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cam kit vs. roller rockers

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Old Nov 9, 2012 | 01:41 PM
  #16  
CobraMarty's Avatar
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From: PA KOTUFU!
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Originally Posted by Diesel
Nope.
And that's your 2 cents?

Originally Posted by cmartin2112
Hmmm, so a cam upgrade wont do ****? Thats weird...
Im assuming you are not trying to be hostile by telling me "I should not give advice on something". But this is a open forum and I can say what I want right? Even if its wrong... So wouldnt you rather argue with me about our diffrent point of views? Im not trying to be a a--hole, but come on Marty dont tell me I cant post my own views...
I never said that, nobody is argueing. I'm sharing what I have done and know. There are problems with bigger cams which can be avoided especially with EFI.
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Old Nov 9, 2012 | 01:43 PM
  #17  
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Originally Posted by Outlaw Star
The powerband can be moved higher or lower, not just higher.
So you put in a 'smaller' cam to move the powerband lower?
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Old Nov 9, 2012 | 01:44 PM
  #18  
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From: Lantana, Fl
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Originally Posted by CobraMarty
And that's your 2 cents?

I never said that, nobody is argueing. I'm sharing what I have done and know. There are problems with bigger cams which can be avoided especially with EFI.
True. EFI motors are sensitive on the duration specs.
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Old Nov 9, 2012 | 01:45 PM
  #19  
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From: Lantana, Fl
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Originally Posted by CobraMarty
So you put in a 'smaller' cam to move the powerband lower?
Negative. The powerband is dependant on the specs of each cam.
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Old Nov 9, 2012 | 01:53 PM
  #20  
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From: Valley Park, MO
Year: 1989
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Engine: 4.0L Renix Freshly Rebuilt!!
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Originally Posted by CobraMarty
And that's your 2 cents?

I never said that, nobody is argueing. I'm sharing what I have done and know. There are problems with bigger cams which can be avoided especially with EFI.
Understood. Once again not trying to cause any problems just wanted to clear the air.
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Old Nov 9, 2012 | 02:03 PM
  #21  
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Stock TB flows fine. Not like its going to change the AFR. Pointless.
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Old Nov 9, 2012 | 02:07 PM
  #22  
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Originally Posted by Diesel
Stock TB flows fine. Not like its going to change the AFR. Pointless.
True. Porting anything doesn't help unless you're at higher RPMs. If you're a Mudbogger then that would help. For DDs and trail rigs, you want low end power.
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Old Nov 9, 2012 | 02:34 PM
  #23  
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From: Lantana, Fl
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Cam selection is based upon engine usage. I.E. I bored and stroked my 258 block to 300cid. The cam is designed by me. I didn't really increase the lift but rather the duration to compensate for the larger bore size. So I get a smooth idle and the engine operates like a stock motor would. Im pushing what a 4.7 would but without having to overrev or redline the motor. There are a lot of professional engine building simulators/programs out there that allow you to "assemble" an engine to "test" your combination of chosen parts. Try using one such as Engine Dyno or Dyno Pro 2000.
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Old Nov 10, 2012 | 07:32 AM
  #24  
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Originally Posted by Outlaw Star
...The cam is designed by me. I didn't really increase the lift but rather the duration to compensate for the larger bore size.
What are the specs of your cam?
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Old Nov 12, 2012 | 08:21 AM
  #25  
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Originally Posted by CobraMarty
Get the Yella Terra 1.7 Ratio Roller rockers and a ECU tune. $500 + $250. Easy, reliable. I am sure you will like the results. A 62mm throttle body will also help.
You are still stuck with the long runer intake and poor flowing head but you will definately see a difference.
Don't mean to jack this thread!!, I was just browsing. But where or who can you get an ecu tune from? Do you mean a chip? Thanks
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