I am a subscriber who has no intention of rebuilding my own engine or even getting a rebuilt engine. However,, for me, the channel provides the best way for me to learn about engines. This video was a great way to see how this all comes together. Thank you.
@Myvintageiron75123 жыл бұрын
Thanks for sharing
@richdouche8253 Жыл бұрын
Around 30:00 you start talking about LSA... I agree with David Vizard's experience that LSA is more critical than lift and duration. That one should select an LSA first, then the overlap, and THEN the duration and lift be what they are to acquire the first two parameters. My understanding is that LSA is so critical because the whole objective of building a performance engine is getting maximum cylinder filling based on the parts you're going to use. The LSA accounts for using the exhaust pulse/flow/vacuum in conjunction with the head's intake flow characteristics to maximize this cylinder filling. Then select your overlap to get the idle vacuum needed, and where you want your peak power output in the rpm range. Naturally as engine speed increases, air and fuel do not increase their speed at the same 1:1 rate, so the engine would need more overlap to get good cylinder filling at higher engine speeds. That selecting a cam's specs this way will result in a given performance engine that makes more power (tq &hp) EVERYWHERE in the engine operating range (ex: "2000-6000 rpm") than selecting a cam without the optimal LSA, while instead focusing on duration and lift... As it does seem most people suggest how it should be done. Even the cam companies. Makes perfect sense to me.... Great video... Thank you!
@terryr.12063 жыл бұрын
Fantastic ! I want you to know that we all very much appreciate your teachings and how you explain the function of an air pump. I’ve learned so much from your channel. I built my first engine by watching my vintageiron!! And it is a ground pounder!!! Just want to say thanks, I couldn’t have done it without you. Luv the video!!! Keep keeping it 100!! Thanks
@Myvintageiron75123 жыл бұрын
Thank you very much!
@elinehemiah81563 жыл бұрын
I guess im asking the wrong place but does any of you know of a tool to log back into an Instagram account..? I was stupid lost the login password. I would appreciate any assistance you can give me!
@lyricnash13903 жыл бұрын
@Eli Nehemiah instablaster :)
@elinehemiah81563 жыл бұрын
@Lyric Nash I really appreciate your reply. I found the site through google and I'm waiting for the hacking stuff atm. Takes quite some time so I will reply here later with my results.
@million655553 жыл бұрын
Great video, thanks. Ed Iskederian wrote a great book on cams back in the 60"s. You can still find them online.
@anthonyardizzone379217 күн бұрын
Super job of explaining what you need and why to build an engine using math not myth. Thank you.
@stephenrocque84583 жыл бұрын
Excellent set of videos on camshafts selection. Keep up the great work
@Myvintageiron75123 жыл бұрын
Thanks 👍
@alexanderserrano78622 жыл бұрын
Just bought a C5 corvette to use as a drift vette/daily commuter. Been looking for an informational video on camshafts and stumbled upon your channel. THANK YOU so much for putting out such concise and well explained videos packed with knowledge! I've learned so much from this I honestly feel like I owe you a beer at least or something! Lol
@lcelord39413 жыл бұрын
this is great knowledge and seeing the math back it up really cemented it in my head
@coachgrizz6023 жыл бұрын
Bought myself what I thought was a dirt and oil covered 1967 Ford 390 FE, and thought I could rebuild it based on what I remembered from high school and what I learned watching you. But I think what I thought was a 1967 engine, turns out to be a 1961 MEL engine. From what I read this engine is not a normal engine, looks like I might have to start all over with my education. Oh well. Your videos are great. I see your UTI shirt. I went there in 1985 but took the air conditioning course. Thanks for the videos.
@dantemalone27043 жыл бұрын
Absolutely the best camshaft selection video EVER!!!!!!
