10 49 pm that looks like it will b a runner I hv faith in ya it will b awesome I am learning a lot from u thank u for sharing

I use the 272 piston. It allows me to cut a tapered squish band (13 degress). I don't cut the base at all and lately I have been cutting the cylinder head off and making my own with a cooling fins etc. This has opened up all sorts of possibilities and I far as I can tell a lot more power.

Tinman, I built a 372 with a 268 piston. I had a farmertec cylinder with .060 squish with no base gasket. I put the 268 piston in with a base gasket. The squish is now .019 and it's been ported. It has 82 degrees of intake timing because of the short skirt. It has to idle high to stay running but it's a fast cutting saw.

Hey man! Like to see that kind of 372's videos!

Piston work only is very interesting! You and Harvey definitely have my attention!

Can't wait to see this one unfold!!! Awesome video Tinman!!

@tinmanssaws

Жыл бұрын

Hey buddy, thanks so much!!

Tha 372 is the saw I want to build thanks for these videos!

Love these info/ tech detailed videos I’m looking to take my time with a 266 52mm build I’m working on next , start slowly with stock, then transfers, the exhaust and intake timing like the 372 Harvey sent to you. I just didn’t have the patience with my first 266se and grinder everything I could lol. Thanks again brada tinman and see you on the next one

Recently discovered you through Buckin's channel. So interesting & technical, amazed at the experience coming out. Didnt realize how involved it is with every little modification you choose to make. Simply explained. Thanks

Just found this channel and I love it! The builds and the way you explain technical information is awesome 👍 keep up the good work.

@tinmanssaws

Жыл бұрын

Thabks for the kind words and welcome to the channel!!

Thanks for explaining this stuff. This is awesome video!

I put a 272 popup piston in a 480cd and it ran really good! Sold it for $700!

Brilliant, just did a 272 piston in a big bore 372 on my channel. Looking forward to seeing how yours runs!

Zing zing!!!!! Can't wait to hear this one sing!!!

Interesting as always. Definitely lots to think about. TC Mahalo Tinman🤙🤙🤙

I would go with it and see what happens. I've seen some with those numbers that were wicked

Ur talking old school hot rodding 👍cheers

Nice video buddy❤❤

💪

Why would you cut the piston? Stack base gaskets. 3 base gaskets your at about .021 squish. Then check your timing. I ended up with 80,102.5,.022 putting a 268 popup in the stock bore with 3 base gaskets. Cuts fantastic. Did some work on the lower transfers and modded the muffler. You'll probably have too much intake timing if you shave the piston.

Some JB Weld in the intake port can bring that intake timing back.

I have tig welded a little material on the bottom of the intake skirt and trued it up in the lathe if you don't want to use epoxy in the intake port. May be an option for you here.

Mint👌💪

A heavy duty belt sander or disc sander with a good guide surface would work to sand the piston crown down with patience

I’d really like to see how that piston works with the stock cylinder. I bet it does surprisingly well but may have idle issues like you where saying.

I like where your looking to go with this build. Just curious, does the windowed piston hurt case compression? I understand a lighter piston is a benefit, just not sold on the windowed piston. I would like your opinion!

The pop up piston from Hyway should have had opening in it at wrist pin. They must make different options the kit I have used had openings. I only used one ring. Are you going to match your cases to cylinder?

I had the chrome bubble up on my Hiway nikisil 660 cylinder. It had great numbers to. Now I'm not sure about the Hiway cylinders.

Would maybe the intake timing get in the desired numbers with a thicker base gasket?

what about lifting up the cylinder and matchning the ports to fit with another piston.making thin plate under the cylinder.

@tinmanssaws

Жыл бұрын

That is an option for sure.

@mikahakkinen5651

Жыл бұрын

yes,that way doesnt need to shave the piston head too mutch.

Love it just do it already 😅😅

The 272 Hyway and meteor pistons I used in 372xps should be about .040 taller than stock. Maybe they changed the pistons.

Question of the day. Does the crankcase benifit to be scuffed up when porting . Is it part of the runners

@tinmanssaws

Жыл бұрын

Be interesting to try that.

@coolestguyontheplanet723

Жыл бұрын

@tinmanssaws does that mean you have never done ? Or is this a secret ?

@jasonmercer9962

Жыл бұрын

Great Video as always, I’ve heard Hyway has a single ring 371/372 piston.

Go lite go lite but keep the piston short raised top one ring and turn it in. To gorilla put a 36 “ bar put in on 3 to 4 ft white oak Stump or dad oak land let it rip👍👍👍👍👍😎

I am an OEM guy but I just bought my first highway top end for an MS 440 it was a 💩

@cammatney6388

Жыл бұрын

No good??

@nateolmsted899

Жыл бұрын

@@cammatney6388 yeah it’s no good. The plating does not go all the way to the top of the cylinder so I cannot cut the base.

@alotl1kevegas860

Жыл бұрын

Glad I seen this. Was going to get a hyway kit for my 461, but I'll stick with oem.

Comment from me today

Mesin husqvarna tipe berapa sajah yang parts nya bisa di pakai misalnya 365 bisa pakai sylinder 372 atau 61 268 bisa pakai 272.yang lainya tipe berapa yang sama bos?

Hey Tinman can I use a wrist pin that is one millimeter shorter than stock

@tinmanssaws

Жыл бұрын

Sure as long as you think the Poston will hold it securely with 1mm less bearing surface.

@Bg1111ghk

Жыл бұрын

@Tinman's saws Thanks Tinman!

As a race 2 stroke engine builder, I can tell you anything beyond .020" squish in a medium RPM ( below 15000 ) saw, and you are giving up torque from compression loss. When you cut the entire piston top, you gave up compression again. Cutting only on the squish band area would had given you the clearance, and created a pop-up into the chamber. The sharp edge could have been rolled over to enhance flow into and out of, the cylinder. The increase of torque from compression , will help the low end response with 160 degree intake.

@davidcarpenter8741

Жыл бұрын

I'd like to put a 60 mm piston in my Husqvarna 235. Will this fit? (Just checking to see if you read every comment)

can you cut the squish band

@tinmanssaws

Жыл бұрын

Can do anything you want, that's the fun of it.

@Chainmale

Жыл бұрын

I was thinking that, But cutting squish and lowering cylinder would bring the intake even further down

@Chainmale

Жыл бұрын

That's compared to leaving the squish band and leaving or raising cylinder.... Am I on the right track lol 🤔

No, I don’t have a laeth