port and polished intake runners and lower plenum! - Nissan 350Z Forum, Nissan 370Z Tech Forums
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#1 (permalink) Old 11-16-2006, 03:28 PM
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iam looking to get more power from my 03 350z. i was wondering if anyone has had a port and polish done on thier lower plenum and runner(not head)???????? if so, where did you get it done, cost, and most important HP GAINS! THANK YOU!
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#2 (permalink) Old 11-16-2006, 05:22 PM
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I know some people have done it in the past, but I didnt follow up on the results.

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#3 (permalink) Old 11-17-2006, 01:29 PM
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My friend had his 350 ported and polished. It was pretty expensive and if I remember correctly, the gains were very minimal. He lives in Orlando and I haven't talked to him in a while, but I'll ask him more about it when I get a chance.

The garage:
2000 Acura Integra GS-R (sold in 2002)
2002 Honda S2000 (sold in 2004)
2003 Acura RSX Type-S (sold in 2005)
2003 Infiniti G35 coupe (sold in 2006)
2006 Nissan 350z
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#4 (permalink) Old 12-10-2006, 06:50 PM
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iam looking to get more power from my 03 350z. i was wondering if anyone has had a port and polish done on thier lower plenum and runner(not head)???????? if so, where did you get it done, cost, and most important HP GAINS! THANK YOU!
I did it on a few test vehicles... Not worth the effort at all.

It made a tiny 4HP blip about 500 RPM wide. The only saving grace was that it bliped right at the HP peak. So its only good for dyno bragging rights.
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