ok so obvioulsy b16 ( pr3 ) pistons dont fit in a b20 block .. what would we have to do to make these fit ? shave the rods ? or should we just use GSR pistons ? any help is greatly appreciated

 

You'd have to make them 3 mm wider. They're 81mm bore, the B20 is 84mm.

 

thanks dude

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MolecularIntegra &raquo;</TD></TR><TR><TD CLASS="quote">You'd have to make them 3 mm wider. They're 81mm bore, the B20 is 84mm. </TD></TR></TABLE>

LOL

 

i dont think any stock b-series other than the b20 pistons will fit in a b20

 

so i have to use b20 pistons ? cant I just use some crower or weisco pistons ? i really need to figure this out .. im gonna have to buy the pistons soon and i need to know what to get ... any help is appreciated

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thesqad127 &raquo;</TD></TR><TR><TD CLASS="quote">so i have to use b20 pistons ? cant I just use some crower or weisco pistons ? i really need to figure this out .. im gonna have to buy the pistons soon and i need to know what to get ... any help is appreciated </TD></TR></TABLE>

Yea aftermarket pistons will fit in your b20...i meant that stock b-series pistons from b16/b17/b18 wont fit in your b20

 

thats what I thought .. so we just need aftermarket pistons with the same size as the b20 block .. would anyone happen to know who makes the best a/m pistons for b20 setups ? or whose had the best luck with a certin company ? i'm new to the b20 scene .. dont know too much about what setups are good .. i just know they have tons of potential

 

There is no "B20 scene". It's an LS motor with an 84mm bore. That's it. Anything that is good for an LS is good for a B20.

 

yeh the pistons too.... so confused.. should have to take test and get liscences b4 building motors...haha

 

they're all good, it's also based on personal preference. JE, IB spec Weisco, CP...

 

I plan on using ib spec weisco's in my b20 so far they look like a awsome piston and im thinking about getting them gas ported but still looking into that.

 

YEA .. ive never owned an integra LS motor either ... so i wouldnt know .. but thanks for the help and suggestions .. makes alot more sense now

 

carfull on the compression you run with the Aftermarket piston's those thin walls don't like to be pushed much

 

You got that right....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DavidR &raquo;</TD></TR><TR><TD CLASS="quote">You got that right....

</TD></TR></TABLE>
Details? I know the B20 sleeves are significantly weaker and like crack when boosted. But I haven't seen an NA set up that the B20 sleeves couldn't take.

 

we wont be going turbo ... all motor all the way .. and holy crap that wall got fucked .. what happened ? how many psi of boost were you running ?

 

please do a search ...

heres one very imformative post on CRVTECS

https://honda-tech.com/zerothread?id=174153

 

yes most peope stay into the low 11's and even then your still pushing it. ive heard about this happening alot. and most people say at 12.1 your fucked

 

I was running about 12.5:1. I had no idea it was craked, I ran it about 12k miles. It may have been a weak block from the factory, who knows. two HPDE events (high rpm for long period of time) and auto-x. What tipped me off was I changed the plugs a while back and after running it for a day, I decided to inspect them, one had a green tint on it. No one I knew had an explaination for it, so I put them back in and drove it for another day, it got darker green. I pulled the head, and that's what I found. Now the block is off to RS Machines, no more cracks for me!