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Old 12-05-2010, 11:34 AM   #2376
crashtke
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Latest in E85 set up. This one is for a Legacy GT. Pretty impressed that a large Fuel Lab Prodigy pump fit in the tank as it does. I think it will work out nice.











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Old 12-05-2010, 11:45 AM   #2377
ogboot
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closest e85 is over 100 miles for me so it's not feasible right now, I started blowing up my local fuel distributors to get somebody to set up a pump. One of our major universities has a facillity that is ramping up production this year too so hopefully soon!
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Old 01-04-2011, 09:48 PM   #2378
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Hey guys just filled up at 1 of 2 e85 stations near me (Norfolk/Va Beach area). Logging on the way home and I notice I am now about 10% leaner than on the trip there. Possible that the formulation was switched between my last fill up and now? Right in the dead of winter?
Anyway assuming that is the case a quick injector scale should fix me up? Lower it by about 10%? Thanks.
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Old 01-05-2011, 02:53 AM   #2379
bcheck555
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Don't think I've seen this posted before...e85 Fuel Checker.

https://secure.buschurracing.com/cat...cd36179f05f148
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Old 01-11-2011, 11:16 AM   #2380
Qbanz
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Well I finally took the plunge and got half a tank of e85... so far the car is running alot smoother... just runnin low boost (14psi). Lets see what happens...
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Old 01-14-2011, 11:09 PM   #2381
P4radigm
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Has anyone had success in pestering a local station to carry ethanol? I see all these FFVs driving around yet there's not a station carrying ethanol for at least 2 hours (probably farther).
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Old 01-27-2011, 09:48 PM   #2382
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I found a local company to sell me a 55 gallon drum to store E85. They offer plastic heavy duty drums and steel drums. The steel drum are coated with anti rust and I'm curious if there's any info I should know when storing E85. This is a prestiges Co. And asked i should look into any other safety requirements needed that they can apply to the drum so my fluid isn't contaminated. And stored safely. Should I go with a plastic one instead. They offer different internal lining for different fluids contained such as the anti rust coating they have new ones and fully refurbished containers. Any info would be appreciated, sorry if I sound redundant.
I have a truck to load and unload.
I'm going to purchase a air compressor pump for quick and easy fillup at home. and a dolly for EZ movement. Estimated cost. 55 GL gas price in pamona,ca which is one of three in all of so cal is $3.00 a GL. =$165.00

Last edited by Red_Wrx; 01-27-2011 at 09:55 PM.
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Old 01-30-2011, 07:41 PM   #2383
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Rather than look through 200+ pages for the answer ill just ask.

Is it normal to see a bunch of tar or black gummy stuff on the bottoms of the injectors after running e85 for about 10k miles?
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Old 01-30-2011, 08:51 PM   #2384
crashtke
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Some people seem to have that issue, I never did after 30-40k miles on mine. Maybe it depends on the quality of the o-ring used.
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Old 01-30-2011, 09:08 PM   #2385
john 1badSTI
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Or it could possibly be the grade of fuel hose used in the system,if its a cheaper brand it could be deteriorating some.Also it could be some contaminates in the fuel suppliers system.I am like crashtke I have never seen this black gunk buildup yet,as least not personally but have on the boards.
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Old 01-30-2011, 09:22 PM   #2386
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I've got it. I always fuel up at kroger, plano, tx.

It's nasty.. much like tar.

Do you guys change anything to run e85 other than injectors and fuel pump?
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Old 02-02-2011, 12:38 PM   #2387
bcblues
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And a tune.

Quote:
Originally Posted by S2O4 View Post
I've got it. I always fuel up at kroger, plano, tx.

It's nasty.. much like tar.

Do you guys change anything to run e85 other than injectors and fuel pump?
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Old 02-23-2011, 11:49 AM   #2388
Jasonzemos
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Running E85!

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Quote:
Originally Posted by hotrod View Post
Yes I had a half a tank of E85 sit for almost a year to the day when I was doing my last upgrade on the car (completely redo the fuel system, new turbo setup etc.). It was a spare time project so I was in no hurry to get it done. Car fired up and ran perfectly first time I cranked it, drove it around the block a couple times to check for leaks then went and topped of the tank with fresh fuel. Never had any fuel related issues, car ran like a top from the git go.

I would not worry much about it unless the fuel tank has been open (gas cap off) where it could absorb humidity. In a sealed fuel system it should be no issue at all.


Larry
Just for the record: car sat from 11/2009 to 2/2011 with half a tank. Topped it off and did a few cranks without fuel, then it fired up on the first crank with fuel. Good stuff...
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Old 02-27-2011, 10:21 PM   #2389
hotrod
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Quote:
I'm having issues smogging my 99 2.5rs, I've been told that ethanol (E85) will solve my issue. At the moment, the car has a high level of hydrocarbons at idle. When it gets up to rpm, it's fine. I don't believe it was running too rich but will ethanol lower the hydrocarbon emissions? If so, how much should I dilute with? I bought 2 gal at a local gas station, don't know exactly how much to put in the tank. I'm going to try to put it on the sniffer tomorrow to get it to pass..
Start off by adding 2-3 gallons of E85 to a full tank, make sure the car is well warmed up, even new cars will fail when the engine is not up to full temp.

If that much E85 does not bring you into passing range more will not help unless you are very very close to passing.

It will clean up combustion some but there is a limit to how much it can do.

I would also put new spark plugs in and gap them at the middle of the recommended spark gap range. The new plugs will improve (reduce) misfires which just kill your low speed emissions for hydrocarbons.

