dang that sucks for some of you with winter blends. gas stations around me dont think its cold enough for it so, they just stay with the e85 blend. no e70 winter blends or anything here.

and yes that brad penn oil is the ****. still rockin the oem filter too.

 

Sorry to bump an older thread, but I just came across your post and wanted to correct you so that others don't get the wrong idea.

The only state that uses Class 1 E85 (79-85% ethanol) is Hawaii. Every other state varies between class 1, 2, and 3 throughout the seasons.

Seasonally Adjusted Blends
The amount of alcohol in the fuel ethanol blend depends on the geographical region and the season. In cold weather, more gasoline is added to the blend to ensure proper starting. A minimum of 70% by volume of alcohol is permitted in the winter blend by the ASTM fuel standard. This seasonal blending from 15% to 30% gasoline limits concerns about winter cold starting and are similar to seasonal adjustments of volatility (vapor pressure) used in gasoline blending throughout the United States.

ASTM volatility classes and their ethanol contents
Class #: Ethanol, plus higher alcohols (minimum volume %) / Hydrocarbons (including denaturant) (volume %)
Class 1: minimum 79% ethanol / 17-21% hydrocarbons
Class 2: minimum 74% ethanol / 17-26% hydrocarbons
Class 3: minimum 70% ethanol / 17-30% hydrocarbons

Volatility class by month/location in Washington
Volatility class by month/location in Colorado
In case you ever want to field test e85 in your area yourself:

The following summary describes a “field test” procedure to determine the levels of hydrocarbon and alcohol in E85.

The following equipment is available from VWR Scientific, 800-932-5000. Reference numbers are those used by VWR. Other equipment suppliers are available.

50 mL pipettes - Cat. #52966-217
Safety bulb - Cat. #53497-202
100 mL cylinders - Cat. #24762-117

Procedure for Determining Hydrocarbon Percent of Ethanol Fuel Samples
1. Using the suction bulb, pipette exactly 50 mL of fuel sample into the graduated cylinder.
2. Add about 48 mL of water to make the total liquid volume just under 100 mL.
3. Place the stopper in the cylinder and shake vigorously for about 15 seconds.
4. Carefully loosen the stopper to release any accumulated pressure; do not remove the stopper.
5. Close the stopper again and place the cylinder upright on a level surface. Allow the mixture to sit for about 15 minutes.
6. Record the total volume of liquid by reading the lowest part of the upper meniscus (the curved interface between the liquid and air).
7. Record the total volume of the alcohol/water layer by reading the lowest part of the lower meniscus (the curved interface between the two liquid layers).

Calculation
• The hydrocarbon percent is calculated by: 2.1 + 1.94*(total volume - alcohol/water volume)
• Assuming the sample was an ethanol/hydrocarbon mixture, the ethanol percent is 100 minus the hydrocarbon percent.

Source: US Dept. of Energy

 

cool info.

well i got a really bad batch of ethanol lately. it was like e50. afrs would dip well below 10. cruising would be like 11-12 on the gauge. normally there around 16-17. i could smell the difference and it was very noticeable that it was more potent with gas than ethanol. anyways, now im back to the station that i know only gets e85 and the numbers are good!

 

Hmm strange. I would expect e50 or similar would cause lean conditions.

I'm around 10.9 under boost and 12-14 cruising. e85 likes running rich it seems. I made more power on the dyno by increasing fuel.

 

well the more gasoline added to the mix youll be using more fuel and itll run more rich compared to e85. but with my tune right now its about 11.9-12.0 wot and about 16-17 cruising for good mileage. but yea on that last batch it was running really pig rich cause it had more gasoline in it. sucked for a while til i used all the shitty gas up. seems like your running a bit on the rich/conservative side on your tune.

 

Oh that makes sense. I forgot about the added fuel thing. duh! haha

I am running a bit on the rich side, but that is where we found the most power. Leaning it out actually lost power. Surprised me, but hey whatever works.

 

Great thread. A lot of good information. A few E85 cars I tuned a week or two ago. 2JZ-GTE's but still E85





And a friend's car also switched to E85

 

Is 500whp possible on e85 with 100% oem fuel system with the exception of 1000cc injector and 255lp walbro pump?

 

Hardwire the pump with a relay to the battery, might need a reg to bump up the pressure some...... but your fuel system should be maxed out at 500whp.

 

Just a quickie... Say my car is having a hard time passing emissions, would e85 with a tune/ or no tune make it more able to pass OBD1 emissions here in Texas?

 

No

 

This car just went 201 miles per hour in the standing mile on pump E85 Very happy

 

hey guys got a ? Im tuned on e85 right now..my question is when they switch it over will it mess up my tune? or will it just make it rich?

 

So you are on e85 right now? and you want to know that if you switch it over to gas will it mess up your tune...?

Well the answer is yes... if you dont touch your tune it will be a **** load richer and it will instantly run like ****.. ive seen cars instantly foul the plugs because it is so rich... figure you are going to instantly add 30% or more fuel into the car... so say the car was tuned for 11.50 AFR's if you add 30% more fuel you will be at 8.0 AFR's or so ...

 

nooo i mean switch as in when they add more gas to the e85 when it gets colder out.. my bad

 

haha ok ok..

Well if you have a wideband in your car... you will notice quite quickly if the E85 has changed to something else...

 

yeah i have a wideband...jw if its gonna throw the tune off ?its gonna be stored in the winter but will take it out on some nice days!

 

Ok, i have read through almost all this thread. I have a few questions if anyone can seriously help me out. ill start with my set up

*MOTOR* B16A2 ERL block with Dart sleeves.
-Bored to 82.5mm
-CP pistons
-Scat Rods w/ARP rod bolts
-balanced rotating assembly
*HEAD* B16A2
-Full Supertech valvetrain, springs retainers valves.
*FUEL*
Precision Injectors 1000cc's
Walbro 255 fuel pump
All stock oem fuel lines from stock tank.
I do have an inline fuel filter in the bay with braided line going to fuel rail.
********EDIT********-forgot to add Goals of 450-500HP

What exactly more do i need to run E85 or what do i need to exactly change to run E85?

 

yes its definately going to throw the tune off, and you will notice it on the wideband it will be noticeably richer going from E85 to E70

 

Just tune it, you could add lines but thats just a personal preference IMO

 

just tune it? really...the person im going to have tune it said i might have to add 1600cc injectors and possible dual fuel pumps? i forget to ADD, goals are 450-500HP...

 

I dont think so..500whp would be the limit with that fuel though, if you want insurance adding another pump or one inline would help but I dont think it is NECESSARY..

 

If your car is a street car 1600's suck, and 1600's with dual 255's Intanks will get you over 700whp with E85, not needed for your goals.

A 255hp and non-ID1000's should get you around 500whp on a DynoJet +/- 25whp, as just stated above adding another inline 255hp would help some because you dont want to be running around with a maxed out fuel system.

A better planned fuel system for 500whp on E85 is an Intank 255hp to a Bosch 044 Inline to ID1000's, that will give you around 600whp with E85.

 

ok thanks

 

ok thanks for input man