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Old 08-27-2011, 02:02 AM   #42 (permalink)
MGB=MPG
Smooth Operator
 
Join Date: Feb 2011
Location: dover tn
Posts: 147

Old Yellar - '79 MGB Tourer Drop-Hood Coupé
Sports Cars
90 day: 25.83 mpg (US)

Old Brown Ford - '91 Ford Bronco Custom

MAGNUM - '05 DODGE MAGNUM SXT
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back in the 50's some mixed acetone [ and others stuff] in the soup.. i discarded acetone because of its low flash point and inherent dangers in a hot engine compartment .. acetone is Flammable ..Nitromethane is only Combustible and has lots available oxygen molecules ..
likewise methanol has more available oxygen molecules than ethanol


Souped up machines are a great American tradition
...

indeed ,, 20/80 nitro is glow fuel .. 50/50 is Hot glow fuel

no theory ,, this is only a test ..

if you go back to page one .. first statement you will see

""Intake Manifold Injection
The question is: will injection of *Various Fluids & Vapors * directly in to the intake manifold enhance Fuel Efficiency,

reference document :
http://www.epa.gov/oms/consumer/devices/pb84163062.pdf
""



if i can establish a baseline w/o the top fuel .. then load top fuel and feed it at 'small rates ' and compare the baseline with the experimental value that may tell us something ..

very likely any FE increase will be below the noise level .. noise level= that inherent difficulty in measuring mileage by filling tank and dividing... error on fill is Noise.. ,

there have been those who claimed *significant* increase with water/, water methanol mixes and other proprietary mixes in to the carb,, intake..

my intent ,, over time .. is to accumulate date with *various mixes * added to the intake manifold .. ..
"Various fluids and vapors "
i will not belabor you with an exhaustive definition of various mixes ..
one mix is 20 nitro.. maybe i will run a set with 80% nitro..
or run a set with MW50 aka windshield washer fluid

Now im trying to set mix Lean of peak RE: EGT .. drive by EGT & Vacuum Gauge ..

today ran 60 miles ...30 out ,, adjusted mix 1/4 turn lean .. 30 back..
outbound EGT was running abt 1300 return running abt 1275..
in consideration the pyrometer is calibrated for ambient of 75F [ as i recall ] on the cold terminal and that for every degree above calibration that the cold terminal is the gauge will read a degree above true..and that my cold terminal is in my cabin , exterior ambient was 93F , and that the temperature of the foot feed just below that cold terminal was 100F and the tunnel just below also was 120F ,, expect my gauge was reading 25-30 F high .. which means im getting dialed right on in for target lean of peak EGT 1250F .. ,,

i was interested to see that i was hitting maximum EGT not on the upgrade with 10INHG throttle applied rather after cresting and 25INHG backed off .. ..

you tell me the theory on that .. Jack

anybody else out there Drive by EGT & Vacuum gauge .. it is an accepted method [in some circles] to obtain maximal FE.. shoot for maximum Vacuum minimum EGT,,

i think i need to get 3 readings about the same to establish baseline .. i need to run 300 miles to get a reading ,, this month ran 100 miles ,, its gonna take a while.. like about 9 months to establish base line ..

edit : ignition system .. ignition is classic points type 25D Lucas .. coil: Lucas sport coil providing 40,000 volts out put.. NON-Ballasted system
[capability is available to convert to a Bosch Super red Ballasted coil ]
bosch super plus plugs set to .032[specification]

Last edited by MGB=MPG; 08-27-2011 at 02:33 AM..
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