intake mani

[eclipse gsx]

do we need the water lines that go to the intake manifold???? cus i wana take them off. and also the vacume lines at the top(2g intake mani)

 

[red_devil]

do we need the water lines that go to the intake manifold???? cus i wana take them off. and also the vacume lines at the top(2g intake mani)

The only area where water passes through is the throttle body. And I would keep them if you want good idle when cold.

 

[JLindback]

Why in the world would you want to take them off?

 

[gofer]

Why in the world would you want to take them off?

one less place for a dsm to leak coolant from... haha. id leave them hooked up, its more work than its worth since you won't be seeing any gains from it and like red devil said, you'll have a bad idle when its cold out.

 

[the_mork]

This mod is called an FIAV delete and some people say that they see gains because it keep intake manifold temperatures down but it will cause you some issues with idle and cold start. The proper way to do it is to take the throttle body off then take it apart (which is a total PITA) then install and FIAV blockoff plate then loop the coolant lines back.

As for the vacuum lines yes you can get rid of them but under certain circumstances you may get a CEL and you will definitely get a CEL if you take off the solenoids that they attach to. It should be noted that there will be NO performance gains from this and you will be in violation of the law.

 

[JLindback]

Haha yes one less place to leak, but no real reason it should leak.

 

[the_mork]

It isn't one less place to leak, you still have to loop the line back to the water pipe so you aren't adding any reliability.

 

[eclipse gsx]

ok this says allot.

This mod is called an FIAV delete and some people say that they see gains because it keep intake manifold temperatures down but it will cause you some issues with idle and cold start. The proper way to do it is to take the throttle body off then take it apart (which is a total PITA) then install and FIAV blockoff plate then loop the coolant lines back.

As for the vacuum lines yes you can get rid of them but under certain circumstances you may get a CEL and you will definitely get a CEL if you take off the solenoids that they attach to. It should be noted that there will be NO performance gains from this and you will be in violation of the law.

wow.. u lost me there

 

[the_mork]

Short answer is that it probably isn't worth it for a car that doesn't spend a lot of time on the track.

The vacuum lines I've deleted on my car but only because I run an intake manifold that doesn't have provisions for most of the parts that those lines used to run. If you feel like doing all of this then that is fine but it wont gain you much.

Search these terms if you need more information, FIAV, engine bay cleanup, vacuum delete, EGR delete, FPR solenoid.

 

[eclipse gsx]

Short answer is that it probably isn't worth it for a car that doesn't spend a lot of time on the track.

The vacuum lines I've deleted on my car but only because I run an intake manifold that doesn't have provisions for most of the parts that those lines used to run. If you feel like doing all of this then that is fine but it wont gain you much.

Search these terms if you need more information, FIAV, engine bay cleanup, vacuum delete, EGR delete, FPR solenoid.

ok this helps allot thanx

 

[the_mork]

I should also note that I do not have first hand experience with the CELs that come with removing vacuum stuff. I have a flashable evo8 ecu so I can simply kill any CELs that come up from removing emissions equipment, many people do end up taking off much of the vacuum related hardware on their cars just to clean up the engine bay and especially to remove the charcoal canister under the battery because it weighs about 10lbs.

In this case you should do a little bit more searching to know for sure but if you are set on having a cleaned up engine bay then what I recall is that you can remove every vacuum line that comes from the throttle body as well as the vacuum lines that go to the FPR solenoid. DO NOT leave the FPR without a vacuum line, simply take the FPR solenoid out of that loop. Also DO NOT touch any vacuum lines that come from the manifold itself except for the FPR solenoid line.

 

[eclipse gsx]

DO NOT leave the FPR without a vacuum line, simply take the FPR solenoid out of that loop. Also DO NOT touch any vacuum lines that come from the manifold itself except for the FPR solenoid line..


ok ok what do you meen by loop out???

 

[DSM4LIFE-AWD]

He means that if you remove the fpr solenoid just put the hose from the intake manifold on your fpr ... et voila !

 

[eclipse gsx]

ohhh.. ok