Nextelbuddy

well i got a hold of a b18c1 bare block. it has JE pistons that have i beleive a 12:1 compression and also has upgraded rods as well. besides that the block is bare the crank was taken out due to a spun bearing so there is no crank as well. i have a b16 in my car right now, and i need advice on what to do with this block i would like to swap my b16 head on it considering my type r cams ar in teh b16 head now. i was wondering if i did this with these JE pistons (they are in perfect condition) what would the compression be like with 12:1 pisonts a b18c1 block and b16 head? will my stock valves and springs be ok with these pistons?

slowdx

I believe if the compression was 12:1 in a b18c1 witha c1 head then with a b16 it will lower the compression. Not sure how much but im pretty sure it will.

owen_the_soyboy

a b16 head on a gsr block will lower compression a little bit.

Nextelbuddy

but i thought a b16 head on a gsr block was a "poor mans type r" and type r motors have higher compression than gsr motors. am i wrong?


does anyone here have the link to the compression calculator on CSPEED i think?

tonyxcom

if you already thought something, then why did you ask the question to begin with.

If you put a ITR/B16 head on a GSR it will LOWER the compression.
If you put a GSR head on an ITR/B16 block it will RAISE the compression.

What do you learn from this? The GSR's combustion chamber is smaller then the ITR/B16.

Nextelbuddy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tonyXcom &raquo;</TD></TR><TR><TD CLASS="quote">if you already thought something, then why did you ask the question to begin with.

If you put a ITR/B16 head on a GSR it will LOWER the compression.
If you put a GSR head on an ITR/B16 block it will RAISE the compression.

What do you learn from this? The GSR's combustion chamber is smaller then the ITR/B16.</TD></TR></TABLE>

gee tony i asked because i was unsure of my thought. thanx for your response though. so how bout that link to the compression calculator on cspeed garage?

B18c1CivicTurboed

Its http://www.CYA SLOW POKE.com

Nextelbuddy

haha funny. theres gotta be someone here that has a link to that compressions calculator for b series motors... anyone?

Trey

http://www.c-speedracing.com/h...c.php

Nextelbuddy

thanx bro

Nextelbuddy

well im tryin to figure out how to use this calculator the right way. i will be using a b16a head
b18c1 block
je pistons 12:1 (6.7 dome height)
oem head gasket
piston to deck height ???? i tried both

and my compression came out to only 11.594320467354728 dos that sound right?

oh yea i tried doing the reverse with having a b16 block and b18c1 head like MR. TONY said and that lowered the compression not make it higher.... so i guess i was right having a b16 head on a gsr block gives u higher compression.

anyways the compression i listed above does that sound ok to u guys? will i have to upgrade my valves and springs or can i leave them alone?

tonyxcom

LOL, try it again buddy.

GSR Block/p72 Pistons/OEM HG/OEM B18 Deck height with GSR Head = 10.00 to 1
GSR Blcok/p72 Pistons/OEM HG/OEM B18 Deck height with ITR Head = 9.80 to 1

So Mr Tony and just about everyone else in this thread was right all along.

B_CRUZ!

lol...

Nextelbuddy

sorry i guess i forgot to switch the deck height from b16 to b18 my bad

slowdx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tonyXcom &raquo;</TD></TR><TR><TD CLASS="quote">LOL, try it again buddy.

GSR Block/p72 Pistons/OEM HG/OEM B18 Deck height with GSR Head = 10.00 to 1
GSR Blcok/p72 Pistons/OEM HG/OEM B18 Deck height with ITR Head = 9.80 to 1

So Mr Tony and just about everyone else in this thread was right all along.</TD></TR></TABLE>
I was right YEY!

Nextelbuddy

since i have pistons and rods, all i need is a crank now and i found a gsr crank and gsr pistons and rods for 100 bux froma 95 gsr. i only need the crank do u guys think this is a good deal?