Camshaft Run Order, Camshaft Guess Contest, And More Problems

[@lykinsmotorsports]

I’m Brent. 😁 Wow, I'm 19 out of 23. That thing is gonna be smokin and knockin by the time my cam gets stuck in there....LOL

[@robertwest3093]

I’m subscribed to your channel. You know how to make good power, especially with an FE.👍🏻👍🏻

[@roughwater3454]

Making my head spin with the effort this is taking. Good on you man....

[@GrandPitoVic]

I like how you did the cam number drawing with your daughter pulling them. That was cool. Everyone is excited and anxious!! Lol.

[@powellmachineinc]

On ptv clearance, early Int op and late exh close is the problem, whatever cam you checked ptv originally just look at the #'s as long as the int opens the same or later and the the exh is the same or earlier there won't be any issues.

[@robertfontaine3650]

The only thing stopping me from building my engine is not having any money ;)

[@briankilpatrick6039]

The only thing stopping me from having money is my engine

[@slopoke22]

Fa sho!

[@warrenpemberton-ww9fq]

Join the crowd hahaha

[@4speed3pedals]

E ric, thank you for posting this. I have had the feeling for a few years now that Comp is big headed but it is a personal opinion with nothing to actually report. My theory was the expansion, the combining and the people in charge losing focus - people in charge = bean counters. I purchased a set of keepers for my project during the covid debacle. I will check them to be sure they are equal. WOW. Lifter crown, cam taper, metal hardness, oils, now another thing to check, something NO one would think of checking. Thank you!!!!!!!!!!!!!!

[@383mazda]

I haven't watched all the cam challenge videos yet - are you going to interview the winner(s) to ask about their design process / how theu chose their cam specs?

[@blueridgemountainprepper2166]

You left out my favorite line, I don't port cast iron heads 😂😂😂😂😂

[@bigbad253]

I've heard it enough times that my brain added it automatically and I had to go back and check!

[@blueridgemountainprepper2166]

😂😂😂😂😂😂​@@bigbad253

[@straubtechnologies]

Our valve lock orders are through the roof at Straub Tech Inc. Still made in the USA!!!!!

[@walterchyrywaty6726]

Straub locks in two of my roundy round motors that have lasted laps and laps and laps without so much as cracking a valve cover. Always good to see how the locks seat in the retainers, and the Straubs always nice and uniform. Great stuff!

[@donaldhalls2189]

It's sad how much people don't have any sense of responsibility, for their job,no quality control only quantity, thanks for sharing, all the best to you and your loved ones

[@JG-kv4oi]

Speaking of biz being slow, I've been in the custom exhaust business for 37 years and starting Augest this year has been the slowest by far since before co^id. Don't know ifperhaps people are holding back to see what the election brings but I have the feeling people are just tapped out in the dollar department with higher insurance, property tax, groceries etc.

[@rksg2003]

Your right about the hit hard etc.

[@leosun8469]

I donated, Eric- this is really cool and I can’t wait to see the cam cards and results. Thanks for doing this!👍🏻

[@hankclingingsmith8707]

Very interesting. You are providing a valuable service for everyone doing the cam challenge. People will be talking chit for months afterwards.. to bad you could not provide 2nd money 3 rd. Thatsa nice pot

[@riccocool]

Lots of car guys are good but everyone of them thinks they know how to improve the rulebook. And it always correlates to their bank balance.

[@DAVIDLEE-r6z]

Use Pac bead locs +retainers the next time you order valves. I use del west titanium valves bead loc cut. It's the best and expensive but it's worth it!

[@bcbloc02]

I use a lot of Manley locks I find they fit better than Comp. Best part about Manley is I can order any number I want not just sets of 16.

[@DSRE535]

The last set I bought fit extremely tight in the retainers they were supposedly made for I mean you couldn’t even force the locks into the retainers and so I tried different retainers same issue ended up getting different locks

[@Johnson-uy9xq]

Good times! looking forward to the updates!

