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Tracy Lewis Performance Signature Catch Can Install 17 Fusion Sport

33K views 65 replies 23 participants last post by  Shane8017 
#1 · (Edited)
Oreo and the Tracy Lewis Performance Signature Series Catch Can Kit




Well this project started back on Tuesday July 11, 2017 at 12:00 noon my time (1:00pm for Tracy). I decided I really needed to go ahead and get the kit as I have put quite a few miles on the sport and the wife agreed this was something we really needed to get installed. I gave her a in depth explanation and the downside and possible costs of future repairs so it was a no brainer. The only way to actually see if this was going to fit the sport was to get one in hand.


I pinged Tracy on FB messenger and inquired if I placed my order right then would I get it by the weekend. He asked me to call directly and talk to Mike or Karen about placing the order. So I called and talked to Mike. He asked about my car, motor, what kit I wanted etc. I had already decided to go with the Tracy Lewis Signature Series dual valve system. Then I asked if I could have it for the weekend. Mike told me that they would try but there were several components that needed to be machined so he couldn’t promise it would make it for sure. Hey, I knew my request was pushing the envelope but I placed the order and crossed my fingers it would show up.



Friday after lunch I was sitting at my deck working and my wife walked in and stated you have a box. A box? Yeah it’s pretty heavy too. Sure enough it was a box from Tracy they got it to me before the weekend. Hot dog let the games begin!


So there are a couple ways to do this but I’m going to try to stay in the normal progression of how the project unfolded. So as noted the box was fairly heavy so I took it out to the shop and opened it up. I know everybody looks at the cost of these catch cans and it puts them off, especially since there are others making catch cans, inline filters for less than half the cost. Well I cannot impress upon you enough the quality of this product. It’s not some plastic or PVC pipe catch can. It is a finely machined piece of art. Machined aluminum brackets, mount, catch can, removable top and bottom, quality AN fittings and ball valve plus aluminum check valves not cheap plastic included a thread tap and cold side breather and adaptor not to mention all the fittings. You can tell Tracy takes pride in his product.





So I went with the standard size can as I was worried that the monster catch can would not fit in my targeted location. Turns out I was right but we will get to that later. I also went with the normal hose option but you can upgrade to covered hoses but for me the standard route was good.


So my initial thought was that since I had installed the Steeda CAI, and the available space between the factory air box and the battery was now gone, I would mount it on the passenger side firewall by the computer. In doing some research I found people mounting catch cans under car, side frame, grill but no sport installs. I actually, against my daughter’s advice, removed the CAI to see if there was room to mount it under there. No room under CAI, no room by battery, no room by wiper box, no room in grill (didn’t pull the nose off) so that basically put me right back where I started with mounting it by the computer. This should be out of the way but allow me access to the drain valve.

Ford was kind enough to provide 3 possible mounting bolts that come through the firewall.




Well one is actually a screw thread but the other two are normal 6mm coarse thread bolts. It became all too clear that using one of these bolts to mount the catch can was not going to work. The solid design of this can means there is a little weight to it and I was worried about the bolt breaking off plus I needed the bracket about 1” to the left of the actual bolt. So this was the first hiccup in the process. I knew I was going where no sport owner had gone before (afaik) so after looking at it I decided that if I fabricated a plate that would mount to two firewall bolts, I could mount the catch can bracket to the plate and would be stable enough to support the catch can. Looking around the shop I had a piece of 16ga metal that I cut into a 2”x2.5” plate, rounded the corners, marked the bolt pattern, drilled the holes and test fitted the plate. Looked great so I then mounted the bracket to the plate and test fit it. This is where the second hick up occurred. The fire wall is angled and leans forward. This caused the catch can mounting bracket to slope forward and would result in the catch can leaning forward. Well that isn’t going to work. So I stepped up on the bolt hole size in the plate, used a back washer and locking nut on bottom of plate to hold it out away from the firewall while tightening up the top nut all the way to the fire wall. While this helped to straighten the plate it still has a forward tilt.


With the basic plate design worked out a trip to the hardware store resulted in the acquiring of a ¼ bolt, 6 washers, nylon locking nut and 2 nylon spacers ¼ ID x 5/8 OD x 3/8L, a couple locking nuts 6mm coarse, a couple nylon 6mm nuts and a few more washers. The idea is to cut the two nylon spacers ends off at an angle to allow the catch can bracket to mount at an upward angle from the plate surface thus leveling the bracket. After a couple trial and error testing I was able to get an angle that looked useable. I assembled everything, checked the mount in the car, painted her up and ready to install...









