Cool can installation - Page 2

chris ok · 06-30-2009, 12:42 PM

toyota years ago went to dead head fuel systems in their vehicles.
they believe that fuel returning to the tank is heated and heats all the fuel, then changinging the emissions and character of the fuel, bringing down the power of the engine, and increasing emissions. they use a stepper style pump, based on throttle valve openning and load on engine to adjust fuel pressure needed.
I personally like the idea of a cool can on the return side cooling the fuel in the tank thus cooling the fuel being delivered.
I've also heard of dry ice in the tank, thanks ed o'brien for reminding me. but don't know how it affects the fuel, doesn't it smoke out then, thats my question. sure would cool it nice tho.

House of Darts · 06-30-2009, 04:28 PM

Dry ice in the fuel cell will change the dielectric content of the fuel. As the dry ice evaporates the CO2 will, to some degree, go into solution with the gasoline inside the tank. That can throw off the readings on a fuel check. If you still intend to do this just remember that there will condensation in the fuel cell. Your are diluting the fuel again and this will change the dielectric and you will be running H2O plus the fuel.

Tom Moock · 06-30-2009, 05:50 PM

House of darts, I saw dry ice put in fuel at Topeka national event, class run off in super stock, must have passed fuel check, because he won class. Tom

SPS · 06-30-2009, 06:21 PM

OK, from first hand experience:
A number of years ago in my SS/BM car, I built a cool can in the trunk on the return/bypass side of the pump.

Was told by NHRA tech to take it off. There is a rule (written or un-written) that says the cool can must be in the supply line and within a certain distance of the carb. In the engine department.

I thought it was a good idea, and I believe it worked too, but it went away.

FJ

07-02-2009, 11:49 PM

Bruce Bacholder told me today that the fuel pressure regulator and cool can have to be at least 6 inches FOWARD of the firewall. SO that ends that. Thanks to all who replied

Quote:

Originally Posted by SPS

OK, from first hand experience:
A number of years ago in my SS/BM car, I built a cool can in the trunk on the return/bypass side of the pump.

Was told by NHRA tech to take it off. There is a rule (written or un-written) that says the cool can must be in the supply line and within a certain distance of the carb. In the engine department.

I thought it was a good idea, and I believe it worked too, but it went away.

FJ

06-30-2009, 12:42 PM	#11
chris ok Senior Member Join Date: Jul 2002 Location: Long Island, New york Posts: 592 Likes: 131 Liked 46 Times in 29 Posts	Re: Cool can installation toyota years ago went to dead head fuel systems in their vehicles. they believe that fuel returning to the tank is heated and heats all the fuel, then changinging the emissions and character of the fuel, bringing down the power of the engine, and increasing emissions. they use a stepper style pump, based on throttle valve openning and load on engine to adjust fuel pressure needed. I personally like the idea of a cool can on the return side cooling the fuel in the tank thus cooling the fuel being delivered. I've also heard of dry ice in the tank, thanks ed o'brien for reminding me. but don't know how it affects the fuel, doesn't it smoke out then, thats my question. sure would cool it nice tho.

06-30-2009, 04:28 PM	#12
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	Re: Cool can installation Dry ice in the fuel cell will change the dielectric content of the fuel. As the dry ice evaporates the CO2 will, to some degree, go into solution with the gasoline inside the tank. That can throw off the readings on a fuel check. If you still intend to do this just remember that there will condensation in the fuel cell. Your are diluting the fuel again and this will change the dielectric and you will be running H2O plus the fuel.

06-30-2009, 05:50 PM	#13
Tom Moock Senior Member Join Date: May 2004 Posts: 801 Likes: 1 Liked 10 Times in 6 Posts	Re: Cool can installation House of darts, I saw dry ice put in fuel at Topeka national event, class run off in super stock, must have passed fuel check, because he won class. Tom __________________ Tom Moock 5704 STK

06-30-2009, 06:21 PM	#14
SPS Member Join Date: Jun 2004 Location: Cayuga, Canada Posts: 298 Likes: 37 Liked 3 Times in 2 Posts	Re: Cool can installation OK, from first hand experience: A number of years ago in my SS/BM car, I built a cool can in the trunk on the return/bypass side of the pump. Was told by NHRA tech to take it off. There is a rule (written or un-written) that says the cool can must be in the supply line and within a certain distance of the carb. In the engine department. I thought it was a good idea, and I believe it worked too, but it went away. FJ