Mishimoto Catch Can Petcock Drain Location

[4x4Laramie]

Hey guys,

Just installed the Mishimoto Catch Can on my 2021 Laramie 5.7 Hemi.

I am curious where you guys mounted the hose for the petcock drain kit. It is rather long. I could cut it, but I figured I'd see what others did first.

Hoping there is a convenient spot I can zip-tie it, or something...

Thanks

 

[Rsorrell2]

I just let it hang down along the radiator and put a zip tie. Makes it easy to put a container (I use a 1/2 milk jug) under the hose

 

[4x4Laramie]

I just let it hang down along the radiator and put a zip tie. Makes it easy to put a container (I use a 1/2 milk jug) under the hose

Did you have to cut the hose down a little bit? Right now a good foot or so will lay on the ground.

Can I wind it around some hoses in a loop (to shorten it), then zip tie it to those hoses?

 

[securityguy]

I put this on mine and just hold a cup under the can to catch the crap when I open the valve. You don't need a hose!

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

www.amazon.com

 

[joemo]

Is doing the catch can a worthy mod? I keep seeing mixed comments if it is worth it or not. Seems like an inexpensive addition either way, just curious if it has value.

 

[Ramtrx]

Is doing the catch can a worthy mod? I keep seeing mixed comments if it is worth it or not. Seems like an inexpensive addition either way, just curious if it has value.

It’s non performance. Just keeps the intake clean. The blow by on these trucks can be a lot.

 

[Scram1500]

It’s non performance. Just keeps the intake clean. The blow by on these trucks can be a lot.

Technically it helps helps performance. Oil vapor is known to lower octane in the air fuel mixture and can cause pinging which will alter the timing. From what I gather the Hellcat motor has an OEM oil separator, not that we have a Hellcat motor but I'd like it to run the best it can

 

[Ramtrx]

As I said. You won’t notice one single bit of performance. It may help the fuel burn but not enough to have an improvement

 

[4x4Laramie]

Thanks for the responses guys!

I ended up running it straight down and cutting the house with a Husky pipe cutter (~$13 at home depot). Zip tied it to a safe spot.

I'll try and post a pic to help anybody deciding on what I was.

 

[silver billet]

As I said. You won’t notice one single bit of performance. It may help the fuel burn but not enough to have an improvement

I really am on the fence on this issue; I completely understand why that is your view, but on the other hand, if your truck is knocking even on premium fuel and a catch can reduces or eliminates knock, then you will see a performance "gain" by using it. Reducing knock/timing costs you in terms of power output, so by reducing knock you simply allow your engine to work at max/peak performance.

So maybe instead of saying "it improves performance" we can say "it reduces the chance that your engine performance is reduced".

My truck pings the worst on 87, and even on 89 and 91 it still is never completely gone though it is far better.

 

[Ramtrx]

My truck pings running a tune and 91 octane with a catch can. It’s quite irritating.

 

[joemo]

Technically it helps helps performance. Oil vapor is known to lower octane in the air fuel mixture and can cause pinging which will alter the timing. From what I gather the Hellcat motor has an OEM oil separator, not that we have a Hellcat motor but I'd like it to run the best it can

Hmm now that would be AMAZING!.. a hellcat motor..

 

[4x4Laramie]

 

[Ramjack]

My truck pings running a tune and 91 octane with a catch can. It’s quite irritating.

That's disappointing to hear. What model year? That's the main reason I would want a catch can; to prevent carbon build-up after a few thousand miles that can cause pinging in the long run.

 

[securityguy]

My truck pings running a tune and 91 octane with a catch can. It’s quite irritating.

Catch Can has nothing to do with pinging.

 

[securityguy]

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Totally unnecessary. I installed a stainless valve directly on the bottom of my CC and can easily reach it to empty the CC into a cup right from the engine bay. The MM Petcock kit is WAY overpriced and the plastic valve is crap. This is what I bought:

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

www.amazon.com

 

[Ramjack]

Totally unnecessary. I installed a stainless valve directly on the bottom of my CC and can easily reach it to empty the CC into a cup right from the engine bay. The MM Petcock kit is WAY overpriced and the plastic valve is crap. This is what I bought:

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

Cowin Brewing 3/8" NPT, Stainless Steel 304 Mini Ball Valve Female X Male Overall length: 43mm: Amazon.com: Industrial & Scientific

www.amazon.com

Did you have to drill into the bottom of the can and tap threads or is there a hole already there for the fitting you purchased? I like the way you've done it as opposed to the dangling hose and plastic fittings.

 

[securityguy]

Did you have to drill into the bottom of the can and tap threads or is there a hole already there for the fitting you purchased? I like the way you've done it as opposed to the dangling hose and plastic fittings.

The threaded hole is there and has a plug installed. Remove the plug...install the valve and you're done. The dangling hose with the crap plastic petcock valve is terrible and unnecessary.

 

[Ramtrx]

Catch Can has nothing to do with pinging.

Didn’t say it did. Read the thread. Someone said it would help. I stated it didn’t. So you just confirmed what I stated. Thanks.

 

[Ramtrx]

That's disappointing to hear. What model year? That's the main reason I would want a catch can; to prevent carbon build-up after a few thousand miles that can cause pinging in the long run.

The catch can helps keep the intake clean. My pinging has to be a lifter. Dealer being a **** replicated it but barely and said it’s normal. It’s not, but now I’m out of warranty. Owe well I guess. Hope it doesn’t nuke itself.