We have built many 500 hp 13brew engines using the mazda 2 piece seal with very little if any issue. If you have properly balanced internals you should have no issue, I have had many issues with the 3 piece mazda seals though. If you look at rats 10 second Fc with a small street port and 2 piece mazda seals you will see a reliable engine that has made over 500 hp to the wheels(over 600 at the crank) for 3+ years
Thanks for sharing that with us though, always nice to know what a master like re amemiya is doing .
Last edited by glenrx7; 11-26-2008 at 12:43 AM.
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