83mustang5.0GT

Yes I have read all the other threads about E85 and some people are for it and some are not really I dont care if you are for or against it. I just really want to know what is needed to be done to a stock 193 5.0 GT Carb so it can be safely run on E85. I was told that I should just get a racing kit for it since E85 is about the same effect on rubber parts as racing fuel. If this is true where can I get a kit to convert the carb, I have all ready done the fuel lines, filter, tank, and some other misc parts I just need to do the carb and fuel pump. But I was told that the pump that runs off the block would be fine for E85 I just got it like 2 months ago and the service people said it is all ready has non rubber seals.

And for you people that dont like it it is $.60 a gallon cheaper here then the 10% blend and regular gas, Yes I might get a little worse milage but it does produce for power because of the higher octane, but I dont think that the milage will be so much worse that is will account for a 60 cent difference per gallon.

Maxwelhse

I would hazard a guess that E85 would also require pretty radical carburetor re-tuning too. If you ever travel to areas where its not available you might end up being stranded somewhere.

That's just a hunch though. I remember back in the 80s when they tried "gas-a-hol" that none of the carbed stuff ran worth a crap on it.

67mustang302

Basically set your car up like a methanol car for the strip, alchy carb etc, but you'll have to rejet it to account for the 15% gasoline content. And more than likely your mileage will be quite a bit worse, since methanol and ethanol run about 2.5x richer than gasoline, do the math. E85 in a carbureted car is gonna consume around 2x the fuel per mile that it would with gasoline, so considering the cost to convert to run E85 on a carb, and the mileage, unless the E85 costs less than half of what gasoline does, it may turn out to be a bust that burns a hole in your pocket. More power production actually comes from the BTU/lb in fuel, alchohol based fuels have less BTU/lb but sincethey run much richer stochiometricly compared to gasoline, they actually produce slightly more BTU overall than gasoline does. Just stuff to think about

83mustang5.0GT

Well that is why I am doing the conversion with the stock carb so I can compare to see what the actual numbers are because I have a new carb and intake waiting for me just want to see what this will do for fuel milage and power.

ZachW04Stang

You have to get an alcohol carb, a plain holley's seals would just swell or deteriorate. E85 burns at about 8:1 or 7:1. The only reason I would do this swap is if you had a radical motor that you wanted to do more street driving with. I believe the octane of e85 is around 104 and you could get away with slightly higher compression then normal and run more timing. If its a stock motor there really is no point.

Boss_Hotrod

I think edlebrock makes an E85 carb. Not sure what all has to be done to run it though.

VigCS

It's cheaper and you get the peace of mind that you're polluting less. I'll probably convert mine eventually.