Thanks for some real information. The internet is full of people that speak like they know everything. Even know they probably never even set up a set of heads they speak what they been told or heard like it’s facts. Really appreciate the time you give to actually give your honest opinions and real life experience. The world needs more people like you. Thanks again can’t wait for more!
@PowellCams
27 күн бұрын
And that's exactly why the internet can be a scary place
@georgearcher1921
27 күн бұрын
When I was setting spring height back in the day, I used a telescoping gauge and an OD mic. Things have come a long way in the past 40 years. Love your channel!
@PowellCams
27 күн бұрын
Ty, we appreciate that 🙏
@siliconvalleyengineer5875
20 күн бұрын
a real good informative tutorial on valve springs. I was shocked to see the valve springs quiver in the video clip. for sure determining the right beehive set for the cam is the smart thing to do and the added cost is minimal. thank you for posting.
@PowellCams
20 күн бұрын
@siliconvalleyengineer5875 glad you enjoyed!
@chriswise1232
27 күн бұрын
100% accurate. My .600 lift cam kit came with dual springs. It specced 160# seat, but I thought the dual springs were a bit excessive, but it came in cheaper than a nice pac spring plus the bare cam. Mine took .080 shims on average to get to 1.800", but I do have slightly longer valves. On a higher budget project, I'd definitely go Pac or PSI.
@PowellCams
27 күн бұрын
@@chriswise1232 yep, I hear it 10 times a day
@MichaelScudder72
27 күн бұрын
😂 LS Boutique Shops .. that's gold!
@PowellCams
27 күн бұрын
Lol, what else do we call them? Haha
@MichaelScudder72
27 күн бұрын
@@PowellCams I've often wondered why they sell you or let you pick your pushrod length when that's one of the last things you know putting an engine together. Probably is the last thing
@PowellCams
27 күн бұрын
@@MichaelScudder72 yep, it's crazy
@blueridgemountainprepper2166
26 күн бұрын
Thanks for the video series, I'm pretty knowledgeable about cams engines etc but I still normally take something away from each video
@PowellCams
26 күн бұрын
@blueridgemountainprepper2166 glad it's helpful .
@wmgreenleaf5671
28 күн бұрын
Great series - really clarifies valve train set-up & cams. Thank you.
@PowellCams
28 күн бұрын
Glad you like them!
@mhardy216
27 күн бұрын
Exact situation happened to me on my first "performance" engine. Reached out to the most reputable shop in the forums. Sold me a double spring kit and 7.40 pushrods for a mild torque cam. Noisy valvetrain on new engine. Put high dollar linkbar lifters in, same noise. Switched to PAC 1219 and noise gone.
@PowellCams
27 күн бұрын
Exactly 💯
@timothybayliss6680
27 күн бұрын
My favorite valvespring story is Uncle Tony collapsing a set of brand new comp retrofit rollers for a mopar LA. He was running this thousand dollar cam kit with a set of 340 six pack springs. He also claims he doesnt prefill his lifters. I figure what happened is the coils cleared coil bind, just, when the lifters were empty but as soon as they had any pressure the springs went solid and wiped out the lifters and cam. Knowing that guy it was probably a set of valvesprings that had sat in a box on his shelf for a decade after they came out of a different engine. Seriously, it didnt survive the break in. Everything was toasted. For a $100 set of springs.
@PowellCams
27 күн бұрын
There all kinds of nonsense on the interweb...
@strokermaverick
28 күн бұрын
Enjoying, this channel!
@PowellCams
28 күн бұрын
Glad you enjoy it!
@brianalbrecht4423
24 күн бұрын
Daniel...that was the best slo mo footage of valve spring dance...i have ever seen...!..what i cant beleve was how MUCH the valve was move'n side to side...in the guide & on the seat...!...that is defenatly N.G....!...GREAT video...."people that dont know the differance between a ball pean hammer & tennis shoe laces"...omg...lmao...lmao...great job explan'n install hight & how 2 figure what u need to do as far as shims..or dont need 2 do....well done..!..thanks...
