E85 diary - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-16-2011, 10:14 AM   #21
Junior Member
Thread Starter
iTrader: (7)
 
Join Date: Jun 2005
Location: Texas
Posts: 376
Total Cats: 16
Default

Quote:
Originally Posted by triple88a View Post
What did you change when you went to E85? Did you mess with the fuel pump or fuel lines at all?

What did you end up adjusting on the timing? Just add 3` across the range?

At last i'm confused by the chart you show. Let say i'm using my regular fuel LC1 Wideband. For gasoline i am looking for 14.7 on the gauge and 12 in low boost. What would the same gauge show when running E85?
All I did was swap in big injectors and drained the gas. There are long term Evo's and Honda's with no problems - as far as my searches went. I don't think I've found any Miata people with E85 problems.

Yes, I am at +3 which is extremely conservative, considering my gas tune was conservative. I have a feeling I'll be able to go a lot further but just haven't put in the time to tune.

The chart converts from E85 readings to gasoline readings so you don't have to recalibrate your mind. If the wideband display read between 8 and 12 my head would hurt.

Many people tune for 14.7 cruise which is just fine. I am at 17 or leaner, this definitely made a difference to my mileage.

I shoot for 12.0 under boost. I don't really care if it drifts up or down with the differences in ethanol content. Running too rich, closer to 11.0-11.2?, increases the chance of pre-ignition. I think the Evo guys have info on this effect.
dvcn is offline   Reply With Quote
Old 04-16-2011, 11:35 AM   #22
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

So we're filling up with E85 and not changing lines? That's pretty cool. Will 550cc injectors pump enough fuel for 250whp on a Walbro 255 with a stock regulator?
hustler is offline   Reply With Quote
Old 04-16-2011, 11:55 AM   #23
Junior Member
Thread Starter
iTrader: (7)
 
Join Date: Jun 2005
Location: Texas
Posts: 376
Total Cats: 16
Default

Quote:
Originally Posted by hustler View Post
So we're filling up with E85 and not changing lines? That's pretty cool. Will 550cc injectors pump enough fuel for 250whp on a Walbro 255 with a stock regulator?
If I have any (corrosion) issues I will immediately report them.

I don't think the 550's will cut it unless you run ultra high pressure, which I'm not a fan of. The pressure vs volume specs are ugly.

What are your duty cycles now? Base pressure? Somewhere around 45psi base I was hitting almost 90% at around 250whp.
dvcn is offline   Reply With Quote
Old 04-16-2011, 12:31 PM   #24
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by dvcn View Post
If I have any (corrosion) issues I will immediately report them.

I don't think the 550's will cut it unless you run ultra high pressure, which I'm not a fan of. The pressure vs volume specs are ugly.

What are your duty cycles now? Base pressure? Somewhere around 45psi base I was hitting almost 90% at around 250whp.
71% at 240whp/12psi on gasoline, I don't know the base pressure. I'd need about a 35% increase in flow so I'll need larger injectors, which I'm not buying.
hustler is offline   Reply With Quote
Old 04-16-2011, 01:06 PM   #25
Elite Member
 
Join Date: Apr 2010
Location: Newcastle, Australia
Posts: 2,640
Total Cats: 25
Default

71% multiplied by 1.3 = 92%, youll be sweet with a few more psi (maybe 10)

Dann
nitrodann is offline   Reply With Quote
Old 04-16-2011, 08:00 PM   #26
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

triple88a is offline   Reply With Quote
Old 04-17-2011, 02:35 AM   #27
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

I've yet to find/see pictures of E85 carnage to the fuel system.
triple88a is offline   Reply With Quote
Old 04-17-2011, 06:13 AM   #28
Elite Member
 
Join Date: Apr 2010
Location: Newcastle, Australia
Posts: 2,640
Total Cats: 25
Default

Honestly i think some of the shiny coating the fuel filler has on it is corroding off mine. Its the only shiny plated part of the system though.

Dann
nitrodann is offline   Reply With Quote
Old 04-17-2011, 01:16 PM   #29
Junior Member
iTrader: (3)
 
Join Date: Feb 2010
Location: boston, ny
Posts: 282
Total Cats: 0
Default

anybody try the oxytane **** thats out? its supposed be like the lead substitute of ethanol of our time....lol... but ive read of people using it and getting a bit better milage from it........ link----> http://www.oxytane.com/

has or does anyone use any of the ethanol treatments? i got a bottle of the lucas stuff, you add like an oz of fluid per 5 gallons, the bottle should last a few fills atleast... i just figured id ask here while you guys are talking about corroding the lines and other crap....
yunvmyegt is offline   Reply With Quote
Old 04-17-2011, 02:08 PM   #30
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

triple88a is offline   Reply With Quote
Old 04-17-2011, 02:33 PM   #31
Junior Member
iTrader: (3)
 
