thats becouse, ethanol or any type of alcahol is a colder fuel, cold start will be horrible and as mentioned until the motor comes up to temp. (if you can get it up to temp) will be soggy. beond that alchahol absorbs water out of the air, so if you dont drive the car much you'll have a tank full of water. this is the same reason the fuel conditioner HEET pulls water from your fuel system. and why if you watch the methenol guys at the track they drain fuel between rounds, this is to keep the car consistiant. this is only multiplide if you live in a humid invroment.
My question is do all the methanol cars drain the tank?Or just the Blown ones?Cause if they do,they are doing it to measure the amount of fuel used in a previous run.Not to keep the car consistant.And sure as hell not to keep the fuel from turning to water.Most racers know how to fill their car as to keep the same amount of fuel in the tank.But we dont have a fuel level guage.So it's hard to tell,especially when it gets dark.And as far as being a colder fuel,well in a scence it is.It runs cooler but burns hotter.You don't have to run a very large radiator at all with Methanohl.We actually don't run any water in the block.But you need a pretty powerful spark,or you will put the plugs out due to washdown.That's handeled by a MSD 10 box.
Did you ever think that they might drain the tank,after they make a pass, "with Nitro" as to not contaminate the next fill up.Most santioning bodies require a fuel sample after a pass also.Not that they need two gallons,for a sample,but it's just a thought.Reason I said all this is because we have run Methanohol in the Dragster for 10 years and only drain the tank at two or three intervals in a whole racing season.Hell, I'd hate to know that I had to drain the tank too with all of the rest of stuff that has to be done in 50 minutes.I'd dare to say that the fuel that was in the tank,in our Blown Dragster, at the end of last year will be the first used this year.But,I'll know next weekend when we take her to the track.
One thing I will mention is that if E-85 is as corrosive as Alcohol or Methanohol,it would be a good idea to add a small fuel tank on your car filled with 92 octane.Because, if you let unburned fuel "Alcohol" sit in the cylinders for an extanded amount of time,say a week,it will cause rust in the bores,as it evaporates.At the track,we just remove the spark plugs and roll the engine over a couple of times with the fuel turned off the evacuate to cylinders of fuel. But I assume that E-85 is only 85%Ethenohol and 15% Gasoline,which should eleviate that.
