Come on, its been proven already. E85 makes more power than meth/water. There has been more than one comparison on this over at the Evolutionm forums. Ask Mike at AWD, he switched from RACE GAS to E85. That should tell you something right there.

Btw Boosted, come on man, you ran out of injector so you couldn't max our your E85 setup. That's not even a fair comparison. I concur on your other points of fuel economy (~30% worse) and the investment needed though its not that much more investment really, An extra fuel pump and 2000cc injectors. But consistency? How does E85 give bad consistency?

 

its too bad our gas tanks are so small, having an extra 2-5 gal capacity would be a big help with E85

 

^^^Have you ran E85? Then you should be able to answer those questions.

I'd fill up one day, and my AFR's would be in check, fill up 2 days later (yes, 2 days later to fill up again) and they'd be pig rich and I'd have to adjust accordingly. Granted it wasn't the same station, but still. You shouldn't have to go to just one station.

As far as an extra pump and 2000cc injectors. That's a $1000 investment (at least). For what? BTW, I ran Weldon's $1300 electric fuel pump, and later switched to a mechanical and (8) 1600cc injectors. I would still throw all of that in the trash in lieu of a properly setup water/meth system. Unless I was just going to race fuel.

I think I've proven that you can make just as much power on a water/meth kit, and actually have driven to the track and proven it's reliability (40-50 passes). This is an S2k forum, not EVO.

 

For those running e85 for their s2k, how much would you say you eat up per gallon? I've heard horror stories about other cars on e85 having to fill up littlerally everytime they do just a little commute and back to their house. Is it this bad with the s2k too?

 

I run around with whats in my tank and then keep a 5 gallon can in the trunk. Never had an issue of getting low on gas that way. I drove from KC to Omaha using around 15 gallons of gas while beating on it most of the trip. Thats about a 200 mile trip and around 13mpg with cruising and a lot of highway pulls. Not bad at all IMO especially with the cost per mile being not too much worse than 91 octane.

I have my 91 octane tune, but with E85 getting so common where I'm from, I don't think I'll ever switch to 91 like I originally thought.

 

Yeah, I'm not getting more than 200/tank at this point anyway and I'm not getting on it that often, so I'm not worried.

 

I run e85 on the Evo, yes. And again, you are right, this isn't the EVO forums. I mean no disrespect whatsoever man. I love s2000s. So much so that I plan on keeping mine forever.

However mileage isn't all that bad on e85. For reference, avg I got on a full tank 93 octane on the EVO (tuned) was ~260 miles a tank - mileage was worse bone stock. On e85 I got ~200 so its pretty good. I get ~240 miles on the s2000 if I'm a good boy so I figure ~180 miles a tank on e85. I do mostly highway driving so some of you with heavy feet would have say 150 miles a tank.

 

I change my oil every 3k miles. This seems to be a good mileage before the oil starts to really degrade. I notice if I let it go too much longer that it will start to smell like more fuel contamination and some usage starts to happen. 3k is good

 

The only time you are spraying is when you hit the designated boost amount to trigger it, this will depend on your personal set up/needs. You can daily drive a high hp/meth set up and if you never get your foot in it ...or reach that level of boost to where it triggers, you will never use it unlike something you pump in your fuel tank. You cant beat the efficiency and performance of pump/meth. You would likely be able to change your oil every 3k as I am, considering your use would be much the same, your hp being at 550 isn't going to matter.

 

On the aem progressive controller it would start to come on when my wastegate cracked, ~ 8-10lbs.

Then ramp up to full boost.

I used teh 550cc single nozzle, and we even drilled it out a tiny, tiny bit b/c I saw a small voltage jump @ 650whp.

The timing wasn't aggressive, we were letting the boost make power, not timing. It was still on stock motor/stock compression.

We stopped once we hit 650whp to re-evaluate the car/logs/etc. We turned all the fans off.

Let the car cool off, drilled the nozzle, fired it back up, made a pull.

Everything looked good, no knock. Made another pull, made power, motor came down to idle and it sounded "off" to me. Saw some smoke from the catch can, knew it was over. Still made 615whp on 27lbs, but with less power and more boost, and the boost came on real lazy.

Realized we forgot to turn the fans back on, so basically we made 27lbs of boost on a non-intercooled motor, so as you can imagine, the methonal couln't pull the heat out, and down she went. I beleive had we not forgot to turn the fans back on, it will still be running.

I could have driven it like that, but I didn't know the extent of the damage, and was hoping new pistons would solve the issue, I wasn't as lucky, but thats part of the game. Play with fire, sometimes you get burnt.

Live and learn.