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Location: sydney
Registered: November 2003
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NA cams in a 4agze
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Thu, 15 January 2004 20:05
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Can i just take my ones out and put the NA ones in or is there more to it?
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Location: Newcastle, NSW, Australia
Registered: May 2002
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Re: NA cams in a 4agze
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Thu, 15 January 2004 20:40

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Why would you want to? You will most likely lose power.
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Location: Bundaberg, Qld.
Registered: May 2002
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Re: NA cams in a 4agze
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Thu, 15 January 2004 21:30

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it's been done many times around the world with people 'saying' a deffintate noticable differene in mid to top end.
get early 3 rib 4age cams, the ones i had in my late '87 7 rib 4age are the same cam profile as my '88 4agze cams.
there was a thread about this not that long ago...
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Location: sydney
Registered: November 2003
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Re: NA cams in a 4agze
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Thu, 15 January 2004 23:08

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That's interesting
That means the one's that were in there before are the same as the one's in the gze. Spew'n
That's cool.
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Registered: March 2003
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Re: NA cams in a 4agze
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Thu, 15 January 2004 23:46

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what are the 3 rib cams of?
what about cam gears? anyone used any differ cam gears in a ze to get noticeable power
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Location: sydney
Registered: November 2003
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Re: NA cams in a 4agze
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Thu, 15 January 2004 23:51

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I'm thinking of getting custom made adjustable one's. They should definitely make more power with them.
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Location: Kita-Ku, Sapporo, Japan
Registered: January 2003
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Re: NA cams in a 4agze
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Fri, 16 January 2004 00:30

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they will only help if your cams are not timed properly..
the 'normal' power increase from adjustable cams is about the same as a 5ZIGEN sticker.... just a little less bang for buck..
get adjustables, book a day of dyno time, and see what you can do!! usually it will just allow you to move the power band around a bit, unless your cam timing is fucked to begin with.
Cya, Stewart
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Location: Newcastle, NSW, Australia
Registered: May 2002
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Club Member
Location: sydney
Registered: May 2002
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Re: NA cams in a 4agze
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Fri, 16 January 2004 05:28

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not to mention the hassle of re-shimming
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Location: Sydney
Registered: January 2004
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Re: NA cams in a 4agze
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Fri, 16 January 2004 05:51

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the NA cams have about 1mm extra lift than the SC sticks and longer duration
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Location: Brisbane
Registered: February 2003
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Re: NA cams in a 4agze
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Fri, 16 January 2004 12:07
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there's no point having the compressed-charge blown out the exhaust valve. is why turbo/SC-grinds are different to NA.
if it were turbo, you would shorten exhaust turbine life, i suppose for the supercharger, you're going to throw away power, by using the SC to stuff the exhaust full of fuel and probably shorter exhaust/CAT life
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