Does coolant have to run thru the TB?

[mustangmarks]

Or could I cap them off?

 

[HISSIN50]

You could cap them.

 

[795.0pacecar]

Why would you want to? The coolant cools the hot EGR gases.

 

[HISSIN50]

Pacecar is right. I dont bother debating this stuff anymore - I just answer questions as they are asked (unless it is really bad).

But that is the reason (IMHO - there is debate on this for some reason) those lines are there. EGR gasses are 600*+, which can heat the intake up a good bit.

 

[DMAN302]

I would like to cap one and leave the other...can I do this (all for you JT )

 

[bubba-dough]

Like stated above. If you are still running the egr leave the coolant lines on. If no egr, yeah ditch them.

 

[vristang]

Those lines are there to cool the egr gas. Although you could cap them and not have too much trouble. I am somewhat ashamed to admit that I have done this however (back in my ignorance was bliss days). Most likely I suffered in performance, economy, and emissions due to that.

As far as the debate as to what the coolant lines are for...
I have read several papers, with authors from several of the various automakers that state that the purpose of the lines is to cool the exhaust gasses. That ended the debate for me.
Although heating the intake with exhaust would seem like a bad idea, there is most likely an economy/emissions gain there.

Good Luck mustangmarks

jason

 

[just4bob50]

When i bought my GT-40 intake used from a friend I got the intake, bbk 70mm tb, tb spacer, egr,iac,fuel rails and h2o lines all for $500. He had his coolant lines capped off on the TB. but i can only find 1 spot that was pluged on the water line that is between the TB and distributor. where is the 2nd spot at. I would like to hook it back up.

 

[Black1987Stang]

One is on the black heater hose piping and the other is connected to a screw in nipple that goes in the very rear passenger side of the lower intake.

 

[ninety15.0]

On my car the EGR valve is not attached to the exhaust in any place. Where exactly does the Egr pull the exhaust gas from, i know on the Sn cars its attached directly from the EGR valve to the pass side header....not on my car. So I capped my TB coolant lines b/c my lower intake didnt have the fitting for the rear coolant line. I have no problems and honeslty i think it makes the intake cooler. Think about it, you have 200 degree coolant running through your intake....im sure thats not going to help much for intake temps.

 

[bronco4x4]

The exhaust gasses come from one of the cylinder heads thru a passage in the upper and lower manifold. Unless you cap that passage where it starts, you shouldn't remove the coolant lines.

 

[JUCD 5.0]

Cap that junk, all the cars at our shop have capped them. IMO yah yah yah yada yada yada i think they cool the egr gasses, well i run 10's and most of the other cars at our shop blow my doors off and we capped that crap off a long time ago. I dont think they do much at all if any? Again just my .02 cents

 

[stangnutlx]

Cap that junk, all the cars at our shop have capped them. IMO yah yah yah yada yada yada i think they cool the egr gasses, well i run 10's and most of the other cars at our shop blow my doors off and we capped that crap off a long time ago. I dont think they do much at all if any? Again just my .02 cents

i agree i capped that crap off along time ago!!!!! more unnecessary BS!!!

 

[fox racer]

wat about cobra intakes? if those coolant lines were made to cool exhaust gasses, why wouldnt ford engineers use that same technology on the strongest stang?

ots because they dont do much, if you want, ditch them.

 

[ninety15.0]

thats exactly what i thought...i run a cobra style intake and lower didnt even have the passage so im not even worried. Stupid idea anyways...

 

[mustangramair]

I had to cap mine when i put on the explorer intake, i ran like that all summer without any problems.

 

[RacEoHolic330]

this topic is right up there on Stangnet's most beaten to death topics. I anticipate this being a very heated, multi-page thread. btw, mine have been capped for 2 years.

 

[Skoobie]

Me=Deleted EGR and capped lines. No problems what so ever. :SNSign:

 

[50bomber]

What about throttle shaft icing in like humid, cold clammy weather??? Wouldn't the cold, humid air rushing past the blade ice it? Kind of like aircraft engines?? I thought that this was the purpose of the coolant in there?

 

[HISSIN50]

50Bomber, if that was the point, it would make more sense to have the lines go through the TB itself. And I think that a heat-riser off the headers would be MUCH more effective. When it is cold out, coolant is cold too. And it takes a little bit for it to warm up as well (exhaust gets hot about as fast as anything, hence the heat risers being so common on so many cars).