archemitis Posted January 11, 2005 Share Posted January 11, 2005 if you seriously think your runing close to 150 hp, what clutch is holding this power? cuz the stock ea81 clutch sure doesnt hold 150 hp. Link to comment Share on other sites More sharing options...
GLCraig Posted January 11, 2005 Share Posted January 11, 2005 If I remember right, most of the guys with built EA81s are using either a ER27 or EA82 Flywheel with a 4wd XT6 clutch kit. Link to comment Share on other sites More sharing options...
BobBrumby Posted January 11, 2005 Share Posted January 11, 2005 i assume these 150hp ea81's are ea81t's? Link to comment Share on other sites More sharing options...
JWX Posted January 11, 2005 Share Posted January 11, 2005 i assume these 150hp ea81's are ea81t's? nope, qman says he is getting 150 NA. Link to comment Share on other sites More sharing options...
northguy Posted January 11, 2005 Share Posted January 11, 2005 if you seriously think your runing close to 150 hp, what clutch is holding this power? cuz the stock ea81 clutch sure doesnt hold 150 hp. That's a problem I probably will never have to encounter. Link to comment Share on other sites More sharing options...
BobBrumby Posted January 11, 2005 Share Posted January 11, 2005 nope, qman says he is getting 150 NA. Webber, cam, zorst, accel, what else would he be running? Link to comment Share on other sites More sharing options...
Myxalplyx Posted January 11, 2005 Share Posted January 11, 2005 nope, qman says he is getting 150 NA. Link to comment Share on other sites More sharing options...
Ratty2Austin Posted January 11, 2005 Share Posted January 11, 2005 I have ridden in Qmans brat with that engine.. it does feel like it when he steps on it.. but if I remember, i think he (and my EJ22 wagon) is using an XT6 clutch setup.... Link to comment Share on other sites More sharing options...
Ross Posted January 11, 2005 Share Posted January 11, 2005 Webber, cam, zorst, accel, what else would he be running? Probably higher compression ratio. Lots of room for improvement there. I would think that if the 150hp is at high enough revs, the std. 9" clutch would hold. You don't need very high torque at 700rpm to make 150hp.... Link to comment Share on other sites More sharing options...
Myxalplyx Posted January 11, 2005 Share Posted January 11, 2005 You don't need very high torque at 700rpm to make 150hp....Actually, you'd need about 1125lb-ft of torque to make 150hp at 700rpm. His car must pull like a train. (Take it easy, I know what you meant). Link to comment Share on other sites More sharing options...
Ross Posted January 12, 2005 Share Posted January 12, 2005 Actually, you'd need about 1125lb-ft of torque to make 150hp at 700rpm. His car must pull like a train. (Take it easy, I know what you meant). Oops! That would be one beast of an engine though! Link to comment Share on other sites More sharing options...
stinky Posted January 12, 2005 Share Posted January 12, 2005 Even at the flywheel that sounds way more powerful that a common subaru nut could pull out of an EA81, sure those aviators get some crazy figures out of them, but that's for an entirely different application and I doubt some of their mods would be suitable ( and certainly not affordable ) for us. My ea81t has 120hp at the wheels, and that's with an intercooler, 10psi boost, and a few other bits and pieces, so I find it hard to believe you'd get 150 out of an na ea81 without sacrificing reliability. Link to comment Share on other sites More sharing options...
Snowman Posted January 12, 2005 Share Posted January 12, 2005 Even at the flywheel that sounds way more powerful that a common subaru nut could pull out of an EA81, sure those aviators get some crazy figures out of them, but that's for an entirely different application and I doubt some of their mods would be suitable ( and certainly not affordable ) for us. My ea81t has 120hp at the wheels, and that's with an intercooler, 10psi boost, and a few other bits and pieces, so I find it hard to believe you'd get 150 out of an na ea81 without sacrificing reliability. I'm not doubting Ken's HP numbers here, but I sure would like to see a write-up of exactly what was done to this engine. That is a BIG increase in power. Link to comment Share on other sites More sharing options...
Ross Posted January 12, 2005 Share Posted January 12, 2005 My ea81t has 120hp at the wheels, and that's with an intercooler, 10psi boost, and a few other bits and pieces, so I find it hard to believe you'd get 150 out of an na ea81 without sacrificing reliability. Your hp figure would be significantly higher if taken off the flywheel, remember.... The ea81 has a very low compression ratio (8.7:1???), so taking it up to 11:1 or so would see some pretty big hp gains. Or lpg could be utilised, then you can run up to aroun 16:1 or so i think Whether the engine would stay together with such a compression ratio is a different story though! Link to comment Share on other sites More sharing options...
Qman Posted January 12, 2005 Share Posted January 12, 2005 Even at the flywheel that sounds way more powerful that a common subaru nut could pull out of an EA81, sure those aviators get some crazy figures out of them, but that's for an entirely different application and I doubt some of their mods would be suitable ( and certainly not affordable ) for us. My ea81t has 120hp at the wheels, and that's with an intercooler, 10psi boost, and a few other bits and pieces, so I find it hard to believe you'd get 150 out of an na ea81 without sacrificing reliability. I am not a common Subaru nut. BTW, I have covered this many times. Whether you believe or not is up to you. Let's just say that a friend of mine owns a 400hp WRX and was very impressed with my Brat. As I have already told many people who have been nice enough to let me know there are non-believers and naysayers. I am doing a readers rides article and you can see it then. Who knows, I might even find a dyno by then to back it up. A little history for the skeptical. I have been around racing, hot rods and high horsepower motors since I was born. There are lots of ways to extract power without losing reliability. Does seem funny though that most believe Wills claims to over 200hp in his wagon but question my numbers. Not really any difference when you think about it. He started with 113-115hp depending on the info you have. I started out with 73hp. Oh well, all have their own opinions as it should be. See ya' Link to comment Share on other sites More sharing options...
