Crazy Lobe designs.. one soft as butter, the other murders Parts.

[@100amps]

Wow. Yeah, those two cams really illustrate the 2 extremes of that curve. That sudden corner looks like it would do some serious damage to everything in the system. It's hard to believe that anything could react that fast without just exploding. Cool stuff. Thanks!

[@PowellCams]

Absolutely, you're welcome 😊

[@MikePeter-Pro1racingLSR]

I used to watch a bunch of other channels. I'm down to two. Thanks Daniel. I'm learning a lot. God Bless you brother. You do it right and explain it best.🙏🏻🙏🏻✝✝

[@PowellCams]

I appreciate that

[@scotthatch4653]

I remember a deal ... i think about 10 years ago about hand grinding the base circle of a camshaft to get more lift ...was kinda a claimer thing ... thats the only way i can see that camshaft getting made ...

[@PowellCams]

Scary

[@edsmachine93]

I am sure it had some crazy valve loft. Both cams. No wonder it was murdering valve train components. A more conservative approach making every thing work together. Without reliability you have nothing but a money pit! Thanks for sharing Daniel. 👍🇺🇸👍

[@PowellCams]

@@edsmachine93 absolutely 💯

[@icetech6]

Thanks for making these videos... i have learned a ton from them

[@PowellCams]

@icetech6 you're welcome, glad it's helping !

[@chevyrc3623]

That's a crazy camshaft right there man but man that's crazy on whoever made that camshaft and thanks for sharing and just learning more and more as i go

[@PowellCams]

@@chevyrc3623 absolutely 💯

[@troy3509]

Thank you for doing these videos I have learned a lot from you

[@PowellCams]

@@troy3509 glad to do it!

[@russtuff]

I've never built a motor but I'm fascinated by this stuff. I'd be interested in a video about the lash numbers you mention as I'm not sure I understand what it means for the engine.

[@PowellCams]

We have some more videos covering that

[@stacy6014]

How to sell cams. We have the highest acceleration rate of anyone. Our cam will make the most power. Honest! It's in their new advertisement. This is a perfect situation where a spintron would prove that there is going to be problems. Great information Daniel

[@PowellCams]

Definitely

[@williammetcalf9801]

Thanks for sharing your none bs knowledge. I learn from every video. I like they way you deal with the keyboard warriors.

[@PowellCams]

@@williammetcalf9801 thank you!!

[@paulshurmon138]

Thanks for the video.

[@PowellCams]

You are welcome!

[@LP23D6]

That last one is a square lobe. It's either closed or open and then back closed again. . Crazy.

[@PowellCams]

@@LP23D6 yep, it's a mess

[@clintonsmith9931]

Love that potika, potika.

[@PowellCams]

Ty

[@georgedreisch2662]

Both sound like someone’s science experiment gone nuts…

[@PowellCams]

@@georgedreisch2662 probably was

[@jcnpresser]

I’d like to have you cam doctor in my sbf, but I need to put something in it in the meantime. I’m curious if you would know what it is. I’m stumped, kinda wonder if it’s a stock regrind. I’ve got to get something first though. It runs pretty good and sounds wicked.

[@PowellCams]

@@jcnpresser we can definitely check it

[@GhostSniper67]

3:10 I may be jumping ahead posting this early in the video, but question is. What is the purpose of these engines and how do they perform? Ex: Dirt car and fast or what? How do these oddities perform at the intended task?

[@PowellCams]

@@GhostSniper67 regardless of intended usage, there are parameters you must stay in for it to work.

[@johngover1455]

How much exhaust backpressure on the pulling engine? if it is 100psi manifold pressure, it may be quite high on the exhaust backpressure, making lighter exhaust springs ineffective to close the valve.

[@PowellCams]

That was my exact point

[@Anthony-nw5zv]

That engine must have been sounding like it was coming apart or about to.😮

[@PowellCams]

@@Anthony-nw5zv most likely

[@jeffcarpenter396]

Could it be an extremely high rpm cam old superstock or maybe a prostock cam

[@PowellCams]

@@jeffcarpenter396 no

[@MrBlackbutang]

Exper(mental) cam trying to get rebranded.

[@PowellCams]

Definitely

[@jmflournoy386]

murdering rockers check the geometry ,, heavy valves? 26 lash at the lobe?? Is that up the flank? how does it close, really hard? would love to see a spintron reminds me of the old "square" "stock" lobes" which also ate parts even with stock lift

[@PowellCams]

Most of that is covered in the video

[@duanebusch72]

what is major intensity of the fast lobe?

[@jeffcarpenter396]

Could it be some kind ofsuperstock cam

[@PowellCams]

A specific class doesn't fix a horrible design.

[@flinch622]

Exhaust... worried about pushrod deflection?

[@PowellCams]

All of the above

[@robertfontaine3650]

Super busy sounds like a good problem. Might be time for another apprentice in the shop. Seems like machining is a dying trade.

[@PowellCams]

@@robertfontaine3650 of only there were some willing candidates....

[@robertfontaine3650]

@@PowellCams If I knew then what I know now.

[@rolandotillit2867]

Ramp rate is basically the slope leading to the lobe center line, at .050" lift IIRC or whenever the valve comes off the seat. I'm sure someone will correct me.

[@PowellCams]

There is no such thing, the "slope" u refer to is called the main event, the "ramp" is right off the bc before the main event

[@rolandotillit2867]

@@PowellCams Different strokes for different folks. I decided to look it up, ramp rate is the slope from .050" lift or whenever the valve starts coming off the seat, to around .250" lift. Or at least that's what they call ramp rate. To you it's the main event, I can roll with that, sounds catchier.

[@RustyorBroken]

Please make sure the camera is recording when you talk to your boss about getting time off to go to PRI.

[@PowellCams]

Lol

[@69L88]

Check a correct OEM GM .030 .030 SBC flat tappet cam. Application was 1964 1965, 327 365HP, and 67, 68, 69, 302 290HP aka Z28! The ramps are slow and lazy like your exhaust lobe. I have the cam new in the GM tube, I have a report and graph generated on an Audie Cam Pro Plus. I would you a copy.

[@PowellCams]

Yeah, most of that old factory stuff was pretty slow, , feel free to email me a cpp file of it

[@jmflournoy386]

@@PowellCams Mopar are slow and really slow on the close especially the HP exhaust

[@MrBlackbutang]

Steve Morris cams are awesome! Low bounce exhaust lobe.have 100psi run boost on the intake you don’t need a crazy spring rate exhaust not crazy rate. Americans love to go the biggest is better bullshit. It’s not!

[@PowellCams]

I've never seen Steve make a camshaft?

[@MrBlackbutang]

@@PowellCams grinder my bad for all I know it could be you? Hoping you had happy thanksgiving bellies full of cheer 🐾🐾

[@PowellCams]

@MrBlackbutang ok, yeah that was confusing me since he doesn't make cams

[@davidreed6070]

That ex lobe doesnt even make sense.can you even grind that lobe to work properly without spreading the lsa way up.

[@PowellCams]

@@davidreed6070 lsa is a moot point , we are purely looking at tje lobe design

[@davidreed6070]

@PowellCams exactly if you regrind it will it have more OVERLAP?