I'm plannin on goin big bore this winter and i have been researching all of the kits. and i am curious why you can't bore and replate to a 105mm without a sleeve. i think i read in a post that ERBE has done this. i am assuming the sleeve makes it stronger, wether made from steel or aluminum. So what i would really like to know is what are the limits to that setup? Should i try it?

 

no one could ever get a head gasket to seal. CT racing did that mod for a short while.

 

they did get a 102mm to work.

 

i dont understand why tho. it is the same thickness head sealing surface as the steel sleeve 720.

 

maybe you can get it to work, lots couldn't. seems the sleeve took some of the water jacket space if I recall right, not much but some

 

Mine sealed fine with a Cometic Gasket. I only ran Gas no Nos

 

<div class="FTQUOTE"><begin quote>Originally posted by: ERBEDS650
Mine sealed fine with a Cometic Gasket. I only ran Gas no Nos</end quote></div>
I'm hoping!!!

 

with a 13 to 1 compression piston!!!

 

thought you were the one with the aluminum sleeve not a bore of the stock cylinder

 

damn your right!! ill shut up now, ask scooby he was running one with turbo