MorganM Posted January 12, 2005 Share Posted January 12, 2005 Does seem funny though that most believe Wills claims to over 200hp in his wagon but question my numbers. I don't belive either one untill I see dyno print outs Link to comment Share on other sites More sharing options...
Myxalplyx Posted January 12, 2005 Share Posted January 12, 2005 Does seem funny though that most believe Wills claims to over 200hp in his wagon but question my numbers. Not really any difference when you think about it. He started with 113-115hp depending on the info you have. I started out with 73hp. Oh well, all have their own opinions as it should be. See ya' Hey Qman, I'm not one of those few. I am a skeptic and doubter of a lot of stuff. If a trap speed at a 1/4 mile track with curb weight info was provided, then that's something that's believable. It's just that you see so many people with hp/torque quotes that it's hard to believe anything anymore. I'm nobody important. I've just been pretty vocal on the boards lately even though I've been lurking here for ages. I have a lot of respect for you 'Q' so please don't take my words the wrong way. Will's enthusiasm is addictive but the 85hp gain (from the 115hp stock or so) to the crank seems hard to believe. Remember this post: http://www.ultimatesubaru.org/forum/showthread.php?t=10369&page=1&highlight=dyno That was with a 9.5:1 compression ratio and various mods. To get 200whp would seem to need quite a few mods to get there. The dyno plots are gone but it wasn't much. Maybe a 35hp gain or so. Need to see it posted back up. I'm sure he's probably gotten quite a few more horses since then but 200hp's worth? I dunno! It'll be exciting to see what he comes up with. Sorry if I offended! I actually hope you have 160hp and you are under-guesstimating yourself. Anyways, take care. Link to comment Share on other sites More sharing options...
Qman Posted January 12, 2005 Share Posted January 12, 2005 For the record. I don't get offended over this stuff. I built this motor to aviation spec for the 150hp version. After talking with various engine builders and cam builders and going over the specs they decided I should easily be able to pull these numbers considering that my fuel system is bigger and my exhaust is better. I never stated whp BTW. The one thing I see overlooked here more than anything on mods is that people try to do one mod at a time. However, to get a correct mod you have to do them in a series of upgrades. For example, it does no good to add a bigger cam without a bigger fuel supply. Or stuffing big cams and more fuel without allowing for bigger exhaust to allow it to breathe. One will not work without the others. I don't belive either one untill I see dyno print outs :-\ You believe what your breathing is air don't you? Ever see it? Link to comment Share on other sites More sharing options...
WJM Posted January 12, 2005 Share Posted January 12, 2005 http://www.ultimatesubaru.org/forum/showthread.php?t=28484 Link to comment Share on other sites More sharing options...
WJM Posted January 12, 2005 Share Posted January 12, 2005 BTW: on the dyno, before IC exhaust work and with the 9.5:1 engine on race fuel, i had 141 HP at the crank, 99 at the wheels. when I dyno the RX this sat, we will see what I had the wagon at before its blow up state. and what the RX is doing now. I hope to see 160 WHP. Link to comment Share on other sites More sharing options...
ezapar Posted January 12, 2005 Share Posted January 12, 2005 My ea81t has 120hp at the wheels, and that's with an intercooler, 10psi boost, and a few other bits and pieces, so I find it hard to believe you'd get 150 out of an na ea81 without sacrificing reliability. That Brat would be Ken's daily driver. Very reliable. I'm guessing you've never met Brian the Subaru Guru, he built it along side Ken. The RX that Sean (of RalliTek) built for Rally X was at least 160hp. It beat WRX's in the quarter mile, no shnit. 15lbs of boost. My impreza couldn't keep up with it, and I've beat up ea82ts plenty of times. I find it hard to believe you've only coaxed 120hp out of your motor. Link to comment Share on other sites More sharing options...
Myxalplyx Posted January 12, 2005 Share Posted January 12, 2005 :-\ You believe what your breathing is air don't you? Ever see it? You sound like Morpheus from 'The Matrix'. Link to comment Share on other sites More sharing options...
spanky_pete Posted January 12, 2005 Share Posted January 12, 2005 I for one believe that it's totally possible. I have a 250cu inline six in my Chevy that is making more than 1hp per cubic inch. Lots of people said that was impossible. With a little creativity and a willingness to take risks you can make some crazy things happen with small motors. I'm looking forward to the write up, I'm sure it'll give me some good ideas for my own cars. Link to comment Share on other sites More sharing options...
JWX Posted January 12, 2005 Share Posted January 12, 2005 I think the thing that most people miss about this engines, is the fact that Subaru built them as commuter engine they just wanted good MPGs, good relilabily, and ok performence. if you open up the intake, exaust, add more fuel, and work with the engine a bit most would be amazed at what you can get out of them. Link to comment Share on other sites More sharing options...
archemitis Posted January 12, 2005 Author Share Posted January 12, 2005 heheh, good thread. i dont care what you guys THINK you are runing. i have 150hp as my motor sat in stock form. 2.5 inch exh. ported manifold, big intake. i must have more now. with my 4 speed, there is no clutch options other than stock, or upgraded stock. my spline is too small to run the xt6 stuff. no combo works. so the high hp ea81 guys must be runing 5 speeds? all so secretive about bull****! tell us what you did, and show dyno sheets like myxaplyx! Link to comment Share on other sites More sharing options...
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