e85 engine

edwardsj · 2009-05-30, 10:03

I'm kicking around the idea of building a new engine I'm thinking about a 331 or 347 with about 14.5 to 1 compression ratio. but i want to know the good and the bad about using e85 and high compression ratios. I have look on the web but found little. this engine will be e85 0nly.

Bryant · 2009-05-30, 20:57

you get lower milage out of e85. you have to have a more expensive fuel system for it also. around here (san diego, ca.) e85 is extreemly hard to find and when you do its more expensive than regular gas. if these factors dont bother you then do it. it burns cleaner, the higher compression should make you more power than a standard pump gas motor could make you.

CornedBeef4.6L · 2009-05-30, 21:52

I iwll be running my 4.6l DOHC Carbed motor with e85. High compression here I come!!!!!

**bmcdaniel** · 2009-05-31, 19:29

You have to flow more fuel, thus Bryant's mention of a special fuel system. And you want to run E85 in a car that you drive regularly, it doesn't stay stable very long and can eat rubber fuel system parts.

PaulS · 2009-05-31, 23:49

Quote:

Originally Posted by edwardsj

I'm kicking around the idea of building a new engine I'm thinking about a 331 or 347 with about 14.5 to 1 compression ratio. but i want to know the good and the bad about using e85 and high compression ratios. I have look on the web but found little. this engine will be e85 0nly.

Great idea! 14:1 should be close to maximum running E85 though. If you plan on running carburetion you will need to locate an aftermarket maker that has the Ethanol conversion carbs - Holley has nothing to convert their carbs to ethanol. Holley does sell METHANOL carbs but not ethanol and they do have different metering needs.
My advice would be to adapt the fuel injection from a "flex fuel" car or go aftermarket for one.

markso125 · 2009-06-01, 01:24

This topic came up a little while ago and this is a good article to read on it

http://www.mustangandfords.com/techarticles/mufp_0708_car_gasoline_ethanol/carburetor.html

edelbrock does make a E85 carb from the factory the others are holley knock-offs

here is another arcticle on it

http://www.mustangmonthly.com/techar...ngs/index.html

PaulS · 2009-06-01, 01:40

So.... when are we going to see E85 stations in Washington?

CornedBeef4.6L · 2009-06-01, 05:24

The reason I am using E85 is I plan on running as much compression as I can get. It also runs cooler. When I am on that Vipers ass in a lil ole mav they can say that Bullmust of been corn fed

markso125 · 2009-06-01, 13:56

Quote:

Originally Posted by PaulS

So.... when are we going to see E85 stations in Washington?

We have one or two here in utah, and one or two biofuel stations too. At this point in time for me atleast it is more expensive to go 40 miles out of my way just to get some, also for us there is minimal price differentiation for the most part between E85 and E10 (regular gasoline) in part due to transportattion to get it here if it was more abundant I would definitely switch over.

PaulS · 2009-06-01, 14:10

Yep, I saw one in Olympia when I drove by the other day but that is close to 60 miles away. When we have them closer and in more places I plan on changing all three Mavericks over to it and boosting the compression in the process. By using the optimum compression you can get better mileage (almost the same as gas) and at higher power levels. You have to use more fuel per pound of air but under proper conditions that fuel expands a lot more than the air it replaces. There are some problems that have not been discussed - like cold start preheating but I have solutions for that. I will be able to run it on a cold engine even on the coldest of days.

