I am doing some stuff to my engine bay and want to replace the S shaped hose in the attached PIC. I was planning on using a stainless hose and some anodized clamps. Why is it shaped like and S?? is there any reason I cant run a straight run to it? Opinions please?? im replacing/sleeving abunch of hoses and need to know about this.

**EDIT**

OK i just searched some more and it seems to be a brake booster vacuum line with a check valve.. I Guees i am going to sleeve the hose with SS would it hurt it to remove the insulation thats on the bend nearest the plenum?

 

First you make an s

then, you make another s.

let's go ahead and add a beefy arm for good measure.

 

LOL. Does seem a little long to get from one place to another. But from a design point the “play” is smart: lets you move the hose to get under it.

 

It's shaped that weird way otherwise it would pinch itself closed, especially when the engine bay gets hot. Plus it allows for engine movement, otherwise it would come off and or be stressed, if too short.

If you're thinking of switching that hose out all together, keep in mind it has a check valve built into it.

 

you can buy the valve from nissan. the cosworth manifold replaces that hose but comes with a new valve.

 

replace it with more of a "c" shaped hose so it still has a little play