.:E85 Tuned...!:.
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Cruiser
Joined: Jul 2011
Posts: 151
Likes: 1
From: SoCal
In my 2.0, stock compression is 8.8:1... It's not a purpose built track but rather a daily driver. Granted when we build the bottom end we bump up the compression to 9:1 for a daily driver car that we can throw more boost at it, or bump it up to a 10:1 when making it a fully committed track car knowing it'll never see 91 octane...
In all honesty, all someone has to do is fill a tank full in a bike, throw it on the dyno, and tune for optimal AFR's. Once on the dyno we can figure out if we're running out of fuel or what not.
I would love to do it but I'm broke...
Here's my daily driver with 86k on the oddom and my dyno graph...
91octane, e85 overlay
In all honesty, all someone has to do is fill a tank full in a bike, throw it on the dyno, and tune for optimal AFR's. Once on the dyno we can figure out if we're running out of fuel or what not.
I would love to do it but I'm broke...
Here's my daily driver with 86k on the oddom and my dyno graph...
91octane, e85 overlay
Tourer
Joined: Nov 2012
Posts: 398
Likes: 4
From: Lumberton, TX
Heh I knew as soon as you said 2.0, you were driving an EVO. I own a 2011 STi myself but don't have E85 readily accessible.
Fuel economy isn't really an issue for some folks, My car probably gets maybe 30 miles more than my bike per tank. I could care less about fuel economy myself.
I'm not sure how harley motors hold up to adding power, I know my STi needs a built engine to push 400+hp safely. But I would think there shouldn't be much upgrading for the power increase .. just takes someone to try it heh.
Fuel economy isn't really an issue for some folks, My car probably gets maybe 30 miles more than my bike per tank. I could care less about fuel economy myself.
I'm not sure how harley motors hold up to adding power, I know my STi needs a built engine to push 400+hp safely. But I would think there shouldn't be much upgrading for the power increase .. just takes someone to try it heh.
Last edited by Danielc409; Dec 23, 2012 at 03:40 PM.
Thread Starter
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Cruiser
Joined: Jul 2011
Posts: 151
Likes: 1
From: SoCal
Yeah, I understand for you guys to make power you need upgrade your glass rods and pistons. We on he other hand can handle 500hp/500tq on all stock internals...
Using E85 is just something to think out of the box about...
Using E85 is just something to think out of the box about...
Road Master
Joined: May 2012
Posts: 865
Likes: 159
From: Vermont
i dont recall you mentioning a boosted motor in your earlier posts. That changes everything!!! A turbo or supercharged motor will be able to run enough additional boost on e85 to make a decent amount of additional power. But i still stand by my earlier comments when it comes to a normally aspirated motor.
I agree with some of the other post, you would first have to make E-85 more plentiful, I can only think of 2 stations in my area that sell it, and the price difference is only about 10%, so it seems not worth the effort. Tell me if I'm missing something.
Extreme HDF Member
Joined: Dec 2007
Posts: 13,402
Likes: 941
From: Illinois
Hp in the motor is from BTU's from the fuel. Alcohol has less BTU's so an engine to make more hp from it must have substantially larger injectors than those for gasoline only.
High content alcohol fuel washes oil off of the cylinder walls which results in a much shorter engine life. Alcohol is very corrosive to most metals also.
Any engine is capable of making more hp with gasoline than alcohol with the same degree of tune.
Alcohol is a pathetic source of power in an internal combustion engine.
High content alcohol fuel washes oil off of the cylinder walls which results in a much shorter engine life. Alcohol is very corrosive to most metals also.
Any engine is capable of making more hp with gasoline than alcohol with the same degree of tune.
Alcohol is a pathetic source of power in an internal combustion engine.
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Nov 27, 2006 10:31 AM
