Vararam: change red coupler hose

[mike25]

Originally Posted by Todd3544

I am in the same boat. I called them the day I got my 12(Sep 13th) and informed them the current Vararam did not fit. They said "uh oh"!! Said it would take 30 days to get the new one out. Called them about two weeks ago, said it would be another month. Still waiting.....

Yeah ive been less than impressed...may go with this new era otr.

[cactuseater]

Originally Posted by mike25

Yeah ive been less than impressed...may go with this new era otr.

I was looking at those too...holy crap they are pricey! I really like the gunmetal grey unit, nice and clean.

[mike.nite]

^^ And they even have a black coupler hose and a angular nipple!

[mike.nite]

My only concern by going with the RX breather to replace the vacuum hose from the vararam coupler is:

Where does the catchcan get the vaccum from?

[2SSRS@Gen5diy]

Originally Posted by Todd3544

I am in the same boat. I called them the day I got my 12(Sep 13th) and informed them the current Vararam did not fit. They said "uh oh"!! Said it would take 30 days to get the new one out. Called them about two weeks ago, said it would be another month. Still waiting.....

What is new in the 2012 that the unit will not fit it.?

[rolnslo]

Originally Posted by 2SSRS

What is new in the 2012 that the unit will not fit it.?

I seem to remember that the radiator design changed ever so slightly and in the process, they moved the radiator cap over a bit. Enough that it would no longer fit within the space that Vararam allocated for it in the intake.

[mike25]

Originally Posted by rolnslo

I seem to remember that the radiator design changed ever so slightly and in the process, they moved the radiator cap over a bit. Enough that it would no longer fit within the space that Vararam allocated for it in the intake.

Bingo.

[mike.nite]

Originally Posted by mike.nite

My only concern by going with the RX breather to replace the vacuum hose from the vararam coupler is:

Where does the catchcan get the vaccum from?

Anyone?

[2SSRS@Gen5diy]

Originally Posted by SC2150

The vacuum for a catchcan comes from the intake manifold itself, a catchcan simply installs inline betweek the crankcase vent & the intake manifold vacuum fitting. The line on the VRam is the fresh air line (clean-side) so it is not part of the vacuum for crankcase evacuation. What I dont like about the VRam connection is it is a 3/8" barb fitting that protrudes app 1" into the intake air stream causing a small amount of disturbance. We replace it with a 1/4 NPTx 3/8" barb 90* fitting if retaining it.

If you use the RX checkvalved breather you just eliminate that line and there is no path for oil ingestion on the clean side.

Originally Posted by mike.nite

Anyone?

^

[mike.nite]

Originally Posted by SC2150

The vacuum for a catchcan comes from the intake manifold itself, a catchcan simply installs inline betweek the crankcase vent & the intake manifold vacuum fitting. The line on the VRam is the fresh air line (clean-side) so it is not part of the vacuum for crankcase evacuation.

If you use the RX checkvalved breather you just eliminate that line and there is no path for oil ingestion on the clean side.

If it is not part of the vacum for crankcase evacuation:
Why does the catchcan even come with a fresh air inlet/clean-side?

What's the benefit from this clean-side inlet for the catchcan?

[ssmike]

The catch can is installed in line with the dirty side between the valley cover and intake manifold. The oil filler breather takes the place of the clean side vacuum hose to the throttle body. Hope this helps!

[mike.nite]

Got you. But: If the catchcan is inline with the dirty side and the clean side can be sealed with a rubber cab - why do the even make a clean side inlet on the catchcan?

I just want to know the purpose of this inlet before I seal it.

[Teamspeed]

Originally Posted by mike.nite

Got you. But: If the catchcan is inline with the dirty side and the clean side can be sealed with a rubber cab - why do the even make a clean side inlet on the catchcan?

I just want to know the purpose of this inlet before I seal it.

You don't cap anything on the catchcan. There are two distinct different lines. There is a dirty air line going into the intake, this is where the catch can goes, inline with that. Then there is a separate clean air line, that is what gets capped at both ends, and the breather installed.