E85 and Honda engines

Wazzzup · Post by **Wazzzup** » Wed Sep 03, 2008 7:19 am

I did a little research about E85 fuel. But I was wondering if there need to be changes to the fuelsystem or to the engine. Because I read that the fuel is more aggressive than normal fuel.

Orthello · Post by **Orthello** » Wed Sep 03, 2008 9:30 am

Seti (Bas) is driving E85 for a while now I thought. EDIT: Or I am confused with E10. I can remember is was $%^#$% cheap.

sohcd16y8 · Post by **sohcd16y8** » Wed Sep 03, 2008 10:13 am

I have quite a few cars running around that run on e85 with no problems, many over the 2 year mark now. You do not need to change anything. E85 is NOT aggressive by any means, this is an internet myth that has built up over time as people got confused with straight ethanol and methanol. Even the cheapo 99 cent a foot gas line is rated for e85 use. I believe the SAE standard is j30r7, and this has been met or exceeded by manufacturers for many years. The only time you run into any issue is with raw aluminum it can have a slight reaction, however OEM tanks are steel, lines steel, and the rubber meets spec. Basically, you are fine, just fill up the tank and tune for it.

Civicman86 · Post by **Civicman86** » Wed Sep 03, 2008 12:08 pm

Do you need larger injectors than you would with a standard gasoline engine, or is this a myth as well? If I remember corectly ethanol stioch is like ~9:1 so I would think you would have to flow alot more fluid to match ratios (9:1 vs. 14.7:1).

Post by **Bugermass** » Wed Sep 03, 2008 9:03 pm

yes you need larger injectors, and fuel pump.

Civicman86 · Post by **Civicman86** » Wed Sep 03, 2008 10:44 pm

Bugermass wrote:yes you need larger injectors, and fuel pump.

Alright, I guess sohcd16y8 is saying everything but those two components will be fine for ethanol use.

cbustuner · Post by **cbustuner** » Tue Sep 09, 2008 6:54 pm

Any thoughts to what spark plugs work best for e85 on boosted and N/A applications? or would you just use the same plugs you do with regular gas.

Post by **Synoptic** » Fri Sep 12, 2008 11:51 am

you may use less cold plugs, since e85 should burn colder

sohcd16y8 · Post by **sohcd16y8** » Fri Sep 12, 2008 5:23 pm

Civicman86 wrote:
Bugermass wrote:yes you need larger injectors, and fuel pump.
Alright, I guess sohcd16y8 is saying everything but those two components will be fine for ethanol use.

Yeah, I thought he was talking about compatibility. Injectors and fuel pump are definitely needed for the extra fuel consumption.