I read on this forum about disconnecting the hoses that hook up to the throttle body. I plan on doing this. Does anybody know what would happen if i hooked up a cold water line to go through the throttle body to replace the hot ones? Would this cool the air and make it run better or just screw up an expensive part? I live in south texas so i'm not worried about it freezing (everyday this week has been at least 100 degrees, and the coldest we ever get in the winter is 60 degrees, maybe 50).

 

Where would the cold water come from?

 

after thinking about it i realized that the water from the radiator would surely make it hotter than if i just left it alone.

 

beleive it or not the coolant lines do keep the TB cooler even with 190 degree coolant. The EGR valve throws hot exhaust back into the intake right behind the TB at about 220-260 degrees. So If I was you I would not fix something that is not broke. Doing so will warp and possibly crack the aluminum TB...Just a possibility Hope this helps.

 

show us the rock hard evidence that its cooler with the line attached

 

It has already been done and posted on this board as-well-as been backed by some of Fords top techs. The lines keep the TB from freezing up in the winter with condensation inside the intake and also cools it from heat transfer between the TB and the Upper intake were the EGR Valve is located. It has been tested with infrared and thus been proven.

 

Did my own test on this very subject using a magnetic temp gauge ----in hot humid weather . Results show tb is cooler with the lines not hooked up , course this is in the good ole south where humidity levels get too dern high and the sun bakes every thing. TR

 

https://www.ford-trucks.com/forums/s...light=coolant+

 

Here is one of the tests as posted and accomplished by redrumybronco...

Temperature tests were conducted at idle (800 rpm) at normal operating temperature with a 160 degrees F thermostat on a 5.8 L engine with coolant lines to TB disconnected:

1. radiator cap, dead center: 52 C (125.6 F)
2. radiator top, between fins: 55 C (131 F)
3. outer TB, on air inlet tubes: 56 C (132.8 F)
4. inner TB, inside vacuum intake between air inlet tubes, plugged with finger behind temp sensor: 61 C (141.8 F)
5. EGR inlet tube, pre EGR valve: 62 C (143.6 F)


Tommorow I will connect the coolant lines back up and re-test and I predict that the inner TB temperature will be cooler by about 10 degrees C as it seems that without the coolant the temperature is almost the same as the EGR inlet tube and not the radiator temp.

Well here are the results with the coolant hose connected to the TB.

1. radiator cap, dead center: 45 C (113 F)
2. radiator top, between fins: 66 C (150.8)
3. outer TB, on air inlet tubes: 50 C (122 F)
4. inner TB, inside vacuum intake between air inlet tubes, plugged with finger behind temp sensor: 57 C (134.6 F)
5. EGR inlet tube, pre EGR valve: 73 C (163.4 F)

The temperature ranges varied due to a change of ambient air temperature and altittude difference (500') But you can clearly see from this that the EGR inlet tube was running hotter and the inside TB temperature is much cooler than that and even than that of the first test. The verdict, keep the coolant lines connected as that actually cools the TB from EGR temp.


I had this information looked at by my brother which is a ford tech and he replied it is a good mod for high HP street machines but trucks see no real affect but slightly better throttle response.

 

I have heard this mod by many of folks, and sites. I have seen more evidence of this mod running a cooler TB. than of it doing harm. But, also, it may depend on the climate, humidity, heat, ect.
I would say, doo the mod see what happens, if it runs hotter, than just simply reverse the mod, thats what makes this mod nice.

 

I've done the test with the infra red temp. meter as well and it does run cooler with the lines hooked up. Its interesting that those that have done the mod with out checking to see of its cooler feel their truck runs better and those that have done the test with the meter have noticed no improvement in power when disconnected. Its like those stupid spacers people buy to place behind the throttle for more HP, thats right they don't work but those that buy them swear they do. We just can't measure the performance with todays technology?? In a big *** bronco if you can feel a 5hp change either way than your from another planet, 10 or 20hp you might feel but not the 2, 3 or 5hp people are saying they are gettimg with any of these mods.

You want HP than start by taking out some cash and buying the parts that actully make a differance, HP doesn't come cheap and stop fooling yourselfs with these little mods. that have no real documented proof they work other than someone saying "I can feel the differance it made to my 5000lb truck, must be 3 or 4 hp gain!" Come on!! Lets get real!

 

im not saying it works or not, but u see, i asked show me the solid proof, and there is none. Its not a fact that the tb runs cooler with the lines attached OR the lines off. See, people come up and say, "OH I TESTED IT, ITS COOLER WITH THE LINES ON", and then the other guy over here says, "I TESTED IT AND IT RUNS COOLER WITH THE LINES OFF". Just like many issues, its your opinion & your test, not a fact.

 

I say someyone needs too run a dyno test, while with an temp guage on it.

 

I'm with bossind, all of these little modifications that "add a couple of horses" remind me of the J.C. Whitney catalog adds claiming to increase your gas mileage by 10-15%.

My brother bought and installed every item in the catalog that claimed to increase his gas mileage. We added up all of the percentages and his gas mileage increased 136%. In fact, the gadgets worked so well and his mileage increased so much his fuel gauge actually indicated his tank was filling up as he drove the truck. He had to carry jerry cans with him to empty the gas tank every 100 miles or so to keep his tank from over flowing.

Bottom line. Be skeptical of the 'add a horse here and there' claims.