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 Post Posted: Tue Jul 31, 2012 12:09 am 
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Joined: Tue Jun 09, 2009 11:43 pm
Posts: 19
Going to test some new fuel.... moving over from C-12 to VP-113..

Engine is 370 CID SBC, 23 degree heads, SUper victor manifold, 750HP carb. 5000-8000 RPM.

Generally speaking, what needs to be done to the emulsion tune up when switching to this type of oxy fuel?

I have not ran this type of fuel before.

thanks in advance!


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 Post Posted: Tue Jul 31, 2012 7:43 am 
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Joined: Wed Dec 06, 2006 9:24 pm
Posts: 5071
Location: Elizabethtown, KY
We have ran it for the last 3 years. Great stuff. They say jet it up 2 numbers. We tried and it didn't change. We must have been fat anyways. LOL I love the smell of it out of the exhaust. \:D/ \:D/ \:D/

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 Post Posted: Tue Jul 31, 2012 8:23 am 
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Joined: Mon Oct 29, 2007 7:07 pm
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Location: Florida
Nothing significant if your emulsion calibration is correct to start with. The problem is a lot of carbs already have too much, with some carbs it won't get rich enough with oxygenated fuel. How about posting specs on your car, engine, and as much as you can about the carb.


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 Post Posted: Tue Jul 31, 2012 9:42 am 
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Joined: Tue Jun 09, 2009 11:43 pm
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Thanks guys, this is an oval track deal... so play nice =;

Most of the tracks we race at specify fuel, but this one we are going to run at does not. Wanted to see what all the hoopla was about \:D/

Rules dictate 750 carb venturi and baseplate, with a downleg booster. Have been running a .028 HSAB, with an older set of pre HP metering blocks with two vertical emulsion holes and one kill bleed, all at .027.

Seems to run good, fuel ring on the plugs are nice, so I think the tune up is close.


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 Post Posted: Tue Jul 31, 2012 12:34 pm 
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Joined: Mon Oct 29, 2007 7:07 pm
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Location: Florida
The old school stuff is fine, they actually understood the reason for emulsion was to correct the fuel curve, not to emulsify the fuel. You will need more jet, likely 3-6 jet sizes up.


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