@PowellCams
23 күн бұрын
Glad you enjoyed it!, more coming
@MichaelScudder72
27 күн бұрын
I love this series of videos. When I first bought my GTO 6.0 in 2006 there was so much bullshit out there about springs, valve train set up... "Oh you'll be good to go with the .660" spring."
@PowellCams
27 күн бұрын
That's always the answer, every time..
@ericstalker7973
27 күн бұрын
Hello Daniel, I finally got a little time to watch your valve spring stuff episode. All I got to say is WOW. I understand the installed spring height and how it can affect the geometry of the valve train especially with non adjustable applications and such but you explained so so much more of what is going on with all that. I'm always learning something new or understanding things better with every one of your videos. Hell let's call it what it is, these are not videos these are priceless tech classes. Keep them coming Daniel, you're teaching so many people and I sure hope they all appreciate it as much as I do. ❤
@PowellCams
27 күн бұрын
We really appreciate that 🙏, we are trying to share the stuff we have learned over the last 30 years, hopefully it's helping
@thenofilterchannel8247
27 күн бұрын
And I show them that spring mic and explain that and they still look at me like I'm crazy. 😂
@PowellCams
27 күн бұрын
No doubt
@JeremyFrazelle-or1mt
28 күн бұрын
Learn something new every day.
@PowellCams
28 күн бұрын
Glad it's helping
@andrewcammer2535
22 күн бұрын
Enjoyed the video - lots of good information in here. I couldn't agree more than so many of these LS/LT deals are being put together without any measuring what so ever - and that's a major oversite in your more max effort cases. I'm right there with you on valve-train mass , keeping the rocker and intake valve in particular nice and light is critical to achieving valve-train stability without monster spring pressure. I work for one of those "Boutique LS shops" you referred to, but I can tell you the only springs we sell are made here in the USA by BTR, PAC, and PSI. Not everybody out here is trying to run Chinesium junk while picking their customer's pockets clean. Our off the shelf street/strip cams are in that .640-.650 lift range and setup very well on a BTR 660 that comes in around 1.780 installed, and ends up about .060" from bind. Gives about 155lbs on the seat and ~400lbs open, which is what we find is necessary to keep things stable out to 7000-7200 where most of our street/strip stuff with stock heads/rockers is going to get turned. We could make a PAC 1276x beehive work in that application, but it's a tough sell for essentially the same spring performance at double the money. You mentioned a beehive on a .600" lift deal being good with like 130/315 out to 6500rpm - and while I agree that ought to be great, that's a pretty mild cam if it's only gotta see that much RPM to give all it has to offer. We like to lean into the more max-effort side of hydraulic roller naturally aspirated LS/LT stuff and often put together combinations that swing upwards of 7500-8000rpm. The PAC 1209x and PSI 1513ML are our go-to springs for those sort of deals, and are about 160/475 without shims, and depending on the combo we may shim another .050"+ into them. A good, preferably short travel hydraulic roller lifter will stand up to that just fine. You might like our "9k" project that we did a few months back on the Spintron: kzitem.info/news/bejne/sYppt4qjjYqldmk&
@PowellCams
22 күн бұрын
The btr springs cb is at 1.025, so 1.78-.650=1.130, so that's. 105 from cb not .06, also btr spring's are made offshore, also I fully agree a Pac 1218 isn't a 9k rpm spring, in my example it will work perfectly in 90% of the street applications we grind cams for, it's a small percentage of people trying to turn 8k and actually make power with there cam and header weekend cruiser, but like u said, gotta keep the valvetrain weight down, more seat pressure just equals more opening side deflection and lofting, but I agree we have sum rode race engines with pac beehives making power at 7500, so it works no doubt.