[@billpackard5141]

It looks like the valve stem grooves on the keepers are in the same spot relative to the bottom of the keepers but the lash cap recesses are different depths. If he runs lash caps, they would have been contacting the keepers rather than the tip of the valve causing his problem.

[@robertbcope]

Ugh. I build a nice 1UZ during this time, was talked in to Eagle rods. Well, the rods came apart on us. Talking to other builders, it sounds like Eagle had a bad run of rods during the Covid years as others have seen the similar. Really mad at myself for moving to a cheap rod. Live and learn.

[@OEMishGarage]

I have a set of Comp 648-16 locks that I bought brand new. They are supposed to be 7 degree and 11/32, but when I started mocking up with their 787 retainers, the locks didn't seat in the retainer because the taper was off. I tried fitting them in a 10 degree retainer, but they sunk too far down and protruded out the bottom. I don't have any 8 degree retainers to test, but it looks like either Comp sent me an entire bag of 8 degree locks in a 7 degree package or this entire batch is bad. This was also back in 2017. Since then, I have used Crower, Howards, and Isky locks.

[@peterchristlieb]

Years ago I noticed their retainers were on the soft side. After a while you’d see the locks pulling down further into some than others. It kept me up nights so I switched from affordable to outstanding. I’ve never had issues with Isky retainers or keepers.

[@tonyavila5556]

The 2 valve locks that failed, looked like they matched in lash cap recession, compared to the other locks you showed, that did not match. The top of the lock looked shiny, like the lash cap was hitting it, but I don't know if the customer used lash caps or the depth of the lash cap. I am guessing the depth difference caused the lash cap to hit the valve lock because it was not cut deep enough.

[@my87z28]

Man, got me a little scared now. All we have is dyno time on my engine at this point. But I went back and looked at my build sheet from you. My locks are Comp 611-16 😳

[@craigbowers4047]

Precision Products also makes super quality locks & retainers.

[@SalterRacingEngines]

How many are you going to do per day

[@ericsmcmahan]

Eric Weingartner, what kind of seat material are the sr20 heads using and will that hold up for street use?

[@straubtechnologies]

Election years are usually flat to down in this industry. That's what I have seen since 1994 and what others that I do business with that have been in the industry much longer. Covid brought in the PPP money and many performance engines were built while that cash was flowing. Many a project that had sat for many years got attention from the owner after mom and the kids got a pool. So I feel that late '20 to the end of '23 are anomalies that we really can't compare too. I think you have to go back and look at '18 and '19 for a fair comparison and what would be a normal year of business in this industry.

[@chevyrc3623]

Pretty cool man can't wait as always I will try to see if I can donate because I am very curious on cam specs but I always try to learn as much as possible. Before I try to go assume to somebody or my own stuff. Or whatever the deal would be. And dang now locks I will give you example of this I noticed you had mixed ones you explained but what I had happened before we had 1 missing from 1 package. And 1 extra from another package which was interesting but oh well. And hopefully I can try to send a head for refresh for next season soon. I got another set of protoplines I bought used being sent in because my sponcer took my other set which I was trying to get back from him because I told him I I had plans for those heads so I was going to have use another set for my sponcer to use like dart 215 from another guy it didn't happen. So hopefully the protoplines I get shipped to me are good I hope it's a same set just straight plug. And also order manifold threw you soon I hope so I am trying as fast as I can just I wish my sponcer and other would be more understanding on what I am doing but oh well

[@j.finesseflights1403]

Gr8 video! I noticed you don't taper the valve guide ends in the ports, may I ask why?

[@stephenzadow3322]

Do you think it would be this big ?

[@rionstretton8133]

Wow you are a great ❤

[@stephenzadow3322]

Do the bolt holes cause turbulance ????

[@scottruether2500]

I'm building engines in Texas and have also been slow for the last 6 mo. I've priced a few but zero takers.

[@arturozarate1752]

What part of Texas?

[@markl6769]

same here with the locs different manufacturer same time frame. on my heads, lucky? i cought during assembly.

