Would it work for a near 9:1 compression ratio? Would be used for a low boost (lower than 10psi)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike@TSR &raquo;</TD></TR><TR><TD CLASS="quote">Would it work for a near 9:1 compression ratio? Would be used for a low boost (lower than 10psi)</TD></TR></TABLE>
if you are running less than 10 psi, just keep the stock b16a slugs and live a 10.2:1
and have more fun

 

ya you could run more boost with the ls pistons

 

unless you have custom rods made it wouldnt work... the ls has an 89mm stroke, the b16 doesnt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">unless you have custom rods made it wouldnt work... the ls has an 89mm stroke, the b16 doesnt</TD></TR></TABLE>

B16 has a different rod length and deck height to compensate. All B-series pistons are interchangeable, except for the B20 pistons, but if you have another motor sleeved to 84mm you could run B20 pistons. Don't know why you'd do that, but you could.

 

ya i had b18b pistons in my b17a worked good.

 

hmm. i just dont personally get why you would goto all of the trouble to pull a motor apart and replaec the parts with stock ones. Just upgrade to forged parts while you are at it.

I just got my motor done like 10 minutes ago and i couldnt imagine going through the PITA to replace stock parts

 

Well, lets see. Stock ls pistons you could get for what? $50? and after market arias pistons, maybe 350, if you are lucky.

 

and which ones will last longer nder high boost/rev/abuse situations...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike@TSR &raquo;</TD></TR><TR><TD CLASS="quote">Would it work for a near 9:1 compression ratio? Would be used for a low boost (lower than 10psi)</TD></TR></TABLE>

hmmm...<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">and which ones will last longer nder high boost/rev/abuse situations...</TD></TR></TABLE>

That's interesting...yes.

 

lol. i didnt even think about that one.

true, for low boost setups the lower compression ratio is a good thing and even i have some laying around. I guess for a budget low power build up they would be fine

 

i woudlnt bother. i'd keep the b16 compressoin ratio. plenty of people have ran stock compression and still made power and lasted.


when it comes down to it. its about the tune. and how you drive you car.

i personally beat my car everywhere i go. needless to say nothing lasts long for me.

 

thanks for all the input guys. I was wondering this because i have a few empty b16 shortblocks laying around with no pistons or rods in them and a junkass turbo kit i can piece together.

One other question tho. Would the small end of the rod be too narrow if i did decide to do this? or would it even matter?

 

i dont see why people replace with stock pistons either. 300 hp is 300 hp no matter what pistons u use. I say shoot for like 250-280 if your going stay stock and leave it there.

 

Compression will be less than 9:1 i believe. I ran a b16 with LS pistons..its not a bad idea. Cheap way to lower the compression and not ruin quench like a thick headgasket does.

 

good call. i didnt even think about the quench being better like that.

when you did it, did the pistons adapt to the rods ok? there wasnt too much piston/small end clearance?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike@TSR &raquo;</TD></TR><TR><TD CLASS="quote">good call. i didnt even think about the quench being better like that.

when you did it, did the pistons adapt to the rods ok? there wasnt too much piston/small end clearance?</TD></TR></TABLE>

Not sure..i had a machine shop do it...Just brough the a set of b16 pistons/rods and a set of pr4 pistons/rods and said swap the pistons rods

 

Compression will be in the 8.x range. I did this a long time ago on my B16a also. Worked out well. I was a little ****, so i enlarged the valve reliefs before i installed them. Probably not necessary though.

 

mine lspistons fit very good on my b17 rods comp was 175 in all 4 cyc.

 

im running ls pistons in my b16 right now and i run 19psi all day long. so far it has run pretty damn strong! one thing that does scare me is the valve relief's

 

ya i didn't like either