Is it important to have the coolant lines hooked up to the BAC?

Evan

 

i ran mine fine without. don't you take those out when you do the tb mod anyway?

 

Not sure, i haven't done the TB mod...

 

oh... i think you do...
but like i said... it works fine without man... i'm runnin without um right now

 

ok, cool. Thanks man..

I'll run some new lines in due time.

Evan

 

dude, just do the tb mod... its a good thing to do...

 

eh i thought that there was a thermowax in the BAC that when warmed up closes the valve more. SO in other words, you should have a higher idle with an unheated BAC valve.

correct me if im wrong.. im sure reted will.

 

Search. The thermowax & BAC are two different things, both raise the idle but for different reasons. The BAC raises the idle when your accessories are running or any other reason that draws heavily on engine RPM with the throttle plates closed.

 

The answer to the original question is no. The BAC valve is nothing more than a convenient place to support the coolant lines from. You can remove the coolant hose connection from the BAC's body by undoing the two screws. This will not effect the BAC valve at all.

And as mentioned above, the BAC valve and thermowax are two different things that have no effect on each other.

 

I was under the impression that the BAC possibly opened up under cooler collant temperatures to aid in warm up. Although it sounds logical it maybe untrue, id just look it up, but it wont hurt anything, hell you can take the BAC off even........

 

The BAC valve is opened by an electric solenoid. Coolant has nothing to do with it's operation. You're getting confused with the thermowax.

 

OMG, are you serious! I am gonna get rid of that freaking coolant line post haste!

 

If you still have the thermowax in place, removing the hose would be a bad idea (permanent high idle). If you don't, why is the hose still there? Nothing will be running through it.

 

At least on my car I did the full TB mod. However, I just took the coolant hose and looped it from the back of the waterpump to the block. Just one long hose. Time to block that off.