@Myvintageiron75123 жыл бұрын
Thanks
@misters28373 жыл бұрын
WOW, You laid it all out! I have built quite a few of 351W based engines, (I am a "FORD GUY" but realistically the "AIR PUMP" doesn't matter what logo is cast in the side of it!) and more CID per cylinder changes cam choice as well (A Radical 289cid Cam in a 410cid engine seems more much tame!)..I was guessing for that FIRST head, Flat Tappet, Nice Street "Cruising" Car (Like that 1968 Mustang you were working on w/GT40P heads, "Just upgrading a mostly STOCK 351cid Carbureted engine, with stock drivetrain") - *stock converter* .450/.450 on lift... and "Guessing" 218°/224° @.050...on a 110° LSA.. So I grabbed My Comp Book... In the Comp Book...XE262H cam is a good choice without making it TOO radical, has .493/.500 lift which is at the VERY high end of your "Example" .450 lift heads range 218°/224° and 110° LSA...but you could choose a different/custom grind, or go down to the XE256H and make that 351 a little more smoother at idle...I wouldn't but that's ME, unless there was a "NO LOPE" request. The D3OE 1973+ 351W Hyd Cam specs I have (Which Could be WRONG) are .416/.445 198°/208° @.050 115°LSA (Plus ran Really Retarded!) WOW no wonder those emissions engines were so LAZY!
@williamhill1393 Жыл бұрын
I wanted to say thanks for putting this video out. I got out of building engines for basically a few decades and recently wanted to start doing it again and have forgotten a lot of this stuff.
@BubbaAyers19693 жыл бұрын
It’s close to your first video of this.. this is stuff we used back in early 80’s, if ppl will do the numbers they will be happy with there engine, we’ve built many of them using this, great video
@beniamino9393 жыл бұрын
This was a great video. Thank you for the knowledge about something so overlooked in motor building.
@skippersdad7860 Жыл бұрын
Great job on this video. I'm getting ready to build a Ford truck motor & would have made big mistakes if I had not run across this video.
@CLCustom19112 жыл бұрын
This is, by far, the best overall explanation of the magical bump stick in one place, at one time. I think the only thing I could ask to add (unless I missed it) was the relationship of amount of valve duration overlap and exhaust scavenging as it pertains to clean combustion and such. But, that's kinda minutiae compared to the big ticket items of lift, duration, and how the heads play the pivotal role in potential horsepower production. Excellent, excellent video and information. EDIT TO ADD: LOL just started part 2. subject #1....... overlap and scavenging!! YOU ROCK
@glennmiller90312 жыл бұрын
The cam has always been a mystery to me. Thanks for clarifying this for me. I am looking forward to watching part 2.
@danielcrmstr11482 жыл бұрын
Damn...I feel like I was just given the keys to the kingdom! This will help greatly. Thanks!
@traderjoe107 Жыл бұрын
Tons of knowledge packed into 47:18 minutes.....Thank you very much!
@chrisbergeron8602 жыл бұрын
Wow. Really enjoyed this video. Lots of info to consider. So you basically need to design your motor on paper before you decide to build.
@Myvintageiron75122 жыл бұрын
Yes, exactly
@mickcnd26572 жыл бұрын
This is the best informational video I've seen on this subject. K.I.S.S. It is easy to understand and way better than that friend of a friend who just happens to be an expert. We know how that ends. Thanks again and let's keep the Legacy alive.
@kevinw62823 жыл бұрын
Cam school! Love it. I know this is from a few months ago, but timeless videos. Wish you were closer, have a Pontiac 350 that I'd love for you to work on similar to the one you did in your video series. Loads of great info on your channel, really appreciate the effort that goes into it and the education.
@darrylthornton5377 Жыл бұрын
Great explanation of camshaft characteristics!
@jasonmassengill7865 Жыл бұрын
Thanks for your videos. I like how you break things down to understand. Appreciate it.
@graeme500 Жыл бұрын
Such a helpful video. And so logically explained. Thanks!
@Myvintageiron7512 Жыл бұрын
Glad it was helpful!
@jeremyjames833 жыл бұрын
What a great video.!!! A great expansion of the last video, which was also a great video. Thanks for the knowledge, and the willingness to share it.
