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Benefits of Porting/Polishing Throttle Body?

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Old 06-12-2009, 07:05 PM
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Benefits of Porting/Polishing Throttle Body?

OK, so I've searched this forum multiple times without success in finding much data on the following:
Is there benefit to porting our throttle bodies? I have heard they are extremely sensitive and can get knocked out of whack fairly easily, so maybe theres too much risk to justify any gains?

Has anyone done this, found gains, and not messed up idle or engine performance/calibration?
Old 06-12-2009, 09:13 PM
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mines does it for various cars including the new gt-r. I haven't seen a 350z or a g35 with this done though...
Old 06-12-2009, 10:45 PM
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I know one guy who did it... he ended up replacing his throttlebody as a result. $700

You really gotta know how to avoid damaging it and even then, it doesn't do anything.
Old 06-13-2009, 07:47 AM
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Check Last I was there they said it has no gains at all.
Old 06-13-2009, 12:45 PM
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Originally Posted by Hydrazine View Post
I know one guy who did it... he ended up replacing his throttlebody as a result. $700

You really gotta know how to avoid damaging it and even then, it doesn't do anything.
But how can you say such a thing if you've never personnally tested it on your very own car??????? j/k I agree. No gains.
Old 06-14-2009, 11:25 PM
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+1 ^

No Gains, if I'm correct the only way to gain anything from a mod like this would be to buy a larger TB which I don't believe anyone even makes for the G. The high price would most likely make it pointless for any gain you would see...
Old 08-22-2009, 02:40 AM
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I think you get about +10 hp when u polish your throttle body

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