Oil catch can YES or NO?

[LETHAL]

so the catch can is less of an issue as port injected fuel will wash the valves

it's to catch the blow by going back into the throttle bodies more then anything. I run one on every vehicle I have.

Sponsored

 

[Smaaron]

it's to catch the blow by going back into the throttle bodies more then anything. I run one on every vehicle I have.

Doesn’t the latest coyote have port injection at low rpm’s blended to direct injection at high rpm’s? Would that make a difference?

 

[LETHAL]

Doesn’t the latest coyote have port injection at low rpm’s blended to direct injection at high rpm’s? Would that make a difference?

Gen 3 had this as well. I'd get a 1/4 canister full of spray every 3k.

 

[NS90]

What's the general consensus on if the S550 catch can offerings will work for the S650?

 

[LETHAL]

The fact that it's dual injection doesn't mean it won't have any, it means that the fuel being injected should wash the valves.

Which has zero to do with the need for a catch can. I don't believe I was contesting the info you just shared?

 

[LETHAL]

What's the general consensus on if the S550 catch can offerings will work for the S650?

Hose routing will be the main difference, MAYBE

 

[LETHAL]

Of course, I didn't say you were. But the need is not as great as in a direct injection only engine.

Fair enough..

 

[5.0ALM]

I'm on the fence regarding a catch can.
I'm also acutely aware this is one of those polarising subjects which can induce hissy fits.

Qualified independent people debunk catch cans as uneccesary on dual port engines, yada yada.
Retailers and their influencers (those who make a financial gain) push them as must haves.

But this is the first time I have seen reference to crankcase pressure build up, compromising the rear main seal, resulting in oil weep.

I like the simple ways these two prove the catch can is actually causing pressure build up.
(It's only 10 minutes)




Yes, it's an old 80 series diesel cruiser, but back pressure is back pressure, right?

Have their been any long-term reports of Coyote rear main seal issues after a catch can has been fitted?

 

[Ryunker]

I'm on the fence regarding a catch can.
I'm also acutely aware this is one of those polarising subjects which can induce hissy fits.

Qualified independent people debunk catch cans as uneccesary on dual port engines, yada yada.
Retailers and their influencers (those who make a financial gain) push them as must haves.

But this is the first time I have seen reference to crankcase pressure build up, compromising the rear main seal, resulting in oil weep.

I like the simple ways these two prove the catch can is actually causing pressure build up.
(It's only 10 minutes)




Yes, it's an old 80 series diesel cruiser, but back pressure is back pressure, right?

Have their been any long-term reports of Coyote rear main seal issues after a catch can has been fitted?

Crankcase pressure is a real thing, and does cause oil leaks. That being said, I see this on many GM 4 cyl turbo motors mostly due to a shit pcv designed system. My experience are with todays oils along with a maintained pcv system I see no issues with pressure build up.

With any added catch can the added maintenance item comes with that. It must be serviced (drained) or it is useless. Very similar to K&N replacement air filters. Many are installed and never serviced (cleaned), that causes issues.

On my new ride if it ever gets scheduled, no such catch can will be installed.

 

[Zig]

It would seem ford finds some value in one, dh seems to include one. At least according to the pdi checklist?

 

[Nv6974]

It would seem ford finds some value in one, dh seems to include one. At least according to the pdi checklist?

Saw that! Curious to see how that one looks!

 

[fschael]

so the catch can is less of an issue as port injected fuel will wash the valves

What about the intake manifold?

 

[BlackFerret69]

It would seem ford finds some value in one, dh seems to include one. At least according to the pdi checklist?

Agreed. The interesting part is that Ford feels some need to ship it with the DH, but leaves it up the Customer to install it:

 

[agreywolfe]

since its in there with the gurney flap tells me that its probably only recommended if youre tracking the car, but not needed for every day use

Sponsored