Hmmmm, something is off. Well crap the catch can bracket was ¼” to high and the bracket needed to be moved about 5/8” toward the computer to allow the can to mount. Hick up three just showed up. Moving the mounting bracket away from the mounting bolt on the 16ga plate resulted in no support due to the lack of rigidity in the mounting plate. Mounting plate version 2.0 corrects this issue and will allow for a solid support system.

The mounting bracket is now 2” x 3” and made with a piece of 1/8” aluminum flat bar from Home Depot. This allowed me to move the mounting holes in the plate toward the driver’s side by about 3/8” while maintaining rigidity and allowing me to mount the catch can bracket in the proper location. Mocked up, tested and painted with POR15 black to help it blend in under the hood. The mount the complete mount assembly I placed a nylon 6mm nut on the bottom stud and threaded it on until I could put a washer on the bolt, followed by the mount and still have enough threads to tighten down a nylon nut to hold in place. The top bolt has a washer and nylon nut tighten all the way to the firewall. This setup is solid as a rock and ready to mount the catch can.





PDF of the bracket - https://drive.google.com/open?id=0B0T5pVY2XLDvd2h0N0pIanpWSVU



Optional Bracket Mount by forum member Bucket1952's




Mounting Position with Factory Airbox - thekaus







The bottom of the catch can has a threaded ball valve used for draining the can. I happen to have a high flow industrial male air fitting that worked great for this. A little nylon tape on threads and it was ready for the drain hose. The enclosed drain hose fit tight on the fitting but I added a black zip tie to help crimp the hose in place. It’s not going anywhere any time soon.





During this whole process rain, other projects, rim repair, trying to figure out the oddity that reared its head during my second dyno testing session has kept the catch can install on the back burner. But while I was doing an oil change after my Little Rock, AR road trip I was able to get the catch can mounted and found a safe drain hose route that doesn’t interfere with exhaust, steering, transaxle. I pull the underbody engine shield off the car while changing the oil which gave me a clear line of site for the routing. I found there you can run the drain hose along the back passenger side of the firewall, and tuck it behind the hydraulic line for the steering. This allows the end of the drain tube to hang out of one of the factory shield holes so you can drain it without having to remove the shield. To hold the hose in place I used a simple zip tie.














So now that I have the can mounted I have to start looking into the other need to complete the install. The biggest one was the clean air filter side normally mounts a fitting in the upper airbox cover post filter to allow the engine to draw air from the air box. Since I have the CAI installed there is NO upper cover to mount the air feed. After a little digging around and looking at this I decided to do a simple easy mod to allow the clean air side to breath cool clean filtered air from the CAI and not hot air from the engine bay. I decided I would mount a straight threaded nipple enclosed with the kit into the front upper side of the CAI airbox. I drilled a 1/2” hole then used a step bit to increase the size until I was able to just get the Once the fitting was threaded into the box I would use a Spector Performance Breather Filter (3996) from Autozone on the threaded end of the nipple that would be thru the box and exposed on the back side. The filter rubber bushing is designed to mount on up to a ½” inch tube but our nipple is bigger than that so I took my ½”drill bit and gently drilled out the inside of the rubber filter bushing. The bushing is removable and allowed me to hold it while I drilled it out. With the bushing enlarged and reinstalled in the filter I can now thread it onto the back side of the fitting and hold it in place with the provided hose clamp.











 
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24
#2 · (Edited)
Ok before anybody starts yelling about blocking air flow I confirmed the filter is above the inlet for the fresh air and is NOT blocking air flow. Now all I have to do is slide the hose on the nipple and route it to the clean air filter oil fill breather on the motor.








Now let’s tackle the clean side first. Remove the current clean air side tube. Simply disconnect the two connector’s one on the valve cover the other on the front side turbo inlet pipe. You will notice there is a MAP sensor on this tube. Carefully remove it from its mounting clips by gently spreading the sensor side clips and remove sensor (be careful not to damage the sensor). Set the factory tube aside in case I want to reverse the install at some point. Also included in the kit is a black nipple cover. Place this on the valve cover nipple where the connector came off. This connection is no longer needed as we will be feeding clean air to the engine from the breather filler cap.





There are a couple ways to remount this MAP sensor in the catch can layout. Tracy’s video shows him rerouting it on the dirty side of the engine (there was NO clean air breather installed on that video) and I was going to mount it back in the clean side run like it was initially but decided to follow Tracy’s instructions to the letter. Why reengineer something that is proven to work.



