Welcome to the North American Subaru Impreza Owners Club Saturday October 24, 2020
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 07-18-2019, 02:03 PM   #8851
TDagen
Scooby Specialist
 
Member#: 163648
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: Xona 7864 UHF
Vehicle:
2002 WRX
V9 6mt R180 Brembos

Default

Quote:
Originally Posted by no694terry View Post
ya and it could actually go up a bit as you get closer to e85 in the tank (probably never get higher than e80 though from pump). Flex fuel tunes are a blend of two maps. at e70, the volumns only up like 85%
FWIW the good E85 pumps in MN have E85 over 80%. Xluben posted a photo of 83-84% reading on his accessport. IMO you gotta find the right stations.

https://www.instagram.com/p/BheIos-FYE-/
* Registered users of the site do not see these ads.
TDagen is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-18-2019, 04:25 PM   #8852
StiLimited
Scooby Newbie
 
Member#: 121212
Join Date: Jul 2006
Chapter/Region: SWIC
Vehicle:
2007 Sti Limited
Urban Gray Metallic

Default

I have to drive into Vegas to get my E85 so I buy 50-100 gallons at a time and keep it in my shed. When I buy it it tests about 80-85% but after sitting in my shed for 6 months it's now 90%. So for some reason the gasoline is evaporating and the ethanol is staying behind. (best guess) I'm storing the fuel in High-density polyethylene jerry cans. (https://www.uline.com/Product/Detail...Gallon-Natural) I've tested this for 3 years now and it's always the same results. I also use the stabil for ethanol fuel stabilizer if that has any effect I don't know. Next time I'll test before and after mixing.

I like the jugs cause they can stack 3 even 4 high when full. :-)

Last edited by StiLimited; 07-18-2019 at 04:30 PM.
StiLimited is offline   Reply With Quote
Old 07-18-2019, 09:53 PM   #8853
HuckFinn
Scooby Newbie
 
Member#: 298502
Join Date: Oct 2011
Chapter/Region: RMIC
Vehicle:
2011 WRX sedan

Default

Quote:
Originally Posted by StiLimited View Post
I have to drive into Vegas to get my E85 so I buy 50-100 gallons at a time and keep it in my shed. When I buy it it tests about 80-85% but after sitting in my shed for 6 months it's now 90%. So for some reason the gasoline is evaporating and the ethanol is staying behind. (best guess) I'm storing the fuel in High-density polyethylene jerry cans. (https://www.uline.com/Product/Detail...Gallon-Natural) I've tested this for 3 years now and it's always the same results. I also use the stabil for ethanol fuel stabilizer if that has any effect I don't know. Next time I'll test before and after mixing.

I like the jugs cause they can stack 3 even 4 high when full. :-)
This got me curious about how FlexFuel sensors actually work. This is what I found...

Typical sensors used for FlexFuel setups determine ethanol concentration by measuring the relative permittivity of what's flowing through the sensor. Gasoline has a lower relative permittivity then ethanol. Water has a higher relative permittivity then ethanol. Keep in mind ethanol is hydrophilic (water loving), so it will absorb water vapor in the air over time.

What's most likely happening in your case; the E85 is slowly absorbing water vapor in the air, which will cause a FlexFuel sensor to read higher concentrations of ethanol then actual. The Stabil may also be throwing off the readings. You could test the later by running E85 through a FlexFuel sensor without Stabil, adding some Stabil to your tank and then seeing what the sensor shows after driving around for a bit to mix it in the fuel. See the below links for more info:
https://cecas.clemson.edu/cvel/auto/...el-sensor.html

Last edited by HuckFinn; 07-18-2019 at 10:13 PM.
HuckFinn is offline   Reply With Quote
Old 07-19-2019, 02:10 AM   #8854
StiLimited
Scooby Newbie
 
Member#: 121212
Join Date: Jul 2006
Chapter/Region: SWIC
Vehicle:
2007 Sti Limited
Urban Gray Metallic

Default

actually I'm not using a sensor. I'm using the Quick Fuel Test Tube

https://www.amazon.com/Quick-Fuel-Te.../dp/B007ZJ749O

I definitely will test next time before and after stabil.

