@@servediocylinderheads As a viewer in the U.K. I am learning alot from this project & trying to translate it to my own (2 liter CIH Opel(GM) engine)). Keep up the good work & I wish you all well with the final outcome.
@Andys... This was expected when UTG put out a challenge for others to take on. With no time constraints or direction, and everyone busy doing their own thing, it peters out. It's a good idea, anyway, how much can you get from stock parts on a mundane engine. And chickens have longer attention spans than you tubers! 😊👍
I've done that in my drill press for polishing. Super stable and you can also choose whatever valve rotation speed you want. Depending on your results, I may begin texturing instead of polishing. I'm really glad I found this series of videos. Thank you for sharing these with us!
The closer to perpendicular the gas attack angle to the valve is, the less this should work, so, in theory, in the high lift phase it could even decrease flow, but low lift should be advantageous. Net result might be beneficial, though, eager to see the outcome. In F1, certain engine designers used a circumferential ridge, which seems to have a similar thinking behind it.
Great work Charles! I'm excited to see any possible flow differences with these and stock valves! After all, working on the valves in this manner not only make them stronger but lighter as well.
Charles, I appreciate your effort and meticulous data collection. It appears to me that UTG stir you up to make a 400 hp 2 barrel 318 is flogging a dead horse while he stays home smoking unfiltered cigarattes.
Charles, focus! Spot on as usual. Most people have no idea about the effect of stress risers on fatigue strength. The way i demonstrate the effect is with an ordinary piece of wire (a coat hanger is ideal). File a small notch in it near the middle and then holding it on the ends bend it back and forth. Very soon, you can see the bend is concentrated at the notch and this is where the break will occur. Do this again, but before bending, sand the slight notch out and you can see it will take much longer for the bend to concentrate in one area and will take much longer to break. Great video! Keep them coming!
Good demonstration 👍 Additionally, all internal engine parts are resonating at some frequency. When those vibrations collide at a stress riser (can also be a high spot, like forging or casting flash) they transmit that energy into a focal point. 🙂
Most people don’t realize that steel has a grain structure some what like wood. A sharp edge creates a fracture point for a crack to develop. When steel is heat treated it can become brittle like glass, that is why the hardness needs to be drawn back by heating it to its least acceptable hardness per application to give it a temper or toughness.
Should give a better and more evenly mixed air/fuel mixture at low valve lift up until the curtain area, where that and valve shrouding are the main factors restricting flow, and at this lift areas the mixture spends more time flow in the Back surface of the valve, so my bet is that flow will improve at low lift values but only due to the back cut applied not so much for the roughness, however I do believe the rough polish will improve mixing of air/fuel and while not showing up as flow values it should improve power, maybe even mpg. I dont believe it will do much if any for high valve lift values. Great vídeo!! Subbed.
“Chatter Finish” Love it! Bust up the wet flow, Your opinion may vary. Don’t toss those tulip valves. Th plan was work w the stock stuff. I’ve zip tied the trigger on a “pistol drill” to make a turning tool. Use what u got, and make it work.
Looks great ... if this delivers a better quality mixture which I think does and it looked that way in your Dychem splatter/spray results... any guess if power/response/fuel mileage would be improved ? Thanks
Thanks again Charlie. Would it be worth doing on the 193 head for the street?.I agree 100% on the strength. We had a 377 with polished X beam rods running a stock car at Eldora. 7800 rpms. Never broke one. It sounded like a Nascar .
I use my drill press to back cut and swirl polish valves, I use a flat file for back cutting intake valves. Exhaust valves are much harder so a hard stone in my die grinder will back cut exhaust valves.
Regarding polishing connecting rods; by removing local imperfections, I mean, nicks, in the surface of the connecting rod you prevent the concentration of lines of strain. When lines of strain become too concentrated in any localized area, it will exceed the strength of the material. This will lead to cracks.
One the average, what kind of improvement in airflow can be expected with this finish to the intake valve? Is it case by case or do you see similar improvements on most/all intake port flow numbers?
Cool. Hey, what about reversing the drill after that finish is on to lightly hit it again so maybe you can feel the roughness both ways with your finger?😎👍
I don't think this would add much performance to a road course engine that spent lots of time at high rpms and loads but I bet on a cold engine or a wintertime street cruiser it would show up as a noticeable change in how it performs.
