Harvey, a lot of guys would be hesitant to share such in depth information, especially since I have no doubt you have MANY hours of work put in to perfecting your method. From a true rookie, I sincerely thank you. I have a huztl 372 clone kit on the way. ALL of the information you have shared, not just in this video, have saved me a ton of frustration. Again, thank you, sir.
Great video Ironhorse thank you! I will probably watch it several times to make sure i understand everything. Appreciate you sharing all this knowledge with us. You're a Legend.
Thanks Harvey! Awesome info! Hot days and not enough water will give you headaches. But you know that, Hope you feel better. I just got a degree wheel and am going to port a Pro Mac 700.
Very informative . Harvey I used to smoke and was trying to quit for years. But would bumm one when I would get around other smokers. And and i would get migraines. It took almost a year to realize that the cigarette was the of the migraines. But when I put 2 and 2 together. I have not smoked since and no more migraines. 💝😊🍵🍵
It's looking at to many numbers Ironhorse that you have got a 5 day headache so take care of off yourself and family until your next video stay safe regards Frank and Nanette Hopper from Australia cheers mate
Ironhorse, God Bless and Protect you!!! Bless you for sharing your wisdom with us. Ironhorse, this educational video was Pure Gold for me. What an education you gave me. Bless your kind soul!!!
The primary reason for porting is because when you build a no base gasket build, you change the port timing for most well designed cylinder and you must change the timing to make up for the fact you have lowered the cylinder .020 or so. Sure, you get a little more compression with a no base gasket build, but you also change other things. This is why I always use a base gasket on my saws. All base gaskets are not the same, either. They can vary from .015 to .040 inches thick. I use the steel base gaskets which are .015 inches thick plus a light coating of TB 1184 on the cylinder and case give me about .020 for the base gasket. So, if I start out with an .020 squish I end up with a squish of .040, pretty much along factory specs.
Good info buddy.i been getting headaches by afternoon logging in 93 degrees and muggy as a bitch. Not to mention bugs eating me alive.gotta love it. Lol.
I made an arbor for my new timing wheel, today. I wanted to make it out of aluminum round stock but could not find my, locally. I ended up making it from a 1.125 inch wooden dowel. I drilled and tapped one end 8x1.0 and the other 1/4-20. I am not going to be using it every day, multiple times a day. Wood should work fine for me. I mage it about six inches long. I will shorten it depending upon the s distance I need.
Hey Ironhorse! Any word on mac 10-10 cylinders? I'm looking to get one re bored. Always looking forward to seeing your new videos. Keep up the good hard work!
HEY HARVEY, I HAD TO BOTTOM THE PISTON SO MANY TIMES WHILE I GOT AHEAD OF MYSELF AND TOTALLY BLEW THE EXHAST PORT THAT I WAS SCRATCHING THE HELL OUT OF IT, SO I PUT A PIECE OF GORILLA TAPE OVER THE END OF MY HEX WRENCH, TRIMMED THE EDGES, AND NO MORE SCRATCHES. IT WAS A GOOD THING I BOUGHT THE CHEAP &26.95 BARREL /PISTON KIT, GOING ON PERSONAL EXPERIENCE , I FIGURED I'D BLOW THE FIRST ONE...NEXT ONE IS IN THE MAIL, ALONG WITH DOUBLE-CUT CARBIDE BITS FOR THE DREMMEL...I BLEW THROUGH ONE OF THE LOWER XNSFER PORTS WITH A CHEAP BIT I HAD TO FORCE INTO THE CUT-WHOOPS! SENT TINMAN A LITTLE INFO HE'LL SHARE WITH YOU...MAY BE INTERESTING.
Hey Harv I have a idea for a video that I think would be great for the viewers. What if we setup a go fund me account or something similar for a saw that we could watch you build. And you could send it to Buckin. If your interested I have a 74cc Dayton with the reed valves that I would donate and cash. I would really love to see this.
