I am keeping my B16a3 with stock sleeves and an 81.5mm bore, but I cant pick a piston...I just want the best Piston for 93 octane, but still keep it very streetable...

Any help?

 

somwhere in the low 11's would be my choice...some will say you can run as high as 12 but my friends is around 11.3-11.5 and so far his runs great on 93...

 

how good is your tuner? lol but i would say low 12's.

 

gonna have it tuned by Jeff Evans when its done...I am just trying to run a mid 12 on slicks...all-motor

 

Edit: sorry double hit the post button

 

You should be talking to your tuner about that then. But like i said, i think you can run low 12's c/r on pump. Do you have the rest of the set-up complete?

 

ya, I have a skunk2 valvetrain, eagle rods, skunk2 stage 2 cams...

still deciding on headers and pistons...

 

thanks, ill just go with a 11.5:1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quik sol &raquo;</TD></TR><TR><TD CLASS="quote">thanks, ill just go with a 11.5:1</TD></TR></TABLE>

If you want to run that ratio I would suggest ctr pistons. They will put you almost at that and they are cheap. Thats what I ran in my old b16a2.

edit: I was also able to run it on 91 octane untuned. In fact I traded the car in and left the pistons in the engine. I never told the delearship and it ran fine and passed smog. I just hope the new owner doesn't try to run 87 because the engine will not last long.

 

is this motor going into a small gutted car like a hatch or a crx?? just asking because running mid 12's with slicks in a 81.5mm bore b16a with c/r only in
the 11's running on 93 octane seems like a very hard task to accomplish. i'm not saying that a b16a powered car cant run mid 12's, but i dont think 81.5mm bore
and mid 11 comp ratio will get the job done. if i were you i would go with a bigger motor like a gsr or ls/vtec, or stroke the b16 and have it professionally built.

 

Actually going into a del sol