So what do we do with the turbo intake tube nipple? This now gets connected to one of the outside bard connectors on the catch can. I started this run from the catch can end cutting a short 4”-5” piece of hose and installing one of the check valves into the end of the hose. If you look at the check valves there is an air flow indicator on the valve. Check the valve by blowing on each end of valve to confirm air flow direction. The valve needs to be installed so the air is flowing away the catch can. In the case air should flow from the open hose end to the open barb on the valve. Now install this hose on to one of the left outer catch can barb (a little WD40 on the barbs helps). From here route the hose back to the turbo inlet barb and install one of the factory style 90 degree connectors included in the kit and connect to the open nipple. You can route this hose any way you like but I routed mine under the throttle body, along the valve cover under the wiring loom and finally to the turbo down tube. I found it easier to work with the full length hose when doing this as I could pull a couple extra feet forward allowing me to install the 90 degree connector then feed the hose back until I could connect the connector on the down tube nipple. Now make sure you have enough slack, cut hose to length and push on the open check valve bard. Success we now have the first suction run completed. We are done on the front side.














Now we remove the dirty side hose connected to the back valve cover and the intake manifold. Set this hose aside so we can revert back to factory later if needed. Now we will hook up the dirty side valve cover nipple to the center barb on the catch can. To do this simply install a 90 degree fitting on one end of the hose and route it to the center barb on the can.


Before you cut the length make sure you have enough slack to loop the hose without crimping it. I decided to run this hose toward the passenger side of the car looping to the center barb on the catch can. Lube the center barb with WD40 and push the hose in place.



Now remember that MAP sensor we have from the clean side? We need to get this back in the system to prevent codes. To do this we are going to cut the hose we just installed about from the dirty side valve cover about 3” from the 90 degree fitting and install the provided T-connector. Once installed you want the T point to the front of the car. Now we cut a length of hose long enough to allow us to reach the MAP sensor. Tracy’s video shows him installing the MAP sensor directly into the end of the hose. Welcome to kick up number four. The MAP sensor on the F-150 must be bigger than the one on our sports. Remember that clean side hose with the MAP sensor mount? Yep I grabbed it, took a razor, and gently cut the tubing on both ends of the mount and removed the hoses. Now I took the MAP sensor mount and installed it into the end of the hose on our T. From here you simply install a cap on the other end of the mount. As I didn’t have a cap I pushed on a short piece of hose and shoved a barb cap in the end creating a temp plug/cap. Dirty side done!












This leaves us with just the final vacuum hose from the intake manifold to the right catch can barb. Again we cut a 4-5” piece of hose, check the air flow of the check valve to make sure it flows air from the catch can and install it in one end of the hose. Now install the hose to the catch can with a little WD-40 on the barb. Now I routed my nose a little different, I loosened the AN nut on the right barb and aligned the bard with the firewall pointing towards the driver’s side of car. I then installed the 90 degree connector from the kit, installed it on intake manifold pointing towards drivers side of car and looped hose to the check valve insuring no pinch or kink. Cut to length and push hose on check valve bard.





I guess I should mention I test fit the engine cover between each hose install to ensure I didn’t have an obstruction or any sort. Man I love this drive by wire system no linkages or moving parts to get in the way.



As I stated at the beginning the kit includes the clean side breather that replaces the factory oil cap. Install is easy BUT this is a two piece item and I recommend separating them before install. The breather has an oil filler neck adaptor that you need to screw into the oil filler neck completely before installing the breather. Once the adaptor is installed the breather simply pushes into place.













Now we are going to route the clean air hose from the barbed adaptor we installed in the CAI to the breather cap barb. Lube both barbs with WD-40, install hose on the CAI barb the route the hose along the front of the car to the clean side breather. Make sure you leave enough slack in hose to allow a clean bend to the breather. This will give you enough slack to remove the breather and set it on the front air inlet cover when adding oil.






Project done. Catch can installed.


New simple/basic install:

The simple version. Left hose barb is valved and goes to intake manifold. Center hose barb unvalved and goes to dirty side aka back valve valve cover and right barb is valved and goes to the cold air intake tube that feeds the back turbo.



You will have to Tap the cold air tube. Tracy provides everything you need to do install. When tapping just remember not to run the tap all the way in as it will create a threaded hole bigger than you threaded elbow!!! Simply thread it enough to get threads in your tubing.



A look with the cover on.



