stock camshaft specs? - JeepForum.com
 
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post #1 of 5 Old 12-29-2009, 02:35 PM Thread Starter
DanZ51
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stock camshaft specs?

Does anyone have any info on factory camshaft specs? In particular 2004, but I'd imagine any of the F.I. engines would be the same or similar.



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post #2 of 5 Old 12-29-2009, 03:12 PM
GOLENJEEPTJ
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For curiosity... why?
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post #3 of 5 Old 12-29-2009, 04:53 PM
Unlimited04
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The stock '96 and later Jeep 4.0 camshaft is a dual pattern cam with the following specs:
Advertised duration int./exh.: 256.0/260.0 deg
Duration @ 0.050" lift int./exh.: 188.0/192.0 deg
Valve lift int./exh.: 0.408"/0.414"
Lobe separation angle: 107 deg
Intake centerline angle: 114 deg
Valve overlap (advertised): 43 deg
IVO: 20 deg ATDC (0.050" lift)
IVC: 28 deg ABDC
EVO: 16 deg BBDC
EVC: 4 deg BTDC

Sourced from here: http://jeep4.0performance.4mg.com/tech_specs.html
Another source showing almost every cam for the 4.0L/4.2L: http://www.angelfire.com/my/fan/Jeep4.0Camshafts.htm

Last edited by Unlimited04; 12-30-2009 at 09:37 AM.
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post #4 of 5 Old 12-29-2009, 04:59 PM
never monday
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changing cams won't help much

regearing is more effective
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post #5 of 5 Old 12-30-2009, 09:32 AM Thread Starter
DanZ51
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WOW Thanks Unlimited04. I knew someone would have this info. I tried searching for this info and came up empty.

As for the other "tools".....
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