Alternative Fuels Discussion and Tech on using alternatives such as E85 or Hydrogen or other fuels and/or supplements to Gasoline in Rotary Engines

E85 Mileage

Old 08-10-08, 09:01 PM
  #1  
Gone Race'n
10 Year Member
Thread Starter
iTrader: (4)
 
moremazda's Avatar
 
Join Date: Dec 2001
Location: Rockford, IL
Posts: 1,544
Likes: 0
Liked 0 Times in 0 Posts
E85 Mileage

I did a 70 mile stint yesterday and got 14 mpg but was into the very rich boost several times.

I did a 120 miles after that fill up and avoided the boost but I haven't gotten a chance to top off the tank yet.

If any one else has calculated mileage what are you getting?
moremazda is offline  
Old 10-04-08, 10:27 PM
  #2  
Gone Race'n
10 Year Member
Thread Starter
iTrader: (4)
 
moremazda's Avatar
 
Join Date: Dec 2001
Location: Rockford, IL
Posts: 1,544
Likes: 0
Liked 0 Times in 0 Posts
So six weeks later and few problems solved that last tank netted 11.4 mpg. There is a cruise up here next weekend that I'm going to "try" and go for a decent mileage number, but we'll see how hard I try.

Anybody else getting mileage numbers yet?
moremazda is offline  
Old 10-07-08, 04:05 PM
  #3  
MazdaTruckin.com Founder
5 Year Member
 
Kyrasis6's Avatar
 
Join Date: Mar 2003
Location: East Charlotte, NC
Posts: 402
Likes: 0
Liked 0 Times in 0 Posts
My car is in a million pieces so I don't have any numbers but if someone is building a motor and plan to run E85 higher compression ratios will help with the mileage a lot.
Kyrasis6 is offline  
Old 10-07-08, 06:52 PM
  #4  
Rotary Enthusiast
iTrader: (14)
 
Rocking Rotary's Avatar
 
Join Date: Aug 2002
Location: St. Paul, MN
Posts: 1,481
Likes: 0
Liked 3 Times in 2 Posts
Originally Posted by Kyrasis6 View Post
My car is in a million pieces so I don't have any numbers but if someone is building a motor and plan to run E85 higher compression ratios will help with the mileage a lot.
yeah, becouse we all know how well high compression works with forced induction.
Rocking Rotary is offline  
Old 10-07-08, 07:48 PM
  #5  
Dual Wielding DieGrinders
iTrader: (3)
 
theflatlander's Avatar
 
Join Date: Aug 2002
Location: Elko, NV
Posts: 705
Likes: 0
Liked 0 Times in 0 Posts
^it does if you're looking for boost response and not max power
theflatlander is offline  
Old 10-07-08, 07:48 PM
  #6  
Senior Member
iTrader: (2)
 
Join Date: Sep 2004
Location: Chicago
Posts: 498
Liked 0 Times in 0 Posts
which meet are you going to? starved rock?? I wanna see your car!!!
blimp is offline  
Old 10-08-08, 04:44 PM
  #7  
Senior Member
10 Year Member
 
Lasse wankel's Avatar
 
Join Date: Aug 2002
Location: Sundbyberg,Sweden
Posts: 419
Likes: 0
Liked 0 Times in 0 Posts
I have an RX-8 that has been E85 converted by myself here in Sweden. Piggyback is a Unichip. I manage 15.7 mpg on a highway at 75 mph. In city traffic it is 12-13 mpg. This was with a base map but tonight i have adjust the afr and add some 3-5 degree of advance timing so i will see next week what the fuel consumotion is. So far pretty satisfied ,except now when it's cold around zero degree celsius it is hard to start in the mornings. Cost for 1 gallon E85 is around $4.70

/Lasse
Lasse wankel is offline  
Old 11-25-08, 09:18 PM
  #8  
Full Member
10 Year Member
 
Join Date: Mar 2001
Location: TN
Posts: 160
Likes: 0
Liked 1 Time in 1 Post
No measurable change so far on my non-RX7. I currently get about 28 mpg all around on a tired ole' 89 240SX. I got slightly less before...but the injectors were extremely clogged initially, so it's hard to say if I have actually lost mileage.

In addition, I tend to run a 50-75% splash blend (E85 as the primary) since I have made no vehicle modification yet. For example, I am still running factory timing since I switch back and forth between fill ups due to lack of E85 in some small towns I travel through.
So I could likely do slightly better with permanently advanced ignition, but likely would get slightly less mileage (or break even) with an actual White Lightning kit/fuel ratio mod coupled with the timing advance. But due to E's steady (no spike) pricing, and the engine cleaning effect it has...it is worth such a loss IMO.
Dane is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: