intake boots

[prototech]

has any one ever replaced the factory intake boots with hi-temp silicone reinforced hose?

 

[CDegner]

yep!



Carl

 

[CDegner]

You want details? Don't ya just hate a smart a$$?



18" of material from PDR. cut into two 4" pieces and two 5" pieces. Somepeople have a really hard time getting it on, mine went on pretty easy. The rest of your truck may rust away but that silicone hose will still be there.



Carl

 

[prototech]

thanks CDegner, did you notice any perfomance differences? looks to me like stock boots could cause turbulence, getting rid of the convoluted boots and having a straight shot might improve air flow?

 

[BushWakr - RIP]

I don't think that you will see any measureable performance difference in terms of flow resistance. The system is a pressurized one, not a vacuum system.

Since it is pressurized (by the turbo) the contour of the IC boots is not your biggest worry.

The one area that is a "vacuum" of sorts is the system starting with the air filter and piping to the inlet of the turbo compressor housing. The air filter and airbox does benefit from opening them up to allow better flow and less resistance.

Other things that will have a cumulative effect are things such as the exhaust manifold inlets/outlets/runners, inlet to the turbo exhaust housing/exhaust manifold joint, head porting, and so forth.

The silicone boots do not stretch as much as the OEM's, nor are they as prone to developing holes or slipping off over time.

We sell alot of the aftermarket boots because of the significant quality upgrade they provide and their ability to hold higher pressures reliably, especially when used in conjunction with the HD spring clamps.



Pastor Bob. .

 

[1stgen4evr]

system turbulence

[The system is a pressurized one, not a vacuum system.

Since it is pressurized (by the turbo) the contour of the IC boots is not your biggest worry. ]





Definitely not your biggest problem but I remember from fluid dynamics that the pressurized part doesn't change the turbulence factor. But I would like to have a little more input from someone with real world experience here.



Looking at a post regarding the use of a Ford intecooler, there seemed to be some thought that the larger capacity of the Powerstroke cooler would contribute to a little HP increase.



When Mack came out with turbo charged engines, they built a different intake manifold for streamline air flow. The way our engines are regarding the intake, they can't be streamlined. Would a larger intake side tube be of any use here in that it would provide a place for charger air to be accumulated on the intake side?



Is turbulence bad for the diesel combustion system? Seems that turbulence is good in the gas engines.



Bushwacker, you seem to be the most knowledable. Any thoughts?



Thanks



1stgen4evr

James McPherson

 

[JLEONARD]

the pressurized part doesn't change the turbulence factor

I agree... . plus I know that there is a pretty good reduction in flow volume when measuring water flowing thru hoses. Water and air are both fluids so I would think it applies to air.

Therefore I will say that a smooth hose system both from air cleaner into the turbo and smooth from turbo to manifold is better.

How much better? I don't know, but if we're convinced that "smoothing out" a turbo exhaust housing will help, I think we must also agree that smoothing out air intake is also important.



There... stuck my neck out... . comments???



Jay

 

[prototech]

Hey, great info, thanks for lettin' me pick your brains. I'll have to see for myself, I'm goin' to swap 'em out next chance I get.

I just put my 16cm housing on this last Monday, wow!!! what a difference.

Prototech