Rb20 Heater Hose Delete

[daninchainz]

Hi, am looking at getting rid of heater hoses on my car. I am gonna buy a Franklin Engineering heater hose delete kit but I noticed that the bottom pipe near the thermostat outlet was not there (the small one which goes to the intake manifold) just checking if anyone knows why or if there’s any pros/cons 

I have pictures to explain 

 

 

[daninchainz]

Do I just cap the pipe on the manifold? 

[GTSBoy]

It's a bypass so that coolant flows through that runner in the manifold (which is intended to kill the risk of icing around the injectors) via one end of the heater circuit. If you just cap that end of it you will have problems with bleeding the coolant system unless you disconnect the other end (at the back of the manifold).

You have options, including working out how to maintain that connection with the Franklin kit. You'll probably find that Franklin really only expect people to use their heater bypass on cars that also have aftermarket manifolds or other heavy mods that mean they either don't have the manifold coolant run or have worked to eliminate it.