@andrewcammer2535
22 күн бұрын
@@PowellCams I have bind on BTR 660s at 1.070, but certainly they won't all test the same. Didn't know they come from offshore, that's disappointing. Totally agree that you're make some noise and go get ice cream setups don't need any of the exotic stuff. Probably a lot of stuff running around is poorly setup, over-sprung, etc. All about the right combo for the application. Keep the vids coming, this is the kinda depth of content is rarely discussed!
@PowellCams
22 күн бұрын
@andrewcammer2535 absolutely, nobody is sharing this information, it's the same feedback I get on our "Powell machine Inc" channel, we show people why,where and how on machining engines ect, and my channel is relatively new, and it's done surprisingly well, for a backwoods redneck! Lol, ty for watching, more to come, (we are going to build a spintron from scratch later this year, we ate going to document the build.)
@user-rf8ly2oc5l
2 күн бұрын
Damn...this is great info!!
@PowellCams
Күн бұрын
Glad you think so!
@charlesstoneking1574
27 күн бұрын
Never gave harmonics in the spring a thought. Thanks.
@PowellCams
27 күн бұрын
Happy to help!
@MorganGoettsch
28 күн бұрын
Great series Daniel! Keep em coming sir!
@PowellCams
28 күн бұрын
Thanks, will do!
@kurtisskoog5874
28 күн бұрын
Learn something new every day! I allay thought the purpose of a beehive spring was to provide extra clearance for higher than stock ratio aftermarket rocker arms
@PowellCams
28 күн бұрын
Ty, glad it's helping
@curtiswalter86
28 күн бұрын
My first high perf car I would break rocker arms and bed pushrods quite often. And then the roller cam and the roller rockers came about. Many years ago I'm old man .
@PowellCams
28 күн бұрын
I have seen it!
@MichaelScudder72
27 күн бұрын
My personal preference, if possible I'll take beehives or conicals all day over a dual.
@timothybayliss6680
27 күн бұрын
Beehive springs have a smaller and lighter retainer as well. They really work great.
@PowellCams
27 күн бұрын
Always
@MichaelScudder72
27 күн бұрын
@@PowellCams They must be good. My 2003 5.7 ram went 356k miles on the factory beehive springs before one decided to break. The replacements, still a Mopar beehive but with a damper on the lower part.
@CLW83
25 күн бұрын
Thanks for the information!
@PowellCams
25 күн бұрын
You bet!
@litonyayo1666
28 күн бұрын
oh oh...first comment!lol.love the channel.learning so much.thank you.
@PowellCams
28 күн бұрын
Awesome! Thank you!, u are the 🏆 winner
@RussellCompton-fh3gr
16 күн бұрын
great stuff again
@PowellCams
16 күн бұрын
@@RussellCompton-fh3gr glad u enjoyed
@nickshevchenko-zx2ku
28 күн бұрын
go information. you need to also check your actual rocker arm ratio. i have found that many oem and after market rocker arms ratios do not match specified or advertised ratios this will affect your spring and cam set up.
@PowellCams
28 күн бұрын
Great point
@keith6872
27 күн бұрын
I remember back in the mid years 2000 people were breaking Comp behive 918 springs and Manley single coil springs. So dual springs were sold to help guard against dropped valve.
@PowellCams
27 күн бұрын
A Pac or Psi would have solved that issue
@v8packard
26 күн бұрын
That happened when Comp stopped buying springs from PAC, and started sourcing springs from a company outside of the United States. Comp kept the same part numbers. The fix was going back to a good spring like a PAC. But Comp never did.