[@TbirdBoss24]

is there a valve size restriction due to bore size? say in a small block with a 4" bore and 2.02 or 2.08 intake assuming piston valve reliefs allow it what about with larger valves what about heads that require 4.125" bore size or larger when planning out a build & ordering heads what else should one keep in mind

[@houstonpurser5403]

I own a engine machine shop and I’ve been noticing the comp 10 degree locks have been like this and it also seems like they are a softer metal and starting to fold the top edge that holds the valve that’s what I’ve been noticing lately

[@alonzahanks1182]

its the pertruding ring part that locks in groove of valve that holds it. only way other part locks is if spring breaks..

[@jalbarado1]

Had a a set of crower locks that were radial groved and were labeled chevrolet square grove... 😮

[@alonzahanks1182]

its hard just to buy spark plug wires MOROSO for wires i bought 5 different brands had to be low impedence high voltage lengths were cut for off set distributor sbc i have lt1 and high impedence on lt1 gives a top speed of 60 miles per hour chugging on 2 cylinders lol it realy sucks when a wires 1/2 inch short so you stretch it and pull over every 3 miles to plug back in

[@jonadkins9339]

Eric, just to help some people out. Apple just released ios 18 which includes RCS chats. Not gonna get into detail, but basically you can send Android users high resolution images and videos just like you can send an iPhone. So if you haven't updated, that could help get donations from people who are worried about that.

[@jaythorne5208]

Did u check the keeper groove depth of that valve?

[@wlrottge]

Might have been asked before, but I haven't seen/heard it answered. You're running the engine with the Texas Speed cam again at the end. What happens if you find a big change?

[@WeingartnerRacing]

I don’t know. It should be close.

[@wlrottge]

​@@WeingartnerRacing"should" lol Guess you'll have to run that Texas cam between every competitor cam (kidding!)

[@johncropek536]

😂 your parts are top quality it hard to see that not all suppliers have the same standards . l am the same way I will never use parts that don't hold up to there specification.

[@Adrian-hr3hf]

Did I jump to a different timeline around the 27 minute mark?

[@bigbad253]

We all did. Fortunately it did not last long, as alternate timelines scare the bejeezes out of me.

[@lancegibbs7506]

I've got a feeling that these bigger named LS camshaft companies won't place a single one in top 5. These guys that don't sit in a office all day. And actually are putting the work in and putting there hands on the engines they put together are gonna surprise a lot of people.

[@leperemotorsports859]

Eric how would you prefer one to contact you to talk about ordering a set of heads thanks

[@WeingartnerRacing]

Email

[@powellmachineinc]

A couple things on locks/retainers, comp or Pac isnt manufacturing locks, retainers, seats..., (I'm a pac distributor) there farming that out, the chances of them 100%QC'ing that stuff is 0, also 10 actually don't "swedge like a 7, the best lock/ retainer is a super 7 , but you just can't get them any hardly.

[@alfee9411]

Recently I reluctantly installed a Comp set of rocker locks (with steel roller rockers and 6 had burrs, shavings inside of the barrel and male threads, yes they were cleaned 2x and blown out before assembly. Sad days compared to decades before.

[@paulshurmon138]

Thanks for the video.

[@drcolster]

Hey Eric, do you Sleeve the Exhaust Port head bolt hole in the SR20's.... From what i know the Exhaust really chews out the head bolts, or studs....

[@WeingartnerRacing]

No it has yet to mess up a stud I have seen

[@drcolster]

@@WeingartnerRacing Might be our 98 Unleaded Fuel here in Australia...Reher Morrison did a set for us, same Ex hole in bolt areas.. but even very thin elsewhere, they leaked.. they had to do another set...600 ci BBC.. made 1105 hp.. about 8 years ago... From memory Inlets were around 540cfm...Street/Strip engine..

[@drcolster]

How much of the floor was taken out for the port with the wing ???, or should they give you more meat / height on floors to add wing in ???

