Popup vs Flat Top?

[Weesa20]

I think red is the winner...

 

[angelo c]

Hello Brush Ape.

You can "name that tune" in 13 posts ?(actually name that Ape)


Damn Randy you are good...

 

[Chris-PA]

Back in the day water injection was all the rage.

I built one for my '66 Mustang back in High School 'cause I couldn't afford premium gas!

 

[Deets066]

Even if you have a cut squish band does not mean a piston is a direct replacement. The Oem piston I bought for the 066 was .017 lower than original OEM piston.
Just sayin.
Now, I want to see a saw that has a cut squish and a pop up! Any takers

 

[angelo c]

I built one for my '66 Mustang back in High School 'cause I couldn't afford premium gas!

What would you give to have that ride back ?

 

[fordf150]

wonder how long till this thread disappears

 

[old-cat]

Now, I want to see a saw that has a cut squish and a pop up! Any takers

In my view that would work GREAT. IF you only cut enough off the squish band to make it square.

 

[Duane(Pa)]

Best poast in this whole damn thread

I was going to go ala mode but youn's phukers don't deserve it.......

 

[DSS]

I was going to go ala mode but youn's phukers don't deserve it.......

Great. The ice cream Nazi is here.

 

[Deets066]

In my view that would work GREAT. IF you only cut enough off the squish band to make it square.

.020 off the squish, .020 pop up, .040 off the base if squish is already good. It could be a snellermonkied saw

 

[Outlaw5.0]

Now, I want to see a saw that has a cut squish and a pop up! Any takers

First gen 460 big bore. I had .025 cut from the chamber and .030 on the piston with .030 squish at the extreme edge of free porting. The darn thing still only had 185 psi compression!. If I could find another first gen big bore piston I would cut the chamber another .010-.020 and no pop up. It ran decent though, not stellar. I just enjoy trying different things and finding how well it works.

 

[old-cat]

.020 off the squish, .020 pop up, .040 off the base if squish is already good. It could be a snellermonkied saw

The ONLY reason I could see any sense in doing that is so you wouldn't have to upset the port timing as much. So you would only take .005 to .010" max off the squish band.
But that way of upping the compression is more work/expense.

 

[jsmith40004]

I vote for a true dome and a hemi chamber with center plug.

I agree with Randy, the flat roof has to be less turbulence.

Question is-does it matter in a chainsaw? Probably not.

James

 

[Adirondackstihl]

Oh yeah it does!! I'll only feed square hay bales they are better for your cows. Round hay sucks.

They deserve a square meal

 

[Deets066]

The ONLY reason I could see any sense in doing that is so you wouldn't have to upset the port timing as much. So you would only take .005 to .010" max off the squish band.
But that way of upping the compression is more work/expense.

I would do it just in spiet of this pi$$ing match and I bet it would run damn fine.

 

[windthrown]

All this talk about food on a suck ass thread is making me hungry. Who is up for take-out tonight?

 

[wigglesworth]

I'd take yours any day.

Agreed. Older the better

Brad, Wiggs has a point here ............ you could offer both (pop-up and squish band cut) to customers, allowing them to decide

That's a great idea!

The customer is always right...

 

[old-cat]

I would do it just in spiet of this pi$$ing match and I bet it would run damn fine.

I sincerely wish someone would build a saw both ways and put them on Chad's dyno. Maybe the cat and dog would go lay down!

 

[Chris-PA]

What would you give to have that ride back ?

Depends on if I would have to take the rust with it!

 

[Deets066]

I sincerely wish someone would build a saw both ways and put them on Chad's dyno. Maybe the cat and dog would go lay down!

I seriously think that would make things worse, I personally think they should stick to what was said when chad first started with the dyno. That they were not going to compare one saw builder to another.