Steve Tech ---Part 4 Camshafts

Here is Part 4 of camshafts
It was pointed out that I started to babble a little bit, sorry if that is the case.
remember some things I say someone else may have no clue or never heard.
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[@genemounceSr]

These 4 vids have made me rethink my entire set up lol. Appreciate it chief

[@GTRliffe]

Good videos. love his simple “next door neighbour persona” yet VERY educational

[@theshed8802]

Hi Steve. Feel free to babble all you want. It shows how much you think about the interrelationships between everything. One observation that I would like to make is that I don't look at the engine is an air pump. I always think of it as an air consumption device. Turbos and blowers are air pumps. Engines consume the result. A pump feeding a pump is a 2 stage pump. But in reality we have a pump feeding a consumption device. That's how I look at it anyway. Personally it helps me understand what I am trying to achieve and what I need to do to get there. Love your videos. Regards Greg

[@patriot2164]

Love this series ! You put them out and I'll keep watching Thanks Steve !

[@slowfox89]

I love learning more about camshaft voodoo. I like knowing the different designs with the pros and cons of them. You do a fantastic job of conveying the message you intend to.

[@bigblockjess617]

Thank you again. Especially for doing these series. I learn more every video. I will be definitely calling you very soon about some stuff. Haven't decided if im doing a HEMI or LS yet for my build.

[@ronhodgkinson7683]

More, more, more it never gets old. As a much older fart than you I enjoy listening to them. Now ledge is never boring

[@CaptKirk-rb7vh]

Such great info!! I really appreciate how you take the time & break stuff down in laymen’s terms so is with little to no experience can understand & learn!! Thanks Steve!

[@adamscoggins5840]

I absolutely love these Steve tech videos you’re doing a great job explaining!!

[@davoupnya3202]

Steve, I can't thank you enough for all the info you share with us ! Your the man !

[@martyfarrell9459]

Huge fan of Steve tech! Keep 'em coming!

[@vehdynam]

Great , valuable technical information , spelled out is a way that makes sense. Thank you very much.

[@alialdoseri7363]

Such great information as always. Thank you for sharing.

[@michaelloth5870]

Steve, I love your Dog. How about a part 5 and show us one of your cams on the Cam Doctor? Would like to see that "Asymmetrical" closing event. Thank you.

[@tjeffjenkins6226]

NICE, thanks again for the great overview!

[@groomlake51]

Your content rules!!! Thank you for all the great info!

[@brianrand29]

Great information and thanks for sharing your knowledge.

[@jorgecamacho2587]

Awesome ,thank you for the great learning sessions ,be Blessed .

[@flipfloptanlines926]

Enjoying your videos and way up north accent. I just seen a vid on 1st fire up of a Sprint car engine, menthanol SBC, with downnozzles in the exhaust side of the head. Looked real cool. Ive got no experience. I guess its like the new DI stuff but like what times the injection and how does the hose keep from blowin off during compression. I know i could search it but its better in my experience to stick to 1 persons knowledge when it comes to engines so it makes sense top to bottom

[@JohnRoberts71]

Great content thanks for sharing, very informative

[@airtightindustries]

Thanks for posting the videos, it's a master class for us!

[@paulmartin8212]

great videos. I think what you are trying to say is how long is it open or open longer vs how far open. Naturally applies to boosted engines.

[@g_force3857]

Ending should have been.. I’m Steve Morris and I’ve got to go feed my Doggo.. Very good helpful information sharing in a language that a normal guy can understand… thank you

[@danielsmith-ze3wy]

Can't wait to watch after work

[@H1GHdrogen]

Steve, can you discuss naturally aspirated camshaft design and theory as well? It would put in perspective how NA and forced induction cams function different mechanically to make power. Love stevetech, thanks

[@dondotterer24]

I wandered about this on forced induction system and now you confirmed it. Do you make more low end torque also? Thanks for all your great videos.

[@Hjfvvdst]

Thanks a million.

[@andrewcammer2535]

Steve - enjoy your videos, and the cam stuff is great. Who could views find that deep-dives into the NA stuff? Somebody out there must have some info on explaining the voodoo of overlap, scavenging, etc that the NA lives on.

[@jamesklink4698]

Thx… Got me thinking!

[@jcnpresser]

I see what your saying, I’m picking up what your laying down, I’m smelling what your stepping in!

[@raysmith7553]

Hey Steve awesome tech videos. Would you be able to maybe do a video on how camshaft duration can effect getting a engine up on a transbrake. I have a 6 cylinder which is 202ci and trying to get information for help is hard. Thanks.