But I doubt it's much water being absorbed. I live in a very dry area of So. Nevada, typical humidity is single digits. The fuel is kept in the HDPE containers tight, and they are in a vented shed. Not saying impossible, but if it is, I can't imagine it being much.
StiLimited is offline   Reply With Quote
Old 07-19-2019, 08:22 AM   #8855
no694terry
Scooby Specialist
 
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:
2018 Exotruck
EJ22e 415whp/398wtq

Default

Quote:
Originally Posted by StiLimited View Post
I have to drive into Vegas to get my E85 so I buy 50-100 gallons at a time and keep it in my shed. When I buy it it tests about 80-85% but after sitting in my shed for 6 months it's now 90%. So for some reason the gasoline is evaporating and the ethanol is staying behind. (best guess) I'm storing the fuel in High-density polyethylene jerry cans. (https://www.uline.com/Product/Detail...Gallon-Natural) I've tested this for 3 years now and it's always the same results. I also use the stabil for ethanol fuel stabilizer if that has any effect I don't know. Next time I'll test before and after mixing.

I like the jugs cause they can stack 3 even 4 high when full. :-)
I have a theory on this, I actually asked Bisimoto about this once on one of his life chat things and he didnt understand the question I dont think.

First to understand my theory you gotta understand that a GM ethanol sensor is actually just a ohm meter. It test the resistance of the fuel at certain temps, that is why it also has a temp gauge built into it. It knows the conductivity (ability for electricity to pass through it) for both fuels. Gasoline is pretty much di-electric, electricity can barely pass through it. Ethanol, allows a little more flow but still not enough to go shorting out your fuel pump and making you explode.

Second, you need to remember that alcohol is VERY hydroscopic, it absorbs water. WATER lets electricity flow right on through it. As ethanol sits it absorbs the water in the air and as it absorbs water, I believe that throws off the conductivity reading of the sensor.

My fuel tank is pretty vented, i have no evap or anything. I can fill up today with e75 and in a week it will be reading closer to e80 with Pittsburgh humidity
no694terry is offline   Reply With Quote
Old 12-08-2019, 12:06 AM   #8856
albersondh
Scooby Newbie
 
Member#: 196882
Join Date: Dec 2008
Chapter/Region: MWSOC
Location: Holset baller on a budget.
Vehicle:
08 WRX

Default

The quick fuel tube is a great no nonsense device that takes water absorption out of the equation. I was using one back when E85 started being readily available in MI (2008). Such a PIA to use compared to just watching a gauge though.... Using a Zietronix now and tuning for flex fuel. Unfortunately the days of year-round E85 in MI are over. Seasonal blend I'm getting E75.... Hunted around for any hold out stations that may still run E85 all year, haven't found a single one (Detroit area).

albersondh is offline   Reply With Quote
Old 12-08-2019, 04:33 PM   #8857
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
Dom 1.5xtr JJ tuned

Default

Quote:
Originally Posted by StiLimited View Post
...But I doubt it's much water being absorbed. I live in a very dry area of So. Nevada, typical humidity is single digits. The fuel is kept in the HDPE containers tight, and they are in a vented shed. Not saying impossible, but if it is, I can't imagine it being much.
I would say it's probably a little of both. If the gasoline vapor can evaporate out, then it's getting out of the can. And, if gasoline vapor can get out, then air can get back in if the air gets cooler. It might be "dry" air, but it still contains some water vapor.
Dave D. is offline   Reply With Quote
Old 02-13-2020, 10:55 PM   #8858
Azerpm1
Scooby Newbie
 
Member#: 455380
Join Date: Sep 2016
Chapter/Region: International
Location: Melbourne
Vehicle:
2004 WRX STI
Twinscroll Ej207 VF37

Default

Recently fixed a worn wastegate actuator and injector leak. Pretty happy with the results, but wish there was more top end. Any suggestion on how to get up to 350-400hp? Thinking turbo, headstuds and decat?

Also, I've noticed the car is very hard to restart once warmed up. It'll spit fuel out the exhaust while cranking, then fire up after a few tries while holding throttle open 50%. Cold starts are fine.

https://i.imgur.com/6dPM2KK.jpg
https://i.imgur.com/xZmeHpD.jpg
https://i.imgur.com/nGpBe70.jpg

Final Tune - Hub Dyno:
Ambient: 86F
Humidity: 70%
Elevation: 101ft
308hp
330ftlb


2004 WRX STI(ADM) Twinscroll on E85

Stock Version 8 Ej207 swap(30,000miles)
Stock VF37 turbo
Stock Twinscroll Headers/Up-pipe
Raceworks 1000cc Injectors(Bosch)
DW300 Fuel Pump
Stock STI TMIC
AVO Turbo Inlet
Process West CAI
Turbosmart 15lb IWG75
Turbosmart Kompact Dualport BOV
MAC 3 port
AVO 3" Downpipe(160cell cat - 5", open bell)
Blitz Nur Spec Catback

Last edited by Azerpm1; 02-13-2020 at 11:12 PM.
Azerpm1 is offline   Reply With Quote
Old 02-14-2020, 12:01 AM   #8859
rexblake
Scooby Specialist
 
Member#: 178426
Join Date: Apr 2008
Location: FoCo
Vehicle:
2010 S4
Gray

Default

Quote:
Originally Posted by Azerpm1 View Post
Recently fixed a worn wastegate actuator and injector leak. Pretty happy with the results, but wish there was more top end. Any suggestion on how to get up to 350-400hp? Thinking turbo, headstuds and decat?