At my age, I always have to check everything three times. I made some bread the other day and left out one of the key ingredients. Needless to say, it did not turn out to good. 😀
Motion pro wheel. eBay it! Use a 13mm or half inch socket with a small bolt and nut and mount it on your degree wheel! Fold a piece of paper towel and put it over your nut and push the 6 point socket on! It should be quite a tight fit!
There is an optimum clearance around the edge of the piston and the head that forces the induction charge away from the cylinder wall and into a space in the head, which is normally a bowl or bell shape. A lot of two stroke tuning revolves around the shape of that space and the piston crown. That clearance around the edge is called a squish band, and it is ideally around 20-30 thou clearance between the piston and head right at TDC - it makes power by forcing the already burning charge into an area central to the piston promoting a faster rate of burn in the time before the piston begins to move down the bore. It forces the pressure in the chamber to momentarily spike and serves to cushion the piston right before/at TDC, avoid detonation or ragged burning and maximise pressure on the piston crown - which is the only actual work done in there to push the piston down and extract the most physical power from the process. The squish band and clearance is critical to getting all of the pressure applied at exactly the right moment to the piston - get it wrong and an engine goes from a willing smooth running powerhouse to a dog of a thing - or at least an engine that just doesn't make power properly... Sorry to get long winded, it's a really important aspect with two stroke tuning and we used to spend a lot of effort back in the day getting it just right by carefully machining or shimming the barrel, searching through the wrecked bikes for a different shaped head, endless hours of sanding piston crowns and head bowls to get that squish just perfect. The result was not huge power changes, but smooth tractable power when you are optimising the tuning. A lot of time was used getting the porting and pipe just right too, then endless rejetting until the engine would just sing. Something I don't think any young rider has to think of today but was normal back in the day. Just the same with all the mods we used to do to the performance model engines we used to build up for racing in the air and in boats. I have an engine in my shed that took me weeks to get right, but once I had it sorted it idles all day and then gets onto the pipe without stuttering and revs out past 16,000 rpm at will. Getting that squish clearance perfect on that 10cc methanol engine took days of shimming and made it go from a light switch to a dream engine...
Harvey, a lot of guys would be hesitant to share such in depth information, especially since I have no doubt you have MANY hours of work put in to perfecting your method. From a true rookie, I sincerely thank you.
I have a huztl 372 clone kit on the way. ALL of the information you have shared, not just in this video, have saved me a ton of frustration. Again, thank you, sir.
Stay hydrated and take er easy Harvey. Thanks for the video man!
Great video Harvey and Cullen. Learning a lot about porting.
Great video Ironhorse thank you! I will probably watch it several times to make sure i understand everything. Appreciate you sharing all this knowledge with us. You're a Legend.
Thanks Harvey! Awesome info! Hot days and not enough water will give you headaches. But you know that, Hope you feel better. I just got a degree wheel and am going to port a Pro Mac 700.
Harvey I just went through the same crap I put in red barn pop up skirt is longer really helped me ,Man vid perfect timing TY
Very informative .
Harvey I used to smoke and was trying to quit for years.
But would bumm one when I would get around other smokers.
And and i would get migraines.
It took almost a year to realize that the cigarette was the of the migraines. But when I put 2 and 2 together. I have not smoked since and no more migraines.
💝😊🍵🍵
Very well could be!
Thanks for the video, it answers some of my questions!
Great video horror thanks for taking the time to show us novice saw guys.
Much more complicated than it should be I’ve seen much faster way on johns custom saws but it’s nice to see more than one way to skin a cat
It's looking at to many numbers Ironhorse that you have got a 5 day headache so take care of off yourself and family until your next video stay safe regards Frank and Nanette Hopper from Australia cheers mate
Thanks Harvey we needed a tutorial like this. There wasn't anything that great about timing 2 strokes on YT.
Love the video. Thanks for explaining
Thanks for documenting and sharing you vast knowledge with us lay people. 😊
Bless you for sharing your wisdom with us!!!