@bradnimbus48363 жыл бұрын
Hey buddy! Just in time! I have both a 302 and a 351 that I'll be working on here right away. Thanks for doing what you do!
@19jody723 жыл бұрын
I'm finishing up my 302
@mikehunt74833 жыл бұрын
Holy snickies I learned A LOT with this video.. Thanks a bunch!!
@doglegjake67883 жыл бұрын
this dude is bad ass ... rumor has it he has a grizzly bear carpet in his living room but the problem is its not dead it just lays there because its afraid to move ..
@vonheimlerstrudel Жыл бұрын
I love this channel. I learn a lot. Thank you.
@pompeiimotorsports37229 ай бұрын
Great info, I am all about the science behind engine building
@pyrochuck48563 жыл бұрын
Fantastic video and information. When you went to calculating all of that spring pressure on the cam I think the only way you would hit that scary number would be with all springs being compressed at once. Not saying that it isn't a significant factor here it just caught me a bit askew while watching the video is all. Thanks again for ALL of your great videos sir.
@privatedata6652 жыл бұрын
Great video & LS guys using stock heads can do almost all of this because flow numbers for head castings are readily available
@mechRuud Жыл бұрын
Great video, At one time I felt I needed to raise my hand to go to the bath room.
@Uppercut3143 жыл бұрын
Appreciate your videos, for REAL!! They answer so many questions! Thanks for your knowledge! 👍
@jblovell90652 жыл бұрын
Good information video if you don't go with expensive top end kits allowing you ability to design your own engine kit with your preferences
@timshannon6363 Жыл бұрын
Great video, I learned more from this video than I have in 30 years
@robertclymer69483 жыл бұрын
Yep, always have known you need to match the cam with the heads. Makes perfect sense. Probably why the top end kits are available, including the intake and timing chains. Good video. Thanks for sharing!
@w41duvernay3 жыл бұрын
THIS VIDEO that you have done, Myron, has to be your greatest. YOU have even shown us how to figure out how much power we can expect from an engine size by its head flow. WAY to put that knowledge down. NOW if you could show us how to predict how fast in a quarter of mile time to expect a car will be, and how to properly gear it so it would run the traps at peak pwr. I look forward for the vid of the Pontiac stroker.
@jeffrey45472 жыл бұрын
gm does build a street strip trans but i do agree that u build for racing or u build for the street . if u ever find a 400 turbo with 02xx welded on the bell housing u have a very good trans stock good to 800 hp i have 4 sitting right now have a another set up to go get 450 hp 454 with the 02xx trans for free running good . i put one in my 68 chevy pu and the engine is perfect for a street set up good sound to the cam runs hard put a 850 with a street weiland high rise and it came alive the trans is very good and solid shift has the 8 bolt pump heavy clutches stage 1 shift kit saves me a lot of money on builds plus u just can't beat the looks of a big block in a rig in my 68 chevy pu it fills the engine compartment all most to big the main fan has a 1/2 inch from pullies and about 1 inch from the radiator then put 2 pusher fans on front that comes with the engines set the wiring up for a serpentine belt alt. and can go back quick to internal or external alt
@rivzilla71422 жыл бұрын
Thank you for making your vids, Super informative and direct 👍
@PTucker08643 жыл бұрын
On my Ford 306, I chose a single pattern cam with a bit of overlap because I opened up the exhaust bowl and port roof a tad while smoothing it's transition to the exit. Granted these were stock heads with slightly bigger valves, I thought some overlap would help build some cylinder pressure to compensate for the low compression heads.....it has a lopey idle, but it revs right up toward 6000 pretty quick. It works okay with a manual transmission.
@1Rad65Futura7 ай бұрын
thank you for setting the record straight!
@Thumper683 жыл бұрын
Either this is same video you re posted or I’m having perfect deja vu or the Mandela effect is real!
@LSxHunter3 жыл бұрын
Totally a repost but worth watching again. Thought I was losing my mind
@Thumper683 жыл бұрын
@@LSxHunter yeah I watched it all again too. Either way he deserves the views he makes good content that can really teach people who are uninformed.