Join Date: Feb 2010
Location: boston, ny
Posts: 282
Total Cats: 0
Default

heres some other carnage from a different forum, this is more what i see people complaining about more than anything.... which is why after running e85 more than a month and about 1500 miles i thaught it might be a good idea to start using the treatment to keep **** clean inside.......lol.....see if it works i guess...lol....

http://www.turbobuick.com/forums/e85...ctor-gunk.html
yunvmyegt is offline   Reply With Quote
Old 04-17-2011, 02:38 PM   #32
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

Quote:
Originally Posted by yunvmyegt View Post
heres some other carnage from a different forum, this is more what i see people complaining about more than anything.... which is why after running e85 more than a month and about 1500 miles i thaught it might be a good idea to start using the treatment to keep **** clean inside.......lol.....see if it works i guess...lol....

http://www.turbobuick.com/forums/e85...ctor-gunk.html
You do know that E85 is a cleaner, not a gunk builder like gasoline right? The only carnage logically possible would be if something melted away (other than the obvious wrong combustion carnage).

My guess on what that crap is, E85 attracts moisture. The incoming air can only be cleaned by the air filter so much therefore attracting the "mud" to the tips of the injectors. Reading some more on those forums, people are reporting fuel lines and fuel rail to be spotless and clean.

Last edited by triple88a; 04-17-2011 at 03:04 PM.
triple88a is offline   Reply With Quote
Old 04-17-2011, 02:53 PM   #33
Junior Member
iTrader: (3)
 
Join Date: Feb 2010
Location: boston, ny
Posts: 282
Total Cats: 0
Default

ya i get that, i seen how clean my few year old plugs looked after running it 2 weeks..lol.... im just talking about all the **** people are throwing around the net about stuff breaking down and plugging stuff. but it wasnt much , and i just figured id try it, and throw it in every other few tanks.... id rather get the oxytane ****, but i cant get ahold of the place local i found who carries it...
yunvmyegt is offline   Reply With Quote
Old 04-17-2011, 03:12 PM   #34
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

I'd rather switch my tunning every other month for a week and run 93 than to bother with ordering snake oils online.
triple88a is offline   Reply With Quote
Old 04-17-2011, 03:22 PM   #35
Junior Member
iTrader: (3)
 
Join Date: Feb 2010
Location: boston, ny
Posts: 282
Total Cats: 0
Default

oxytane one caught my interest on a volvo forum cause they where going from a high 20 low 30mpg car to high 30s low 40s. if it works id be totally down to buy a case, its like 100 for a case and you only use a little bit of a bottle per tank. its supposed to help the ethanol burn , add power and some milage.... kinda like the one chemical people found and started putting in gas... i dont wanna go to far OT but i was just curious of others opinions on the crap...lol...
yunvmyegt is offline   Reply With Quote
Old 04-17-2011, 03:26 PM   #36
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

You see my line calling it snake oil? Yup, thats my opinion on it.
triple88a is offline   Reply With Quote
Old 04-17-2011, 03:28 PM   #37
Junior Member
iTrader: (3)
 
Join Date: Feb 2010
Location: boston, ny
Posts: 282
Total Cats: 0
Default

i also said others opinions too... lol...
yunvmyegt is offline   Reply With Quote
Old 04-19-2011, 05:47 PM   #38
Supporting Vendor
iTrader: (1)
 
Join Date: May 2010
Location: San Diego
Posts: 491
Total Cats: 39
Default

Great information in this thread, I have been tempted to change to E85 when I pick up an ECU. San Diego has so few E85 stations which poses a problem. What kind of MPG have you seen on E85?
Lincoln Logs is offline   Reply With Quote
Old 04-20-2011, 12:32 AM   #39
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

I'm planning on switching to 75% O93-25%E85 mix and see how it goes then adjust the afr, then go to 50-50, adjust then on to full e85, any one see a problem with that?
triple88a is offline   Reply With Quote
Old 04-20-2011, 05:12 AM   #40
Elite Member
 
Join Date: Apr 2010
Location: Newcastle, Australia
Posts: 2,640
Total Cats: 25
Default

Just a lot more work than a straight swap, and you cnt go to a servo and buy 50-50, can you. I can see you could buy 50-50 but that would be a pain when you can just add 30% across your whole map, or with injector scaling and just tune it...why NOT do that?

Dann
nitrodann is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM
1.8, C30-74 Rotrex, 9psi, 235WHP/190WTQ (E85) Lincoln Logs Dynos and timesheets 4 09-23-2015 01:26 PM
1991 Turbo Miata partout tottestad Miata parts for sale/trade 18 09-14-2015 08:52 PM
Is E-85 worth it N/A? Stealth97 ECUs and Tuning 22 08-31-2015 05:38 PM
Polished Turbo from ebay with extras! theshdwconspracy Miata parts for sale/trade 0 08-29-2015 07:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:13 AM.