heat sink - hydro cowls

[Joe Warren]

If 30 degree increase over imbient temp decreases power?? example 80 degrees vs 110.. when the heat sink of the cowl reaches 180-200 degrees the max power will be long gone...

 

[Terry Keeley]

 

[stan simpson iv]

Damn it Terry...you are an artist with carbon. My dad and me have always just stood there and loved to look at your work and appreciate all the time and effort that you must have put into some of the pc.s you have made. Rock on!!!

 

[SayMikey]

Looks great but for heat racing its a water sucker.

 

[Terry Keeley]

Damn it Terry...you are an artist with carbon. My dad and me have always just stood there and loved to look at your work and appreciate all the time and effort that you must have put into some of the pc.s you have made. Rock on!!!

Please, my hat won't fit anymore, it ain't rocket science but thanks just the same.

 

[Terry Keeley]

Looks great but for heat racing its a water sucker.

Ya, my SAW boat, you'd have to be a bit more creative with a heat racer.

 

[Chris Wood]

I wanted to try sometime to tie into the water line. and wrap some tubing around the carb and try cooling the carb, in effect trying to keep the fuel COOLER without accually doing the ice thing..never did try it.. if I ever get back into it someday I might. kinda like heat soak in my car or any car.. once you get heat soak it is a MAJOR HP robber. maybe a MINI INNERCOOLER that the fuel runs thru. and you use the water t-into it and flow water thru the cooler.. I know there is little room in boats any more but you never know.

 

[Joe Warren]

I wanted to try sometime to tie into the water line. and wrap some tubing around the carb and try cooling the carb, in effect trying to keep the fuel COOLER without accually doing the ice thing..never did try it.. if I ever get back into it someday I might. kinda like heat soak in my car or any car.. once you get heat soak it is a MAJOR HP robber. maybe a MINI INNERCOOLER that the fuel runs thru. and you use the water t-into it and flow water thru the cooler.. I know there is little room in boats any more but you never know.

innercooler? the reason the DRY ICE air works on a Modified Supercharged Seadoo is that it helps make the air coming into the intake more dense. Air is not a problem cause it is a SUPERCHARGED ENGINE with a postive pressure on the intake. This may effect a Naturally aspirated engine differently?

 

[dwilfong]

When the fuel vaporizes it cools the incoming air. cool fuel will not vaporize as quick as warm fuel as it is more dense.

Ever try to start a high nitro mix in the winter?

Joe didn't you see this problem at time trials?

Could not burn the nitro and removed the water line from the boat?

Try heating the fuel and see what happens.

Smokey did this with a super heater off the ex and it flashed the fuel in to a vapor as soon as it was released in to the air stream.

 

[Joe Warren]

When the fuel vaporizes it cools the incoming air. cool fuel will not vaporize as quick as warm fuel as it is more dense.

Ever try to start a high nitro mix in the winter?

Joe didn't you see this problem at time trials?

Could not burn the nitro and removed the water line from the boat?

Try heating the fuel and see what happens.

Smokey did this with a super heater off the ex and it flashed the fuel in to a vapor as soon as it was released in to the air stream.

Yes seen it in Huntsville time trial several years with Mcgraw and Ed lacky setting the 20 hydro record. Bill just took out the BIC lighter fluid and pulled the top off it & put it into the fuel jug. it was about 32 degrees when the record was set. the 1st run it came back with the carb iced up solid.....

 

[Joe Warren]

The methanol is the refergant for our fuel. if you decrease the Nitro percentage & and maintain the same oil content ?? You have to put more methanol in to make the gallon full. Small bore engine love the high Nitro & Heat. the larger Bore engines make more power out of the corner with High Nitro 60 plus percent. But they are much harder on parts. Especially piston & sleeves.

 

[dwilfong]

I don't know if it would make a big difference or just complicate every thing?

but it would be easy to try. just run the fuel line threw a water cooling system like what thy use on the header or a cooling plate that is available for some eng.

 

[anthony_marquart]

now we are talking about heating the fuel?

 

[tnrcboatracer]

I wanted to try sometime to tie into the water line. and wrap some tubing around the carb and try cooling the carb, in effect trying to keep the fuel COOLER without accually doing the ice thing..never did try it.. if I ever get back into it someday I might. kinda like heat soak in my car or any car.. once you get heat soak it is a MAJOR HP robber. maybe a MINI INNERCOOLER that the fuel runs thru. and you use the water t-into it and flow water thru the cooler.. I know there is little room in boats any more but you never know.

innercooler? the reason the DRY ICE air works on a Modified Supercharged Seadoo is that it helps make the air coming into the intake more dense. Air is not a problem cause it is a SUPERCHARGED ENGINE with a postive pressure on the intake. This may effect a Naturally aspirated engine differently?

I think that you'll see that the dry ice on the outside of the air box, not the inside.....The CO2 gas does not mix with the incoming air charge in this application. Yes, it is a poor man's intercooler.

 

[dwilfong]

The only problem I see is the gain worth the effort?

So lets make a air box and carry around dry ice in a cooler. now every time you test you need to get some dry ice.

Really you are going to do this?

Then how much heat transfer will you get with the air rushing thew a hole surrounded by dry ice?

OK lets build a inter cooler and run water from the rudder cooled with ice in a cool can thew it.

This may work?

Now how much weight will all this bing to the table?

will it pull its own weight in the equation?

Just a few thoughts.

http://www.perrypumps.com/nitro_page.htm

 

[dwilfong]

now we are talking about heating the fuel?

This was talked about before. Never had a chance to try it. Just not enough time in the day to do every thing.

It is on my bucket list.

 

[anthony_marquart]

Just run the fuel through one of those old OPS exhaust coolers, then to the needle.. or some brass around the exhaust manifold.. I would like to see this.. but I think I would be afraid to set it up on one of my engines!!!!

 

[dwilfong]

Just run the fuel through one of those old OPS exhaust coolers, then to the needle.. or some brass around the exhaust manifold.. I would like to see this.. but I think I would be afraid to set it up on one of my engines!!!!

It won't blow up.

worst case it will not work.