Wish they tested the knockoff: https://www.spelabautoparts.com/prod...43761444126971

$135 is awesome

 

Post #3 above.............I posted the same set up for $100 less,

 

I am not typically one to defend SPE Motorsports, but there are some differences in their CCV delete and the one from SPE Labs. Also, there are a lot of unhappy customers from SPE Lab, so while I wouldn't suggest it, if you buy from them buy knowing it may not go as you think it would...

I have the one from SPE Motorsport, along with their external catch can, and it wasn't cheap... especially since it's been sitting in a storage unit in FL for a year! lol This summer I am thinking I will install it though... we'll see.

 

Personally I think the SPE model with the catch can ($400) is silly, there is not a vacuum cut off valve/diaphragm, the catch can chamber is awfully small and will require very frequent clean outs to avoid clogging. Their standard ccv kit is $200 and is almost the same as the one I listed. I'm not saying mine is the best, but for the money ($36) it can't be beat. And the advantage is its maintenance free. If I were to go back to a stock set up, then yes it would be the '23 and up model ($80), but I am not to happy about sending the vapors back to the turbo/engine. I don't mean to steer this thread to a ccv reroute, but going through the procedure to remove the old ccv convinced me not to go back.

 

What I'm wondering though is the pressure drop

 

There is no longer a pressure being established, all crank case gases are venting out and no longer restricted.

 

sending blow by across rings from boost through small holes and a hose will definitely cause pressure. I want to know how much. There’s always pressure. There’s pressure from SPE internal catch from the small holes and hose , there will be pressure from the holes on SPE labs and hose.

 

Thats not pressure, its gases from the crankcase, if you restrict it, it will build a pressure, but venting to the atmosphere will not restrict

 

The amount of gasses going through a hose will absolutely create back pressure. That’s like saying “there’s no pressure in your exhaust because it’s going to atmosphere.”

 

Are you taking about the recirculating kit from SPE (Motors)? It's about $400 and it doesn't have the "crankcase depression regulator". Honestly, this was the reason I didn't get the SPE recirculating CCV box because it didn't have the valve on it. Also, note that the MC CCV units prior to the 23+ model didn't have them either, but it's interesting that they went back to including them on the 23+ models...

I paid $180 for the SPE (Motors) CCV reroute kit and $340 for their external catch can. I wouldn't say that the catch can is small by any means though... And I am not saying it is the best either, but I was try9ing to point out that SPE Labs really seems to be a slimy company, and I while I have never done business with them, I wouldn't recommend them either.

And while I have not installed mine yet, I will say that I like the way that SPE Motors designed their CCV delete to go straight up and over the brake booster, allowing gravity to work for a bit for any vapors that turn to liquid to drain back down into the engine rather than drip out of the end of the hose. I see that a lot of the less expensive ones are a right angle, which means as soon as the gasses come out of the engine they are pointed down hill and I would imagine they would be more prone to leave drips... Again, just my speculation by looking the design, but also reading others reports of them...

As to building up pressure in a delete, it is my understanding that the shorter the hose the better, and be sure to keep it constantly slopping down, leaving no valleys for liquid to form and collect in, which would narrow/restrict the passage. This seems simple to accomplish, but more than that, I wonder about the lack off "vacuum" on a delete since it is no longer piped back in front of the turbo like on a stock set up where there is a bit of vacuum that theoretically helps remove some of those vapors and relieves some pressure from the crank case...

 

I’ve heard of drag racers piping ccv perpendicularly on exhaust piping to create a negative velocity pressure from flowing exhaust gasses across ccv oriface to create vacuum. Some drag guys claim that when they piped the ccv to the exuast the vacuum it creates actually creates measurable horsepower to help rings sit better on pistons who knows lol

 

It's not uncommon for folks that delete their CCV to run a hose all the way to the exhaust and pipe into it with a Venturi fitting. I am not interested in doing this personally... if not done "right," longer lengths of hose presents more opportunity for dips which will restrict the flow, plus more fittings that may reduce the internal diameter, not to mention more bends that seems like it would interrupt the natural flow... Of course if done "right" the vacuum from the exhaust could overcome these restrictions, but to me it just seems like more work and potential for doing it "wrong" than just running a short, large diameter hose with very few, if any, bends and a high flow catch can at the end to help catch any drips that may come out... and maybe even help entrap some of the smell and "smoke."

 

Years ago I made a DIY catch can out of 4" pvc, the can is mounted under the bed. The ccv hose travels down hill into the vented catch can and has a drain at the bottom, the accumulated liquid will settle as the gases are allowed to escape from the vented can, at each oil change I will drain the can of the residual sludge. This can prevents any drips on my property and at the hanger.
My system is very similar to this set up, But pvc parts cost only $20.

https://sinisterdiesel.com/sinister-...50f350-67.html

 

This is from last year, but this guy had the '23 ccv and it failed causing an oil leak

Old May 2, 2025 | 06:15 PM
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@WXboy
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The 23-25 model OE CCV box may have the lowest pressure when new. My question is does it clog up more easily? After I swapped my OE '19 box for the OE '23 box I didn't see any noticeable difference in pressure judging by visible vapor and how the oil cap behaved when flipped over and laid onto the filler neck. But several months after installing it I started noticing oil dripping out of the front of the CCV box where the diaphram is, and then I developed an upper oil pan leak.

My truck is being repaired right now and when I get it back next week the CCV system is going bye bye. I'm not going to put up with these fears anymore.

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I just saw your thread for your PVC catch can a few minutes ago! That looked great! I would definitely try that if I didn't already have a catch can. Great job!

And wow, that Sinister Diesel catch can is $$$! I thought the SPE one was high... I was wrong! lol

I also remember that post about the leaky 23+ CCV. From my recollection though, that was the only mention I have seen of those leaking... so maybe it was just a one off? I have been running the 23+ CCV on mine for coming up on a year now and it is still dry. But this post put it in my head to keep an eye on it...