I was looking into some weisco pistons and I was wondering whats the difference between 79.5mm 82mm and 82.5 mm. Would there need to be any boreing out of the engine to make the bigger pistons fit? and are there really big power gains because of increasing the piston size. Any help in understanding this is much appreciated.
Representing the Convertible Crew since 2008
other than the size, theres no difference. and es you will need to get the block bored for the exact size pistons you put in.. otherwise they wont fit(pistons bigger than hole)...or they wont seal and the motor wont run(hole bigger than piston)
very small HP gains from bigger pistons
QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
so whats the reason behind making bigger pistons for the same engine? im guessing maybe when you rebuild the engine they bore it out a little and you need bigger pistons or am i wrong?
Representing the Convertible Crew since 2008
if the cyl walls get too scratched/damaged they need to bore it out untill its a smooth finish
QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
you will get a slight gain with the higher displacement, but the big gains are when you boost it.
2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
I see alright thanks guys
Representing the Convertible Crew since 2008
