I get 122mpg on c16 and make 850whp on my Cooper S too. It says it on the internet, so it's true now.
So many places to start... In the interest of civility, I'll skip my usual sarcasm and give you the following advice. Stop. Just stop. It's becoming patently obvious that you either have no idea what you're talking about or you're a master troll. Anyone with an IQ higher than a bag of hammers and who's been around these cars for longer than 10 minutes is fully aware that a 500+whp Subaru is going to be less than "reliable" as a DD. You coming in here and telling some well established members who know more than you do that they "should really do some research" is funny, stupid and arrogant all in one sentence. You seem to have some very conflicting goals for your car and how you're going to achieve them. Also, if your car has the stock 5MT then you'll need to add a transmission in there because it'll last about 2 seconds under the power levels you're talking about. Also, there is no way that you're going to be putting down those sorts of power numbers on E85 and getting mid 30s for mileage. It's not physically possible.
if you read through my list of mods, which apparently several people don't read here, you would have seen the jdm 6 speed swap. So that takes care of the 5mt issue. Have you ever been around a destroked engine? They take less fuel when running under no-low boost conditions because you have decreased the stroke in the engine, meaning the piston moves less distance every stroke, which in turn means it takes in less fuel and air into the cylinder, so therefore would take less fuel to run. You can think what you want, but i honestly just joined this forum to ask a member about some suspension specs on his car, and I am glad that the Iowa subaru club is actually interested in helping people instead of being like a local NASIOC that just flames everyone anytime they say something. I have done a fair amount of research and plan to do a lot more when the time comes to start ordering parts and building the car, but that is a ways off so this is just a general direction for now.
I figured i would make it bigger, because apparently people couldn't see the closed deck, or the 6 speed in the smaller picture.
I hope all your mods go as planned, I have similar high power ddish goals in mind, minus the staying stock location past say 4-450. (I also have a 06 wrx wagon with similar hp that's why I asked what mods and where it was dyno'd)
Terribly sorry, I missed your vaporware list. I'll try to catch that next time. I'm also sorry we're not all patting you on the back and telling you how good your ideas are and that you know what you are talking about. The reason for that is because they aren't and you don't. If you'll notice, a number of us have been here since well before you hit puberty and have some significant experience with these cars. Your posts are something that we have seen repeated ad nauseum over the years, and these threads follow the same formula each time. I would like to hear you explain how you're going to make more than twice the factory horsepower with a fuel that has 25% less economy and a gearset that is comparably shorter than most (even with "longer" gearing) and get mileage in the mid 30s.
I did not state that I was going to, I said it is currently being done, and it is actually about 30%more fuel that is required not 25% but you'r close. I have done my fair share of work on subarus, I built an engine for a friend of mine's bugeye, have had my engine out, and done two tranny swaps for people, and that is just the list of subaru stuff i have done, I also built a V8 this spring, so i have had my fair shair of working on cars.
So now your going to play that game. I drove a BRZ all through winter. Stop with this elitist shenanigans. You joined to get parts....fine...you don't want to hear the constructive criticism....fine. Now your just being childish and rude. I have a sneaking suspicion that most people on here agree, but you should probably cease and desist before this gets out of control. Deal with the criticism or don't.
I was fine with it when it was constructive criticism and opinions on my plans, but then people started telling me i had no idea what i was talking about, that is what i feel should not happen on a forum that is based around helping others and getting together with other car enthusiasts. Several members said i had no idea what I was talking about, even though i have worked on my fair share of cars, including subarus. Its just funny to see how many members are ignorant themselves but continue to tell people they have no idea what they are talking about. That is my opinion.
Welp, good luck with your build. Your aware that if your idea/theory was practical or easily achieved that all cars would be on E85 and able to meet currunt regulations regarding mileage. Including trucks. To my limited knowledge it sounds like your build is going to be unpleasant. You cannot add loads of power and expect 30+ mpgs no matter how it's done. Even with diesel. But hey, that's my, and a lot of our members' 0.02. Take what you will from it. Your time here is how you make it. Nearly everyone here has a modded car. Myself included. With much less power and weight and still not breaking 36mpg highway. All we are telling you is to cool your jets, Carefully plan your build and deal with it. Kudos for being calm-ish, but man, listen to some of the advice offered here. Or better yet ask one of your great tuners if it's possible before slamming us with YOUR propaganda and bragging about your skills.
I did not say that with my build you can get 30mpg. I said with someone i knows build he is. I'm not shooting for high mpg I'm shooting for high smiles per gallon. And i did add a few small things to my last that were mentioned on here that i had not taken into account, i just didn't appreciate how people made their point on this forum.
Funny, we didn't really appreciate you coming in here and treating us like a bunch of know nothings and that you're God's gift to the boxer motor. Since my last warning might have been missed, let me put it a little more plainly. Instead of fellating yourself as to how much you know about these cars, take some time to learn about your audience here and who you're talking to. Perhaps spend some time listening and getting to know people before you start telling them what they should and shouldn't do. Take this approach, and you may find your stay here more pleasant. Ignore it, and it'll be as short and unpleasant as a midget falling into a portajohn.
A little word of advice op, dont bother trying to get everyone on your side here. This is a internet car forum, not everyone is going to agree or believe what you say. Take the criticism and move on. You're just digging yourself deeper by trying to prove that you're right. Anywho, good luck with the build and your stay here.
Wow, you're basically a master mechanic then! I bow to thee, oh great one. Stay in Iowa, we're fine without you.
Wow. I have no idea even how to respond here. 35mpg on a 500hp car on e85? Yeah, it didn't happen. You can calibrate your dummy mpg meter all you want, my guess is, he didn't calibrate for injector scaling. A 1000cc injector at the same duty cycle as a stock injector is using more than 2x the fuel. 35mpg reading that's been calibrated for e85, divided by 2, would yield 17mpg. And THAT is on par with pretty much every 500hp Subaru I've ever seen or owned for a conservative freeway cruise. I regularly got 16mpg on the freeway with my old car. It has nothing to do with stroke, and nothing to do with if the turbo is spinning or not. The flat 4, with the headwork you're likely to need, is going to have fuel needs that will be around 14-17mpg during freeway use. Fuel consumption is based on readings from the MAF and readings from the O2 sensor. If the maf sees X volume of air, it will apply Y volume of fuel. You can tune that all you want, but in the end, if the stroke is drawing 1.9L to 2.2L, you're going to see around the same volumetric consumption of air and fuel with a little bit of erroneous value drift based on the slightly smaller or larger volumes. If you destroked a 2.0L to 1.9L, you're talking about a 5% decrease in overall volume. Even if that translated to a 5% gain in MPG due to less volume, it would account for approximately 1 mpg +/-.
This thread is going exactly as I expected. Noob shows up, explains that he is the Lord's holy gift to humanity because his friends did some stuff once, claims outrageous results that are generally regarded as physically impossible, ignores the fact that some of the people talking to him have been working and wrenching on these cars since before he was in the double digit age range, claims to be an expert at everything ever, then gets butthurt as **** when people who know better explain that he is wrong. Have fun, you ignoramus.
