Forced Induction Charcoal canister.. boost..

[Kid wita 5oh]

A random thought popped in my head today while I was running ac lines(fathead garage kit)....
Will I need a check valve in the hose from the plenum to the charcoal canister ? (Will be 10-12 psi boost)
Could it damage the canister, or worst case, pressurize the tank?

 

[90sickfox]

A good one way check valve will work to keep boost from going un the canister. There should be a solenoid on that vacuum line. I don't remember if the solenoid is usually open or closed.

 

[85GTStangGuy]

There should be a solenoid on that vacuum line. I don't remember if the solenoid is usually open or closed.

That solenoid is normally closed.

 

[Kid wita 5oh]

Ok so the existing solenoid should do the trick Or should I still put a check valve in?

 

[Kid wita 5oh]

So I'm slow sometimes ...in also installing a Terminator X system so the stock solenoid will be no more....
Do I just let the canister vent to atmosphere, delete it, or use a check valve?

 

[Kid wita 5oh]

@Mustang5L5 any input? ....

I've done some reading and I take it I don't want almost constant vacuum on the canister/tank due to how the stock solenoid pulses...

I don't really care about the gas smell potential but if the canister vented to atmosphere will help that I'll leave it.
Or will the canister get clogged up with a vac source to evacuate it?

 

[Noobz347]

I have run my charcoal cannister alongside my Kenne Bell since day 1, without modification of any kind. It carried over to the new engine and is still operating today.

I don't think you need to do anything at all. It's not like you're running up and down the streets in full boost all the time. I probably spend more time in the [boost range] with the Kenne Bell than just about any centri or turbo build. It still passed its last sniffer test with no issues. Full disclaimer: It's been 5 years since the last time it was tested.

 

[Kid wita 5oh]

What about with no solenoid to modulate the vacuum?

 

[Mustang5L5]

Leave it as is. The canister is actually vented internally through the charcoal. Disconnect the vac line after the solenoid and plug it The pressure in the tank should self-relieve through the internal vent (the caps on top) without issue. This is what i plan on doing with my MS as the TermX has no logic to control it as well. You can try and create an output to open/close the solenoid based on the factory logic. I used to have this logic down, and it's quite complex in terms of the conditions in which the charcoal canister does pull fumes into the engine.

 

[Kid wita 5oh]

Leave it as is. The canister is actually vented internally through the charcoal. Disconnect the vac line after the solenoid and plug it The pressure in the tank should self-relieve through the internal vent (the caps on top) without issue. This is what i plan on doing with my MS as the TermX has no logic to control it as well. You can try and create an output to open/close the solenoid based on the factory logic. I used to have this logic down, and it's quite complex in terms of the conditions in which the charcoal canister does pull fumes into the engine.

Perfect that's what I was wondering