[@chrisobrien9334]

You speak we listen. Keep it up m8.

[@martinhartwellii9226]

Hi Steve, do you ever use in cylinder pressure wave form analysis Just curious ? I love your Steve tech stuff... I'm a automotive tech for years and have been using ATS brand lab scope and in cylinder analysis for awhile. Going to be putting together a LS3 na for my Camaro eventually. Marty..

[@bcbloc02]

What if I am running 4 S 488 turbos on a 632? Would you then run a bigger cam?

[@danmyers9372]

Curious what difference there is between blower/turbo cam profiles and nitrous engine profiles?

[@kellyjones334]

Hello Steve. I have been watching your videos and you have given me some great information. I have a 427 SBC that is a pretty strong engine. It has a cam with a .400 lift on the intake and 251 @.050 duration. The exhaust is .387 and 255@.050. It has 33 degrees of total over at TDC. I am running 1.5 rockers on it. Do you think I would hurt or help it with 1.6 rockers. It has 220 AFF Heads on it and all good stuff in the engine. It is a na engine. Thanks for your time.

[@Hjfvvdst]

So you build the cam to the induced air pressure and volume weather it be turbo or supercharged?

[@Hjfvvdst]

Lifting and setting the valve at a controlled speed without loft or bounce?

[@ericbeckersr4431]

I'm Interesting in the chev 2.0 turbo do you do any with 4 Cylinders

[@bdugle1]

Great series! I’m a bit concerned about those square corners on your acceleration graphs. As acceleration is rate of change of lift (as the camshaft rotates), jerk is the rate of change of acceleration. Square corners indicate infinite jerk, massive changes in acceleration, which are not good in a dynamic system. Your lash in the solid roller world should be taken up “gently” by a ramp in the lobe profile-unlike a hydraulic roller, which is supposed to always be in contact with the lobe. These are pretty minute changes in the lobe, but really matter if you’re spinning a heavy valve train at 8000 rpm. I’m obviously preaching to the choir here, but it seems to me that glossing over jerk is limiting the discussion. In spite of that comment, this is a great series! Thanks Steve!

[@oneiam1533]

I want to be a Steve Tech member

[@notsofresh8563]

As I understand it, there is less detrimental effect opening the valve fast than there is closing it fast. Opening it fast fills the cylinder sooner, closing fast causes valve bounce, and this is why assymetrical cams are better. Is this true?

[@Deuce1550]

Yeah mate, that is exactly what I picked up from the earlier video. Asymmetrical valve so the closing ramp can be softened off and in turn reduce the risk of valve bouncing on the seat.

[@pistoninthewind]

A symmetrical is the same on both sides of the nose.

[@groomlake51]

N/A 🤣 Pro Stock guys and their 500,000$ a year budget on throwing new Ti valve springs at it every run🥸🔫 🤞 what about boost effecting intake seat pressure helping the valve open and turbo drive pressure slowing the piston down when turning the corner @ TDC on the EX stroke. My father started me early around 11-12 doing bottom end on his TA/FC rolling new upper rod bearing in it every run trying to hit the bearing squish sweet spot around .003-.006 with a hi helix roots, Wipple , or PSI screw. The first time I worked on a Hemi with hair dryers I couldn’t believe how much having drive pressure helped the bottom end. The same motor with turbo will go 20-30 runs with even having to pull the pan !

[@gpman83]

nitrous, treat as N/A cam?

[@donbrutcher4501]

Do cylinder head port configurations change significantly between NA and boosted engines?

[@flipfloptanlines926]

I think so. I watch Matt at MBE for bad ass cylinder heads and hes got a 10 degree for NA, and 13degree for boosted. kzbin.info/www/bejne/mImsZICXi9-ea80

[@Bradley_Clark]

Same principles apply for roots blown engines? Boost is boost I suppose... thumbed

[@boostedlsnotch2192]

Does anyone on here, have one of Steve's stage 3 turbo cams for an ls?

[@imtheonevanhalen1557]

Not to mention the parasitic loss of driving the lifter at high angles ......all of the fight over the past 50 years in cylinder head/ intake design was for the ENGINE to PULL the air charge IN......boosting air charge means all of the cylinder fill you're ever going to need rests just outside of the intake valve opening. I read years ago that the supercharger on a Top Fuel engine required 500 hp to drive it....anything connected to the crankshaft before the driveshaft is horsepower wasted.. Turbo boost captures energy from the exhaust/heat velocity. Finding the maximum efficiency of that process had to have required TONS of R&D and thousands of hours on the dyno.