What pistons in a 93 RA

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14 September 2007, 12:45 PM

T5OLF

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What pistons in a 93 RA

Are they cast or forged????

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14 September 2007, 01:49 PM

exvaux

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supposed to be forged,wrx were cast but dunno if that was an urban legend

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14 September 2007, 02:11 PM

T5OLF

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Yeah I heard they were supposed to be forged but someone told me they aren't. I'm looking to turn the boost up/remap from 1.23 to 1.4ish but don't want to risk a melt down.

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14 September 2007, 02:13 PM

banny sti

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A WRX RA will have cast pistons only the STi's came with the forged pistons.

Banny

Last edited by banny sti; 14 September 2007 at 02:17 PM.

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14 September 2007, 02:26 PM

T5OLF

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Cheers banny

any idea what cast pistons will stand boost wise??

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14 September 2007, 02:33 PM

banny sti

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Best off checking with your mapper but i would not want to go beyond 1.4bar

Banny

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14 September 2007, 02:47 PM

T5OLF

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Cheers mate

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14 September 2007, 03:40 PM

rossyboy

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Andy F didn't seem to have a problem running my oe '93 WRX pistons at 1.5 bar peak, dropping to 1.4 bar.... The car hasn't complained about it yet either after 4k miles.

That includes 4 rolling road runs where it managed to top 1.55 bar at one point.