@kosworkshop3 жыл бұрын
Love the video. Perfect for those of us who are new.
@michael9313 жыл бұрын
I don't remember part 2 before though...
@Thumper683 жыл бұрын
@@michael931 part 2 was never seen before bonus scene. Directors cut
@sonyhk38243 жыл бұрын
This is a treasure video. I appreciate your work it's awesome you are a wonderful teacher man, big thumbs-up 👍. Cheers 🍻
@donveterano39443 жыл бұрын
Thank you so much for all your videos! You helped me a lot to get deeper into all that "science" (beside some literatur). Currently building my second FE and thinking about to do a higher rpm setup. Best Regards from Germany- stay healthy!
@mechanicsteve23203 жыл бұрын
Great informative video my friend! Would you consider making a video of the gains to be had by just switching out rocker arms and valve springs without even changing out your factory cam? Alot of people seem to overlook the difference a good set of rocker arms make. Thanks again for all the knowledge you share!
@oldschool-ef4jz3 жыл бұрын
Great information and it's this kind of information I could have found 35 years ago and I would not have a engine that I'm finally going to ger right
@robsimms27663 жыл бұрын
Learned a lot about how to select cam shafts. Like the formulas
@elliottbutts1533 жыл бұрын
Great vid. I’ll have to check the numbers on my Fox body set up. Has GT40P heads with a Comp 272 cam. Most numbers on that head show 198cfm at .600. Honestly I went with that cam based on info on the internet and the same combos other people were running
@elliottbutts1533 жыл бұрын
Correction. Comp 274 cam. Gross lift is .555 and .565. Head flow cfm is 195 at .400, 198 at .500 and 194 at .600. So I believe this cam should work decent with this head. Obviously the GT40P head is restricting some power but I’m doing a budget build. They flow better than the 158 cfm at .600 on the stock E7 head.
@bagman2163 жыл бұрын
Bro no homo, I love you, I would love to get trained by you. Right now I'm looking for a GM school, I want to be a engine builder. If I would of knew this I would of went to school for this for sure. Thank you man
@robertpilcher37022 жыл бұрын
WOW That is all great information and you did a fantastic job teaching this subject! Thank you!!
@Myvintageiron75122 жыл бұрын
Glad it was helpful!
@TxStang3 жыл бұрын
So good aftermarket heads for my 5.0L H.O. to replace the crappy e7 heads . Thanks for the insight , I'll choose heads before buying the Cam .
@Tomvans80283 жыл бұрын
This video is very informative I appreciate your videos
@Myvintageiron75123 жыл бұрын
Glad you like them!
@brocluno013 жыл бұрын
Let's say we are building a small block for a family jet boat. Using factory cast iron heads. Don't need much bottom end for the boat to idle around. Need some decent mid-range to accelerate the boat onto plane and maybe pull up a skier. Need max TQ at 5,000 RPM to maximize the strength of the input to the jet pump as the boat reaches max speed. We have wet exhaust, so we need to stay out of reversion to keep it from sucking water vapor back into the exhaust port at idle and above. Cam will end up being something like 270* at 0.450" lift with an LSA of 112* or so. Installed straight up or maybe 2* retarded to help max upper range power. Can get near 1 HP per CI even with this small a cam and not a ton of carburation : ) This same motor would not be terribly fun on the street, but with a few tweaks, it'd be OK. Advance the cam 4* to help with lower end power and launch and it'll work. This is why there are so many boats getting bought off CL just to flip the Marine Engine. And Marine Cams get used in some street applications.
@nv14933 жыл бұрын
Using this for the cam selection for my 454... Great info.
@Myvintageiron75123 жыл бұрын
Have fun!
