P4529340 Mopar Slant Six Cam info

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my68barracuda

my68barracuda

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Anyone have additional cam / valve timing info for this hydraulic cam other than what is shown on the box label?

761AB760-4B1E-41A8-9301-DF3CA63A9CEF.jpeg
 
What else do you need? there are cam event calculators online, not sure if MP use .050 or .006 as there baseline. use 108 as LSA

Wallace Racing - Cam Degree Calculator

IVO is 14.0 ° BTDC ( - indicates ATDC)
IVC is 46.0 ° ABDC
EVO is 50.0 ° BBDC
EVC is 10.0 ° ATDC ( - indicates BTDC)
Overlap is 24 °
 
[, not sure if MP use .050 or .006 as there baseline. °[/QUOTE]

and that is exactly what I am asking as a 240 duration at .050 is a much different cam than one with a 240 duration at .006

my guess is, since the cam is labeled as 'for mild competition' the 240 duration is at .006 looking for info that was not just another guess.

and if the 240 is at .006, would be nice to have the duration at .050 to get the ramp speed.
 
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a 240 @ .006 is ~ 185 @ .050 according to this, that's some weak sauce! If MP is advertising at .006, that's a joke.

Chrysler High Performance Cam Data

If they are advertising at .050, then we warm it up alot, comparable to a MP 284-ish spec. I ran a 284/.484 MP cam in a 340 and it was a nice cam with a 3.55 or taller rear. I would think that is what this cam profile is if its marketed as a performance cam.
 
No way its gonna be 240 @ .050 with only a .398 lift.

That cam is 240 @ .006. Pretty much a stock cam. Not sure why it's even marketed as a "mild competition" cam, unless they're talking about fuel economy competition.
 
pishta said:
a 240 @ .006 is ~ 185 @ .050 according to this, that's some weak sauce! If MP is advertising at .006, that's a joke.

Chrysler High Performance Cam Data

If they are advertising at .050, then we warm it up alot, comparable to a MP 284-ish spec. I ran a 284/.484 MP cam in a 340 and it was a nice cam with a 3.55 or taller rear. I would think that is what this cam profile is if its marketed as a performance cam.
Click to expand...

yea but is says in the text of the attachment...
" Duration @ .050” valve lift shown in the tables is 85% (.850) of nominal for high-performance cams, and 77.7% (.777) of nominal for OEM cams, per Chrysler. Duration @ .050” lift figures should only be used for comparison between MP cams. In some cases, more (potentially) accurate duration @ .050” figures appear as "Notes", with the source or author in parentheses.

So all of the Mopar purple shaft cams listed in the linked document the .050 is a number calculated as a fixed percentage of the quoted duration. That is not an accurate method to quantify the ramp on the lobe.

Thanks for the information, I plan to swap the P4529340 cam into the 83 D150 as a winter project. I will degree the cam then and post back on exactly what it is.
 
my68barracuda said:
So all of the Mopar purple shaft cams listed in the linked document the .050 is a number calculated as a fixed percentage of the quoted duration. That is not an accurate method to quantify the ramp on the lobe.
Click to expand...

Exactly. Using the multiply-the-listed-duration-by-.85 to calculate the duration at .050 of the big block 676 cam (272 duration, .455 lift), just for one example, you get 231 duration at .050. Actual @.050 duration for that cam is 224.
 
65 Cuda 340 said:
Exactly. Using the multiply-the-listed-duration-by-.85 to calculate the duration at .050 of the big block 676 cam (272 duration, .455 lift), just for one example, you get 231 duration at .050. Actual @.050 duration for that cam is 224.
Click to expand...
Exactly, wonder what Mopar Performance was thinking when they devised the ‘multiply by a percentage’ scheme instead of reporting the actual.050 value?
 
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