All Small Six Blowby Catch-Can Plumbing ?

[powerband]

Blowby Catch-Can Plumbing ?

always with forced induction but also with HiPo engines crankcase evacuation or other means than PCV is needed for peak cylinder pressures.

* need to install 'catch-can' on 250 Maverick - typical catch can uses side entry large filter vent on top. no room at typical top of VC PCV/Vent locations for catch can and filter vent - no clearance anywhere else under hood...

currently runs two open vents on VC and large tube/vent from crankcase's mechanical fuel pump block-off plate. ignition side is busy and exhaust side heat limited.


** ? FOR CLEARANCE - CAN CATCH CAN BE LOWER THAN VC TOP PORT WITH CONNECTING HOSES ??

sorry for caps ...



FP boss vent and SC return to Oil Pan ignition side



VC - CK vents Maverick hood is lowest and 250 is tallest small block six....

. .

thanks

 

[drag-200stang]

I cannot see where it would be a problem as long as the starting points are positioned and baffled to not pick up and carry to much oil. May have to drain more often.

 

[65coupei6]

Why don't you run a catch can without a vent?

 

[drag-200stang]

Why don't you run a catch can without a vent?

Can you expand on this some. How would the plumbing go. I think that the point is that a boosted engine needs a lot of venting unless you have the state of the art bore finish equipment and technique that is not really available to us. Oh, they say they will do it but that is not what you will get.

 

[powerband]

Catch Can Plumbing redux ..


. . .

we'll see (literally) how it works out before I get fancy silicone tube..

hav e fun

 

[bubba22349]

Hi Powerband, where is the Hose on the Driver's connecting too?

 

[powerband]

hard to photo - there's a block off plate on mechanical FP block boss with tapped port and 3/4 nipple to the 3/4 tube which passes behind VC along firewall to Catch Can by heater motor. Site is OEM location of charcoal canister fuel tank return on Maverick. First I tried using OEM canister as a catch can but lacks internal Aluminum baffling to help condensate settle.

pic down to FP boss on block with port to tube:



with hyd hose oil return to pan ;


(lump on oil pan under return port is a super strong magnet for errant unwanted metallic particles

also have an Audi 'air injector pump' considered for evacuating gases but takes lot of current and often have best results just 'keep'n it simple' ...

best scenario would be PCV operation until boost

hav e fun

 

[bubba22349]

Thank you, that's great and it looks like it will work excellent!