@donaldhill27752 жыл бұрын
Building a Ford small block for the 1st time flat tappet & solid lifters, wanted to ask about the break-in proceedings which seem a little excessive, special oil, special weak break in valve springs, start up and immediately run it at 2500 for 1/2 an hour, starting to make me nervous ! Pretty sure they didn’t do this with new engine’s back at the factory in 1960 whatever, was planning a more gentle approach to this, put some oil in and fast tick over while it warms up for 15 minutes and check everything out, all advice welcome 🙏
@randalchandler23663 жыл бұрын
Good videos. I've watched both parts and now I know I have the wrong cam in my sbc 400. Its .30 over with flat tops. I felt a 400 needed compression and good heads so I used OEM Vortecs since they are better than the Camel humps. I used a .450 lift because of an equation I found years ago and because I didn't do modifications to use more lift. However it is a single pattern cam with 104 lobe seperation. I'm taking the cam out as soon as I figure out the correct duration dual pattern cam.
@loafbred3 жыл бұрын
You covered a lot of territory there in a short amount of time, and should be required viewing for anyone interested in hot rodding. One thing I'll add to simplify the real downside of longer overlap in a street driven car, is think of cylinder pressure at lower rpm. With a lot of overlap, you'll effectively have low cylinder filling and low cylinder pressure until you reach the optimum rpm range that a long overlap cam is meant for. Not only is it jerky and sluggish at lower rpm's, but it gets poor fuel mileage and runs really dirty. Forget about power brakes and air conditioning, too, unless you want to have it idle very high. If you're just planning to drive it occasionally, for a short distance for fun, you'll need 3.73 to 4.10:1 gears to really enjoy it. Another thing to consider when you run higher rpm on average, is valve and seat wear, which really speeds up with increased rpm. Sorry, I had to add my Debbie Downer two cents for those who love lopey cams.
@jamesleeson66803 жыл бұрын
Dude, thank you. That was the best education online yet. Early 90s I only guessed at parts.
@Myvintageiron75123 жыл бұрын
Glad I could help!
@matthewwisenbaugh38833 жыл бұрын
Peter with great power, comes the right cam, heads, crank, air flow, pistons, carburetor, or injection system over build be safe.....
@tomashton17813 жыл бұрын
most folks try to install a cam in the 5000 to 8000 rpm range in a motor that cant rev that high, the other deal is, like on a chevy or ford, if you change rocker ratios from 1.5 to 1.7,on a stock cam and it runs better thats when you look at cam profiles, more lift and durationusing a vacuum gauge will tell you a lot.
@rayspringer80553 жыл бұрын
You are one smart guy...thanks bud...
@moparnut62863 жыл бұрын
Great video...and very logical in your methodolgy I enjoyed this video very much and learn something at the same time... thank you for posting it.
@texasplumr3 жыл бұрын
This is exactly why I don't even try to make that decision, I use a professional like yourself. I actually have a 350 crate engine that I installed in my truck 20 years ago that I'm fixing to put the Holley Sniper on and I really want to replace the heads and the cam at the same time and I won't be making that decision. I'll pay for it but this isn't something that I'm qualified to do. I know what I know and I do those things that I know very well and this isn't one of them. I'm happy that there are people just like you in the world.
@fredmcmichael57273 жыл бұрын
A true aha moment for me. Many Thanks!!
@Thumper683 жыл бұрын
Saturation is like friction loss when trying to push large volumes of water long distance through too small diameter of pipe.
@doomman700 Жыл бұрын
Go to the cam catalog pick the cam you want. Then buy the cam that is 2-3 sizes smaller and you will probably be close.
@kevinvaught11883 жыл бұрын
Thank you for this information. Very useful. How about a video on how to flow your heads?
@moesizlac25963 жыл бұрын
There is probably some math you could apply. Springs have mass and spring rates and you should be able to find the actual mathematical point where the amount of hp gains (at max flow) is perfectly matched to the lowest possible parasitic load from the springs. That would be even better than ball-parking. I bet GM's 420 lift is very close to that perfect point. It might not be the most power that can be made by that engine, but rather the most power with least effort, which should translate into more efficiency and more durability. So in addition to usage type (strip vs street etc) the amount of reliability (endurance) gets to be more of a factor with this move toward a more precise design of the engine. Thanks for moving us all a bit further in that direction.
