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-   -   Cam and valvetrain longevity....??? low duration high lift... (https://www.offshoreonly.com/forums/general-q/341258-cam-valvetrain-longevity-low-duration-high-lift.html)

getrdunn 10-02-2016 01:17 PM


Originally Posted by MILD THUNDER (Post 4487290)
Be interesting to build a database, on these "custom" cams.

Im sure everyone had to listen to speeches about area under the curve, exhaust port efficiency, rod angles, how tall decks suck becuase of the angles, and all the other reasons they need a custom tailored cam. And what they actually get, is a common cam everyone else is getting within a hair or two.


Should start a new thread called rmbuilder or Bob grinds and have all post their cam cards.

Baja Rooster 10-02-2016 01:44 PM


Originally Posted by Full Force (Post 4487311)
Still deciding if he's gonna get email with my pics, I would bet my life he's seen this thread, and still no response so it's most likely wasting my time...

Probably blame the oil system.

Full Force 10-02-2016 02:09 PM

Yea really... Well that's not an issue lol you lifters have axle ouling, also had lifters opened up to give more oiling to rockers, have 80 psi under way and 12 qt pans... Mom ouling issues here at all

Originally Posted by Baja Rooster (Post 4487321)
Probably blame the oil system.


ICDEDPPL 10-02-2016 02:48 PM

Cam design is pretty easy at Marine Kinetics.


http://33outlaw.zenfolio.com/img/s9/...70702380-4.jpg

vintage chromoly 10-02-2016 03:09 PM

^^^^^^^^^^^^
That's some funny $hit right there! :poopoo:

MILD THUNDER 10-02-2016 03:23 PM

Lolololol!

MILD THUNDER 10-02-2016 03:29 PM


Originally Posted by getrdunn (Post 4487317)
Should start a new thread called rmbuilder or Bob grinds and have all post their cam cards.

Maybe, i can have guys email me their combos and cam specs, and i can make an easy to read list. Easier to compare that way, plus, bob cant yell at them for putting it on the interweb

MILD THUNDER 10-02-2016 03:30 PM

Chit, i might have to open a dedicated email for this project.

endeavour32 10-02-2016 03:33 PM

1 Attachment(s)
Here is the card from my old engine I had Bob spec out.

439 CU
10.4:1 CR
Stealth Dual Plane
AFR 265 Ovals
Pro Systems 950

Never dyno'd the engine but based on the speeds I got it was a solid 530+ hp engine. Ran it for two seasons and then sold the engine. Either way here is the cam he designed for that engine.

[ATTACH=CONFIG]559953[/ATTACH]

Full Force 10-02-2016 03:34 PM

Omg hahahahhahaha

Originally Posted by ICDEDPPL (Post 4487334)
Cam design is pretty easy at Marine Kinetics.


http://33outlaw.zenfolio.com/img/s9/...70702380-4.jpg



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