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Cam and valvetrain longevity....??? low duration high lift...

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Old 10-02-2016, 03:46 PM
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Originally Posted by MILD THUNDER
..specd for a 500efi with dart 325 heads. 237/239 ..
Hey that's my Bob cam! Now the million dollar question is if I should fire it up and run it? Or pull it? I think I know the answer to this one. The thing that frustrates me the most is... last year when I started my project build several people referred me to him. I've built several engines over the years and never once did I run in to so many issues.
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Old 10-02-2016, 03:50 PM
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The RPM expected to run with those cams is 5800. I stressed many times on the phone with MK reliability was most important to me. Like most I don't have an open check book. The exhaust I am going to run is Gil dry.
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Old 10-02-2016, 03:59 PM
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Originally Posted by ICDEDPPL
Cam design is pretty easy at Marine Kinetics.


Dude you actually cracked me up. And here all this time we thought "what a big brain on Bob" and here he was just throwing darts and counting his money laughing at us. Wtf gentlemen.
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Old 10-02-2016, 04:00 PM
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I stressed reliability also... And it's been a nightmare...
Originally Posted by jsand117
The RPM expected to run with those cams is 5800. I stressed many times on the phone with MK reliability was most important to me. Like most I don't have an open check book. The exhaust I am going to run is Gil dry.
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Old 10-02-2016, 04:04 PM
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Originally Posted by Raizorsedge
Hey that's my Bob cam! Now the million dollar question is if I should fire it up and run it? Or pull it? I think I know the answer to this one. The thing that frustrates me the most is... last year when I started my project build several people referred me to him. I've built several engines over the years and never once did I run in to so many issues.
Honestly,,,, just take a look at tims and others. I wouldn't take a chance over 800.00 worth of cams. Next thing you'll be getting your cranks ground and new bearings and who knows what all else.
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Old 10-02-2016, 04:09 PM
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Where RMBuilder been??? You would think he would defend himself?
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Old 10-02-2016, 04:18 PM
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Originally Posted by Full Force
Where RMBuilder been??? You would think he would defend himself?
Busy having a moving sale...
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Old 10-02-2016, 04:57 PM
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Originally Posted by getrdunn
Honestly,,,, just take a look at tims and others. I wouldn't take a chance over 800.00 worth of cams. Next thing you'll be getting your cranks ground and new bearings and who knows what all else.
I only have a single. The thing that sucks is I just put it in the boat and almost have it ready to fire. It's been a big project. I did a complete bilge makeover, the engine, full hydraulic steering, K planes, and a new drive. I really wanted to get it up and running and play around with this new Holley HP EFI system. Oh well, I guess it's it's just another speed bump in the never ending project lol!
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Old 10-02-2016, 05:07 PM
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Pg 97. Near a Q&A record ?
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Old 10-02-2016, 05:12 PM
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The bigger surprise is everyone's getting along this time lol

My build thread may be longer not sure... I make heated threads but man the leading is intense haha
Originally Posted by SB
Pg 97. Near a Q&A record ?
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