header problem

[comancheman]

i am runnin a pacesetter header on my 90 comanche. Today when i put my air box in i realized theres no place for the tube that runs from the airbox to the stock exhaust manifold, do i definetly need this in order for it to run properly. what exactly does this tube do?

[DirtyComanche]

Doesn't do $#!&.

 

 

Supposed to aid cold start up. With EFI. Right.

[comancheman]

i thought it had something to do with cold start but on a cold start the manifold is cold to0 so whats the point?

 

if it runs without it who cares!!!!

[jeepthing07]

when i put a rusty's air tube on my MJ i threw that heat riser tube and shield away

[Oizarod115]

yeah, its there for the cold start up stuff, but who cares

 

(especially when you live in GA :brows: )

[Pete M]

I believe "cold" in this instance is defined as anything below the engine normal operating temp. I know it's warm in Georgia (my sis lives there), but it's not quite that warm. :D

[feerocknok]

I believe "cold" in this instance is defined as anything below the engine normal operating temp. I know it's warm in Georgia (my sis lives there), but it's not quite that warm. :D

Global warming.

 

It does help you truck heat up faster, but as everyone said, doesn't really matter.

[DirtyComanche]

Doesn't make much difference at all. I eschewed mine pretty much when I bought it. First winter I had it, the mercury was hitting -40. Still warms up in decent time (given the conditions).

[Pete M]

It's for emissions more than anything else. Gas burns more efficiently at hotter temperatures, and so the faster it gets hot, the better.

[Oizarod115]

It's for emissions more than anything else. Gas burns more efficiently at hotter temperatures, and so the faster it gets hot, the better.

 

 

so you think i should put the old radiator back in and run it at 260 again? :rotf: :brows:

[Pete M]

It'd be good for the gas burning, but not good for the engine componants or fluids. Auto engineers have to find a balance.

[ORCA]

I ditched mine awhile back and my truck's always started fine(even in the winter here - where it gets below zero at night) If you do live in a cold climate you should allow the truck plenty of time to warm up, the more time the merrier.