Im building a B16 block for mild turbo use and wanted to bore out the stock sleeves. Is 81.25mm good or can I go a little more? I wanted to do this safely without sleeving it. Im gonna also put in a block guard.

 

I've heard you shouldnt go past 82mm. 81.25 or 81.5mm will work fine

 

i was reading a post on this guy that bored his 1.6 to 83mm. i think thast like 1.9 almost 2.0?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InTeGrA B18b1 &raquo;</TD></TR><TR><TD CLASS="quote">i was reading a post on this guy that bored his 1.6 to 83mm. i think thast like 1.9 almost 2.0?</TD></TR></TABLE>
AFAIK it is barely 1.7.

Anyway, I think you should leave your STOCK sleeves alone. If you sleeve it then bore it out to 84mm, some people even go 84.5mm but I like to start at 83mm.

 

I am getting my b16 block sleeved by Benson (earl) and we are going to bore it out to 83mm

 

I'll be doing 82.5mm.

 

84 to 84.5mm sleeved will yield about 1.7L.

 

so anything under 82mm is fine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boredracer408 &raquo;</TD></TR><TR><TD CLASS="quote">I wanted to do this safely without sleeving it.</TD></TR></TABLE>

 

82mm will yeld 1634cc i think!
i am going to bore to either 81.5 or 82mm haven´t decided yet

 

81.5mm is fine with a blockguard, just make sure the machine shop installs and and makes sure everything is all straight with the blockguard on.

 

i just got mine bored out to 84mm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by queez &raquo;</TD></TR><TR><TD CLASS="quote">i just got mine bored out to 84mm</TD></TR></TABLE>

with or without sleeving it?

 

darton MID sleeves.

 

gotcha