Forgive me for my ignorance, but i am mainly a F/I guy. I know the largest bore you can go on stock sleeves with boost is 82mm and that is pushing it. I was told that 84mm overbore can be done on a N/A sleeve. I am about to build a gsr block and need to order the pistons, its between 81.5mm and 84mm. If anyone has the answer, someone in here will. Thanks in advance.



[Modified by boosted hybrid, 12:47 AM 11/19/2002]

 

I wouldn`t go 84mm on stock GSR sleeves. Get it sleeved.

Ryan

 

82 is max for stock sleeves NA.

 

but 84/84.5 on a N/A GSR block is ok as long as its sleeved right? hehe...how reliable will that be?

 

if you get it sleved to 84 it will be very reliable

 

what about 84.5? still cool? i think thats what IB is doing mine to.there a noticeable difference between 84 and 84.5 in terms of power or reliability or anything? any issues with it at 84.5?

 

I got 84mm on stock sleeves.

 

with sleeves you can go up to 86mm N/A and be ok
with sleeves you can go up to 84mm F/I and be ok
Go with sleeves and 81mm just add boost to catch up to the 86mm guys hahaha
with no sleeves .20 over is it, I mean it if you want to keep your motor.

Im currently running AEBS sleeves with 81.5mm Ross pistons incase I pop it Im gonna go bigger bore (leave room for misfortune)

 

But you have a b20 block. Nice try.

 

donde esta Reid?

 

En el bano con un verga en la boca.

 

85mm bore with proper head gasket (cometic) and no more than 8.5:1 compression w/ 18psi boost daily driver... have sleeve support installed where GE does it ... and clamp with arp studs and moly not oil.
thats the closest I've come to push a customer's car ... she's still driving err kickin *** on the streets after 18 months. Oh yeah her car is faster than her boyfriend's pos FD ...

Greg


[Modified by CHEETAH, 6:44 PM 11/19/2002]

 

LOL

 

LOL

 

wow.. you can only sleeve a block to 84mm if you go with boost? Dammit! I guess I better chunk my 84.mm GE sleeved block and 84.5mm Wiseco pistons in the garbage