Hey Andy, unless you are after that rough texture from the die grinder burr, as a sheet metal worker I would hit that shit with a flap wheel while turning like you have done, and if needed go over it with a rexcut wheel or a seaweed wheel (not sure the proper name) like David has shown in previous vids, but love to have seen this and from a sheetmetal workers perspective there is probably 5x times more consumables that you don't know about that could shorten your work time by at least half 😅 respond to me if you need to know more, otherwise am so glad to hear from you or David from Queensland Australia 🌏 man!
In your comments about this video, I sensed a tad bit of animosity towards this request from subs....too bad. Sorry for my interest in the completed project.
It is not animosity, I hate to put effort into a production and have it of poor quality. A video like this is a pain but if my audience wants this type I will do it. No problem.
@@servediocylinderheadsI am happy to learn a technique that I have never heard about before. I’ve restored old cars since 1974. Glad I found your channel
@@servediocylinderheads on iron heads what would you use inside them to make them look better?I bought a new set of bow ties back around 98 and had no idea they would look like the manufacturer got them in 3 separate layers and glued them together but ran out of glue or jb weld.i really like what I have in them now except that,will jb weld work or is there nothing I can do?
@@servediocylinderheads ok sir thank you for getting back to me and that seems to be the general thing I’ve been able to come up with.i appreciate your knowledge and again thanks
I think you are thinking it wrong on polishing the connecting rods or the surface of anything else for that matter. You said it makes them stronger from polishing. For the connecting rods, the strength was always there, by polishing them you eliminate the possibilities of the failure of stress cracking under load. For example a connecting rod that is ideal would have 100% strength when engineered on paper in its purpose, but when manufactured, the strength would be around 85% strength when compared to the engineered specs due to manufacturing techniques. When you polish the connecting rods, you are removing the failure points at say 86% strength and higher. The fact you are removing metal will make it weaker. You are sacrificing 1% of the connecting rod strength to bring up the 85% strength to 99% strength in its actual engineering specs. In actuality, you are just making the connecting rod more reliable, not stronger.
Thanks for continuing to work on the MIssion Impossible 318 project. It seems like you and David are the only ones still interested in it.
Maybe.
@@servediocylinderheads As a viewer in the U.K. I am learning alot from this project & trying to translate it to my own (2 liter CIH Opel(GM) engine)). Keep up the good work & I wish you all well with the final outcome.
@@pk512279 Thanks!
@Andys... This was expected when UTG put out a challenge for others to take on. With no time constraints or direction, and everyone busy doing their own thing, it peters out.
It's a good idea, anyway, how much can you get from stock parts on a mundane engine.
And chickens have longer attention spans than you tubers! 😊👍
@@outlawbillionairez9780 what can be expected from UTG ?
I've done that in my drill press for polishing. Super stable and you can also choose whatever valve rotation speed you want. Depending on your results, I may begin texturing instead of polishing. I'm really glad I found this series of videos. Thank you for sharing these with us!
You are welcome.
The closer to perpendicular the gas attack angle to the valve is, the less this should work, so, in theory, in the high lift phase it could even
decrease flow, but low lift should be advantageous.
Net result might be beneficial, though, eager to see the outcome. In F1, certain engine designers used a circumferential ridge,
which seems to have
a similar thinking behind it.
Great work Charles! I'm excited to see any possible flow differences with these and stock valves! After all, working on the valves in this manner not only make them stronger but lighter as well.
Thanks!
Thanks for sharing your knowledge, now I wish I had my old carbide tips. Can barely wait for the test on the two valves. Thanks.
You are welcome.
As an old machinist and tool&diemaker, I was interested in how you did this.
Thnx 👍!!
No problem.
Nice! Surface finish does affect strength -> Marin factors
Truly amazing work as usual. God bless
Thanks!
Charles, I appreciate your effort and meticulous data collection.
It appears to me that UTG stir you up to make a 400 hp 2 barrel 318
is flogging a dead horse while he stays home smoking unfiltered cigarattes.
Funny
@@servediocylinderheads what is funny, you sweating while UTG smokes laughing his grubby @$$ off !
@@MP-pz9oe Not to me.
@@servediocylinderheads you are a good man.
