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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-28-2017, 12:56 PM | #15 |
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The stock block will last up to the HP level where it can't take it anymore. What that number is ranges from about 200 to 600 HP (if you believe the guys on here).
One may last to infinity and the next one pack it in when you go 1 HP over stock. There is zero reliable or accurate way to say "this is the number". Now my purely speculative number would be that they were engineered with a 30% or so safety blanket so I would GUESS about 300 as a relatively safe max.
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04-28-2017, 01:11 PM | #16 |
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04-30-2017, 08:22 PM | #17 | |
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Also, at one point (before the 2J), we ran a cosworth EJ25. That engine was only good up to 600 reliable whp. My 2J? 900HP easy. |
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04-30-2017, 09:12 PM | #18 |
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@SilverSkyline210 has his FA20 at 811 RWHP.
[ame="https://www.youtube.com/watch?v=POhOJCehKS0"]BRZ FA20 6466 turbo whp record 800hp 9000rpm - YouTube[/ame]
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04-30-2017, 10:37 PM | #19 |
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Thats so awesome. I love seeing the potential of the FA20.
Unfortunately, it wont last a day in my field. I can guarantee that. |
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05-01-2017, 02:35 AM | #20 |
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What kind of track are you running where you'd need 600hp? For most tracks, 350whp will be more than enough in our cars.
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05-01-2017, 02:40 AM | #21 |
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Because ...
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05-01-2017, 08:48 AM | #22 |
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Nige
potentially you could commission a stress analysis of the stock block based on the CAD model? I can provide a CAD solid for you if you wish any small engineering firm / stress analysts could probably do this probably take a weeks work? as with all of things aftermarket, it depends what you mean by 'reliable' as folks saying my 600whp set up has been running a year on the street with no issues..... this is not a good test as track use with slicks and downforce will be much more taxing compared to a very traction limited street setup where you rapidly run out of road to actually unleash all those ponies. I think Adrian at Fensport who's running about 550bhp and has been the last year on track is a good person to tap up for advice as that block is essentially stock, just de-burred a bit to remove the 'please break here' points |
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05-01-2017, 05:13 PM | #23 | |
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05-01-2017, 06:52 PM | #24 |
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05-04-2017, 08:40 AM | #25 | |
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I may be biased though, knowing that my supercharged will never be able to get me more than 300-350 to the wheel! |
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05-05-2017, 10:41 PM | #26 | |
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Make no mistake that block is FAR FROM STOCK |
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05-05-2017, 10:59 PM | #27 |
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Would like to know the bending moment of the rods if you happen to get an analysis done
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05-06-2017, 04:15 PM | #28 |
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The block itself is stock. Stock sleeves, stock bore
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