E85 with carb?

[FlintBuick4Life]

I seen a guy on Pinks with an old 30`s truck, V8, 4b carb, running on E85... What does it take to do this? I want to try it with my 78 Regal Sport, Draw-threw carb turbo, because it`s cheaper. but I don`t have a clue how it works.

 

[murphinator]

e85 is named for the 85% ethanol to 15% gasoline it is advertised to contain

during winter months in cold areas it is still labeled as e85 but is actually e70 with 70% ethanol

ethanol does not have the corrosive properties of methanol so many have made the swap without issues with corrosion

stoich for gasoline is 14.7 and for e10 which is common at the pumps in most areas stoich is 14.13

stoich for e 85 is 9.87 so around 32% more fuel would be required in comparison to straight gasoline without ethanol. so your fuel delivery system needs to be capable of delivering this extra fuel and then you need to meter it !

I have been studying in preparation for using e85 on my platform and plan to phase it in starting with 20% e 85 so you can also blend e85 with gasoline. Some areas have blender pumps where you can choose your own ratio of e85 to gasoline so its an acceptable practice

e85 is around 105 octane but the octane rating varies. beyond the high octane it provides a much cooler intake charge , on my platform non intercooled cars that would typically run mid 13's with the mods in place are able to pulley down enough to get in the 12's without intercoolers

 

[rmar]

Do you own a drill........?:biggrin:

 

[FlintBuick4Life]

Do you own a drill........?:biggrin:

Yes I do... umm... why? lol This sounds bad:biggrin:

 

[FlintBuick4Life]

e85 is named for the 85% ethanol to 15% gasoline it is advertised to contain

during winter months in cold areas it is still labeled as e85 but is actually e70 with 70% ethanol

ethanol does not have the corrosive properties of methanol so many have made the swap without issues with corrosion

stoich for gasoline is 14.7 and for e10 which is common at the pumps in most areas stoich is 14.13

stoich for e 85 is 9.87 so around 32% more fuel would be required in comparison to straight gasoline without ethanol. so your fuel delivery system needs to be capable of delivering this extra fuel and then you need to meter it !

I have been studying in preparation for using e85 on my platform and plan to phase it in starting with 20% e 85 so you can also blend e85 with gasoline. Some areas have blender pumps where you can choose your own ratio of e85 to gasoline so its an acceptable practice

e85 is around 105 octane but the octane rating varies. beyond the high octane it provides a much cooler intake charge , on my platform non intercooled cars that would typically run mid 13's with the mods in place are able to pulley down enough to get in the 12's without intercoolers

Thanks for the 411 on E85, now I know what its all about... still need to know how to hook it up though:biggrin: lol

 

[FlintBuick4Life]

Do I even need to do anything?

 

[dr_frankenstein]

the draw thru unit loves E85.

thats what I run.

I have a demon 825 converted to E85. the kits from quick fuel run like 350 bucks, make the swap and no major mods are needed.

The hard part. is insuring you have a good constant supply of E85. I can only get it in the summer months where I live. so look at availability first.

A.j.

 

[FlintBuick4Life]

Sweet:biggrin: Ill have to wait on that one, maybe my next move. I hope it come with instructions:biggrin:

 

[charlief1]

the draw thru unit loves E85.

thats what I run.

I have a demon 825 converted to E85. the kits from quick fuel run like 350 bucks, make the swap and no major mods are needed.

The hard part. is insuring you have a good constant supply of E85. I can only get it in the summer months where I live. so look at availability first.

A.j.

Thaks for the info Aj. I was wondering if you'd done the change over yet. Did you get the badge so you don't get in trouble? LOL

 

[MNcarbturbo]

I have done some reading and from what I have understood over E50 you start to use more fuel than normal straight gas. Up to E50 your milage drop is minimal. Until you smash the pedal though. I do have to argue with the whole E85 is corrosive thing. Aparently E85 doesnt directly eat the rubber lines it just cleans all the loose degraded rubber out and the reduced line size causes leaks. Theres a ton of E85 myths that get thrown out there that get assumed true. Some are true but most arent.