will i notice the difference
- Thread starter 03blasteryfs03
- Start date
i would go .030 that is still safe
well i want to be able to beat a 400ex i have a p&p jeted rite 14t gear no lid pipe and can reeds and so on but if i shave it .30 could i get away with runnig 89-92 octane
lmao...but ya i think you should notice the head being shaved...Pm Flotek or Kenedy they build these bad boys..
ya thats what i im thinkin and idont need the pros wen my dad does the milling and i do the porting
I would consult the pros on this...you want the squish clearance as close to zero as possible while avoiding piston/cylinder head interference and without raising your compression ratio. It's not as simple as just shaving the head a few thousandths. But if your dad can rechamber heads, then maybe you're set.
From Gordon Jennings regarding squish clearance...
"The clearance space between piston and cylinder head must be enough to avoid contact at high engine speeds, yet close enough to keep the mixture held there cooled during the combustion process. This vertical clearance between squish band and piston should not be greater than 0.060 inch, and it is my opinion that the minimum should be only barely enough to prevent contact - usually about 0.015 inch in small engines (with tight bearings and cylinder / rod combinations that do not grow, with heat, disproportionately) and up to about 0.045 inch in big engines."
Do some research on the net...you can check your squish clearance with solder and a micrometer. It's a good engine parameter to investigate because it can yield nice power increases. Theoretically, if you can reduce your squish clearance by 5%, then you're pushing 5% more air/fuel to the center of the combustion chamber, causing combustion of 5% more air/fuel, and raising your horsepower by 5% (subject to frictional losses).
yes its important, but milling the head wont hurt anything if its not done too much, in fact its getttin the squish closer, blasters come stock with a squish band thats too thick, and they run fine, there is room for work but its not like its gonna blow up, thats what you made it sound like, btw i did my own porting, and the blasters running real strong
and i still plan on getting the head modded, for proper squish, still more power to be had
