VMP built E85 car, but no catch can?

[Snoopius]

Hey all, I recently purchased a 15 GT PP with 14k miles on it with quite a bit done to it by VMP themselves it seems. Prior to me having the car shipped up to WI, it's spent it's entire life within a couple hours of VMP in FL and came with a really great paper trail of receipts, service info, and dyno sheets from the past few years. The car has one main invoice from VMP for forged internals, cams, Fore fuel system (E85), Gen3R unit w/smaller pulley, engine R&I and parts install labor, tuning time, and all supporting bits (head studs, billet oil pump & crank gears, etc.). The most recent dyno sheet shows this car being 962whp as well; all things considering this car is done really well and I've been nothing short of impressed with it so far.

The one things that just seems so odd and out of place to me, is that there is no catch can on this car. I also can't find one itemized on any of the VMP invoices either, so I'm assuming it's potentially never had one on it. Can anyone think of why that would be? It seems every N/A Coyote guy is pushing for catch cans (and I know this is a HUGE can of worms subject across any platform), but I almost feel like for how much and how well this car is done, along with the fact that VMP did the work, that it's strange they wouldn't have pushed for or sold a can on this thing. Knowing that, I almost feel like I'm missing some really odd or obvious reason as to why my setup doesn't have one intentionally.

The only thing that I can come up with, and it seems like a reach, is that being an E85 car the can would fill up much quicker compared to a non-E85 car from what I've read that maybe the discussion was to just not have one on there to not worry about emptying it? That would still seem odd since the car is pushing 10 years old and only has 14k, so it's not like it was getting driven a ton where the can filling up too quick would be a major concern.

Does anyone have any ideas otherwise as to why this car would not have the can? I know if I just ask, "Should I have one?" everyone will say yes of course.

Also, side note, but I can't really find any real evidence that VMP even does this kind of work, but as mentioned, my invoices are on their letterhead. So if anyone has any input on that I'd be curious to hear it as well just out of curiosity.

TIA!
-Rob

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[jpjr501]

Could be an older build from the late teens. Catch cans became really popular in 2019-2020. Now every Mustang has one.

You need to get a vent to atmosphere catch can so you don't pop a ring land. You can guy one that does both valve covers. I have two catch cans, one for each valve cover and both vent to atmosphere. I'm also going to remove my PCV since it's not needed now. I just can't find a dummy male nipple.

 

[robvas]

Believe it or not, you don't NEED a catch can. The NA guys circlejerking over them is par for the course.

Any pictures of the engine bay? I wonder if it has vented valve covers or anything else.

 

[80FoxCoupe]

Could be an older build from the late teens. Catch cans became really popular in 2019-2020. Now every Mustang has one.

You need to get a vent to atmosphere catch can so you don't pop a ring land. You can guy one that does both valve covers. I have two catch cans, one for each valve cover and both vent to atmosphere. I'm also going to remove my PCV since it's not needed now. I just can't find a dummy male nipple.

Just gut the pcv valve.

 

[jpjr501]

Just gut the pcv valve.

That was my last resort but since I'm not finding any I will probably do that.

 

[5doorsoffury]

The moisture buildup happens a lot in winter so maby?

catch cans catch oil blowby and pcv goop. oil reduces octane rating so that's bad but on e85 no care about that so the next thing it does is prevent intake valve carbon buildup on direct injection cars. gen 3 motors are di pi blend but the pi cleans the valves so no need there.

I don't have a catch can and I'm not really wanting one tbh. u need a small can to fit it in any spot that you can drain easy in this car and u need 2 not to mention if u forget to fully close one u have a vacume leak lol.

 

[CrackedHorn]

That was my last resort but since I'm not finding any I will probably do that.

It's very simple. Unscrew the PCV tube from Valve Cover. Use a small screwdriver to pop off the plastic screen, and the guts fall out. Screw it back in and you're done.

Spare units can be found for cheap.

 

[robvas]

the next thing it does is prevent intake valve carbon buildup on direct injection cars. gen 3 motors are di pi blend but the pi cleans the valves so no need there.

I've seen enough dual DI/PI engine teardowns on YouTube to see there's plenty of carbon deposits compared to a PI only engjne.

 

[SheepDog]

Could be an older build from the late teens. Catch cans became really popular in 2019-2020. Now every Mustang has one.

You need to get a vent to atmosphere catch can so you don't pop a ring land. You can guy one that does both valve covers. I have two catch cans, one for each valve cover and both vent to atmosphere. I'm also going to remove my PCV since it's not needed now. I just can't find a dummy male nipple.

https://www.uprproducts.com/upr-plu...23-mustang-f150-explorer-hellcat-upr-5045-24/

 

[jpjr501]

https://www.uprproducts.com/upr-plu...23-mustang-f150-explorer-hellcat-upr-5045-24/

And I live 20 minutes from them in Boca too. I forgot they had all these fittings, thanks. I need to order it.

 

[Snoopius]

@robvas Here are some engine bay pics. From what I can tell, it all looks pretty stock as far as setup/routing goes.

 

[80FoxCoupe]

@robvas Here are some engine bay pics. From what I can tell, it all looks pretty stock as far as setup/routing goes.

That setup is fine, I'd leave it as is.

 

[ssmustang302]

Does it have a lean spot light throttle around 2200rpm?

 

[Angrey]

The moisture buildup happens a lot in winter so maby?

catch cans catch oil blowby and pcv goop. oil reduces octane rating so that's bad but on e85 no care about that so the next thing it does is prevent intake valve carbon buildup on direct injection cars. gen 3 motors are di pi blend but the pi cleans the valves so no need there.

I don't have a catch can and I'm not really wanting one tbh. u need a small can to fit it in any spot that you can drain easy in this car and u need 2 not to mention if u forget to fully close one u have a vacume leak lol.

You don't need 2. Just the passenger side. The driver's side is almost universally bone dry and not necessary/required.

And just because someone is running E85, doesn't negate the interest of NOT contaminating the quality of the air/fuel mixture. MOST of the time, most E85 tunes are on the edge of knock and introducing large hydrocarbons into the mix, especially when the motor is properly loaded (in the real world vs a dyno) is just one more thing to contend with.

I run JLT's on both banks, but really only need the passenger side. I check/empty it about once every few outings and empty an ounce or two of fluid. Simple. Easy. No tools. Just twist it off (with a rag for grip) and hand tighten it back.

 

[Snoopius]

Does it have a lean spot light throttle around 2200rpm?

It doesn't seem like it. I tried to pay attention to that range in a few different gears today and nothing stood out to me at all.

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