Also, I've noticed the car is very hard to restart once warmed up. It'll spit fuel out the exhaust while cranking, then fire up after a few tries while holding throttle open 50%. Cold starts are fine.

https://i.imgur.com/6dPM2KK.jpg
https://i.imgur.com/xZmeHpD.jpg
https://i.imgur.com/nGpBe70.jpg

Final Tune - Hub Dyno:
Ambient: 86F
Humidity: 70%
Elevation: 101ft
308hp
330ftlb


2004 WRX STI(ADM) Twinscroll on E85

Stock Version 8 Ej207 swap(30,000miles)
Stock VF37 turbo
Stock Twinscroll Headers/Up-pipe
Raceworks 1000cc Injectors(Bosch)
DW300 Fuel Pump
Stock STI TMIC
AVO Turbo Inlet
Process West CAI
Turbosmart 15lb IWG75
Turbosmart Kompact Dualport BOV
MAC 3 port
AVO 3" Downpipe(160cell cat - 5", open bell)
Blitz Nur Spec Catback
Definitely a bigger turbo. Something GT30 sized would be good.
A fmic would help too.
rexblake is offline   Reply With Quote
Old 02-14-2020, 01:54 AM   #8860
subaru_gc8
Scooby Specialist
 
Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by Azerpm1 View Post
Recently fixed a worn wastegate actuator and injector leak. Pretty happy with the results, but wish there was more top end. Any suggestion on how to get up to 350-400hp? Thinking turbo, headstuds and decat?

Also, I've noticed the car is very hard to restart once warmed up. It'll spit fuel out the exhaust while cranking, then fire up after a few tries while holding throttle open 50%. Cold starts are fine.

https://i.imgur.com/6dPM2KK.jpg
https://i.imgur.com/xZmeHpD.jpg
https://i.imgur.com/nGpBe70.jpg

Final Tune - Hub Dyno:
Ambient: 86F
Humidity: 70%
Elevation: 101ft
308hp
330ftlb


2004 WRX STI(ADM) Twinscroll on E85

Stock Version 8 Ej207 swap(30,000miles)
Stock VF37 turbo
Stock Twinscroll Headers/Up-pipe
Raceworks 1000cc Injectors(Bosch)
DW300 Fuel Pump
Stock STI TMIC
AVO Turbo Inlet
Process West CAI
Turbosmart 15lb IWG75
Turbosmart Kompact Dualport BOV
MAC 3 port
AVO 3" Downpipe(160cell cat - 5", open bell)
Blitz Nur Spec Catback
I have a gtx 3067 and runnign v9 heads with cams on pump and Im close to the 400 range
subaru_gc8 is offline   Reply With Quote
Old 03-03-2020, 12:21 PM   #8861
chrisroug
Scooby Newbie
 
Member#: 443156
Join Date: Mar 2016
Chapter/Region: SCIC
Location: Central Coast CA
Vehicle:
2015 STI
Pearl White

Default

Quote:
Originally Posted by subaru_gc8 View Post
I have a gtx 3067 and runnign v9 heads with cams on pump and Im close to the 400 range
Starting my closed deck on my 15 STI. Hoping for over 400 when done. I have the full cobb flex kit with 1050x's, Cobb FMIC, full Invidia Exhaust, TiAL EWG, and will have the Cobb 20g. We'll see in the coming months what she puts down.
chrisroug is offline   Reply With Quote
Old 03-25-2020, 09:07 PM   #8862
Okie Sandcar
Scooby Newbie
 
Member#: 487484
Join Date: Jun 2018
Default E85 in the plans

I am in a different game than the posts I read here, but I am working on a Subaru project that I will be running E85, or at least whatever the pumps give me. Not a drag racer or street racer, but a sandcar. No high dollar motor, but a stock 2.5 n/a with added turbo. Still working on the conversion, so no numbers yet. The Corona virus has shut my tuner/dyno guy's business down until this stuff clears up. Major set back.
Okie Sandcar is offline   Reply With Quote
Old 04-18-2020, 12:47 AM   #8863
tbscamcity
Scooby Newbie
 
