Throttle body coolant lines
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 318
Likes: 0
From: Wisconsin
Throttle body coolant lines
This summer when it warms up some more, I was thinking about pulling off the coolant lines to the throttle body and connecting them together. To anyone thats done it before, what size pipe did you use to connect the coolent lines with? By the way, my Bronco is a '92 with the 5.0. Thanks for any help in advance.
Posting Guru
Joined: Jul 2002
Posts: 1,147
Likes: 1
From: East Coast
That sounds pretty simple, the hard part is what to do with the tb fittings. Run a hose between the two? I don't know if air flowing through would hurt or not.
I've thought about it myself, but I decided to leave mine alone.
I've thought about it myself, but I decided to leave mine alone.
Senior User
Joined: Jan 2003
Posts: 160
Likes: 0
I did the bypass on my 89 351W and noticed better throttle response, and more HP. Not a lot of HP, but noticable! I bought some of the caps that go on the throttle body from autozone to plug the ports. Then I just got a sleeve type tube and clamped the two hose ends on it....HP!
Tuned
Joined: Oct 2002
Posts: 466
Likes: 0
From: South Central KENTUCKY
Why? Just wondering why yall do this mod, what is the gain, or should i say how does this produce a gain? Am am curious, this is a mod i could do very easy at the yard, but would like to know why, as i ussually figure the engineers put it on there for a reason, right?
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 318
Likes: 0
From: Wisconsin
By removing the coolant lines to the throttle body, the air coming into the engine won't be heated up like it was when the hot coolant was running through. By having the intake temperature cooler, the air is more dense, so more air comes into the cylinders resulting in more power. The reason the coolant lines are there to begin with is so in winter, the throttle body won't freeze up. So for the summer when its warm, I'd like to remove them and maybe get a little more power, but I need to know what size pipe is used to put the two coolant lines together.
Senior User
Joined: Dec 2003
Posts: 404
Likes: 0
From: Groton, CT
I removed my coolant lines altogether. Just cut them off at the source, put on a short length (2") of fuel line hose with a plug in it. Hated having my engine compartment cluttered up with those coolant lines that were no longer used. Everything has been working great for two years now and no problems in the winter. I live in Connecticut, so unless you live in a severe winter wonderland, you will probably never miss them.
Hope this helps.
Hope this helps.
Senior User
Joined: Sep 2003
Posts: 436
Likes: 1
From: North Carolina
i see one coolant line going into the top of the tb. Is the other one the line directly opposite of it on the bottom of the tb? This is on a 351.
Trending Topics
Thread Starter
|
Senior User
Joined: Mar 2003
Posts: 318
Likes: 0
From: Wisconsin
Thanks for the help, BigRedBronc, I will probably do what you did to try and unclutter the engine compartment. I just have one more question, when you disconnect the coolant lines is coolant going to spray out, or if you let the vehical sit for a day will the coolant drain out of the lines so it won't spray out?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Tuned
Joined: Mar 2002
Posts: 250
Likes: 0
From: Grants Pass, OR
Posting Guru
Joined: Jul 2002
Posts: 1,147
Likes: 1
From: East Coast
WAIT WAIT WAIT, hold the phone! Lets think about this for a second, those lines both tap off of the heater hoses, right? Now, isn't there a valve that shuts off the water through the heater core when the heater **** is moved all the way to cool? If there is (I think there is, anyway) then when you have the **** turned all the way to cool, water won't be flowing through the heater core, and thus, no water will flow through the TB.
Now, even if I'm wrong (me wrong?
j.k. 
) then there is a better way! If you don't have a valve that turns off the water to your heater core, install one! Instead of just turning off the water to the TB, and having the hot water still circulate into the cab and radiate to make it hotter in there, just shut off the water as soon as it comes out of the intake, so no hot water will flow through the heater core or the TB, with one valve, and no extra hoses or plugs. When it starts to get cold enough that you want your heater, then you have your heat to the TB and don't have to worry about it. And no inspection station will ever give you a hard time about a heater valve.
Last edited by nickmobile67; May 8, 2004 at 05:22 PM.
Senior User
Joined: Dec 2003
Posts: 404
Likes: 0
From: Groton, CT
Nope, lines do not tap off of the heater hoses or have anything to do with coolant flow through the heater core. The feed line comes directly from the radiator, through about four feet of metal and rubber lines. The other end attaches to the temperature sensor tree at the intake manifold. Even if you completely plugged your heater hose, coolant would still flow through the throttle body.
Topfisherman, as far as the coolant leaking while you are doing this little project, just drain your radiator about halfway and you shouldn't have any problems.
Topfisherman, as far as the coolant leaking while you are doing this little project, just drain your radiator about halfway and you shouldn't have any problems.
Senior User
Joined: Sep 2003
Posts: 436
Likes: 1
From: North Carolina
i did mine today with very little coolant leaking. If i would have plugged them and been more careful there would have been no leak at all. A good idea is to take them off real slow and then temporarily plug them with something which i didn't plug them unitl i tilted a hose down and a little spilled out.
Posting Guru
Joined: Jul 2002
Posts: 1,147
Likes: 1
From: East Coast
Sorry, I was going by memory. Just looked at it, line goes in from intake, out at the top into the return heater hose. Although, that dosn't mean you couldn't plug the intake fitting, put a T in the inlet heater hose, run a hose from there to the inlet on the TB, and leave the outlet going to the return on the heater hose. I don't think it would make a difference for the heater. Just a thought.