Ironhorse, God Bless and Protect you!!!
Bless you for sharing your wisdom with us.
Ironhorse, this educational video was Pure Gold for me. What an education you gave me.
Bless your kind soul!!!
Awesome, high quality video too!
another excellent video. very helpful. keep them coming
I am going to break this down into 3 quadrants? doesn't get simpler than that. Thanks for sharing your knowledge have a great 4th.
This is an awesome build!! It's never been done so it takes a lot of time with trial and error. Patience is a virtue. Luke is a very lucky man!!
Thanks for the video harvy and Cullen
Great Job Harvey and Cullen. Harvey Praying for you Headache.
Hope ur headache chills out for you buddy hope you feel better.
Great video guys your information is helping me build better firewood saws, but Iron Horse take care of your self.
TY Harvey good vid
Thanks for the info
Hey Cullen. Where is Sgt Drake at tell pops to DRINK WATER be well fellas and thanks for the vid
U can lead a horse to water but u can't make him drink. Lol I pound water all day since bootcamp. Just a habit now I guess.
“When I pull the trigger it had better go” Ironhorse
John Wayne/ ironhorse.
The primary reason for porting is because when you build a no base gasket build, you change the port timing for most well designed cylinder and you must change the timing to make up for the fact you have lowered the cylinder .020 or so. Sure, you get a little more compression with a no base gasket build, but you also change other things. This is why I always use a base gasket on my saws. All base gaskets are not the same, either. They can vary from .015 to .040 inches thick. I use the steel base gaskets which are .015 inches thick plus a light coating of TB 1184 on the cylinder and case give me about .020 for the base gasket. So, if I start out with an .020 squish I end up with a squish of .040, pretty much along factory specs.
Good info buddy.i been getting headaches by afternoon logging in 93 degrees and muggy as a bitch. Not to mention bugs eating me alive.gotta love it. Lol.
Hey Tim!
@@theironhorse6600 morning buddy.gonna b a hot one.
Already is!
I made an arbor for my new timing wheel, today. I wanted to make it out of aluminum round stock but could not find my, locally. I ended up making it from a 1.125 inch wooden dowel. I drilled and tapped one end 8x1.0 and the other 1/4-20. I am not going to be using it every day, multiple times a day. Wood should work fine for me. I mage it about six inches long. I will shorten it depending upon the s distance I need.
you be right ya just old lol///you got there in the end so well done ////// me would have put 202 intake valves and 850 DP
That sounds like fun to me!! Mach 1!! Ops that's block 1 speed!! Be good Bill
:O that chainsaw
WHEELY HARV! WEEEEE! good info! thanks 4 video. be kind.
Have you herd the development on 2 stroke turbocharged or supercharged v6 engines for future F1!
harvey A deficiency of iron or vitamins can lead to headaches just trying to help : )
Great to see you hear!! It's nice to see someone concerned about somebody else!! He's a wonderful man. He's going to be okay. You rock sister 💪
ill take a look at your other videos but harvey , what are you running for a P38. what number you like to see?
Hey Ironhorse! Have a Happy 4th of July Holiday Weekend. Enjoy the Fireworks. 🧨 🎇 💥
Its amazing all the things that professionals such as this man and all pros can remember either that or I'm just another dumb dude.
Hey Ironhorse! Any word on mac 10-10 cylinders? I'm looking to get one re bored. Always looking forward to seeing your new videos. Keep up the good hard work!
what size you got 1.750????
