duyfash0

is there much difference between the 2 motors?? Only thing i know is theres a 20 hp difference with the b20z...

Libertariat

B20B
NON-VTEC
Found in: Honda CR-V, Honda Orthia
Displacement: 1973
Power: 126hp @ 5500rpm
Torque: 133 ft @ 4200 rpm
Compression: 8.8:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6300 rpm red line

B20Z
NON-VTEC
Found in: 1999-2001 Honda CR-V
Displacement: 1973
Power: 146 hp @ 5500 rpm
Torque: 133@ 4500 rpm
Compression: 9.6:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6700 rpm

Looks like compression wins again.

ABCVTEC

Also, JDM B20B = USDM B20Z.

doood

iTrader: (1)

some of the jdm b20's had the better flowing p8r head

drewbie*

Search there is a ton of info on this subject.

NOFX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ABCVTEC &raquo;</TD></TR><TR><TD CLASS="quote">Also, JDM B20B = USDM B20Z.</TD></TR></TABLE>
Not 100% true. In Japan, the B20B was stamped as a B20B while the B20Z type counterpart was also stamped B20B.

http://hybrid.honda-perf.org/tech/b20/b20tech.html

Cream

which b20's come vtec? are those sleeved so they wont crack?

NOFX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cream &raquo;</TD></TR><TR><TD CLASS="quote">which b20's come vtec? are those sleeved so they wont crack?</TD></TR></TABLE>
A B20VTEC is a B20 block with a B-series VTEC head. It's not a production engine.

The Si

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cream &raquo;</TD></TR><TR><TD CLASS="quote">which b20's come vtec? are those sleeved so they wont crack?</TD></TR></TABLE> LoL

BAnnedx3

know any specs with vtec
??

Libertariat

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BAnnedx3 &raquo;</TD></TR><TR><TD CLASS="quote">know any specs with vtec
??</TD></TR></TABLE>

No b20's came with a production vtec.

daluv

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">

No b20's came with a production vtec.</TD></TR></TABLE>

X2

b20beast978

X3

gd99em1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BAnnedx3 &raquo;</TD></TR><TR><TD CLASS="quote">know any specs with vtec
??</TD></TR></TABLE>

B20B
NON-VTEC
Found in: Honda CR-V, Honda Orthia
Displacement: 1973
Power: 126hp @ 5500rpm
Torque: 133 ft @ 4200 rpm
Compression: 8.8:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6300 rpm red line
B20Z
NON-VTEC
Found in: 1999-2001 Honda CR-V
Displacement: 1973
Power: 146 hp @ 5500 rpm
Torque: 133@ 4500 rpm
Compression: 9.6:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6700 rpm

pick one and add VTEC..
theres your specs

NOFX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gd99em1 &raquo;</TD></TR><TR><TD CLASS="quote">B20B
NON-VTEC
Found in: Honda CR-V, Honda Orthia
Displacement: 1973
Power: 126hp @ 5500rpm
Torque: 133 ft @ 4200 rpm
Compression: 8.8:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6300 rpm red line
B20Z
NON-VTEC
Found in: 1999-2001 Honda CR-V
Displacement: 1973
Power: 146 hp @ 5500 rpm
Torque: 133@ 4500 rpm
Compression: 9.6:1
Bore: 84 mm
Stroke: 89 mm
Redline: 6700 rpm

pick one and add VTEC..
theres your specs </TD></TR></TABLE>

BAnnedx3

i know its not a manufactured engine i just wanted to know if anyoneone had some average spec configured to see what b20b vtec and b20z vtec were like.

Libertariat

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BAnnedx3 &raquo;</TD></TR><TR><TD CLASS="quote">i know its not a manufactured engine i just wanted to know if anyoneone had some average spec configured to see what b20b vtec and b20z vtec were like. </TD></TR></TABLE>

About the same, **** for cylinder wall castings, weak rods, and a valvetrain that hates to rev.

Once you've sleeved, built, added a vtec head, and dumped money into either motor the difference will be miniscule.

951BRO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">About the same, **** for cylinder wall castings, weak rods, and a valvetrain that hates to rev.

Once you've sleeved, built, added a vtec head, and dumped money into either motor the difference will be miniscule.</TD></TR></TABLE>

yo're switching valve trains so it doesnt matter



the b20 vtecs are actually pretty quick, faster than a stock b20 and faster than that stock car you have

Libertariat

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 951BRO &raquo;</TD></TR><TR><TD CLASS="quote">
yo're switching valve trains so it doesnt matter



the b20 vtecs are actually pretty quick, faster than a stock b20 and faster than that stock car you have </TD></TR></TABLE>

What you just said made no sense in accordance with what I said. Swapping the valvetrain still leaves you with weak rods, and crap casting for sleeves. YES, b20vtecs are impressive once they've been overhauled. If I wasn't going h2b I'd consider the b20.

I'm a college kid with tuition, and books. So what's more important? Having a running car? Or a project car? Get the expletive off my nuts about my stock car.

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 951BRO &raquo;</TD></TR><TR><TD CLASS="quote">

yo're switching valve trains so it doesnt matter



the b20 vtecs are actually pretty quick, faster than a stock b20 and faster than that stock car you have </TD></TR></TABLE>

Actually it does matter.

I don't know much about the B20 valve trains but you're switching them out so it doesn't matter - yeah - peachy.

Though the other part is that the B20 rods suck ***** and the B20's hate to be revved (it's a truck engine...not a ricer civic engine). Think of the B20 as the EXACT opposite of the B16 - a motor that NEEDS to be running high ends to make power. B20's are meant for auto trans's and are make all their power low.

So idiots take the motors out, put them in their civics w/ a GSR trans, slap a B16 head on it, take it up to 8000 RPM ("because the valvetrain can handle it") and wonder why they have the pleasant decorations of piston rods sticking out of the side of the block.

Libertariat

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate &raquo;</TD></TR><TR><TD CLASS="quote">
So idiots take the motors out, put them in their civics w/ a GSR trans, slap a B16 head on it, take it up to 8000 RPM ("because the valvetrain can handle it") and wonder why they have the pleasant decorations of piston rods sticking out of the side of the block.</TD></TR></TABLE>

"But but, it's just like an LS Vtec!!!!"



ROFL

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">

"But but, it's just like an LS Vtec!!!!"



ROFL</TD></TR></TABLE>

Yeah, I've heard that bullshit one too many times .

The simple problem is pple think now that they got VTEC it like - shields the block or something, and then they take it to whatever the B16 redline is and BOOM...and I don't feel bad.