So once the warm weather hits I will likely be doing e-85. I am just wondering how I would get to my tuner, he (according to google) does not have any stations near him. Should I just pile two 5 gallon jugs in the back of the car? Or can i somehow put a full tank of e85 and drive it up there (with a set of 1000cc's)? Just trying to see how this will work out.

-Driveable on a pump gas tune
-Do i need to replace ALL of my fuel lines?
-Should i be worried about the corrosiveness of e85?
- Is there a way to tune on 2 boost settings? (autox is limited to stock boost, and id like to run sub 30psi on the street)
- Any other useful input from e85 users would be great.

 

Do a little research first, but to answer a few of your questions:
1. No, you need to bring the corn with you, keep your 93 as low as possible for when you arrive at the tuners shop.
2. and 3. don't worry about corrosiveness or your fuel lines
4. Tephra mod allows the 8/9s to do map switching, so you can have two maps (93 and e85)
5. You will love the torque you get with e85!!

 

AMS told me to bring at least 5 gallons with me. Just make sure you're low on gas when you get to your tuner and he will siphon the remaining gas from your tank. You can also do 2 maps - like an E-85 map and a 93 or 91 map.

As far as boost goes, I have the TruBoost. You can have an A setting and a B setting, which you can change while driving. So you can switch from 29psi to stock in 2 seconds.

As far as I know, no need to worry about corrosion.

Off topic, but just an FYI - 1000cc is probably the minimum you want for E-85 depending on your mods. You should look into at least 1200cc and a Walbro 255 or even double pumper, again depending on your mods.

Good Luck!

 

The car is a stock Evo IX
Perrin inlet to stock airbox
tbe w/cat (needed for the class i race in)
lower intercooler pipe
boost controller.. and thats it.
Car made 337/338 on 93 oct @ 23 psi.



I would like to make 37x/37x on say 29psi on e85 and 34x/34x on 93.
I dont mind making a mark on my boost controller for what stock is vs my high boost, i just was unsure after being tuned for 29 psi if you can just turn it down to 20 and the tune still be valid.

I need to contact my tuner, I brought up the idea of the TephraMod and he didnt like it becuase he said something about having shop comeback becuase of a bad file??? I still need to contact him about this but I would need to gather the info before wasting his time. Thanks everyone for your help thus far!

 

dont worry about lines 1000cc as stated is like min you can use and might be a stretch but then again sounds like your not demanding alot of psi. as stated might wanna look into 1450cc those seem to be the perfect fit. Also need to get a double pumper. You should beable to get away with using the new dw300 fuel pump people been talking about in your case as your not demanding much and its e85 capable fuel pump. As stated earlier you can do the two boost settings

 

I think 1 walbro is good for around 400hp. So you might not need a double pumper. And since you will be under or around 400hp I think 1000cc should be fine.

and to answer your questions

no, you can not fill up with e85 and drive it to the tuner.
no fuel lines need to be replaced
I have never herd of e85 corroding anything in an evo yet and people have ran it for a few years now.
you can purchase a 3port boost control solenoid so you can set the boost through the ECU. And yes, you can set 2 maps for e85 high and low boost, e85 and 93/92/91 tune. etc etc
Purchase a map switch from buschur so you can switch maps on the fly

One thing you should know, e85 is addicting. I had a 93 tune and e85 so I could switch every once in a while but I cant stop filling up with e85 lol. The power is amazing and feels awesome.
My car seems to run better on e85. Its cheaper then 91 octane and has much more potential. Only problem is, it requires around 30% more fuel then regular 93. So your mileage will go down a lot.

good luck with the tune

 

1450cc injectors and a double pumper is overkill on a stock turbo unless he plans on upgrading to a larger frame turbo. I had no trouble with fuel delivery with a single walbro and 1000cc injectors on stock turbo with bolt ons making 414whp/404wtq on a dynojet.

 

hmm if you read the second part of my message i comment he could get away with using the new dw300 once its released and 1000cc should be good for what he wants

 

why wait till summer?
run e85 all year long and you will never go back...

 

Have your tuner do a Tephra V7 flash with dual maps and tune it for both 93 and E85 so that you dont have to worry about runing out of fuel and it you arent around any stations you dont have to worry either.

Dont worry about corrosiveness

No you dont need to do fuel lines.

as said before 1000cc injectors are a minumum, just get 1200's.

Double pumper is a good idea and possibly a FPR.

New plugs when you tune.

Besides that you dont need anything else besides a $hit eating grin on your face with the new found POWA!!!

 

Ill be using the stock turbo for a long long time. I will never exceed 30 psi. Im looking to wait till summer this way the tune is still valid. I have to get some gauges before I go ahead with this. I need a wideband, better boost gauge, and maybe an e85 gauge?

 

ethanol content analyzers are expensive$$$$ around 500+

if you search a little bit you will see 1 walbro with 1000cc inj are all you need. thats if you keep it around the 400hp range so dont stress it. you dont need to spend 1000k+ on a double pumper and injectors. your stock fuel rail and regulator are also fine for your goals.

but as stated before, why wait?!? lol if you got pumps around you with e85 then do it. you will be surprised on how much of a difference it will make.

 

He could also get away with a single walbro just fine. Why buy ****, if he's not gonna need it?

 

Im going to check a price on precision injectors tomorrow.
As for the tune, I want to wait until it gets a little bit warmer out, I drive the car mostly in the summer time+ the car with the cold is quick enough. - 32deg= 40whp more lol

 

where is this station, i live on long island also and wanted to do the change cause there popping up everyever