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Location:
Canberra
Registered:
May 2002
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Re: Cam gear effectiveness on stockish motor?
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Fri, 04 February 2005 06:22
 
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I have played with the adjustable gears on my 4AGTE with stock cams, and agree with Rod that the seat of the pants dyno can make it feel a lot stronger (and it probably was in the last 1500rpm), but have a detrimental effect on power at the lower end of the revs. 
I advanced my inlet cam 5 degrees, and retarded the exhaust 3 degrees, which made boost come on later in the rpm, and power to hit very savagely at around 4500rpm, then scream to redline.
Whilst this was not done on the dyno, several 400m acceleration runs were measured before and after, and with the adjusted cam timing, terminal speed at the end of 400m was down by 6mph (10kph), reflecting the fact that its all about power under the curve, not peak 
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| | Subject | Poster | Date |
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Cam gear effectiveness on stockish motor?
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Celia-Sue | Thu, 03 February 2005 06:35 |
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Re: Cam gear effectiveness on stockish motor?
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bunkyT18 | Thu, 03 February 2005 07:06 |
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Re: Cam gear effectiveness on stockish motor?
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Celia-Sue | Thu, 03 February 2005 07:10 |
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Re: Cam gear effectiveness on stockish motor?
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YelloRolla | Thu, 03 February 2005 07:18 |
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Re: Cam gear effectiveness on stockish motor?
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ed_ma61 | Thu, 03 February 2005 07:45 |
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Re: Cam gear effectiveness on stockish motor?
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Celia-Sue | Thu, 03 February 2005 07:57 |
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Re: Cam gear effectiveness on stockish motor?
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Silver_r33 | Fri, 04 February 2005 00:00 |
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Re: Cam gear effectiveness on stockish motor?
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Stenno | Fri, 04 February 2005 01:50 |
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Re: Cam gear effectiveness on stockish motor?
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YelloRolla | Fri, 04 February 2005 02:18 |
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Re: Cam gear effectiveness on stockish motor?
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thetoyman75 | Fri, 04 February 2005 03:04 |
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Re: Cam gear effectiveness on stockish motor?
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Stenno | Fri, 04 February 2005 03:46 |
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Re: Cam gear effectiveness on stockish motor?
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thetoyman75 | Fri, 04 February 2005 05:42 |
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Re: Cam gear effectiveness on stockish motor?
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TE72_Turbo | Fri, 04 February 2005 06:22 |
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Re: Cam gear effectiveness on stockish motor?
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MS-75 | Fri, 04 February 2005 19:20 |
