sleeve/bore

[BLKWDW]

i always read of people sleeveing and something with bore what does it all mean?
for example: H 22 87mm Max Bore 89 mm ! sorry fo r the amature question but i need to know..thx

 

[92civicb18b1]

i dont know how to explain it but ill try

let say u have a b18 block, the stock bore is 81 mm, the piston that fits inside is 81 mm, basically the bore is the cylinders diameter. Max bore is the most you can take off the inside edges of the cylinder wall to make a larger diameter.
Larger cylinder= more power and torque

 

[JDMilan]

larger bore allows larger pistons thus creating more displacement which will give more tq and hp.

 

[BLKWDW]

thx