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Old Jun 9, 2007 | 03:03 PM
  #1  
ReAX's Avatar
ReAX
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Stock Cam Specs?

I am looking for info to compair these cam to the stocks Part Number:379601

<table align="center" border="1" cellpadding="6" cellspacing="0" width="550"><tbody><tr><td colspan="2"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td class="formTitlesLeft" width="20%">Valve Setting:</td><td class="formSubtitlesRight" width="14%">Intake</td><td class="formEntries" width="14%">.000</td><td class="formSubtitlesRight" width="11%">Exhaust</td><td class="formEntries" width="15%">.000</td><td class="formEntries" width="26%">HOT</td></tr></tbody></table></td></tr><tr><td colspan="2"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td class="formTitlesLeft" width="6%">Lift:</td><td class="formSubtitlesRight" width="29%">Intake @Cam</td><td class="formEntries" width="7%">300</td><td class="formSubtitlesRight" width="10%">@Valve</td><td class="formEntries" width="7%">550</td><td rowspan="3" class="formtext" valign="top" width="28%">All Lifts are based
on zero lash and theoretical rocker arm ratios.</td></tr><tr><td rowspan="2" class="formSubtitles"> </td><td class="formSubtitlesRight">Exhaust @ Cam</td><td class="formEntries" width="7%">300</td><td class="formSubtitlesRight">@Valve</td><td class="formEntries" width="7%">550</td></tr><tr><td class="formSubtitlesRight">Rocker Arm Ratio</td><td class="formEntries" width="7%">1.80</td><td class="formSubtitlesCenter"> </td><td class="formSubtitlesCenter"> </td></tr></tbody></table></td></tr><tr><td colspan="2"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td class="formTitles" width="16%">Cam Timing:</td><td class="formEntries" width="11%">VALVE</td><td colspan="3" class="formEntries">@.006</td></tr><tr><td class="formTitles">Lift:</td><td class="formTitles"> </td><td class="formSubtitles">Opens</td><td class="formSubtitles">Closes</td><td class="formSubtitles">ADV Duration</td></tr><tr><td class="formSubtitlesRight" width="16%"> </td><td class="formSubtitlesRight" width="11%">Intake</td><td class="formEntries" width="16%">14.0 BTDC</td><td class="formEntries" width="17%">54.0 ABDC</td><td class="formEntries" width="40%">248.0 °</td></tr><tr><td class="formSubtitlesRight"> </td><td class="formSubtitlesRight">Exhaust</td><td class="formEntries">67.0 BBDC</td><td class="formEntries">7.0 ATDC</td><td class="formEntries">254.0 °</td></tr></tbody></table></td></tr><tr><td width="73%"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td colspan="7" class="formTitlesLeft">Spring Requirements: Triple Dual Outer Inner</td></tr><tr><td class="formSubtitles" width="21%">Part Number</td><td colspan="6" class="formEntries">37830</td></tr><tr><td class="formSubtitles">Loads</td><td class="formSubtitlesRight" width="10%">Closed</td><td class="formEntries" width="7%">85</td><td class="formSubtitlesRight" width="9%">LBS @</td><td class="formEntries" width="9%">1.640</td><td class="formSubtitlesCenter" width="6%">or</td><td class="formEntries" width="38%">1 41/64</td></tr><tr><td class="formSubtitlesRight"> </td><td class="formSubtitlesRight">Open</td><td class="formEntries">195</td><td class="formSubtitlesRight">LBS @</td><td class="formEntries">1.110</td><td> </td><td> </td></tr></tbody></table></td><td width="27%"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td colspan="2" class="formtext">Recommended RPM range with matching components</td></tr><tr><td class="formSubtitles" width="78%">Minimum RPM</td><td class="formEntries" width="22%">1600</td></tr><tr><td class="formSubtitles" height="24">Maximum RPM</td><td class="formEntries">5500</td></tr><tr><td class="formSubtitles">Valve Float</td><td class="formEntries">6100</td></tr></tbody></table></td></tr><tr><td colspan="2"><table border="0" cellpadding="2" cellspacing="0" width="100%"><tbody><tr><td class="formTitles" width="16%">Cam Timing:</td><td class="formEntries" width="10%">VALVE</td><td colspan="4" class="formEntries">@.050</td></tr><tr><td class="formTitles">Lift:</td><td class="formTitles"> </td><td class="formSubtitles">Opens</td><td class="formSubtitles">Closes</td><td class="formSubtitles">Max Lift</td><td class="formSubtitles">Duration</td></tr><tr><td class="formSubtitlesRight" width="16%"> </td><td class="formSubtitlesRight" width="10%">Intake</td><td class="formEntries" width="15%">(4.0) ATDC</td><td class="formEntries" width="17%">36.0 ABDC</td><td class="formEntries" width="13%">110</td><td class="formEntries" width="29%">212.0 °</td></tr><tr><td class="formSubtitlesRight"> </td><td class="formSubtitlesRight">Exhaust</td><td class="formEntries">49.0 BBDC</td><td class="formEntries">(11.0) BTDC</td><td class="formEntries">120</td><td class="formEntries">218.0 °
</td></tr></tbody></table></td></tr></tbody></table>
 

Last edited by ReAX; Jun 9, 2007 at 03:15 PM.
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Old Jun 10, 2007 | 10:06 PM
  #2  
Johnny Langton's Avatar
Johnny Langton
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From: SE Texas
Awhile back I personally checked 10 sets of cams-both NPI and PI from both cars and trucks just to verify the OEM specs. Duration and centerlines are the same,lift is the only difference.