Larry
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Old 02-28-2011, 09:05 PM   #2390
ArkansasDave
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I'm getting ready to build a 2.5l hybrid with a gt3076r. I'm trying to decide if e85 is really gonna be worth it. What are you guys getting for mpg's with a similar type setup? (400whp+ area?)
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Old 03-08-2011, 11:52 PM   #2391
wv06sti
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ok you guys are extremly technical so please forgive me if I seem "dumb" to the subject. but there's a lot of info on here to read through. My question is I noticed you reference a lot back to the wrx. With that being said what i could conclude from most of this is you need at the very least injectors, pump, and tune to run e85.

Would the stock 06 sti injectors be sufficient IE only need pump and tune? basically id want to run e85 for cheaper commuting costs and wouldn't make sense to me to dump lots of money in parts to just save a little at the pump.
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Old 03-14-2011, 10:06 PM   #2392
mr_durdan
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Quote:
Originally Posted by wv06sti View Post
Would the stock 06 sti injectors be sufficient IE only need pump and tune? basically id want to run e85 for cheaper commuting costs and wouldn't make sense to me to dump lots of money in parts to just save a little at the pump.
Do you have a way to check your Injector Duty Cycles? The E85 will add roughly 30 percent to them which may max them out.
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Old 03-16-2011, 11:31 PM   #2393
jmlaser
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Anyone ever mix E85 and C16/Q16 50/50 for track use?

dont give me the why why why

just tell me has anyone tried and results please

thanks
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Old 03-17-2011, 02:38 AM   #2394
sti4rs
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Quote:
Originally Posted by jmlaser View Post
Anyone ever mix E85 and C16/Q16 50/50 for track use?

dont give me the why why why

just tell me has anyone tried and results please

thanks
I mix pure ethanol with C16 - works great! not sure about e85 with c16/q16... but I don't see any reason why it wouldn't work for you.

MSG me know if you want more details on what I do and how I do it.
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Old 03-18-2011, 04:25 PM   #2395
Frank A
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Quote:
Originally Posted by S2O4 View Post
Rather than look through 200+ pages for the answer ill just ask.

Is it normal to see a bunch of tar or black gummy stuff on the bottoms of the injectors after running e85 for about 10k miles?
Can't find it now, but a faq on one of the pump vendor's websites said that this is normal with running E85 and comes from something in the ethanol. To remove it, just run a tank or two of 93.

Frank
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Old 03-21-2011, 01:15 PM   #2396
bcblues
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A lot of Evo's are seeing the "black tar". Mine were fine last time I pulled them. I agree, it is probably either o-ring or some other rubber compound in the fuel system.
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Old 03-24-2011, 01:40 PM   #2397
svynx
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Wow. Quite the read. Here's my setup goal right now before I ask my question.
2002 wrx
td04-19t
820cc injectors
planning on maps for both 100% 93octane and 100% E85

Question: I've seen references to E85 eating the stock fuel systems (mainly the rubber). I have also seen many references to the exact opposite. For those of you who have been running E85 for a good amount of time, what have you found?
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Old 03-24-2011, 01:50 PM   #2398
RP31
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I ran E85 for 80,000 miles AND have recently removed my engine and fuel lines (because the oil pickup broke off and I decided to replace the engine), and I can tell you that I saw no ill effects from that much E85. I have also run Supra fuel pumps for 80K, and changed the first one out at 60K miles of E85 use... It still looked fine, as did the lines in the fuel tank.
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Old 03-24-2011, 01:51 PM   #2399
Frank A
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Quote:
Originally Posted by hotrod View Post
The OEM fuel line is big enough for at least 600 hp.

Eaton has a chart on fluid line sizing for their Aeroquip lines. It shows that you only need the big lines on low pressure systems or systems running under some vacuum. On EFI where fuel line pressure is 43+ psi you can run a significantly smaller dia than on low pressure carburated systems.

The chart is intended for motor oil or hydraulic oil but gasoline has much lower viscosity and flow losses than oil.

See page 406 this doc.
http://www.hydraulicseaton.com.cn/gb...16_394-433.PDF

Max flow for a walbro 342 is 255 l/hr or 67.4 gal per hour = 437.9 lbs / hr or about 700 hp on gasoline, or 560 hp on E85.

The OEM hard line is 8mm which is basically 5/16 inch ID line, which at the 15 ft/sec flow rate approx gives you 13 gal/min. or 780 gallons per hour.
That is WAAAYYY more fuel than you need for 600 hp.


Larry
This is great information, particularly the hard line size which I had elsewhere heard quoted as being only 7 mm. There is one problem here though- I recently found that the viscosity of E85 is much closer to water than regular gasoline. This is because the alcohols used in the blend have viscosities that are greater than that of water by 20-50%. So for example, water at room temperature is around 1 cp, pump gas is around 0.45, but straight ethanol is around 1.2 cp. With E85 having a viscosity roughly twice that of gasoline, I don't think we can assume the hard line is way oversized.

Since this 3-year old post is the only one that came up when I searched for "viscosity", I apologize if the limits of the factory hard line have already been proven elsewhere in the thread.

I do plan on testing this on my '08 sti in the coming weeks, with hope of challenging the lines out to at least 480 whp.

Frank
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Old 03-28-2011, 05:06 AM   #2400
Carlos.k
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Nice..... Does some type of lubricant need to be used for pump longevity with higher concentrations of the fuel, doesif the fuel already has the lubricants, or does it not need them like many alc injection systems?
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