2009-05-30, 10:03	#1
edwardsj Member Join Date: 2006-02-16 Location: ga Posts: 140 Vehicle(s): 1973 maverick iTrader: 2 (100%) Images: 3	e85 engine I'm kicking around the idea of building a new engine I'm thinking about a 331 or 347 with about 14.5 to 1 compression ratio. but i want to know the good and the bad about using e85 and high compression ratios. I have look on the web but found little. this engine will be e85 0nly. __________________ JAMES "Think knowledge is expensive......Try Ignorance"

2009-05-30, 20:57	#2
Bryant forgot more than learned Join Date: 2007-08-07 Location: San Diego Posts: 2,914 Vehicle(s): 72 grabber iTrader: 2 (100%)	you get lower milage out of e85. you have to have a more expensive fuel system for it also. around here (san diego, ca.) e85 is extreemly hard to find and when you do its more expensive than regular gas. if these factors dont bother you then do it. it burns cleaner, the higher compression should make you more power than a standard pump gas motor could make you. __________________ 72 grabber, Its now satin black. The motor is a 302 dynoed at 321 hp. C4 trans, 9" rear end. I work at San Diego Gear & Axle, so if you need any diff help or parts give me a call at (858)449-5656

2009-05-31, 19:29	#4
bmcdaniel Senile Member Join Date: 2002-07-02 Location: York. PA Posts: 3,670 Vehicle(s): '70 Maverick Grabber iTrader: 4 (100%)	You have to flow more fuel, thus Bryant's mention of a special fuel system. And you want to run E85 in a car that you drive regularly, it doesn't stay stable very long and can eat rubber fuel system parts. __________________ 70 Maverick Grabber, 5.0 (Performer RPM 2.02/1.6 heads, RPM intake, Comp XE266HR roller cam, Holley 650 DP, Hooker 6901s), T5Z w/Steeda TriAx shifter, 9" "N" case Trac Loc w/3.89:1, 31 spline axles.

2009-06-01, 01:24	#6
markso125 Member Join Date: 2007-08-19 Location: Brigham City utah Posts: 928 Vehicle(s): 1972 maverick 2 door LDO iTrader: 2 (100%) Images: 5	This topic came up a little while ago and this is a good article to read on it http://www.mustangandfords.com/techarticles/mufp_0708_car_gasoline_ethanol/carburetor.html edelbrock does make a E85 carb from the factory the others are holley knock-offs here is another arcticle on it http://www.mustangmonthly.com/techar...ngs/index.html __________________ Made in America...not just assembled here Last edited by markso125; 2009-06-01 at 01:32.

2009-06-01, 01:40	#7
PaulS Member extrordiare Join Date: 2004-05-02 Location: Seattle area Posts: 3,955 Vehicle(s): 1966 Mustang, 1972, 73, 73 and 73 Mavericks iTrader: 6 (100%)	So.... when are we going to see E85 stations in Washington? __________________ Paul 1 each 72 2dr., 73 2dr., 73 4dr., 66 Mustang Coupe.

2009-05-30, 21:52	#3
CornedBeef4.6L Voted off the Island Join Date: 2003-04-03 Posts: 5,137 iTrader: 21 (100%) Images: 3	I iwll be running my 4.6l DOHC Carbed motor with e85. High compression here I come!!!!!

2009-06-01, 05:24	#8
CornedBeef4.6L Voted off the Island Join Date: 2003-04-03 Posts: 5,137 iTrader: 21 (100%) Images: 3	The reason I am using E85 is I plan on running as much compression as I can get. It also runs cooler. When I am on that Vipers ass in a lil ole mav they can say that Bullmust of been corn fed

2009-06-01, 14:10	#10
PaulS Member extrordiare Join Date: 2004-05-02 Location: Seattle area Posts: 3,955 Vehicle(s): 1966 Mustang, 1972, 73, 73 and 73 Mavericks iTrader: 6 (100%)	Yep, I saw one in Olympia when I drove by the other day but that is close to 60 miles away. When we have them closer and in more places I plan on changing all three Mavericks over to it and boosting the compression in the process. By using the optimum compression you can get better mileage (almost the same as gas) and at higher power levels. You have to use more fuel per pound of air but under proper conditions that fuel expands a lot more than the air it replaces. There are some problems that have not been discussed - like cold start preheating but I have solutions for that. I will be able to run it on a cold engine even on the coldest of days. __________________ Paul 1 each 72 2dr., 73 2dr., 73 4dr., 66 Mustang Coupe.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode