making the chance of knock nonexsistant worth dropping ~$125 on a fuel pump and converting my car to returned/manifold referenced FPR? It's like I really want to run E85, but don't even know why. Maybe I just want to feel special?

Decisions, decisions...

 

it can see a big power gain becuase you can push both boost and timing to the very limit.

put it this way: my dinky ihi, which is ACTUALLY smaller than your t25, saw 25hp WITHOUT touching timing at all.

and there's no knock.

....there are reasons not to go e85 (mainly availability) but YOUR reason is a terrible one

 

My daily commute passes multiple stations that carry it, so availability isn't really an issue. The fact that the stock rods and five speed's torque limit is reachable with pump gas and the T25 is what has me hesitant. I worded my previous post poorly. There IS power to be gained, I just would have to keep my 225ft-lb torque limit in mind and adjust boost/timing accordingly. So, the huge power gains people get with E85 aren't something I can really take advantage of. Unless i just run more timing/less boost...

 

#NBProblems

 

no knock.....pretty much ever unless you go nuts
faster spool.....
...it actually smells really cool, vs like death

can you tell I really like the stuff? lol

 

This is pretty much my plan. Adjust timing, then see where I'm at, lower boost if needed...

Maximize safe power, make that power safer, spool to full boost faster (because boost may be lower, + more exhaust flow), keep engine cooler, smells purdy... Plus I can fill my tank for $21.

I don't really see any reason not to.

Also, my wally 255 was $60 shipped, so not sure where the $1xx+ price came from.

--

pic related:

 

make sure you don't get carried away with +timing and -boost cause you can spike your cyl pressures that way and still bend rods

 

I was planning to go with the quieter DW200, which would be $99 plus shipping.

It's about that cheap here. $2.09 when I saw it this morning. 87 is $2.29, 93 I bought there was $2.66. So, 27% cheaper to fill up with E85, and my understanding is the fuel economy loss is 10%<X<20%. This of course being solely financial, not including all the benefits for the motor/performance.

 

You want a DW200 with install kit? I ordered one from Bryan but he sent 2, so I was going to return one, but if you want it I can just have you pay him and I'll send it to you

And after numerous experiments, so far I'm convinced that it is not any more expensive than pump whatsoever.

 

Yes, the fuel economy loss here is greater than 10%, but $2.66 is about 30% more than $2.09. I end up breaking about even.

And thanks for the warning. I certainly won't be going crazy with timing, but I was still running the stock timing map that came with my Rev ms3, which is hella conservative.

I plan to run "pauls map" from the much ado about timing thread, which to my understanding, people are running with success on pump gas with my motor, correct?

 

I failed to maths. Updated my post. lol.

I don't start back at my internship for at least another week, so no car parts until I have some caysh flow. Don't hold it on my behalf, but if you forget to go to the post office for the next month or so I may be interested, lol. You've had a(few) wally(s) before right? Are you pleased with how much quieter it is, for ~double the cost of what Mlev paid for his? lol

 

Pauls map is not agressive for e85 lol. Heck, people like Joe would even say it's weak sauce

DW200>Wally for me, because I love quiet.
Of course if you wanna go all BECAUSERACECAR, the Wally HP makes it sound like you're in some 5 second dragster with a Weldon pump lol

 

Absolutely. But it's on average 10* more advanced that where I am now--including at WOT at full boost for me...

I'm burning it and doing some data logs today. Should be fun.

 

Did some data logging with my new timing to look for knock (lol), and threw one into virtual dyno.

I need to smooth out my VE map a bit, but boost holds solid at 10.5psi, and AFR stays around mid 11.

I lifted at 5800rpm because I was a *****, but assuming torque doesn't drop off too much to 6800, I'm looking at just over 250whp, 200wtq which is right what I was hoping for/expecting.

99 Stock motor
GT2554R @ 10.5psi
FIC 775cc injectors
fleabay IC
Rev built MS3 (I have such a mancrush on that guy)
and MOTHERFUCKING CORN BABY

 

Looks great man! How do your data logs look for temps? I've seen a fairly significant drop in overall temps with most cars running E85.

 

I don't have EGT, but MAT was 71F at the end of this pull (I had been out driving... aggressively... for a while), ambient was 68F. CLT was 197 at the end of the pull, with a 195 thermostat in there--but I have a coolant reroute, an aluminum, shrouded, big-***-fanned radiator, and had the heat on just a smidge.

Oh, and I have those kick-*** custom vents made by one of the members (and now vendors?) of this forum.

 

I did the math quite a few times over the 3+ years my WRX ran E85. At the time gas was around $4, and E85 was very slightly more expensive. The amount was very, very small and over the course of a year (20,000 miles of driving). I would guess that now that E85 is under $2 it would be a wash. Either way, it is still the best money spent for butt dyno approval. It smells better and more ALLOFIT.