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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 03-28-2017, 05:09 PM   #15
twag4
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The question was poorly and lazily asked, not even gonna lie. I just want to hear some stories from the guys who have built or boosted their motors. Or both!
Mine is being built now. Should have the car back running in June or July.
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Old 03-28-2017, 05:21 PM   #16
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Just build the engine to 500 whp specs and then never go over 300 whp. It's fool proof!
You think k series motors are more reliable vs a fa20? Reliability wise.
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Old 03-28-2017, 05:28 PM   #17
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Mine is being built now. Should have the car back running in June or July.


Nice bro! hope everything goes well with the build are you planning to up the boost?

What internals did you end up going with?
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Old 03-28-2017, 05:36 PM   #18
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You think k series motors are more reliable vs a fa20? Reliability wise.
No...
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Old 03-28-2017, 05:49 PM   #19
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No...
lol I don't know bro...
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Old 03-28-2017, 06:47 PM   #20
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Nice bro! hope everything goes well with the build are you planning to up the boost?

What internals did you end up going with?
Gonna upgrade to a C38 compressor on my Jackson racing supercharger on a high boost pulley. Gonna do 8000-8400RPM (still trying to hash that out with the tuner, but engine builder says the engine will take it no problems with their machining, an oil pressure accumulator and gauges to make sure. tuner wants to go conservative 8000, but the supercharger can go 8400RPM safely so that is what I am hoping for) supposedly 16-24psi of boost is possible, I read that somewhere and not sure what it will really do. Forged manly turbo tough rods, wiseco forged pistons, big valve heads with piper cams(probably their stage 1 or two cams so as not to demolish bottom mid range power), Darton sleeved which also gives a closed deck(if you have seen these sleeves, they cannot walk or drop, not possible when block is machined to match), stepped deck, GSC valves and springs, I think that is all. I can't wait!!
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Old 03-29-2017, 10:12 PM   #21
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Bro.

I don't know bro. Perhaps the answer is already provided for you?

Bro...
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Old 03-30-2017, 11:52 PM   #22
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[ame="https://www.youtube.com/watch?v=rnfITOnrV48&spfreload=10"]Subaru brz turbo 3rd to 4th gear pull. - YouTube[/ame]
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Old 03-31-2017, 12:28 AM   #23
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Sorry guys for never responding!? But yo, how reliable would a built fa20 be for handing 8psi every day?
8 psi daily, you won't have to build your engine and it'd still be reliable. I've heard of a few people around my area with 50k miles boosted at around 8 psi. Personally I daily 9.5 psi stock engine. You'd only have to build your engine above like 12 psi.
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Old 03-31-2017, 06:55 AM   #24
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My car is completely stock except for all the mods.

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Old 03-31-2017, 09:19 AM   #25
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Did somebody say 'Bro'?

We all bros here!
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Old 03-31-2017, 10:20 AM   #26
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Lmaoooo bro... cmon. On the real, thank you all for the knowledge (and jokes), ive gained some much needed insight on this topic.

I have my tax refund just chilling and I was just thinking... why throw on a turbo kit to limited to "x whp" and still have a decent chance to bend a rod? Is it worth the hassle?

Isn't there a saying that goes, if it ain't broke don't fix it? Does that apply here? Lol

Also I came from the K-series motor and we all know those can handle 400whp with a built motor for plenty of years with no issues.

You guys think our motor is as reliable?

Anyone here have a high mileage built motor?
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Old 03-31-2017, 10:22 AM   #27
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Bro that's sick...
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Old 03-31-2017, 10:22 AM   #28
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Did somebody say 'Bro'?

We all bros here!
Bro
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