What I like about the install is it looks factory and you can hardly notice it at all.



Routing the drain tube is up to you originally I routed it down behind the steering linkage and out the belly cover but when reinstalling this time I ran it down and out along the inner wheel liner and zip strapped it to the liner vai a single hole I drilled to allow the zip tie through. Easy to reach for draining now.




All done and good to go.
 
#3 ·
Nice in-depth write up and clean install.
Have you talked to Torrie to see if you'll need any tune adjustments since it could throw off your air\fuel mixture?
If you have any difficulty getting to the peacock drain, you can relocate it to the bottom of the drain hose as long as you clamp both ends of the hose.
 
#4 ·
Not yet. I hope to start the tune adventure again next week she is all stock as of now.
 
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#5 ·
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#8 ·
I'm a big fan of catch cans and have them on a few of my vehicles. So here is my .02

First I want to warn people about Tracy Lewis and his reputation with RX. If you do any research you will quickly find out what he had done to the Mustang and GM guys, Just look and come to your conclusions. Oh and the RX controversy, well again do a little digging and it will give you hours of reading pleasure :).


Onto this kit. This seems to be very overpriced and the kit seems cheap. No when I mean cheap for a $350 US kit, it only has PCV hose and plastic fittings etc....No Aluminum AN fittings, No braid hoses etc... I can't comment on the catch can themselves since I don't have one in front of me. Now reading about how much it catches is a messy subject, but on my other cars (Running Bob's Auto Sports catch cans) they catch way more they people on here are witnessing with this unit. Isn't this the main reason why your are doing this right? So just a FYI and be aware of what your buying.
 
#11 ·
Ok here is the list of items I purchased to do the project...

Tracy Lewis Signature Catch Can - $369.00 I chose NOT to get the fancy braided lines but they are available as an option.
Catch Cans Archives - Tracy Lewis Performance

1 - 2"x36"x1/8" aluminum flat bar - $10.21 from HomeDepot used to fab the firewall mounting plate.
Everbilt 2 in. x 36 in. Aluminum Flat Bar with 1/8 in. Thick-801977 - The Home Depot

4 - 6mm coarse thread nylon locking nuts. - $3.20 Local hardware store
4 - 6mm coarse thread jam nuts - $1.64 Local hardware store
2 - Nylon spacers .25" I.D. x 5/8" O.D. x 3/8" Length - $2.18 Local hardware store
4 - 1/4" x 1" fender washers - $.80 Local hardware store
1 - 1/4" x 2 1/2" bolt - had in the shop
2 - 1/4" nylon locking nuts - had in the shop

As far as the nylon washers I cut one end of each spacer at the angle needed to hold the bracket level. After making the firewall mounting plate I recommend that you bolt everything together to see how it fits and this will give you an idea of the angle you need to cut on one end of each washer.

Here is a pdf of the pattern to make the firewall mounting plate. https://drive.google.com/open?id=0B0T5pVY2XLDvd2h0N0pIanpWSVU
 
#15 ·
Sorry guys I left the final image off the initial post. Here is what the completed install looks like. Pretty stealthy...

 
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#17 ·
Just a little back ground before I post the first drain and start tracking my catch can. I purchased the car in November special ordered and took delivery December 19th. My first oil change was at 2500 miles dealer w/Motorcraft Syn-Blend and at 7500 miles I did the oil change myself with 5w-30 Amsoil Signature Series Full Synthetic/Motorcraft filter. I pretty much babied the car during the break-in period (2500 mile oil change) which about 25% in town and 75% highway driving, with the occasional WOT run here and there. The next 7500 miles was mostly highway miles for work 65-80mph long run with more spirited runs and a couple lunches here and there. Once I did the oil change at 7500 miles and had full synthetic running through her veins the gloves came off and she was run hard, dyno tested, light to light run and slapped with a tune. Now returning from a 800 mile road trip it was time for another oil change at 15,500 again with 5w-30 Amsoil Signature Series Full Synthetic/Motorcraft filter. The catch can was installed in conjunction with this oil change.

So with the catch can installed, for a week, no codes, never gave my wife any problems, she drove it while I was away for work so it was babied all week but she managed to put 189 miles on it. I have to be honest after seeing all the horror videos on YouTube I was concerned about what the can had caught. Would it be full, half full or empty? So I couldn't stand it I was worried the can was full and I had to check.