@@MP-pz9oe I do try. Thanks
Charles, focus! Spot on as usual. Most people have no idea about the effect of stress risers on fatigue strength. The way i demonstrate the effect is with an ordinary piece of wire (a coat hanger is ideal). File a small notch in it near the middle and then holding it on the ends bend it back and forth. Very soon, you can see the bend is concentrated at the notch and this is where the break will occur. Do this again, but before bending, sand the slight notch out and you can see it will take much longer for the bend to concentrate in one area and will take much longer to break.
Great video! Keep them coming!
Think of paper towels.
Good demonstration 👍
Additionally, all internal engine parts are resonating at some frequency. When those vibrations collide at a stress riser (can also be a high spot, like forging or casting flash) they transmit that energy into a focal point. 🙂
@@servediocylinderheads yep
Most people don’t realize that steel has a grain structure some what like wood. A sharp edge creates a fracture point for a crack to develop. When steel is heat treated it can become brittle like glass, that is why the hardness needs to be drawn back by heating it to its least acceptable hardness per application to give it a temper or toughness.
@@markhenke6043 Good info. Thanks
Should give a better and more evenly mixed air/fuel mixture at low valve lift up until the curtain area, where that and valve shrouding are the main factors restricting flow, and at this lift areas the mixture spends more time flow in the Back surface of the valve, so my bet is that flow will improve at low lift values but only due to the back cut applied not so much for the roughness, however I do believe the rough polish will improve mixing of air/fuel and while not showing up as flow values it should improve power, maybe even mpg.
I dont believe it will do much if any for high valve lift values.
Great vídeo!! Subbed.
Nice. Thanks
“Chatter Finish”
Love it!
Bust up the wet flow,
Your opinion may vary.
Don’t toss those tulip valves.
Th plan was work w the stock stuff.
I’ve zip tied the trigger on a “pistol drill” to make a turning tool.
Use what u got, and make it work.
They will be run! Thanks
Thanks, these videos have been very informative!
Nice!
Are you taking over where Roger "Dr. Air" Helgeson left off? Thanks for letting us in on this!
True story, D.V. said I did remind him of Roger quite a bit. Wish I could have met him.
Great information Charles, keep up the good work. Does the texturing work in most cases for a street application ( performance and efficiency)
I don't see it hurting unless the engine is direct injected.
Looks great ... if this delivers a better quality mixture which I think does and it looked that way in your Dychem splatter/spray results... any guess if power/response/fuel mileage would be improved ? Thanks
No idea. I know rough textures in intakes did work well on throttle body injection engines with poor wet flow.
Thanks again Charlie. Would it be worth doing on the 193 head for the street?.I agree 100% on the strength. We had a 377 with polished X beam rods running a stock car at Eldora. 7800 rpms. Never broke one. It sounded like a Nascar
.
193 for street works!
@@servediocylinderheads I believe that! Should I do the texture on the intake valves?
@@dondotterer24 Why not?
@@servediocylinderheads thank's
Thanks
I use my drill press to back cut and swirl polish valves, I use a flat file for back cutting intake valves. Exhaust valves are much harder so a hard stone in my die grinder will back cut exhaust valves.
I had to sell my drill press before the move as well....damn!
Awesome Charlie! Thank you brother! 👏👏👏😁
Glad you like it.
Regarding polishing connecting rods; by removing local imperfections, I mean, nicks, in the surface of the connecting rod you prevent the concentration of lines of strain. When lines of strain become too concentrated in any localized area, it will exceed the strength of the material. This will lead to cracks.
Good explaination. Thanks
Any concerns about carbon build up? Is it a case of "Time will tell"?
Great video & food for thought, thanks.
Carbon buildup on valves is usually coked oil leaking from the guide. Thanks
One the average, what kind of improvement in airflow can be expected with this finish to the intake valve? Is it case by case or do you see similar improvements on most/all intake port flow numbers?
It costs a small amount of flow. It does help with dykem flow.
Cool. Hey, what about reversing the drill after that finish is on to lightly hit it again so maybe you can feel the roughness both ways with your finger?😎👍
Hmmmm
Or hold the burr to grind in the direction to the edge of the valve to stop reversion?
I don't think this would add much performance to a road course engine that spent lots of time at high rpms and loads but I bet on a cold engine or a wintertime street cruiser it would show up as a noticeable change in how it performs.
