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Old 08-22-2019, 12:20 AM   #26
adam99
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Catted or catless exhaust? If it is catless with the combo of header and intake then it will 100% creep. If you are then get you wastegate ported or just go with socal v3 or fp blue.
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Old 08-22-2019, 05:51 AM   #27
dreew
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Good luck with your build. I had to recently rebuild my 2015 FA and went thru all of this and used similar parts. After my build the car never sounded the same and i kind of have PTSD thinking that that little tick i hear sometimes is going to be another motor i cant afford.
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Old 08-22-2019, 09:37 PM   #28
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Quote:
Originally Posted by WRXnick16 View Post
You won't need a new clutch with your low mileage and power levels. Obviously you'll need to look for an upgrade if you go with a larger turbo and start pushing higher power levels later on. It really just depends on your plans for the car and if you would rather replace it now while the engine is out or wait and pay the labor cost again down the road.


The tuner said stock fueling is holding me back. Said the stock turbo has more power to offer. Just getting the fuel now is the bottle neck.
I might keep the stock clutch for awhile. And see how things go.
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Old 08-22-2019, 09:39 PM   #29
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Quote:
Originally Posted by adam99 View Post
Catted or catless exhaust? If it is catless with the combo of header and intake then it will 100% creep. If you are then get you wastegate ported or just go with socal v3 or fp blue.


I have a HFC on the J Pipe.
The exhaust is all straight piped with muffler deletes.
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Old 08-22-2019, 09:42 PM   #30
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Quote:
Originally Posted by dreew View Post
Good luck with your build. I had to recently rebuild my 2015 FA and went thru all of this and used similar parts. After my build the car never sounded the same and i kind of have PTSD thinking that that little tick i hear sometimes is going to be another motor i cant afford.

Thank you.
Itís an expensive hobby. Thatís for sure.
The rod knock was the worst sound I have ever experienced with any engine. One I will never forget.
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Old 08-22-2019, 11:20 PM   #31
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Quote:
Originally Posted by bluewrx2018 View Post
The tuner said stock fueling is holding me back. Said the stock turbo has more power to offer. Just getting the fuel now is the bottle neck.
I might keep the stock clutch for awhile. And see how things go.
You may want to get a second opinion on the fueling. I've seen numerous builds on ethanol pushing over 400whp without any fueling issues. I actually saw a post about a 580whp build the other day and the tuner (stimikey) commented that they finally ran out of fuel and will have to install a port injection system to push further.

The FA20's direct injection system can flow a lot of fuel. It's just the HPFP that doesn't do well with ethanol mixes over E60.
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Old 08-23-2019, 07:28 PM   #32
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Originally Posted by WRXnick16 View Post
You may want to get a second opinion on the fueling. I've seen numerous builds on ethanol pushing over 400whp without any fueling issues. I actually saw a post about a 580whp build the other day and the tuner (stimikey) commented that they finally ran out of fuel and will have to install a port injection system to push further.

The FA20's direct injection system can flow a lot of fuel. It's just the HPFP that doesn't do well with ethanol mixes over E60.


Itís definitely the HPFP. Thatís what he said I needed to upgrade.
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Old 08-23-2019, 07:33 PM   #33
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I also want to put this out there for everyone with a EJ or FA. An AOS is a must. My tuner stated relieving the crankcase pressure could prevent issues with these engines. If you are doing any modifications do yourself a favor a install a AOS. Small price to pay initially that could save you big money in the long run.
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Old 08-24-2019, 06:05 AM   #34
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Quote:
Originally Posted by bluewrx2018 View Post
I also want to put this out there for everyone with a EJ or FA. An AOS is a must. My tuner stated relieving the crankcase pressure could prevent issues with these engines. If you are doing any modifications do yourself a favor a install a AOS. Small price to pay initially that could save you big money in the long run.
Not sure what you mean here. All cars for a very long time now have pcv systems that relieve crankcase pressure into the intake. The aos is more or less just a filter.
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Old 08-24-2019, 12:24 PM   #35
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Quote:
Originally Posted by violentleaf View Post
Not sure what you mean here. All cars for a very long time now have pcv systems that relieve crankcase pressure into the intake. The aos is more or less just a filter.
Right but when you explain it like that the tuner cant make money selling one to you.
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Old 08-24-2019, 12:32 PM   #36
adam99
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Quote:
Originally Posted by GlarryHoodDIT View Post
Right but when you explain it like that the tuner cant make money selling one to you.
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Old 08-24-2019, 01:11 PM   #37
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Quote:
Originally Posted by bluewrx2018 View Post
Itís definitely the HPFP. Thatís what he said I needed to upgrade.
Quote:
Originally Posted by GlarryHoodDIT View Post
Right but when you explain it like that the tuner cant make money selling one to you.
There's no need to upgrade the HPFP unless you plan on running over 500whp (not happening on the stock turbo). Otherwise, the only limitation is that you shouldn't run over an E60 blend on the stock HPFP, but you won't gain much (if any) power going above that.

