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Old 16-06-2008, 09:00 PM   #1
ayeyew
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Default Polished intake manifold + throttle body..

Up on ebay

http://search.ebay.com.au/_W0QQsassZgurwinder351

claims around 18rwkw with both of them.

Would it be worth the investment?

It was for an EF, but never got fitted.

Will probably end up at around $600 for both of them. So about $30/rwkw

not bad

What does polishing the intake manifold and throttle body actually do? Does it just decrease the resistance to airflow or something?

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Old 16-06-2008, 10:38 PM   #2
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I dont see 18rwkw from that. Buy it and find out?
I can't see you netting any gains from any throttle body work.(unless force fed)
As for the manifold well.. I doubt it.

The only real way to make power over the standard manifold and throttlebody set up is to go for a 6 individual throttlebody setup. But at $4000+ makes it out of reach for most.
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Old 17-06-2008, 05:38 PM   #3
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im currently winning the bid for the Intake manifold so ill let you know if i win and how it goes...
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Old 17-06-2008, 07:16 PM   #4
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Damn i was outbid! should i go up more??? What should i be paying for something like this??? 32mins left!!!!!!!!!!!!!!!
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Old 17-06-2008, 07:26 PM   #5
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the TB is worth it, 200 bucks to get that done from someone (thats what ive been quoted, the manifold aint worth it, see what snort have on an upper manifold plenum ;)
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Old 17-06-2008, 07:29 PM   #6
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hmmm yeah u may be right...i might let this one go..sorry to hijack the thred ayeyew!!!! :
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Old 17-06-2008, 07:31 PM   #7
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hey josh the carby joint shaves the carbys to make them bigger for $120 and grechie did it and felt a difference so might be worth it.
cheers josh.
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Old 17-06-2008, 08:16 PM   #8
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SS Inductions stoped making the modded throttle bodies for the AU I6 because there was no power gain.
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Old 17-06-2008, 08:24 PM   #9
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Quote:
Originally Posted by Sleeperau
SS Inductions stoped making the modded throttle bodies for the AU I6 because there was no power gain.
And Ive seen first hand an aftermarket bigger throttle body put onto an EF and dyno run on the same day and there was 1-2rwkw right up high in the rpm range.
A bigger throttle body MIGHT gain something on a heavily worked 6, but not on a basic modded 6.
So it makes sence not to bother with one unless your going for every last rwkw possible.
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