@@pm270100 Yes
HEY HARVEY, I HAD TO BOTTOM THE PISTON SO MANY TIMES WHILE I GOT AHEAD OF MYSELF AND TOTALLY BLEW THE EXHAST PORT THAT I WAS SCRATCHING THE HELL OUT OF IT, SO I PUT A PIECE OF GORILLA TAPE OVER THE END OF MY HEX WRENCH, TRIMMED THE EDGES, AND NO MORE SCRATCHES. IT WAS A GOOD THING I BOUGHT THE CHEAP &26.95 BARREL /PISTON KIT, GOING ON PERSONAL EXPERIENCE , I FIGURED I'D BLOW THE FIRST ONE...NEXT ONE IS IN THE MAIL, ALONG WITH DOUBLE-CUT CARBIDE BITS FOR THE DREMMEL...I BLEW THROUGH ONE OF THE LOWER XNSFER PORTS WITH A CHEAP BIT I HAD TO FORCE INTO THE CUT-WHOOPS! SENT TINMAN A LITTLE INFO HE'LL SHARE WITH YOU...MAY BE INTERESTING.
What do you think about the meteor cylinder kits for the husky 372xp
Harvey what numbers do you like to see on a 60cc saw like a 61..172 as well? How about squish... same? 20- 25? Thx
Hey Ironhorse 👍
Hey Harv I have a idea for a video that I think would be great for the viewers. What if we setup a go fund me account or something similar for a saw that we could watch you build. And you could send it to Buckin.
If your interested I have a 74cc Dayton with the reed valves that I would donate and cash. I would really love to see this.
That's a cool idea
You mentioned flow starts at .060 inch. Is that why you kept going on the exhaust when to me it looked like you went to far?
At my age, I always have to check everything three times. I made some bread the other day and left out one of the key ingredients. Needless to say, it did not turn out to good. 😀
can't quite read the name on the degree wheel, who makes it and the correct adapter for the 61 crankshaft???
Motion pro wheel. eBay it! Use a 13mm or half inch socket with a small bolt and nut and mount it on your degree wheel! Fold a piece of paper towel and put it over your nut and push the 6 point socket on! It should be quite a tight fit!
@@theironhorse6600 you are THE MAN! thanks!
Hey, can anyone explain what ironhorse means when he talks about squish? Just curious, thanks!
Squish is the measurement between the Piston and the top of the cylinder at top dead center!
There is an optimum clearance around the edge of the piston and the head that forces the induction charge away from the cylinder wall and into a space in the head, which is normally a bowl or bell shape. A lot of two stroke tuning revolves around the shape of that space and the piston crown. That clearance around the edge is called a squish band, and it is ideally around 20-30 thou clearance between the piston and head right at TDC - it makes power by forcing the already burning charge into an area central to the piston promoting a faster rate of burn in the time before the piston begins to move down the bore. It forces the pressure in the chamber to momentarily spike and serves to cushion the piston right before/at TDC, avoid detonation or ragged burning and maximise pressure on the piston crown - which is the only actual work done in there to push the piston down and extract the most physical power from the process. The squish band and clearance is critical to getting all of the pressure applied at exactly the right moment to the piston - get it wrong and an engine goes from a willing smooth running powerhouse to a dog of a thing - or at least an engine that just doesn't make power properly... Sorry to get long winded, it's a really important aspect with two stroke tuning and we used to spend a lot of effort back in the day getting it just right by carefully machining or shimming the barrel, searching through the wrecked bikes for a different shaped head, endless hours of sanding piston crowns and head bowls to get that squish just perfect. The result was not huge power changes, but smooth tractable power when you are optimising the tuning. A lot of time was used getting the porting and pipe just right too, then endless rejetting until the engine would just sing. Something I don't think any young rider has to think of today but was normal back in the day. Just the same with all the mods we used to do to the performance model engines we used to build up for racing in the air and in boats. I have an engine in my shed that took me weeks to get right, but once I had it sorted it idles all day and then gets onto the pipe without stuttering and revs out past 16,000 rpm at will. Getting that squish clearance perfect on that 10cc methanol engine took days of shimming and made it go from a light switch to a dream engine...
@@theironhorse6600 Thanks for answering! Love ya Ironhorse and Cullen!
@@boatbeard7767 Thank you as well!
Boat Beard perfectly said! Well explained A!