Mastermind Meets The MS660
- Thread starter Mastermind
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How to become intelligent, beautiful, motivated, and increase my libido all while making a fortune in real estate.
Simonizer
Addicted to ArboristSite
I have never had one.
Simonizer
Addicted to ArboristSite
Build a time-machine, don't smoke pot, stay in school, work-out, eat oysters, buy property on Vancouver Island .
Last edited:
Logger4Life
ArboristSite Operative
Anyone have some advice on a 066 BB project that I am doing ? Are the gains found about the same way as the 660 build? What I mean is the exhaust port to high on the BB cylinder also?
and here i thought you were high society. guess i was wrong
Mastermind
Work Saw Specialist
Oh hell yes.
Admitting there's a problem is the first step. :msp_thumbup:
Simonizer
Addicted to ArboristSite
lolOh hell yes.
Admitting there's a problem is the first step. :msp_thumbup:
Oh hell yes.
My 4yo picked a mess of blueberries today and the cobbler is in the oven. What time should we expect you?
parrisw
Tree Freak
I'm a mechanic and I take great offense to that. Since these days you actually have to be pretty smart if you want to keep up with the automotive business. Good day!!
parrisw
Tree Freak
So anyone else have any thought about squish cutting like I was thinking?
Tzed250
Addicted to ArboristSite
When I made the post about the piston crown it was not meant to disparage anyone. Anyone who thinks they are going to hold information at bay in the age of the world wide web is delusional. The info can be found. Some will share it freely, and some will impede it.
BTW, since I live in West Virginia, I'll be the judge of who is a hillbilly and who isn't.
BTW, since I live in West Virginia, I'll be the judge of who is a hillbilly and who isn't.
Simonizer
Addicted to ArboristSite
I am a journeyman mechanic too Will. My dad told me to get a trade if I wanted to be a good engineer. I did both. Burned myself, cut myself, paid my dues. I have been pulling wrenches for 25 years. Please don't take offense.
True, the more surface area the better. But from what I've seen, I can't tell much difference between flat or tapered. But ya never know till u try. Give her a whirl.
To my simple mind, as long as your not getting crazy carbon spots on the crown, and are showing good flow patterns from the transfers to the chamber, then your good to go. I've pretty much given up on using popups, cause every one I've done has had bad carbon problems, and terrible flow patterns.
Where was the carbon buildup? Do you think that the dome shaped impeded the flame front causing incomplete combustion?
I have been working on 4-stroke engines forever, mostly motorcycles. But, recently have really gotten into 2-stroke theory. They seem simple at first, due to the lack of moving parts compared to a 4-stroke. However, the more I learn, the more I realize I don't know.
parrisw
Tree Freak
Ok, Simon. Duly noted.
wigglesworth
Booned
I'm with ya. The more I think I know, the more I realize I don't know squat.
I've tried several different shapes and sizes of popups, also done welded(which is the only way I will do one now) and even with the best finish, no sharp angles, and mirror polished, they will still leave carbon on the edges, and show signs of flow disruption from the transfers. It's just the nature of the beast with a popup.
I'm definitely not saying that popups are bad, as some of the strongest saws out there have em. I just "personally" think that cutting the chamber is the better way, when it's possible.
Here is the last one I did. It's a welded popup for a 346NE.
And here it is after a couple tanks of Klotz super techniplate. Nastiest oil I've ever used. This was at 40:1 with non ethanol fuel too. Ignore the massive amounts of carbon, as its not normally that bad, but look at the flow pattern from the transfers.
Mastermind
Work Saw Specialist
Where was the carbon buildup? Do you think that the dome shaped impeded the flame front causing incomplete combustion?
I have been working on 4-stroke engines forever, mostly motorcycles. But, recently have really gotten into 2-stroke theory. They seem simple at first, due to the lack of moving parts compared to a 4-stroke. However, the more I learn, the more I realize I don't know.[/QUOTE]
Me too......
I'm with ya. The more I think I know, the more I realize I don't know squat.
I've tried several different shapes and sizes of popups, also done welded(which is the only way I will do one now) and even with the best finish, no sharp angles, and mirror polished, they will still leave carbon on the edges, and show signs of flow disruption from the transfers. It's just the nature of the beast with a popup.
I'm definitely not saying that popups are bad, as some of the strongest saws out there have em. I just "personally" think that cutting the chamber is the better way, when it's possible.
Here is the last one I did. It's a welded popup for a 346NE.
And here it is after a couple tanks of Klotz super techniplate. Nastiest oil I've ever used. This was at 40:1 with non ethanol fuel too. Ignore the massive amounts of carbon, as its not normally that bad, but look at the flow pattern from the transfers.
Dang J that Klotz is some nasty stuff...
Trx250r180
Saw polisher
i hear rhubarb works to check your squish if you dont have any solder around ...........
I don't see the problem. I see nice even swirls coming from each of the four transfer ports.
