JLT Oil Seperator

[guspech750]

Be it hocus-pocus or something that is needed. I ordered new hoses from JLT as I already have a JLT can from my Marauder. It worked on the Merc and the can kept oil vapors off of the intercooler below the supercharger. I also had a prefilter on the intake side. But obviously two different beasts of motors.

So It can’t hurt my Expy and at least give a little peace of mind.

Pics of my Marauder JLT (car was totaled by a drunk. So I’ll use my catch can for my Expy.)






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[Plati]

Water vapor does nothing for performance, again you only want clean air and fuel in the engine to burn. Now that warmer weather is coming, my JLT will start producing straight oil again. Ever notice how oil fill caps get white gunk on the inside during the winter and not in the warmer months?

food for thought

https://en.wikipedia.org/wiki/Water_injection_(engine)

https://www.princeton.edu/ssp/64-tiger-cub-1/64-data/combustion-chemistry.pdf

 

[Boostedbus]

food for thought

https://en.wikipedia.org/wiki/Water_injection_(engine)

https://www.princeton.edu/ssp/64-tiger-cub-1/64-data/combustion-chemistry.pdf

Exactly.... there is some science to water injection and performance gains. My reason for pointing out the water vs no water wasn’t necessarily about performance gains but thanks for pointing that out. It’s was mainly to show that it doesn’t fill up as fast (especially in the winter) because of the lack of water in the mix. Once again I’m just showing the readers that there is a difference in the 2 cans other than just price. Which ever one people choose is up to them. I think they are both good but they do seem to work a little differently.

 

[lbv150]

food for thought

https://en.wikipedia.org/wiki/Water_injection_(engine)

https://www.princeton.edu/ssp/64-tiger-cub-1/64-data/combustion-chemistry.pdf

As I wrote my response I figured someone would bring this up. LOL. I guess next we can discuss fuel cooling ice systems get get every last bit of power gain...like we do on dragsters.

 

[Plati]

As I wrote my response I figured someone would bring this up. LOL. I guess next we can discuss fuel cooling ice systems get get every last bit of power gain...like we do on dragsters.

I'm not trying to be a wise guy, just like to learn new things so I thought I would google internal combustion engine & water vapor. The second article (for all practical purposes) confirms your original premise that only oxygen is required for proper combustion with hydrocarbons (gasoline) … The way I read it. I also learned that water vapor is a byproduct of the combustion, so some of that must find its way down into the oil … I would guess. Is that part of what the catch can removes?

 

[Boostedbus]

I remember street racing some dude that had water injection on a 4 bbl. 351 Windsor that was stuffed in a 68 Mustang Coupe. It seemed a little odd for back in the 80’s to install such a system for performance. It was a pretty close race but he did Beat me in the quarter mile.I was the underdog with a stock 2bbl. 351Cleveland with 279:1 open rear at that time in my 69 fastback Mustang.

 

[Boostedbus]

Be it hocus-pocus or something that is needed. I ordered new hoses from JLT as I already have a JLT can from my Marauder. It worked on the Merc and the can kept oil vapors off of the intercooler below the supercharger. I also had a prefilter on the intake side. But obviously two different beasts of motors.

So It can’t hurt my Expy and at least give a little peace of mind.

Pics of my Marauder JLT (car was totaled by a drunk. So I’ll use my catch can for my Expy.)






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I always liked those Big Marauders.... I raced one with a blower at 75/80 Dragway with my 69 Eliminator. He drug my ass by 2 tenths of a second. We both had similar gear ratios, he had 3.55 and I had 3.50’s at the time. I got out on him but that blower ran down my naturally aspirated 390 right at the traps.

 

[cmiles97]

Funny you guys mentioning Marauders. A good friend of mine is selling me his 04 Toreador Red Marauder. He is the original owner and it just turned 50,000 miles. He purchased it as a sales car when he worked for a company that paid him to provide his own car. He moved on to another job where the company provided a vehicle. He only drives it occasionally on the weekends. He's got too many vehicles and asked if I was interested as he knew I liked full sized cars that that handled well and were quick. When we worked together I had an SRT-8 Magnum. That's one I wish I hadn't sold.

I'll be picking it up late April or early May. I can't wait!

 

[RobK]

Is it normal for the jlt 3.0 can to be almost full after only 600 miles?

 

[Langer]

Is it normal for the jlt 3.0 can to be almost full after only 600 miles?

Mine fills up pretty quickly in the winter. I wouldn’t worry about it. I usually just take a peak every other week (my commute is only a couple miles each way).

 

[LokiWolf]

Is it normal for the jlt 3.0 can to be almost full after only 600 miles?

That seems a little short. Idle much? Mine fills up in about 1500-2000 in the winter, but my wife remote starts it a lot.

Goes to about the oil change 3000-4000 in the Summer.


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[Franklin Jones]

For those of us who aren’t missing two cylinders, is a catch can a necessity/big improvement?

 

[LokiWolf]

For those of us who aren’t missing two cylinders, is a catch can a necessity/big improvement?

Nope. It is a direct injection thing. You have blow by, but the port injection acts as a cleaner.


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[lbv150]

For those of us who aren’t missing two cylinders, is a catch can a necessity/big improvement?

Any engine with a PCV system will benefit from a catch can.

 

[LokiWolf]

Any engine with a PCV system will benefit from a catch can.

But MUCH less benefit on a port injected motor. Especially if stock.


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[lbv150]

But MUCH less benefit on a port injected motor. Especially if stock.


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Your opinion I suppose. Read up on the history of the PVC system, how it was originally dumped on the road, racing engines send it to the collector, a closed PVC system is for the lazy motorists who can't clean a can and burn all the crap in their engines...

 

[LokiWolf]

Your opinion I suppose. Read up on the history of the PVC system, how it was originally dumped on the road, racing engines send it to the collector, a closed PVC system is for the lazy motorists who can't clean a can and burn all the crap in their engines...

I know exactly how it works. It is a waste of hardware and time on most port injected stock motors. Not to mention a can of good fuel system cleaner will take care of the deposits in a port injected motor. DI motors have no fuel washing. That is the real issue.

The catch can catches it before it can deposit. I have seen MANY DI motors with 30K and deposits I wouldn’t see in a poorly maintained 200K port injected motor.

Will it help on a Port injected motor, sure. Any amount that the regular consumer would notice before they sell the vehicle or it dies of other causes, Nope.

Yes opinion, but from 30 years of working on cars and racing. Oh, not to mention a Chemistry degree, so I also understand the science.


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[chuck s]

All this JLT and science talk sent me out to the '17 Expedition to drain the catch can. Last time it was completely full and I've no clue what oil it sent back to the engine. This time it had about about 20ml, less than an ounce.

I stumbled across the spreadsheet I'd created a few months back and the engine has 6302 miles on it since it was catch-canned (to make that a verb), has run 492 hours (including 94 at idle), and deposited at least 270ml of stuff into the can, a bit over 9 ounces. That's about 3 ounces (the can's tiny capacity) every 2000 miles or 140 days for me since I don't drive this exclusively.

I'm toying with adding the extension to the can to up the capacity to 6 ounces. This should allow me to just have to drain it twice rather than 4x a year. Yeah, it's 10 minutes with a 10mm socket and step stool -- I can't even reach the oil dipstick over the fenders of my '17. The '07 was no problem.

On a normally aspirated engine they're engine bay eye candy at best but all the cool kids have them. Not enough oil to bother draining from the dual can setup on my lil' S2000. There are level gauges on the side of each can, unlike the JLT (a shame they're not reading this).

-- Chuck