Clint's Hybrid

[Deets066]

If it needs more capacity then it's easy to get.

I've not ground on my hybrid yet so I'm waiting on deets to find the power. Lol

We'll get them hybrids tuned up just like we did with the 66 J

 

[jmssaws]

We'll get them hybrids tuned up just like we did with the 66 J

Get enough of the right guys together things can happen.

 

[Deets066]

Get enough of the right guys together things can happen.

Just reported your post, damn report button is to close to the like button

 

[jmssaws]

Now I'm reporting your post! Lol

 

[riverrat2]

I might give mine a touch more intake, what would you think about grinding a small half a circle in the bottom of the Piston skirt

its been done before. more so in the old school era of woods porting.

I've gone back in and removed a millimeter on the Intake skirt on one of my first hybrids to give it a bit more intake duration/timing and it was a good move as it pulls a 28 w/full comp in oak/hickory hardwood with authority, never tried the half circle but have heard of it being done before with good results

 

[MustangMike]

OK, since we were talking about dumb things we have done, i can contribute!

One of my dumb friends built a pipe bomb and blew up a phone booth, then walked directly home ... in the snow! Yea, he got busted!

My dumb idea was putting chlorine tablets from the pool in one of our smoke bombs. Hissed like a jet engine, and shot bright orange flame 20' into the air. Also burned a hole in the street. We decided not to do that any more!

Oh, and I enjoy all the porting #s being discussed, I'm learning, I'm learning! But I see very little about the high & width of ports being discussed, and the impact they have on performance (other than large upper transfers sometimes hurting performance). Is more width just generally desirable, and height just not as important as the timing?

 

[cgraham1]

The hybrid idea sounds interesting enough, but from what I am hearing... They end up being not real good at anything and lose a bit of what made them special as the two separate saws they were.

GFY.

 

[MustangMike]

Also, don't know if Al mentioned it, but we were real surprised to see how much wider the Meteor piston skirts (for the MS460) were than the OEM Stihl. You would not want to put an OEM piston in a saw that had been ported for a Meteor.

So, if you want wider ports in your hybrid, I guess the Meteor piston is the way to go.

 

[cgraham1]

Also, don't know if Al mentioned it, but we were real surprised to see how much wider the Meteor piston skirts (for the MS460) were than the OEM Stihl. You would not want to put an OEM piston in a saw that had been ported for a Meteor.

So, if you want wider ports in your hybrid, I guess the Meteor piston is the way to go.

Chit, now you tell me. I used OEM.

 

[Miller Mod Saws]

Good thread Randy!

 

[mdavlee]

OK, since we were talking about dumb things we have done, i can contribute!

One of my dumb friends built a pipe bomb and blew up a phone booth, then walked directly home ... in the snow! Yea, he got busted!

My dumb idea was putting chlorine tablets from the pool in one of our smoke bombs. Hissed like a jet engine, and shot bright orange flame 20' into the air. Also burned a hole in the street. We decided not to do that any more!

Oh, and I enjoy all the porting #s being discussed, I'm learning, I'm learning! But I see very little about the high & width of ports being discussed, and the impact they have on performance (other than large upper transfers sometimes hurting performance). Is more width just generally desirable, and height just not as important as the timing?

The height is the numbers. You measure the top of the port on all of them besides the intake. You can have real tall ports. The 7900 I have here is 1/4 taller than it was stock. On the stihls the upper transfers can get real tall on a few of them. I don't widen them any.

 

[Deets066]

I raise the roof of the intake a little, especially if I dropped the jug a long way. In my 066 I believe you don't ever lose sight of the piston skirt at TDC

 

[Mastermind]

I tend to go from one extreme to the other. Smaller ports for velocity, or huge ones for volume. A meet in the middle compromise is what I am aiming for right now.

 

[Deets066]

Also, don't know if Al mentioned it, but we were real surprised to see how much wider the Meteor piston skirts (for the MS460) were than the OEM Stihl. You would not want to put an OEM piston in a saw that had been ported for a Meteor.

So, if you want wider ports in your hybrid, I guess the Meteor piston is the way to go.

Wider ports are just a fad Mike

 

[Mastermind]

Wider ports are just a fad Mike

Repped

 

[Brush Ape]

what would you think about grinding a small half a circle in the bottom of the Piston skirt

I had a brown half circle in the bottom of piston pants.

 

[Mastermind]

No pics needed.

 

[Definitive Dave]

I had a brown half circle in the bottom of piston pants.

I am guessing pretty short duration?
What do you expect in terms of long term durability with this mod?
Do you think your choice in oil mix and ratio played a part?
Just trying to learn.
Dave

 

[Mastermind]

So......do we need a video?

 

[Deets066]

I am guessing pretty short duration?
What do you expect in terms of long term durability with this mod?
Do you think your choice in oil mix and ratio played a part?
Just trying to learn.
Dave

You are far too interested in what's goin on in Brush Apes pants my friend.