2001 cam upgrade?
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Joined: Nov 2011
Posts: 133
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From: Chicago
Year: 2001
Model: Cherokee
Engine: 4.0
Originally Posted by CobraMarty
The head, intake manifold and throttle body are all flow restricting. And if you have an AUTO, the trans will shift at 4800-4900rpm so there is no point in building/or camming an engine to make more power at a higher rpm range. This is why the stock cams with the 1.7 roller rockers are near ideal with stock head and intake maniflod.
Thanks for getting back so quickly
So what about one with in the lower power band? Or am I just pushing my luck with a cam until I crank and bore?
Yea it's me. IMHO stick with the stock cam and it will make peak power just below 5000rpm. You are not ever reving above 5000rpm with auto or 5200 rev limiter for the manuals, why cam up and shift the power curve higher in the rpm range?
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Joined: Sep 2010
Posts: 4,968
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From: Salt Lake City, UT
Year: 2000
Model: Cherokee
Engine: 4.0L
Glad to hear its running well!
does yours have the cats in the manifold? if not you have a few options, if it does then I wouldn't bother until one goes bad.
does yours have the cats in the manifold? if not you have a few options, if it does then I wouldn't bother until one goes bad.
Last edited by Gorillaxj; Mar 3, 2013 at 11:14 PM.
Thread Starter
Member
Joined: Nov 2011
Posts: 133
Likes: 2
From: Chicago
Year: 2001
Model: Cherokee
Engine: 4.0
Thread Starter
Member
Joined: Nov 2011
Posts: 133
Likes: 2
From: Chicago
Year: 2001
Model: Cherokee
Engine: 4.0
I don't think so. I have checked before but I can never quite remember. I just don't recall being able to see them
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Joined: Nov 2011
Posts: 133
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From: Chicago
Year: 2001
Model: Cherokee
Engine: 4.0
Nothing too crazy as far as results go. However, it feels worth it because though there is no slap you in the face gains, everything (low end,high, idle, etc) feels quieter, tighter, and slightly quicker. All of that adds up so an overall much happier felling/sounding engine
I would definitely do it again
Last edited by Blood Of An Akrobat; Mar 6, 2013 at 07:01 AM.
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