@7000U9ZHIFT
25 күн бұрын
@@v8packard comp junk
@ericwright5419
28 күн бұрын
Very good video getting ready to setup valve springs nice to see a video like this to refresh my brain lol
@PowellCams
28 күн бұрын
Glad I could help
@ericwright5419
28 күн бұрын
@@PowellCams Are they any way to tell the brand of a valve spring
@PowellCams
28 күн бұрын
@@ericwright5419 I can tell sometimes just because I have seen so many
@ericwright5419
28 күн бұрын
@@PowellCams got a used set of heads springs looks new guy couldn't remember what brand they used didn't know if different companies made them different probley would be best to replace them Thanks
@ThomasELeClair
28 күн бұрын
@@ericwright5419 ,,,,,,,,,,,,,,,,,,,,,,check the spring pressure at the installed height you may need to run,,,,,,,,,,,measure the height of the spring , and diameter,,,,,,confirm with a cam grinder if your springs will work with a given cam,,,,,,,,
@ericstalker7973
27 күн бұрын
Oh yeah and one more thing, I also have the same blue valve spring pressure tester device. I used to use it a lot back years ago😂😂 the one I have is much much more dustier than yours
@PowellCams
27 күн бұрын
I bought mine new about 20 year's ago
@DavidSmith-eu4lq
17 күн бұрын
Great videos, really good information!
@PowellCams
17 күн бұрын
Glad you like them!
@skeetamacgyver1821
25 күн бұрын
Exactly why 4 valve overhead cams are so superior to 2 valve pushrod valve-trains.
@PowellCams
25 күн бұрын
I agree, but... pushrod engines are cooler
@iainkinsella4708
24 күн бұрын
Springs are complicated and oversimplified by marketing and capitalism. In the gun industry I saw this often. Great video
@PowellCams
24 күн бұрын
Yes, I agree!
@larryeller6041
27 күн бұрын
Thank you for info on the micrometer very helpful
@PowellCams
27 күн бұрын
No problem!
@approachingtarget.4503
27 күн бұрын
Your welcome
@PowellCams
27 күн бұрын
U2
@ThomasELeClair
28 күн бұрын
,,,,,,,,,,,,,Thanks big time.....I have been settin spring heights and cutting valve seats for harley twins for decades......I always tought the more clearance to coil bind would be safer.........Spintron info was not around in the 1980',,,,,,,,,,,,we did with springs as to what the cam grinder recommended,,,,,,,,I'm lucky I never got in trouble with jobs,,,,,,,,,,,,,,,,,,,,,,Today ,,, the beehive and ovate conical springs ; make dual and triple springs obsolete.......but , ya use what ya can afford........Harmonics and resonance , are terms of deep science that engine builders were in the dark about,,,,,,,,,,,,,,,,,,the web has spread eons of education , from the manufacturers ,and sema shows, ,,,,engine expo,, podcasts,,,,,,,,,hell I love engineering ...
@PowellCams
27 күн бұрын
Very welcome, glad it's helpful 🙂
@xxkingslayemxxgamer5553
28 күн бұрын
Damn good job explaining valve tran
@PowellCams
28 күн бұрын
Tyvm
@Anthony-nw5zv
28 күн бұрын
I had no idea how springs bounced around like that video clip showed 😮
@PowellCams
28 күн бұрын
That was a out of control scenario, but they do move around
@bd5058
27 күн бұрын
How is spring rate of the springs determined by the camshaft design ? (Formulas)
@PowellCams
27 күн бұрын
There is wasayyyyy more than spring rate involved
@bobqzzi
28 күн бұрын
Another great video
@PowellCams
28 күн бұрын
Glad you enjoyed it
@justinkorpela7955
25 күн бұрын
Great video
@PowellCams
25 күн бұрын
Glad you enjoyed it
@justinkorpela7955
25 күн бұрын
@PowellCams for sure I enjoy all your videos learn a lot from them
@jeffallen3382
27 күн бұрын
Class is in session!
@PowellCams
27 күн бұрын
Ty!
@jeffallen3382
27 күн бұрын
@@PowellCams you're welcome!
@bruce1816
27 күн бұрын
Thanks Dan !!
@PowellCams
27 күн бұрын
@@bruce1816 u bet!
@paulshurmon138
28 күн бұрын
Thanks for the video.