Non-PI:
Intake .462" lift/201 @.050"
Exhaust .462" lift/208 @.050"
114 intake C/L
113 exhaust C/L

PI:
Intake .507" lift/200 @.050"
Exhaust .534" lift/210 @.050"
114 intake C/L
115 exhaust C/L
The duration and centerlines are so close that I'll say the slight differences seen are production tolerances.


JL
 
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Old Nov 30, 2008 | 10:32 AM
  #3  
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Skoda
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From: Canada, ON New Market
very interesting info guys, no wonder the pi version heads have more power gains to them. I'am not stating the cams are the only reason but they sure do help

I probalby know the answer to this qeustion but have to be certain, are these cam specs the same for the V10?
 
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Old Nov 30, 2008 | 10:46 AM
  #4  
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Johnny Langton
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From: SE Texas
Originally Posted by Skoda
very interesting info guys, no wonder the pi version heads have more power gains to them. I'am not stating the cams are the only reason but they sure do help

I probalby know the answer to this qeustion but have to be certain, are these cam specs the same for the V10?
If you have a little time to kill-here's a good read on that PI-NPI subject and how the PI makes more power:
PI vs NPI-data - Modular Depot Forums
It took me along time to put all of that data together and do the comparisons. it's a bit of a long read,but worth it.
Everything I've seen indicates that the 6.8L uses the exact same cam lobes as the 5.4L and the 4.6L. Ford mass produces the lobes and the camshaft tubes and press-fits them for assembly and final griding to spec. They're not gonna waste time setting up their machinery to grind different lobe profiles when they control engine power/torque with the intake manifold design.
JL
 
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Old Nov 30, 2008 | 01:35 PM
  #5  
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Skoda
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Thanks for the link johnny

yes it is rather amazing how exhuast and intake sizing and flow along with tunned ramming have an effect on an engines power curve let alone feel to the driver, Though I know can get non pi heads to make more power then pi heads

when you posted the flow numbers do those cylinder heads still have the stock valve angles?

aswell were the pi heads ported along with the non pi heads? what I mean is are the flow numbers the results after both heads have been ported?

say you wouldn't happen to know what the 3v cam lift is would yea?
 
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Old Nov 30, 2008 | 04:10 PM
  #6  
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Johnny Langton
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From: SE Texas
Originally Posted by Skoda
Thanks for the link johnny

yes it is rather amazing how exhuast and intake sizing and flow along with tunned ramming have an effect on an engines power curve let alone feel to the driver, Though I know can get non pi heads to make more power then pi heads

when you posted the flow numbers do those cylinder heads still have the stock valve angles?

aswell were the pi heads ported along with the non pi heads? what I mean is are the flow numbers the results after both heads have been ported?

say you wouldn't happen to know what the 3v cam lift is would yea?
Yes,the flow numbers for both were ported,and my Non-PI head have the stock angles,etc. They've had new valves installed,good valvejob and port blending work,etc,etc,but they're not some special one-off racecar only piece.
Don't have any data on the 3V cams.
JL
 
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Old Dec 10, 2012 | 01:10 AM
  #7  
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Nathan28
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From: Hot Springs Arkansas
1986/302 f150

4x4 ford f150
 
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Old Dec 10, 2012 | 03:51 PM
  #8  
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blackout150
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Originally Posted by Nathan28
I got a jacked up 4x4 ford f150 with a stock 302 in it. i want to get more horsepower out of the motor so I've purchased a performance camshaft for it now i'm worried that it wont work with out changing the original valve springs. I don't want to have to bore if i don't have to. I put a Edelbrock four barrel 600 cfm carburetor on it to help it breathe better. The specs on the cam shaft i bought is: intake and exhaust duration is 244/244, intake and exhaust valve lift is 534/534, rpm range 2000 to 9000. I'm trying to get the horsepower out of the cam while still being able to use the original valve springs, Etc.! If any one knows what i may be talking about your response would be greatly appreciated!!!
First, your in the wrong forum for that info. Second, why in the heck would you pick a 2000-9000 rpm range cam for a jacked up 4x4? Your going to have no low end which is what you need. No way stock valve springs on a 302 are good for 9000 rpm's either.
 
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Old Dec 11, 2012 | 11:39 AM
  #9  
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Nathan28
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From: Hot Springs Arkansas
Ha Ha Ha

Man.... i been trying to find the place where i typed on the computer for about 6 or 7 hours!!!! forum huh, whats that? whats a thread???? I know what reply means.... How do i do an introduction thread; or is it called a post??? How am i supposed to post a post if there is no post button.... All this is so confusing.
Im eager to start but don't know how!!!! Thanks for sending that reply to my email because i would never have found it!!!!
 
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Old Dec 11, 2012 | 11:56 AM
  #10  
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Nathan28
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From: Hot Springs Arkansas
Blackout150

Hey man im going to find the right forum once i get this site figured out, my bad bro........ ima try not to muck up your page man. take care!!!
 
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