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Old 04-12-2008, 10:14 PM   #1
brian3676
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Default N/A 2.5rs motor build, pistons question

So i am about to build my 2000 impreza 2.5rs. but i wanna go all motor, so i want bigger compression pistons, anyone know a company who makes them the highest i can find is 9.1 i want more like 11.1 or 12. can u custom order then from CP has anyone done that? thanks brian
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Old 04-13-2008, 04:05 AM   #2
speed_freak27
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Check out techworks engineering.
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Old 04-13-2008, 04:09 AM   #3
Patrick Olsen
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Stock are ~10:1, so I'm not sure how the highest you can find are only 9:1.

TWE makes 11.2:1 pistons, so that may be the easiest place to check out.
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Old 04-13-2008, 11:15 AM   #4
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You must not be trying very hard to find them.
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Old 04-13-2008, 12:30 PM   #5
Storm
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A 3rd suggestion to look at TWE for hi-compression pistons.

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Old 04-14-2008, 12:23 AM   #6
Mr_Snips
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11.1:1...arent you gonna run into issues with pump gas?
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Old 04-14-2008, 01:49 AM   #7
Patrick Olsen
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Not at all. The Tribeca runs 10.7:1, and there a number of production cars that run even higher than that (Z06 - 10.9, M3 - 11.5, etc). I'll be running 10.8:1 when I finally get the parts in my garage turned into an engine.
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Old 04-14-2008, 02:06 AM   #8
brian3676
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wow twe makes a lot of nice parts it looks like! thanks for ur help, and i dont think so i have build a few motors with 11:1 and they all ran fine, just got to put preminum in em is all.
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