I would say it depends on fuel prep before the valve. Thanks
Hey Andy, unless you are after that rough texture from the die grinder burr, as a sheet metal worker I would hit that shit with a flap wheel while turning like you have done, and if needed go over it with a rexcut wheel or a seaweed wheel (not sure the proper name) like David has shown in previous vids, but love to have seen this and from a sheetmetal workers perspective there is probably 5x times more consumables that you don't know about that could shorten your work time by at least half 😅 respond to me if you need to know more, otherwise am so glad to hear from you or David from Queensland Australia 🌏 man!
@CraigLandsberg-lk1ep This is Charlie's channel, but I appreciate your input.
"I was polishing rods" 😂yep you were 🙌
Well!
Could you show what effect this has on flow with a stock valve and your textured valve?
Stay tuned
I wonder if this valve treament might be even more effective on a port injected engine where the fuel is sprayed directly down onto the intake valve?
I would think so.
In your comments about this video, I sensed a tad bit of animosity towards this request from subs....too bad. Sorry for my interest in the completed project.
It is not animosity, I hate to put effort into a production and have it of poor quality. A video like this is a pain but if my audience wants this type I will do it. No problem.
@@servediocylinderheadsI am happy to learn a technique that I have never heard about before. I’ve restored old cars since 1974. Glad I found your channel
@@danielwoodard680 Me too!
my new way to decarbon intakes
That works. Thanks
Not being mean but wouldnt that cause grime or carbon to collect on the valves ?
I don't think so. Notice the blue barely touches it. Most of the build up on valves comes from oil leaking from guide and coking on valve.
Is not the head and the stem of a valve 2 separate pieces of metal resistance welded together?
Some are, some are one piece. Good point.
i think only if sodium filled
@@aeroflopper I think lots of original designs are two piece. Some have stems designed for wear resistance and head designed for other specifics.
What did Curley think of the texture?
Who?
Like Elon Musk says, doesn't matter what degree you have. What matters is what you can do.
I like it!
I wonder if I might ask a question of you and actually get an answer cause I’m having trouble finding info
Charlesservedio@gmail.com
@@servediocylinderheads on iron heads what would you use inside them to make them look better?I bought a new set of bow ties back around 98 and had no idea they would look like the manufacturer got them in 3 separate layers and glued them together but ran out of glue or jb weld.i really like what I have in them now except that,will jb weld work or is there nothing I can do?
@@barrykilts4506 jb weld professional works well, mixed with lots of iron filings and on a clean rough surface.
@@servediocylinderheads ok sir thank you for getting back to me and that seems to be the general thing I’ve been able to come up with.i appreciate your knowledge and again thanks
Excellent work as usual! (~_^)-b
Old school ways was to have a swirl polished valve 🤔
I can show how I swirl polish as well.
One down, 63 more to go. - Bugatti mechanic.
I can't imagine...
I think you are thinking it wrong on polishing the connecting rods or the surface of anything else for that matter. You said it makes them stronger from polishing. For the connecting rods, the strength was always there, by polishing them you eliminate the possibilities of the failure of stress cracking under load. For example a connecting rod that is ideal would have 100% strength when engineered on paper in its purpose, but when manufactured, the strength would be around 85% strength when compared to the engineered specs due to manufacturing techniques. When you polish the connecting rods, you are removing the failure points at say 86% strength and higher. The fact you are removing metal will make it weaker. You are sacrificing 1% of the connecting rod strength to bring up the 85% strength to 99% strength in its actual engineering specs. In actuality, you are just making the connecting rod more reliable, not stronger.
More reliable, i.e., able to handle higher loads without failure. STRONGER
That is slick.
Is that good?
@@servediocylinderheadsabsolutely
PROJECT! 318! NEVER! EVER! DYNO!
@@JamesJanney What a waste.
Put the valve in a drill press..much easier..
I wish.
Just chuck it up in the lathe
I sold my lathe before moving to Florida. I hate that.
@@servediocylinderheads So use some of the millions you make from youtube and buy another one!
@@kennethstaszak9990 Hysterical... find out what they pay.
$100 per 10,000 hits on a video.
@@markhenke6043 I get about $4 per day. If I spend 2- 3 hours making a video. So you are right, I am rolling in it!