[@WeingartnerRacing]

The Cnc casting is very small that’s why I could add it. You can see on the brx that is impossible

[@jmflournoy386]

Still chatter over on speedtalk about pushrods and various base circles of cores - might need a clairification for those lurking there is a discussion in one of the three threads there about the various cores available and what the limitations are for the various cores explains what the grinders have to work with, the compromises unluss you go for a custom or billet core which IMHO are way out of the scope of this "competoition" Thanks for the reminder on the keepers I've had mismatched before but not packages with different groove height Usually have to pay extra for the non standard heights, here you really had to pay extra

[@jefferymoreau5533]

Is there still time to donate the 20 to be able to get the cam cards the day of test?

[@briankilpatrick6039]

Interesting what you said about moving to PAC locs, i moved over to them about 2 years ago after the retainer "wiggle" issues you described. Next brand didn't fit the stem ( bead loc would bottom out on the stem). Pac is definitely a quality part

[@DAVIDLEE-r6z]

A bead loc, is the design of the loc and requires bead loc drooved

[@DAVIDLEE-r6z]

Grooved valve stems. Sorry for the inconvenience in spelling. I dropped the phone. Also pac springs should be matched with pac retainers.

[@briankilpatrick6039]

@@DAVIDLEE-r6z yes...and yes

[@inscoredbz]

So how are pre COVID 10° locks? Good or junk?

[@stevenkirk2563]

I refuse to use anything comp. Quality is down.

[@cjones22p]

Who does small block mopar heads????????

[@Twogreenfeet]

www.youtube.com/@servediocylinderheads

[@anridemirdjian5011]

Hi Eric. Are those locks DLC coated ? Are the locks made out of Titanium ?

[@Jeffsa12]

Eric, would you consider sharing with your viewers, the range of intake duration @ .050? So the smallest to largest numbers only, or even saying something like they're all within the low 230's to the high 250's would be cool. Those 20 degree BBC heads are amazing. I knew they were good, but I had no idea they flowed that much. And in such a smaller, closer to factory size castings compared to any of the older "big chief" style spread port heads. Speaking of BBC heads, have you saw the new GM BBC 1000hp crate engine with the symmetrical port heads, on a std 4.84 bore spacing? I'm wondering if they're a bolt on or did they move the head bolts around. They're a very good "looking" head with some fairly modern looking tech compared to anything short of the DRCE type castings.

[@dondotterer24]

I think after the cam challenge you will have plenty of work coming in. Probably alot of LS.

[@jamesyoung2241]

Unbelievable the amount of crap like this going on. Can't trust any parts you buy , no matter the price.

[@damonsalo597]

There ARE such things as stupid questions, don’t ask those ❤

[@Chainsaw-ASMR]

Is it possible that during Covid manufacturers furloughed their plants and sold old parts had that failed QC? I remember that a lot of manufacturing plants were closed or had severely reduced capacity during 2020.

[@tylermcintyre5177]

The only problem i see with the guessing contest is perhaps a family member of a cam competitor guessing maybe dead on if one feels that confident. But what do i know.

[@tylermcintyre5177]

I just thought perhaps some would have a bigger advantage than some maybe.

[@toddsculley2710]

But it’s would still a guess. If your guessing good luck to you

[@I_like_turtles_67]

I hope this is popular enough to make more. Adding a 50/50 is going to be fun.

[@michaelrunyans8758]

Hey Eric are you going to do a book on this contest?

[@WeingartnerRacing]

Yes. It’s available for preorder now Ls dyno mule

[@salvatoregiovanni8967]

NK Performance? As in Dr. Tuneemall?

[@WeingartnerRacing]

No

[@ST433]

Comp in Europe is going way down in how popular they where, usually we say that Comp is the most expensive shit you can bye for money, and we are not even talking about their custom service...

[@mattbaird6994]

I'm assuming those locks were not Chrome Molly?

[@WeingartnerRacing]

Comp 611-16

[@keysautorepair6038]

My business is so slow right now it’s crazy.

