Fox Body Vacuum Lines

[Lone Star Performance]

I have a 90 LX. I want to run the least amount of vacuum lines as possible. The car has no A/C, no smog pump, no egr. The car currently has the tree, but no other vacuum hoses at all. Can someone help me or point me in the right direction of how I need to run it all?

Thanks,

Scott

[91CoupeMike]

I have a 90 LX. I want to run the least amount of vacuum lines as possible. The car has no A/C, no smog pump, no egr. The car currently has the tree, but no other vacuum hoses at all. Can someone help me or point me in the right direction of how I need to run it all?

Thanks,

Scott

I go from the booster, to a tee, 1 hose down to the pcv and the other goes to the manifold. Then there the hvac stuff. But that's all you really need.

[White90GT]

HVAC stuff? not needed if you don't have any smog stuff on it.

Line from Fuel pressure regulator to small tube on intake
Line from intake to vacuum tree on firewall
Line from vacuum tree to PCV valve
Line from vacuum tree to brake booster

All others capped off I believe if you don't have a/c, EGR, or any of that stuff.

[Lone Star Performance]

Awesome info! Thank you

[Mach1]

can you pull EGR off w/o any other issues from the computer?

[Lone Star Performance]

From wht I understand it needs a tune for it, I plan on a tune anyway as this will be a nitrous car

[91CoupeMike]

can you pull EGR off w/o any other issues from the computer?

No, I know this because I had a broken egr vac line and it would get shitty gas mileage. Fixed the line and the mpg came back.

Will it change wot drivability? Nah

[91CoupeMike]

HVAC stuff? not needed if you don't have any smog stuff on it.

Line from Fuel pressure regulator to small tube on intake
Line from intake to vacuum tree on firewall
Line from vacuum tree to PCV valve
Line from vacuum tree to brake booster

All others capped off I believe if you don't have a/c, EGR, or any of that stuff.

For the heater/ac unit in the car. It's not part of engine vacuum but it gets in the damn way.

[Mach1]

No, I know this because I had a broken egr vac line and it would get shitty gas mileage. Fixed the line and the mpg came back.

Will it change wot drivability? Nah

thats prob just because it was a vac leak

[Lone Star Performance]

What about the heater hoses? Do I just cap off where all the heater hoses would run the. Since I don't have the heater core
Would I just need upper/lower radiator hoses and bypass hose?