hahah alright do u think if i mill my head .025 and use 93 octane will i be good with my stock carb? or would i have to get a bigger one?
Porting and Polish??
- Thread starter 2StrokeBlaster
- Start date
i'm telling you that statement is not accurate.. mill a bunch off a stock blaster head and run it.. it'll HURT performance at a certain point.. the more you mill the less squish clearance.. and the higher the compression. get up around 200PSI adn watch your upper RPM power fall off..
DON;T BOTHER MILLING IT!!!! just have the head rechambered.. most places only charge another $40 over the price of just a mill.. it;s WELL WORTH the extra $40
you need to remember that the stock head has to way too large of a squish clearance to begin with, so simple head milling helps to narrow that gap up. still not saying (nor never did), that a full rechamber/redesign isn't better. also, this kid ain't going to be getting a head setup, that's going to give him anywhere near 200psi. a setup to give him approx 150psi would be more than enough.
since no one wants to read this i guess i will post it here
"Question: How Much do I mill my head?
Answer:
Base UCCR 9.84:1 = 135 psi = 22.06 cc's
-.010" off = 10.20:1 = 139 psi = 21.20 cc's
-.020" off = 10.58:1 = 144 psi = 20.35 cc's
-.030" off = 11:10:1 = 150 psi = 19.49 cc's
-.040" off = 11.47:1 = 156 psi = 18.65 cc's
-.050" off = 11.98:1 = 162 psi = 17.77 cc's"
according to the poster of this thread, he says you can safely mill 35 thousandths off without having to worry about the need for race gas. so go the highest you can depending on your accessibilities i guess you could say. if you want to spend and can spend money on race gas then mill away. but if not stick with .035
"Question: How Much do I mill my head?
Answer:
Base UCCR 9.84:1 = 135 psi = 22.06 cc's
-.010" off = 10.20:1 = 139 psi = 21.20 cc's
-.020" off = 10.58:1 = 144 psi = 20.35 cc's
-.030" off = 11:10:1 = 150 psi = 19.49 cc's
-.040" off = 11.47:1 = 156 psi = 18.65 cc's
-.050" off = 11.98:1 = 162 psi = 17.77 cc's"
according to the poster of this thread, he says you can safely mill 35 thousandths off without having to worry about the need for race gas. so go the highest you can depending on your accessibilities i guess you could say. if you want to spend and can spend money on race gas then mill away. but if not stick with .035
thats absolutly f*cking wonderful... what i'm saying is that not teh best setup.. and for a litel extra $$ you can have the combustion chamber cut CORRECTLY!!!! taking squish clearnace out is good to a point.. i saw somoen say they have .125" clearance.. so yeah pulling soem of that out will help ya.. but if youir going to pull teh damn head off andf ship it to somebody to have it milled why not spend and extra $40 and have the combustion chambers reshaped... your going to get more power on less octane with less timing advance.. this is teh last tiem i'm saying anyhing about it. obvisouly people think they know everythign and dont listen when someone tries to give them an honest helping hand..
you are an angry individual, calm down man, its a man to man conversation and apparently you cant have without without bitching.
im not trying to argue with you but im going by what i heard, and if im wrong, or mislead, i will gladly accept your method. but you dont have to be a dick about it
i think what 370 is trying to tell you is,the blaster cylinder head already sucks to begin with,just raising the compression is not going to do much if anything for you,the squish clearance and squish band are bad to start and they will be bad after you "mill" the head.
but when it is worded like ^^^^ a good explanation is given as to why head work is better than milling, people will understand WHY milling is not the best option for a stock blaster head. however, 370 should chill as some people are going to do what they want- you can lead a horse to water!
also understandable. im not familiar with 2 strokes, i had a goped and now this blaster..only 2 stroke motors ive dealt with.. i know in the instance of a car, the rule of compression i stated is accurite.
who's mad? i'm not mad.. nor was i when i made that post.. it is frustrating to try and help someone and then be told your wrong.. not everything you see in the internet is "truth".. i fell into the same BS when i was younger and didnt; know any better.. my old blaster had a "milled" head on it too.
370 is saying that you would be better off working on the shape of the combustion chamber first as it is the real problem with the blaster head. i am sure he would tell you that there is not a problem with milling the head to boost the compression if the combustion chamber has already been or is going to be addressed during the process. he is saying that your money will be better spent addressing the real issue which is the combustion chamber design as it will provide a more powerful and better running engine than just milling can produce. besides if i remember correctly some builders weld up additional metal in the combustion chamber so that they can change both the compression ratio and the chamber design.