[@GaryWhipple-q6w]

Too bad they are so expensive most of us guys are confined to the 24 deg head 😮

[@samstewart4807]

hi, I think you are not alone in your lack of business. I think people are simply running out of $$$. I think yoou will see this get worse- much worse before it gets better.

[@gernblanston4956]

Build Back Better in full swing!!

[@DAVIDLEE-r6z]

Thanks alot Joe!!!!😢 . TRUMP 2024!

[@cjones22p]

" if" it gets better...

[@alonzahanks1182]

Winning Cam Will be a 114 lsa 540 560 lift 50 112 at 230 238 with 240 259 duration timed 4 degrees early Im kidding you havent said it but this is world class racer engine builder Cam competition its going to separate the kiddys from Dirty White Boys real Quick

[@perrybruce2609]

Anonymous from NC

[@rocketsurgeon11]

It seems I don't know how valve locks and retainers work based upon your statements, so I'd like an education, please. Or, did you already go over that on another video and I need to watch that? I'm sure I'm not the only one. Thank you.

[@ToddWright2]

It's a fairly complex process making for a lengthy series of videos that only valve lock engineers would find interesting. For instance: DOHC motorcycle engines use quarter round locks and valves. When BMW WSBK engines failed due to dropping valves it wasn't a valve float or geometry issue. What was happening was that the already very low mass titanium valves would get the stems cut off at the lock/valve interface. The parts looked unused after short high rpm(15,500) running and so a bunch of calculations informed the engineers that the valve mass was too much allowing the round section of the lock to cut the round section of the valve. This prompted the engineers to go to a hollow stem ti valve and this solved that issue. The BMW WSBK engines still have an unacceptable failure rate, but it's no longer due to harmonic actions cutting off the tips of the valves. KZbin isn't the place to find out about such complex issues. Try the SAE library, or the work of the late Professor Gordon Blair. But even those sources won't give you a comprehensive overview of valve locks because it's complex. The British magazine Race Engine Engineering(I think that's the title) often delves into such esoteric subjects so that's where I would try first if you really want to know "why" something is done as it is, rather than a partial non-answer like "these are the locks you need" without qualifiers and quantifiers. Good luck.

[@rocketsurgeon11]

@@ToddWright2 Thank you for a detailed and obviously informed response. You have made it clear that this is a very in depth topic, however I was simply hoping to get the basic overview as he mentions that the groove and corresponding geometry on the locks are not what hold the valve. If this is the case, I would think that most people would not know that and then it begs the question of what does actually hold the valve. Now, part of me thinks it has to do with the swaging action of the lock halves against the corresponding taper of the retainer, but then that doesn't explain how valves can push through as seen in this video because if it was the swaging action, it shouldn't move anyway. Thank you for the research direction. If I can easily find something I will definitely take a look at least.

[@johnhein3915]

Those sr20 look stout!

[@JeremyFrazelle-or1mt]

Disappointed with the anonymous entries. Especially if they’re a cam manufacturer.

[@Twogreenfeet]

He said they will be revealed at test time. They just don't want phone calls yet.

[@jarlnieminen4307]

Don't confuse the chicken with the egg.

[@bigbad253]

There are no stupid questions...only stupid people.

[@andrewhunter6371]

comp gets there locks from PEP in las vegas....

[@alonzahanks1182]

I was going to say the locks he showed with differences look like stock chevys i have oodles of them but they never fail but theyre heavy compairing

[@tylermcintyre5177]

Are you superman?

[@tonyavila5556]

He would be porting Iron heads if he was superman!

[@homotorsports]

I got burned way to many times by Comp Cams.. they sent me a cam that they didn’t finish grinding.. I ordered push rods and received all different styles in one box.. rusted lifters.. all from Comp directly..All prior to Covid.. good luck talking with them on the phone

[@johncropek536]

Its not funny that something so little can cost so much.