@PowellCams
28 күн бұрын
You're welcome!
@joelubner3879
28 күн бұрын
Great Videos Thanks
@PowellCams
28 күн бұрын
Glad you like them!
@GeorgeFarahGNR
27 күн бұрын
My truck is a perfect example of why we shouldn’t use those dual springs. The valve train was always Noisy with them!
@PowellCams
27 күн бұрын
Definitely
@patrickwendling6759
27 күн бұрын
Thank you for your knowledge and videos USA 🇺🇸 TRUMP
@PowellCams
27 күн бұрын
You're welcome
@FinnellRacing
28 күн бұрын
Yeah. I had Livernoise set up my 32v 04 Cobra heads for my cams. What a disappointment. .550 lift cams, and I found that their springs had complete coil bind and became a solid piece of #$#@ at .540..... Yeah, it messed some stuff up.
@PowellCams
27 күн бұрын
That was a expensive lesson... did they make it right?
@GeorgeFarahGNR
27 күн бұрын
I wouldn’t let Livernois touch my lawnmower. Talk to Alex at BCP in Livonia and have Lideo in Sterling Heights/Rochester hills tune it.
@FinnellRacing
27 күн бұрын
@PowellCams No, they did not make it right. I had to weld some of the cam towers and order the tooling pieces to cut and install Dura-Bond cam bearing inserts. I Also had to order a replacement left bank intake cam from Lunati. Lunati did not have the springs needed but did have the specs, so I found the exact spec springs at Pac racing and got springs and retainers from them. Also, I had them put new brass valve guides in with my new Ferria valves, and yes, too much valve guide clearance, I can't fix that myself, so letting it eat, so far so good. The heads are on a 5.4 liter built short block, she turns 9000rpm.
@FinnellRacing
27 күн бұрын
@GeorgeFarahGNR It is on a Holley Dominator ECU and tune it myself. Yeah, had I known Livernoise was like this, I would have used someone else. Maybe next Modular Head Shop in Florida. Not many shops doing the older heads, they all want to specialize in Coyote stuff.
@johngatsby1473
25 күн бұрын
So years ago i had my ls403 stroker with ported heads give up a valve head and mess up my cylinder. Was pushing 18lbs boost texas speed cam 236/ 242 601/610 114 lsa with the dual springs. Could this have been caused by the springs or maybe the guide? Ive always wondered.
@PowellCams
25 күн бұрын
It broke the head from the stem?
@johngatsby1473
25 күн бұрын
@@PowellCams yes. The big piece popped off and banged up my cylinder and forged pistons.
@PowellCams
25 күн бұрын
@johngatsby1473 that most likely a bad valve, it's rare to see that happen., what was the ptv clearance?
@johngatsby1473
25 күн бұрын
@@PowellCams I honestly don't remember all the specs but I did use top notch everything because it was for a 1000 + build. I can't even remember what valves, Manley I believe. Wrecked my life...10k into building and it ran maybe 100 miles. Pretty disappointed. Still have everything in the garage and thinking about doing it again but... Do you think I should get rid of all those valves in case it was a bad run?
@terrysmith8133
13 күн бұрын
an engine building channel said that there are some radical cams that have a .002 dip just before the opening ramp. he didn't say why, said call crower. i called and they said dave and bruce used it but they didn't know why. my guess is it makes the opening more radical but was wondering if you might know since you are a cam grinder?
@PowellCams
13 күн бұрын
@terrysmith8133 why would u want a pothole before the opening ramp?? Most likely what there seeing is wear in the master plate causing this issue.
@thenofilterchannel8247
27 күн бұрын
Maximum Effort
@PowellCams
27 күн бұрын
Definitely
@billytarpon9871
27 күн бұрын
so what do think about conical springs ?
@PowellCams
27 күн бұрын
They break alot, they have some inherent problems
@billytarpon9871
27 күн бұрын
@@PowellCams well 1218 it is
@sarahstephens5966
23 күн бұрын
Now that we have beehives, why are the traditional springs still being made? Insane!