An AOS is far from necessary for a daily driven street car. Its main purpose is to help reduce blow-by gasses and oil from making its way into your intake tract & forming a thin film in your intercooler. This becomes more important if you track your car and see sustained boost & rpm or if you're running flex fuel. Think of it as more of a preventive maintenance item.

Between the HPFP and AOS comments, I'd be questioning if the tuner is just trying to make more money off of you and/or how much experience they have with the platform. Are you planning on running straight E85 or flex fuel?
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Old 08-24-2019, 06:30 PM   #38
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Quote:
Originally Posted by violentleaf View Post
Not sure what you mean here. All cars for a very long time now have pcv systems that relieve crankcase pressure into the intake. The aos is more or less just a filter.


I know what it does. After spending the money I am spending a 400 dollar part is piece of mind.
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Old 08-24-2019, 06:32 PM   #39
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Quote:
Originally Posted by GlarryHoodDIT View Post
Right but when you explain it like that the tuner cant make money selling one to you.


Iím in sales so I get it. Itís something I didnít want to omit from my build. Makes sense to have it.
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Old 08-24-2019, 06:48 PM   #40
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Makes sense to have it.
Not to me. 400$ that could have gone somewhere else, hope you sleep well at night.
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Old 08-24-2019, 07:26 PM   #41
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Not to me. 400$ that could have gone somewhere else, hope you sleep well at night.


To each there own. I sleep very well
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Old 08-26-2019, 07:43 PM   #42
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Just ordered the Perrin Front Mount Intercooler for this build.
I used coupon code SAVE10 on Perrinís site for 10 percent off. FYI.
Will keep you all posted once I buy more add onís to this build and engine build progress.
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Old 08-31-2019, 08:36 PM   #43
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ProCom has received all parts to start the engine build. It will start right after the Labor Day Holiday. Stay tuned.
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Old 09-03-2019, 07:18 PM   #44
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Couple pics of Perrinís Boost Controller





Couple pics of Perrinís AOS





Couple pics of Perrinís FMIC

Waiting on my boost tubes for the FMIC

All in all solid parts, well made and reasonably priced. Very good packaging.
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Old 09-10-2019, 09:17 PM   #45
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I added the TGV and EGR deletes to my build. Also added the Big Oil Filter Kit.
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Old 09-11-2019, 06:44 PM   #46
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Engine is back together. All thatís left is FMIC, TGV and EGR Deletes. The Perrin FMIC does require shaving the inside of the bumper FYI.
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Old 09-12-2019, 01:51 AM   #47
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Any idea why your FA20 grenaded? I rarely see issues like that on the FA20 in comparison to the EJ25. Following this build with interest as I hope to do the same!
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Old 09-12-2019, 07:33 AM   #48
KillerBMotorsport
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You need to add our pickup to the mix for improve oil flow to the pump. You'll see improved pressure as well as improved cam sync.

On another note, did you see check the condition of the OEM pickup? We had two shop cars have issues. One a pickup screen failure, allowing debris into the pump. The second was silicone EVERYWHERE on the pickup screen. Usually there are some pieces, but this was a lot; far more than I've ever seen on a Subaru engine before.

Something else I noticed you're looking to do a 'big' filter. I would recommend sticking with the stock one. You're not going to find an aftermarket one that flows as well AND has the same filtration capabilities. The OEM filters have super dense filter media which gives them the bet of both. High flow oil filters are usually TERRIBLE at filtering, which is why they flow so well. For example, a K&N 'high flow oil filter' filters down to 90 microns, whereas the factory filter goes down to 5 microns. Essentially the K&N should ONLY be used for real racing where the oil/filter is changed ever few passes, stages, or so many hours of use. NOT for an application that requires 'street' use longevity.

The most important thing with these engines as far as the lubrication system is assuring the supply is good, and oil temps are king. If those two are in check (and the engine is built right, quality tune, fuel, etc...), you should NEVER have a failure due to insufficient oiling.

Looking forward to seeing how your project progresses!
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Old 09-12-2019, 09:51 AM   #49
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I have nothing of value to contribute to this thread, but just wanted to say thanks for sharing the details. Interesting to see the progress.
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Old 09-12-2019, 09:42 PM   #50
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Quote:
Originally Posted by F1SC View Post
Any idea why your FA20 grenaded? I rarely see issues like that on the FA20 in comparison to the EJ25. Following this build with interest as I hope to do the same!


Not 100 percent sure why it blew. But Iím betting because of the OTS Cobb reflash I was running. Most definitely should have had it tuned.
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