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Old 09-03-2019, 04:35 PM   #41
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Join Date: May 2016
Chapter/Region: BAIC
Location: W Sac, CA
2016 WRX (traded)
2019 STI CWP


Originally Posted by neg_matnik View Post
Yes, FA20 and FA24, share the same stroke and same rod length. So, rod-to-stroke ratio is identical; except that FA24 has larger and, potentially, heavier pistons.
So, I'd say FA24 may not want to rev quite as well as FA20 depending on how much heavier its pistons are.
Anything is possible depending on what Subaru does.. The E257 has 99.5mm pistons. The EJ207 has 92mm pistons with a 8k+ rpm redline. The GT3 has 102mm pistons with a 9k rpm redline. Anything is possible with enough money and engineering
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