Throttle Body Coolant bypass

[89IROC&RS]

personally, i wouldnt think it was really worth it, and ts pourpose is to warm the engine up better on cold days, and lower emissions. but thats cuz im a yella belly when it comes to this, ive got this crazy idea that the factory knows what its doing

[Dober89]

Well I could it made a big difference in the temperature. I dont drive my car in the winter anyways so im not worried about it freezing up or anything. Before I did it, after going on a long drive the plenum was boiling hot. After I did the bypass though it was quite cooler and you can actually hold your hand on top without having it melt

[SHannonh]

OK, here goes. The Throttle body coolant is there to keep the blades from freezing open or shut in sub zero temperatures. No car has ever had this happen, but it prevents a lawsuit in case someone does.

As long as your car is a 97, you simpley unhook the hose form the driver side of the throttle body. Remove the hose completly between the passenger side TB and the coolant line coming from the back of the head. Route the hose that went to the driver side to the coolant line coming from the back of the head.

You do not need to plug the open line on the TB as they lead nowhere.

Just unhook the drivers side one and plug it into the line coming from the passenger side heads. Simple.

www.ws6.com shows about a 4 RWHP gain on a car using this.

-Shannon

[Chevyracincamaro]

i didnt notice a huge difference when i did it, ofcourse nothing produces a huge difference on the 3.4. in the winter, it does take the engine a little longer to warm up, but nothing major. i generally let my car sit for a couple minutes anyways just to let everything start flowing. the one thing that would say though is if you have a 160 thermostat dont do the bypass. in the winter, its a real hinderance getting the car warmed up and keeping it warmed up...