Good info and I always use my Boriz meter thru the fuel filter then needle. If there's a drastic change, filters dirty.I always use a filter between tank and carb as well as in the fuel jug .Check the filter after each heat and backflush with a quick shot of brake clean . JMHO
After many runs, at the recent SAW trials here, my 46 outboard seemed to be starving at the top end...not lean though. On the boris it flowed fine. took it apart and found alot of 'stuff' in there... so lesson is that the Boris doesn't show volume of fuel being let throughGood info and I always use my Boriz meter thru the fuel filter then needle. If there's a drastic change, filters dirty.I always use a filter between tank and carb as well as in the fuel jug .Check the filter after each heat and backflush with a quick shot of brake clean . JMHO
Fuel cooler? Whats the story with that Ron?The mesh filters work very well for nitro. It also needs to be easily cleaned. Here Is a pic of the one made by Novarossi that I sell a lot of to customers. The price is great for an aluminum nitro fuel filter. I have also included the link as well. Thanks.
https://www.novarossi.us/collections/fuel-accessories
Brandon,Fuel cooler? Whats the story with that Ron?I see it mentions limits evaporation, any practical use on our boats?The mesh filters work very well for nitro. It also needs to be easily cleaned. Here Is a pic of the one made by Novarossi that I sell a lot of to customers. The price is great for an aluminum nitro fuel filter. I have also included the link as well. Thanks.
https://www.novarossi.us/collections/fuel-accessories
I agree with Ron, this type of in line filter works great, has a very fine screen mesh to keep out the trash, from the engine, I bought mine 12 years ago, mine is in a brass case, was labled as an airplane filter'The mesh filters work very well for nitro. It also needs to be easily cleaned. Here Is a pic of the one made by Novarossi that I sell a lot of to customers. The price is great for an aluminum nitro fuel filter. I have also included the link as well. Thanks.
https://www.novarossi.us/collections/fuel-accessories
Walt,O K I have to ask , How can a fuel filter change the temp of fuel, How does it take the heat out of the exhaust so that it does not
reach the fuel tank??? just asking>>>>
Walt Barney
Mic,I just don't understand how colder fuel helps performance? Colder fuel is thicker (% of oil)and I would think warmer fuel flows and atomizes better, and is easier to ignite. Other than a slower burn which might retard timing I see no advantage. Now colder air will allow more volume to enter the system but our air fuel ratio is much lower than a gasoline engine, so cold air induction not as large a factor.
Mic
hey ron,also have used them on my On-Road cars and have found no difference in performance or fuel mileage. but there is some benefit to having the fuel cool before the race.Mic,I just don't understand how colder fuel helps performance? Colder fuel is thicker (% of oil)and I would think warmer fuel flows and atomizes better, and is easier to ignite. Other than a slower burn which might retard timing I see no advantage. Now colder air will allow more volume to enter the system but our air fuel ratio is much lower than a gasoline engine, so cold air induction not as large a factor.
Mic
There are several theories surrounding cool nitro fuel and its performance/efficency boost capabilities. I have known so e racers in tbe past take this tbeory even further by keeping their fuel in coolers until right before their heat, when they would fuel their tanks. This exhaust cooler was originally designed for off road cars to stretch out fuel efficency by limiting evaporation. Many high nitro racers with cool fuel theories use them for a different reason.
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