[@alonzahanks1182]

no the locks are within spec ive even sun them at 10,000 rpm with wrong locks that the inserts go in with the Self aligning Roller rockers pushing down caps releasing seats before hitting top of valve and valve coming back up and relocking caps it doesnt work like your thinking the valve was locked in place they lost rod bearing and piston reached higher hitting locked in Valve and exploding or chunk of rod put in that dent . When extreme Bearings being Freshened is constant battle the weak link . oil using a Synthetic oil in racecar is a engine scatter waiting to happen Hows that? Synthetic oil clings to every thing and any thing Kind of defeats the purpose . Well the high rpm pumps the oil realy fast even faster with high output pump doesnt matter that you made oil flow back faster by by porting return holes it clings up in valve covers and on top of heads and takes awhile to flow back to pump by then the pump went dry and the cling did not support the bearings and 2 thousandths oil barrier was broken . and at 8000 rpm bearing seizes and got spun and cap went flying pistons hit valve and is even capable of shooting push rod right through steel rocker arm and my friend is still waiting for push rods to come back down . I watched them shoot off into space maybe aliens will return them some day loose valve locks were still locked on valves I use 50 weight racing oil doesnt break down and give consistant oil

[@joedavis910]

The head he is showing that lost the valve, is mine. The motor did not loose a rod bearing, the piston and rod were still intact. I have disassembled the motor, the bearings still look like new. The short block had 68 passes on it from new. The heads had the same from being freshened by Eric.

[@jakeblack4095]

Comp= race winning brands? Quality through their entire cooperation has gone down hill in my opinion. Those heads look badd ass! Run them on the 540

[@WeingartnerRacing]

Comp is the Edelbrock group not race winning brands. These will not fit a 4.5 bore.

[@flinch622]

Paypal disgusts me. I'd rather deal with messenger pigeon sevice.

[@MrGeorge1978]

Hey Eric, can you be a super hero and port my cast iron heads?

[@realazliving]

I guessing he doesn’t mention no cast iron heads in every single video because he’ll port cast iron if you ask. 🤷‍♂️

[@LoneWrencher]

Lykins motorsports anomalous entries

[@hotrodray6802]

???

[@LoneWrencher]

just guessing who the mystery entries is

[@MikeFL2TX]

Lykins has been open about his entry from the beginning. Even stated he has zero LS experience, but he did his math and came up with a cam.

[@LoneWrencher]

@@MikeFL2TX sorry,i did not hear his name mentioned when he called out the order in which they run,but i did hear his name a few weeks ago

[@MikeFL2TX]

@@LoneWrencher all good. I didn’t know he was doing the official list

[@normnicholson]

Sounds like the slow down you are experiencing is the fact that a financial recession is coming upon us all.

[@flinch622]

And as always, when recession is finally announced [which I think the feds 0.5% rate cut just signaled] its about over. The problem is...people get negative on the news, which needlessly extends the pain. Your butter/eggs/gas index plus local jobs is what to trust - forget BLS noise.

[@normnicholson]

@@flinch622 BLS is what?

[@flinch622]

@@normnicholson bureau of labor statistics

[@jmflournoy386]

There's aways one coming real soon now- or not right now I'm cash I was right at the last big downtown,(and got back in at the bottom) but I've also been wrong before Too old to take big chances IMHO market goes up slow but crashes can be fast

[@DSRE535]

There could be a very big reason for that coming up here soon

[@slopoke22]

@17:55 im basically a guy like you. So, ive been on flow benches and used clay to find where the air moves in many cylinder heads. Ive looked and found where the water is and thickness like that as well. I should've been posting stuff like this for the last 15 years. But my race stuff turned into general auto as well, which made me really angry many times! People are just, smfh, brainless. Ive quit workin on cars unless i have to atm. Tryin to get myself back into the heads and racing again now.

[@slopoke22]

Ive got something that would really aide in your camshaft challenge dyno days experience. I've thought about contacting you over it. I've been sitting on this for a while now, thinkin now could be as good of a time as ever.

[@WeingartnerRacing]

Go ahead tell me.

[@abdullaalameri90]

27:01 checking who is really watching to the end😅

[@fstjack6525]

What does it matter