The coolant control valve came with the Motordyne spacer I picked up and I was wondering what exactly does it do? It looks like it goes inline the hose that brings coolant near the throttle bottle? I believe this hose brings hot coolant to the TB so that it doesn't freeze up? (or am i completely off here) So does the control valve open and close by itself? Thanks

 

it allows you to cut off the flow of coolant to the tb, which helps decrease temps at the tb. it doesn't close by itself. its open or close. if you live in low temps, leave it open. if you live in high-temp area, close it.

 

hey i have this too and wanted to know what it does also, whats the tb? does it actually provide cooler air?

 

TB = throttle body

a throttle body houses the throttle, which is the valve that opens and shuts when you press the throttle/accelerator pedal, which lets air into the engine. So when you hear someone call the throttle the "gas" pedal it's actually a misnomer.

 

oh so that's ur throttle? i didn't know, cuz on all other cars i've seen the throttle is actually a throttle looking thing and you can see it move when stepping on the gas. but i thought that the throttle let the gas in? it doens't? its the air? is that for all cars?

 

most folk just bypass that throttle body heater. it is only a prob if you are in like -30 or colder temps

 

ya, i didnt really bother to install mine. didnt feel like it was all that necessary!

 

They clearly aren't "necessary" but your plenum will run cooler with it.

If you have the valve installed all you need to do it try driving with it both on and off to feel the difference in plenum temperature.

Pumping hot engine coolant (@~205'F) through the aluminum plenum gets a lot of heat transfered through it.

 

felt a difference in temperature, no difference in power. however i dont race or track the car, where temperatures REALLY matter, so i can't really give a good review or anything. However, knowing how it works, i would say its worth it.

 

cool, i just wanted to verify that it did what I thought it did. I just completely bypassed it on my old civic. I'll probably install the control valve this weekend since I have it already. And just to sum it up for people doing future searchs

Basically there is a coolant hose that routes to your throttle bottle.
The coolant serves to warm up the throttle body so it doesn't freeze up in places where is snows..
For people that live in areas where it never reaches freezing temperatures (like me in SoCal ) it pretty much does nothing
The control valve basically is a "cleaner" way of bypassing the coolant hose rather then just plugging it up.

 

BTW. How did you get the Iso Thermal hooked up to your SSV?
Does it also have a TB heater built into it?