@PowellCams
23 күн бұрын
cost and application
@jimmyford796
25 күн бұрын
So my guess is if I’m replacing my factory springs that have an installed height of 1.8 with new springs that have an installed height of 1.8 can I just swap them out and be good?
@PowellCams
25 күн бұрын
Sure
@TheJohndeere466
28 күн бұрын
Ive made new billet cores for tractor cams. Tractors usually run flat tappets but the blanks I made were for rollers. Ive noticed that the lobes are usually shifted off front to back probably to help with making the flat lifter spin. Ive noticed if you put the lobes in the original location when making a roller, the roller will not ride in the center of the lobe. I was wondering when you grind a flat tappet cam do you have to pay attention to which way the lobe taper is. Are they always larger towards the front or the back or is it engine specific.
@PowellCams
28 күн бұрын
Some go all same, some half one way half the other, also ft lobes are offset some amount, chevys are .030, so you need to know lifter bore locations to do a roller.
@TheJohndeere466
28 күн бұрын
@@PowellCams so when you grind a flat tappet camshaft do you have to watch which way you taper the lobe
@PowellCams
28 күн бұрын
@@TheJohndeere466 correct
@watsisbuttndo829
27 күн бұрын
Had a summit house brand pontiac cam recently with the taper ground on the wrong way. Lifters wouldnt spin. Luckily caught it on the run stand. Swapped ot out for a eglin brand cam that had the taper on the right way but taper was only a couple of thou and still not all lifters spun. Got the core reground by a local cam guy and problem solved.
@camshaftcasting1451
14 күн бұрын
I'd like someone to do something on profile design. (Acceleration curve, deceleration curve, velocity/eccentricity, float cover, surge & vibration avoidance, etc.) Anyone seen this on KZitem?
@PowellCams
14 күн бұрын
@camshaftcasting1451 no, and almost no lobe designer is going to freely talk about that stuff
@ourback
28 күн бұрын
So if going with a ~.550 lift cam in an LS, where is the dividing line between going with ls3 or even ls6 springs vs 1218s with shims?
@PowellCams
28 күн бұрын
A ls6 would be more than adequate
@chriswise1232
27 күн бұрын
@ourback There's quite a few springs in between and a couple of commonly used ones.
@sjcottsi
28 күн бұрын
Steve Morris broke a valve spring out on the road traveling from race to race. Maybe you saw the video. That is harder on springs than the trailer queens that only drag race. If you’re going at a constant speed that coincides with the destructive harmony of the spring. I’ve always felt that is the secret to free energy I.e. dynamic harmony. The Tacoma Narrows Bridge demonstrates this. Blow gently across the edge of a taut ribbon. The energy exhibited seems more than the energy induced. You are promoting beehives but have you ever dealt with conicals? They seem to have an advantage in coil bind. kzitem.info/news/bejne/uZ2d3pmrf3aSd4osi=jR4FyqbBPHUqZPG8
@PowellCams
28 күн бұрын
Conical's have trouble living a long time, the shape has issues.
@sjcottsi
27 күн бұрын
@@PowellCams Thank you. I hadn’t heard anything after they were first introduced.
@shane-222
20 күн бұрын
⚒️🪢😂😂😂😂
@PowellCams
20 күн бұрын
👍
@chevytough8629
27 күн бұрын
I have noticed that I keep getting unsubscribed to your channel... Only the cam channel, not the machine channel...
@PowellCams
27 күн бұрын
odd i had someone else say that, idk how that can even happen
@chevytough8629
27 күн бұрын
@@PowellCams Me neither... It happens with some of the gun channels that I follow, but typically not with the automotive channels... Maybe camshafts are as controversial as firearms and we just didn't realize it... Lol... Great video by the way... Hopefully it is eye opening for a lot of people...
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