With the mods listed in my sig. what kind of power increase would I get switching from pump gas to alky? Also how much more fuel do you use and what needs to be changed on the fuel system? [img]i/expressions/face-icon-small-confused.gif[/img]

 

I'd also like to add to that list what's some good toplube brands--scented and or unscented?

 

ttt

 

i gained probably 3 bike lenghts w/out a piston when i switched mine over to alky..it uses a quiet a bit more alky than it would gas..you can probably dune ride for almost a full 2 hours w/the 45mm carb..im not for sure on the top lube though i bout a 55 gallon drum and it already had top lube in it..

 

I picked up a TM45 carb at FSW and it had jetting for alcohol...I believe that DSmike had drilled out one of his unused smaller mains to approximately .125 or 1/8" and removed the pilot jet. Other than that filler up! The dyno that Charlie was using gave me a reading of 36.42hp on gas with stock carb and 56.14 on alky with tm45...something fishy there but it was definately an awesome seat of the pants no bs gain! I would suggest getting the IMS 5 gal tank to compensate for reduced gas mileage if you like the long trail rides.

 

major h/p increase

 

i still have the twin 39 fcr set up for methonal but i guess everyone is screed of some good carbs

 

the ratio of reg gas is 14:1-15:1 whereas alcohol is only 7:1-8:1requiring twice the amount of fuel to burn.

FUEL PROPERTIES

Property Methanol Ethanol Water Gasoline
Formula
CH3OH C2H5OH H2O C4-C12 hydrocarbons
Molecular weight
32.04 46.07 18 100-105 average
Specific weight, lbm/gal at 68 degrees F.
6.6 6.59 8.345 6.2
Boiling point, degrees F.
149 173.3 212 31-421
Flash point, degrees F. 52 55 --
-45

Stoichiometric air/fuel ratio <~~~~ this is what you look at for consumption 6.47 alky - 14.96 gas
6.47:1 9.01:1 --
14.96:1

BTU/gal
56,560 75,670 --
115,400

BTU/lb
9,080 11,900 --
19,050
Specific heat,
BTU/lb/degree F.
0.601 0.62 1.0 0.5
Latent heat of vaporization, BTU/lb
482 367 1000 133-145

Vapor pressure, psi
@ 100 degrees F., 1 atm.
4.6 2.5 0.96 7-15

 

HUH??!...what I want to know is if you fell through a manhole on top of 50k tank of fuel (JP-8, meth, unlead) could you swim your way out?[img]i/expressions/face-icon-small-wink.gif[/img]J/k...man, that was some serious info![img]i/expressions/face-icon-small-blush.gif[/img]but I need to know the coefficient of thermal expansion also!

 

...seriously...does alcohol/methanol burn cooler than unlead?