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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-27-2017, 03:40 PM | #1 |
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FA 20 block power limit
Hi everyone, Nige here from the UK..
I have been looking around on the net for an answer to my query, but haven't got a definitive answer yet.. thought maybe someone here could help?? As some of you will know I'm building a track car and am going to turbocharge it. I have a GTX3071R but am being led down the path of getting something bigger, like a 3576 or 3582. So, my question is this.. what is the highest power levels tested on a stock Block. Not Pistons rods or crank, but the block. I believe the weak point is the open deck design, am I right.. is this where they fail? I reckon a 3576 will give 600hp.
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04-27-2017, 03:42 PM | #2 | |
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04-27-2017, 03:43 PM | #3 |
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While I have no first hand experience with this I know that typically on EJ motors when going for very high power they would go to a closed deck and sleeved setup. Not sure if this applys to the FA20 as much or at what point it would be needed.
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04-27-2017, 03:56 PM | #4 |
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04-27-2017, 04:11 PM | #5 | |
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They tried to built the FA20 but had trouble keeping it reliable and scrapped it after the first year IIRC. As far as your question goes. I think theres a few guys pushing 600+ on the stock block reliably.
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04-27-2017, 04:26 PM | #6 |
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04-27-2017, 05:23 PM | #7 |
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Thanks for the replies guys. Didn't Gushi run an EJ initially?
Beau Yates in Aus used the FA20 for a year then changed to 2J. The Vsport Aus car runs a built FA, but is nowhere near 500hp. So, do we think 600hp is safe on the stock open deck? I have read that the EJ is made of monkey metal, whereas the FA is better quality?
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04-27-2017, 05:28 PM | #8 |
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Local guy here has 500HP reliably on completely stock block
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04-27-2017, 05:36 PM | #9 |
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04-28-2017, 08:42 AM | #11 |
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The '17 manual only blocks have been strengthened compared to previous years.
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04-28-2017, 11:55 AM | #12 |
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I have read and seen guys on stock internals supercharged e85 running around 380hp to wheel. So 450 ish to the crank. Can our driveshafts handle 600+? I thought they would blow from the force.
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04-28-2017, 12:18 PM | #13 | |
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I'm not talking stock internals here, I am asking about the strength of the block. TBH I wouldn't put any more power through the stock internals, but then, I build my own engines.
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04-28-2017, 12:18 PM | #14 |
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Strengthened in what area and how?
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