So there are a lot of things that contribute to the contamination that is caught by the can piston ring blow, condensation, oil vapors and a list of other things. Something a lot of people don't catch with all the YouTube videos and horror stories is the fact that most of these cars/trucks have a lot of miles on them before the catch can is installed, they are not running full synthetic oils, and several are recorded during winter which to my understanding increases collection amounts.

With the assistance of my wife I reached under the car placing a measuring cup under the drain tube, started recording video. Open it up, OK. Did you open it? Yes Are you sure you got it open? YES! To my amazement nothing drained. Hmmm my brain instantly went into double check mode and for piece of mind I double checked everything and it is all installed correctly.

So what gives? Well a couple things in my opinion, I'm not getting a lot of blow by which is good. Some people report their oil having a fuel smell but mine never has. I only ran 7500 miles before switching to full synthetic which cuts down on the vapors. Close to 70% of my miles were highway miles pre-catch can install and finally the weather has been really hot and historically collection is lower during summer months.

Just to confirm I shot Tracy a message and he confirmed.

That's a good sign. Shows well sealing piston rings. By the time cold weather comes there will be more due to water amount is greater below 45* F. Make sure to drain when engine is hot and not running. Also, first drain if engine has issues is usually greater than others, but if well seated rings and warm weather, just to get first chamber saturated can take several thousand miles.
So I know everybody was waiting for a YouTube Catch Can Milk Shake type drain video but I have to say I'm glad I didn't have one. I'll continue to post drain intervals which will be a couple thousand miles from now. We will also see what winter brings as cooler weather in only a couple months away.
 
#21 ·
I installed a catch can

I got a RX catch can given to me and installed it yesterday. Had to order a Clean Side Separator. I would of like to installed this thing in a much cooler place other the engine bay. Catch a lot more in a cooler place. Followed much of Oreo instructions. Haven't seen anyone posting pictures what they been catching.
 

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#22 ·
i was reading about the 2.3L Ecoboost and from what i read it said that the engine comes with a catch can installed. I wonder if the 2.7 has one as well? Granted they did say having another one could help if you are tuning. If this is the case and i installed my own catch can i wounld'nt be worried if nothing was showing in the can in hopes that the factory can is catching everything.

link posted below.


Blog : Understanding your PCV system, upgrades, and catch cans : Stratified Automotive Controls
 
#24 ·
i was reading about the 2.3L Ecoboost and from what i read it said that the engine comes with a catch can installed. I wonder if the 2.7 has one as well? Granted they did say having another one could help if you are tuning. If this is the case and i installed my own catch can i wounld'nt be worried if nothing was showing in the can in hopes that the factory can is catching everything.

link posted below.


Blog : Understanding your PCV system, upgrades, and catch cans : Stratified Automotive Controls
The valve cover labels state Air to Oil separation and shows that it drains back into the crank case. The "Box Separator" also is baffled running the air thru it to allow collection of oil and other contaminants and then they drain right back into the crank case. That mean all the condensation, acids, fuel and other liquids are also being returned to the crank case which is one of the reasons I installed the catch can/separator in the first place. Also their catch can image looks like Ebay version and not a quality catch can like Tracy's IMHO.

Also to be clear Tracy's CC's are more of a system and not just a aluminum can with a lawn mower filter in it.
 
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#23 ·
Our is right on top of the valve covers. I'm sure there is just the stock baffle. Which wouldn't be any type of separator.
 
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#25 ·
Added my new simple/basic install setup, Bucket1952's bracket mount option, link to PDF of the bracket mount back plate.



Captured between oil changes (10K) no dyno pulls, no racing, no hard runs, just daily driving and highway runs. It would have been worse without the use of the full synthetic oil. These cars need the dual valve catch cans.

Running Amsoil Signature Series 5w-30 oil to help with vapor and added protection.



 
#26 ·
With the simple/basic set up, you no longer need the clean side separator? Or the additional hose running to your air filter box? Did you use the standard push-lok hose? Sorry for all the questions, seriously considering installing one on my vehicle. They are on sale right now for $389, not too bad...
 
#27 ·
Correct the clean side stays intact/factory. No need to relocate the map sensor, extra hose or clean side separator.
 
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#28 ·
I'm having difficulty visualizing the pipe that is tapped. Is that a turbo inlet pipe for the back side turbo or a charge pipe from the turbo? Is the wall thickness great enough or is it recommended to add some plastic epoxy to strengthen it?

Seriously contemplating changing mine to go this direction!
 