@wvlfkvnt3 жыл бұрын
You taught me how to degree a cam back in school. Good times.
@ASLDAVIS2 жыл бұрын
Awesome Info !!!! Thank you
@rodolfocristovao3 жыл бұрын
this is amazing. been reading hundreds of forums and getting nowhere. this is a scientific fact-driven approach. used this math to evaluate a new cam keeping same headers and saved me $ of money. will write a blogpost on FSB once im done. I haven't figured out how the intake manifold (upper and lower) restricts the air flow per piston in your formulas. e.g. if I have a stock 302 lower intake with 150cfm, that means I will get nothing upgrading the headers as the stock headers already get to +150cfm at .500 lift. would it just bake in the % air flow e.g. head_to_intake_%_airflow? PS - just one tiny note on the % of flow. in the video you mention dividing the higher number INTO the lower and confused me a bit. (wording issue with "divide a into b" vs "divide b BY a"). And rounding the 128/197 is actually 65% vs 64% :-)
@That38Guy3 жыл бұрын
Thanks for your efforts making this informative video.
@jamesperry19442 жыл бұрын
This video is amazing. Thank you for taking the time to do it.
@Myvintageiron75122 жыл бұрын
Glad it was helpful!
@adamc84093 жыл бұрын
Ive always said match the parts together. Don't run a huge cam on stock heads or stock exhaust, aim for high volumetric efficiency. With cams in general on stock heads 450 lift to 480 is ideal on performance heads i would say don't exceed 550 or you get reversion unless you have very good flowing exhaust. Also the higher the lift the more energy it takes to open the valve. For a good chop high lift isnt the only way lobe separation angle also changes the cam sound without a huge lift.
@shadowopsairman15833 жыл бұрын
Dyno a vehicle to get bhp/whp and then set a target hp/rpm range with efi/obd2. I want a mild hp boost but i need a dyno run on my 2007 bowtie classic 4.8 to see what is needed to get 300HP.
@100amps3 жыл бұрын
Great video. Made perfect sense. I’m guessing the high-end aftermarket head companies publish their flow numbers then, right?
@Myvintageiron75123 жыл бұрын
yes
@rodshuffy4045 Жыл бұрын
I really like your detailed videos, keep it up. The coil spring vs compressed height vs pounds of force required seems technically correct but not all springs are compressed at once and once compressed they have potential energy they release when rocker arm fulcrum goes back up. Basically, assisting the next coil springs downward action. Its basically a zero-sum game with the springs with the exception of friction. Thats kind of the purpose of a spring.... storing energy. I think the initial force required to compress the 1st spring is input electrically via the starter. Am I missing something?
@dougbunyard27243 жыл бұрын
Not sure if you're still looking at the comments but here goes.. really awsome presentation! I've watched this several times and will probably continue to do so. My question is on flow percentage. Ls3 head. 823. So the stock cfm numbers aren't bad. Like 312/216 @.600. These numbers are still below 75 percent flow. With the dual profile cam I'm assuming that will increase the flow percentage? To calculate With a dual profile I also assume I would use the lift numbers on int/ex respectively? Also Is there any advantage to porting just the exhaust? To increase the flow percentage? I. I'm building a ly6 block bored to 6.2( saw your video with much interest) lol. Going in a jk jeep. Daily driver-ish and want a solid 400 hp at the wheel. Just cuz! Lol. Also I'm going to run the vvt. If you see this and feel like responding I'd appreciate it. Really liking your channel. Doug
@matthewjeschke3 жыл бұрын
thank god for your help. the orgy of cam dyno testing is fun to watch, but virtually, completely unhelpful. You are getting me dialed it :) The one thing throwing me for a curve is, how do I factor in good gas mileage?
@JM-hv3ev3 жыл бұрын
Too many ads but brilliantly informative! 👍
@toadamine Жыл бұрын
Curious if you have any similar insight on how to select intake runner volume and valve size... Love your videos, very educational, subscribed.
