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thetoyman75 Forums Junkie Club President I supported Toymods Location: Sydney Registered: May 2002	Re: what cams for 4AGTE?? big or small duration? Thu, 27 February 2003 23:20 mmm The Mythical world of Turbo Cam Profiles. There are two schools of though that I am familiar with in relation to Turbo Cams. First of all tho a Cam is a cam be it Turbo or N/A so there are always trade offs. There is no such thing as a Cam that will Yield a Great bottom end and Top end power. Ray Hall uses the theory that the Best Turbo Cam is a Mild Rally N/A Cam and claims that in his experience you just add 1000rpm to the advertised power band and that is what you will generally get. The reason for the Rally cam preferance has been mentioned before.... Overlap ! you really don't want Valve overlap in a Turbo application, BUT overlap is a Killer at LOW RPM more than High RPM so I don't think thats your Problem. In Short LIFT Good, Overlap BAD I also Can't see your Valves "Bouncing" or sealing Badly with all that pressure (Boost) trying to force them closed ! BUT 4AGE Cams do have a reputaion as being kinda shithouse at any sort of regular High RPM or increased lift. But Hey your Using Stock Cams anyway ! If it were me I would suspect you are suffering from wastegate Creep. Are you sure your wastegate isn't being forced open slightly but the higher Boost pressures ? This is a Fairly Common Problem when Turning up the Boost and Not upgrading the spring tension on the actuator. Hell most actuators are designed to hold around 5-7 PSI, NOT 14 PSI. I'd start there OH and the 4AGE may only be a 1.6 but the air Velocity due to it Being a 16V engine is more than enought to manage a CT26 IMHO. And Last Thing I Have a Ballbearing Turbo of a Nissan R32 Skyline for sale. It is the Series 2 GTR32 Turbo so will Hold 14 PSI not 12 PSI has a Different Angle Cut on the compressor wheel and has the Rarest AR combination ! Cost me $650 will sell for $600 or Near offer. And yes it is a Ceramic Wheel ! For details see the other Thread so not as to Hijack this one ! http://www.toymods.org.au/msgboard/index.php?t=msg &th=10451 Hope that helps [Report message to a moderator]

	Subject	Poster	Date
	what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 08:59
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Mon, 24 February 2003 11:12
	Re: what cams for 4AGTE?? big or small duration?	FLY PSI	Mon, 24 February 2003 11:27
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 11:37
	Re: what cams for 4AGTE?? big or small duration?	FLY PSI	Mon, 24 February 2003 11:42
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Mon, 24 February 2003 11:42
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 11:56
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Mon, 24 February 2003 12:02
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Mon, 24 February 2003 12:09
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 12:18
	Re: what cams for 4AGTE?? big or small duration?	FLY PSI	Mon, 24 February 2003 12:23
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 12:27
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Mon, 24 February 2003 12:27
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 12:32
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Mon, 24 February 2003 12:33
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Mon, 24 February 2003 12:36
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Mon, 24 February 2003 12:42
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Mon, 24 February 2003 12:48
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Mon, 24 February 2003 13:08
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Mon, 24 February 2003 13:18
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Mon, 24 February 2003 13:29
	Re: what cams for 4AGTE?? big or small duration?	RobertoX	Tue, 25 February 2003 02:46
	Re: what cams for 4AGTE?? big or small duration?	oldcorollas	Tue, 25 February 2003 03:15
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Tue, 25 February 2003 08:37
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Tue, 25 February 2003 09:09
	Re: what cams for 4AGTE?? big or small duration?	feral4mr2	Tue, 25 February 2003 09:57
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Tue, 25 February 2003 10:38
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Tue, 25 February 2003 11:30
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Tue, 25 February 2003 12:34
	Re: what cams for 4AGTE?? big or small duration?	feral4mr2	Tue, 25 February 2003 12:42
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Tue, 25 February 2003 13:46
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Tue, 25 February 2003 13:47
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Tue, 25 February 2003 21:15
	Re: what cams for 4AGTE?? big or small duration?	Sprinta	Wed, 26 February 2003 14:28
	Re: what cams for 4AGTE?? big or small duration?	roger	Thu, 27 February 2003 03:44
	Re: what cams for 4AGTE?? big or small duration?	BigWorm	Thu, 27 February 2003 05:36
	Re: what cams for 4AGTE?? big or small duration?	thetoyman75	Thu, 27 February 2003 23:20
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Fri, 28 February 2003 11:30
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Sat, 01 March 2003 11:57
	Re: what cams for 4AGTE?? big or small duration?	TE72_Turbo	Sat, 01 March 2003 12:32
	Re: what cams for 4AGTE?? big or small duration?	mrshin	Sat, 01 March 2003 12:43

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