Rank: Member
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Joined: 2/04/2006(UTC)
Posts: 171
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Hi Fellas,
I have a 202 with mild cam, standard head and ww Stromberg carbi in a GTR. I had extractors fitted years ago and tossed the headers. The bloke who fitted the extractors put a couple of ugly bends in the pipe to get past the cross member and sway bar and I have always wondered what effect these have on flow.
I am wondering whether I might as well return to headers. They come up on ebay occasionally. What effect would this have on power - torque and economy?
I'm wouldn't do this just to return to original. Mind you, if anyone knows where I might find a 173S block please let me know. I've still got the 173S head.
Thanks Fellas
David
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Rank: Veteran
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Joined: 2/06/2006(UTC)
Posts: 1,664
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why are the extracots bent....arnt they the right ones
if the bend is to bad (blocking flow)
i would change it....extractors are better.....
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Rank: Member
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Joined: 2/04/2006(UTC)
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He bent the exhaust pipe, not the extractors. He had to bend the pipe to get past the cross member and sway bar. Not much room!
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Rank: Veteran
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Joined: 22/05/2005(UTC)
Posts: 1,384
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Still no reason why a good exhaust place couldn't change the pipe some way to have good bends. There are a LOT of GTR's with extractors, and I have never seen one with bad bends in the exhaust yet.
I would keep the extractors on. |
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I remember an article in CVT (I think) many years ago on this. Can't remember engine size, but it was a red 6. The winner was the standard exhaust manifolds, but it required dyno work to figure it out. From memory they were adjusting the point at which th |
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