#29 ·
It is the inlet tube going from air filter to the turbo. Generally you want to tap that tube as close to the turbo as possible. (The place I tapped it was easy to get to reach but I could have tapped it closer to the turbo.) This line provides continues crankcase evacuation when the engine comes up on boost and the intake inline valve closes to prevent boosting the CC. This is where the dual valve system has an advantage over the single loop systems which shut down when you are on boost and actually is when your system is being run the hardest. The tube pressure drops creating a vacuum allowing the engine to continue to ventilate.
 
#31 · (Edited)
I wanted to share my experience with the install of my catch can so that others know the quality of this product and how Tracy stands behind it.

Cliff notes: If you are having idle issues with the high performance check valve, you need to install an additional flow control valve.

In installed my catch can late summer early fall. For the first month, it performed as expected (flawlessly). About a month into it, I started running into problems with random idle issues and engine stalling. I narrowed it down to the high performance check valve between the catch can and the throttle body. In some instances, the ball would start to pulsate or swirl causing erratic idle and in severe cases, stalling. The car would always restart immediately. I spoke with Tracy and we chalked it up to a bad check valve. His stock was depleted and he was waiting for a new shipment to come in and offered to send a standard check valve. Being as that I was tuned, I didn't want to risk blowing apart the low pressure check valve and offered to wait.

A couple days later, a new high performance check valve arrived in the mail. To this day, I wonder if he pulled it from his personal vehicle as he told me he was completely out of them(that's the kind of guy that Tracy is!). I installed it and was back in business again! The car ran great for the next few weeks and the idle issue returned. Talking to Tracy again, we reviewed my setup with photos, double checking everything. We speculated that it's possible that I had gotten two bad check valves as he has several hundred of these systems installed and had never seen this issue. A third check valve was sent and installed.

About a month later, the problem returned. Starting to get a little frustrated, I was surprised when Tracy returned my call well after shop hours to help me troubleshoot it. We talked through a couple of scenarios and determined that the flow through my check valve may be the issue. He immediately sent a PCV valve to install prior to the check valve. I installed it immediately and the problem subsided again with one of the suspect check valves installed.

During this time, we found a couple of other folks that were having the same problem with the FFS. For whatever reason, some of our cars seem to have a little disagreement with the high performance check valve and require the additional flow control valve. So far everything is working well on my car! My speculation is that the additional flow control valve slows down the flow of air through the check valve to prevent it from swirling and causing the idle issues. To put it another way, my car just sucks more than others and needs to be restricted!

I specifically want to call out Tracy Lewis and thank him for his help on this! Many vendors would have blown it off as an install or application error. Tracy worked through the issue with me and went above and beyond what I would have expected from a vendor. If you have any doubts, I would cast them aside. This truly is a great product and does what it says it does. I'm getting more oil out of this than my previous AOS. This tells me that the TL catch can is more efficient at separating the oil.

I also want to than Oreo for his help on this issue as well! I was able to pick his brain on his install since we are both tuned and he was very helpful while I was troubleshooting the issue!
 
#34 ·
To my knowledge there is not. With the original setup there is no drilling or taping of the back plastic inlet tube. With the original setup you have to relocate that MAP sensor and run extra hose and add the clean air separator filter to CAI or plumb into factory box.



On a side note:
I talked to Mike with Eco Power Parts about his inlet pipe during the design phase and has added the option for a 3/8" NPT thread bung on the rear/firewall side Intake/Charge Pipe for catch can users.
 
#35 ·
OREO, makes sense.

Not to beat this more than needed, however, I noticed when re-reviewing the FORDTECHMAKULOCO install video (Post #5 in this thread), that he encourages tapping both turbo inlet pipes (explanation starts at 4:59 with schematic diagram, go to 6:35 for tapping both inlet sides) to get vacuum under boost conditions from both sides. He does say you don't have to do that, however, he seems to indicate a strong recommendation to do so, yet doesn't expand or explain it further as to why(?)... perhaps its to balance out any pulse conditions that might be present under boost from one side at a time, or somehow impacting the balance of boost available when comparing bank 1 to bank 2.

I'm still wondering if there might be impacts (negative) if we just tap the back inlet like in the Simple / Basic install,... Maybe I'm being too picky as perhaps any real world impact would really be too small to matter... your thoughts?

Thanks
MagneticSport
 
#36 ·
Tapping both inlet pipes gives you a redundancy that should ensure you are pulling vacuum while under boost. With that being said the vacuum from the two lines should be fairly equal and added the second line will not increase the amount of vacuum.
 
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