Member#: 508009
Join Date: Nov 2019
Location: DFW, Texas
Vehicle:
2018 WRX STI
WR Blue

Default

451awhp/419wtq - E85 Mustang Dyno
- 1050cc injectors (92% Duty)
- Blouche 1.5XTR Turbo
- 500ft elevation

Last edited by tbscamcity; 04-19-2020 at 12:32 AM.
tbscamcity is offline   Reply With Quote
Old 04-18-2020, 03:43 PM   #8864
scoobyfast
Scooby Newbie
 
Member#: 338128
Join Date: Nov 2012
Chapter/Region: NESIC
Location: NJ
Vehicle:
2013 WRX
SBP

Default

Oh my, those poor injectors, lol
scoobyfast is offline   Reply With Quote
Old 06-26-2020, 01:27 PM   #8865
SnoBrrru
Scooby Newbie
 
Member#: 501446
Join Date: May 2019
Chapter/Region: RMIC
Location: Reno, NV
Vehicle:
'15 WRX

Default

2015 WRX. Full bolt-ons / built motor.

Shortblock by Casey at Herbert Performance
Engine build and tune by Clinton at Shifted Performance

Car made about 390whp with 400tq at 4600' elevation at e80 final count.
Likely sending the turbo to SoCal Porting in a couple months.



SnoBrrru is offline   Reply With Quote
Old 06-27-2020, 02:37 PM   #8866
jbolduc33
Scooby Newbie
 
Member#: 516180
Join Date: Jun 2020
Location: Florida
Default

OMG - crazy cool!
jbolduc33 is offline   Reply With Quote
Old 09-08-2020, 02:41 AM   #8867
Butterz123
Scooby Newbie
 
Member#: 456281
Join Date: Oct 2016
Location: Australia
Vehicle:
2012 WRX Clubspec

Default

Finally part of the flex crew.

Dynapack Hub Dyno:
Ambient: 67/70F
Humidity: 54%
Elevation: 127ft
Fuel: E80 - 11.5afr @ WOT
E-Tuned by Stevie @ Pullz-On-Tuning
21-22psi
391.59hp
377.9tq


Stock bottom end / heads
Rotated Gtx3076r
Raceworks 1250cc injectors (85-87%dc)
dw300c pump
Zeitronix flex kit
fmic - 4" turbo inlet, 2.5" hot 3" cold
Turbosmart Gen-v 38mm ewg
mac 3 port
custom 3 inch tbe
HKS SSQV
Equal Length Headers

https://flic.kr/p/2jEwrdG

https://flic.kr/p/2jEvvPg

Tried putting [img] but didn't like it haha

Last edited by Butterz123; 09-08-2020 at 09:06 PM.
Butterz123 is offline   Reply With Quote
Old 10-06-2020, 02:18 AM   #8868
defiant_supra
Scooby Newbie
 
Member#: 377543
Join Date: Jan 2014
Chapter/Region: South East
Location: Columbia
Vehicle:
2014 sti
Grey

Default

Just a random question here but do you guys running E keep it on E year around? When it gets cooler here its such a pita on the cold start. Point of reference I'm running Id2ks, stage 2 cams, an AMS manifold(no TGVs), and speed density tune.
defiant_supra is offline   Reply With Quote
Old 10-06-2020, 10:35 AM   #8869
340Duster
Scooby Specialist
 
Member#: 52314
Join Date: Jan 2004
Chapter/Region: South East
Location: Following the green weenie
Vehicle:
2002 PSM WRX 16G-XT
Dorothy from OZ, the XT

Default

Quote:
Originally Posted by defiant_supra View Post
Just a random question here but do you guys running E keep it on E year around? When it gets cooler here its such a pita on the cold start. Point of reference I'm running Id2ks, stage 2 cams, an AMS manifold(no TGVs), and speed density tune.
You need to adjust cold temp enrichment. My car back in SC runs E all year round and fires right up.
340Duster is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Motion Lab Tuned: Juanmedina's 2007 WRX E85 ARMY Motion Lab Tuning Proven Power Bragging 125 04-12-2010 02:57 AM
jid2 Track Car - e85 ARMY jid2 Member's Car Gallery 38 01-22-2010 10:44 PM
The Honduran army is the bravest in the world... wrxcelent Off-Topic 36 07-07-2009 08:21 AM
Spacific E85 Tuning thread Here ? discopotato03 Engine Management & Tuning 1 09-09-2008 11:01 AM
Did anyone hear the one about the Italian army and the IRAQI satiation? Asinine Off-Topic 3 09-20-2005 07:06 PM

All times are GMT -4. The time now is 04:49 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.