@Myvintageiron7512 Жыл бұрын
Great suggestion! I'll work on that
@davidbelcher55543 жыл бұрын
great info as always. could you talk about the difference between tri-y headers and 4 into 1. and whats best for what application.
@teddysmith4573 жыл бұрын
You are a great teacher thank you
@Kingfisher22258 ай бұрын
Great video but one thing i want to point out. Your example of lift spring pressure is off. You used 16 springs being lifted as acting against your crank but in actuality each cylinder fires on its own so there is only 1 set of springs being lifted to max tension at a time not 16.
@Brian-pi1yf3 жыл бұрын
Good information. My question is: If I need to get a dual profile cam because I only have 70% flow rate how do I know how much to increase the duration of the exhaust lobe to increase the flow? I have a set of 461 fuelies you probably know off the top of your head exactly what cam works best in these heads..I'll probably do some porting on the exhaust
@christophercullen12363 жыл бұрын
Brian did you get a answer to this question , I was about to ask the same question ? Christopher from Down Under
@Brian-pi1yf3 жыл бұрын
@@christophercullen1236 No reply
@jeremycottrell1382 Жыл бұрын
Thank you so much for this information! I know understand way more about camshafts and cylinder heads than an hour ago! I love the calculation to determine how much lift an engine wants or needs. Is there a similar way to calculate how much duration an engine needs for a particular RPM range?
@Myvintageiron7512 Жыл бұрын
The Cam Manufacturer will list the RPM power range of each cam your duration will determine the RPM where the cam makes peak power You just need to figure out your Engines red line and match the duration accordingly
@jeremycottrell1382 Жыл бұрын
@@Myvintageiron7512 Great. Thank you for the quick response!
@GS1663 жыл бұрын
The best videos out there! Thanks
@MindDezign3 жыл бұрын
Great information. Thank you for your work.
@williamcharles94803 жыл бұрын
Thanks for sharing your knowledge through these videos. Do you give much validity to the statement that cast iron heads will produce a slightly higher compression ratio through the fact of their ability to retain heat over aluminum heads? It's a given that the aluminum heads may be preferred because of the lighter weight factor that may negate any power increase derived through an iron head's heat retention factor, but can you give an approximate range of compression ratio increase for an iron head over aluminum with the same combustion chamber volume? Thanks for all that you're doing to further the hobby, looking forward to viewing all of your videos as there's so much to learn from them.
@thejustintimeyeah2 жыл бұрын
best video ever.
@Thumper683 жыл бұрын
Most of the time really lopey cars you hear on street run like 🗑 when they get on it leaving anywhere you will always hear them letting off and getting back in it because it’s loading up and just running like garbage because it’s way to much cam for their lack luster build. But it sounds cool in the parking lot yeah!!
@k.c.williams33852 жыл бұрын
I've learned a lot from this video 👍
@Myvintageiron75122 жыл бұрын
Glad it was helpful!
@mikeanthony39863 жыл бұрын
Excellent information. Thank you sir.
@52gerg3 жыл бұрын
Fantastic information! Thank you!
@Myvintageiron75123 жыл бұрын
You bet!
@TheLostBrain2 жыл бұрын
Thank you putting this together! The formulas for estimating max potential hp of the heads is great. Do you know of something similar for calculating max potential HP of the bottom end as well? For Example lets say you calc that your heads can support up to 600 hp. However, if the displacement, compression, etc. in the bottom end is not there you wouldn't actually be able to make that 600 hp, right? Thanks again
@westonlee97783 жыл бұрын
Where is your shop located and what is your backlog of engine builds? How could I contact you privately? Thank you sir
@66fairlane500 Жыл бұрын
don't remember if it was this video of the two it was but you mentioned the FPM of flow around 4000. how do you get this calculation? Is there a tester I can get to show FPM? I tried looking this up and I can't find anything about it.
@DXB99934 ай бұрын
416 NA LS ported L94 head 6l80 What size of camshaft will work on it on daily driver?
@alexandrekachler86783 жыл бұрын
Great video but not that much different from the original one. Wahr about compression ratio for the cam selection ?