I am planning on buying an eg hatch for a B20 turbo build. I know turbos but have a few honda specific questions. 1. Do the manifolds interchange between non vtec B18's and B20's? 2. What application will cross reference for the downpipe? Will one for an integra fit? 3. Are there any issues that might arise with this setup that I might not know about? thanks in advance for any help you can give me!

 

1)yes
2)yes

 

all b-series are the same on the exhaust side, so yes the manifold will fit. now, the b20 has a slightly taller deck height than the integra motor, so you could just buy a downpipe for an integra and lengthen it a little. also, browsing through the forums a little might help you out some more

 

but im not sure if the longer deck height, really makes a difff.
cuz i used to run a d-c 4-1 gsr header on my b20. i dint see any diif.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">all b-series are the same on the exhaust side, so yes the manifold will fit. now, the b20 has a slightly taller deck height than the integra motor, so you could just buy a downpipe for an integra and lengthen it a little. also, browsing through the forums a little might help you out some more</TD></TR></TABLE>

The B20 has the same deck height as an LS(B18A/B18B). But as we all know B20's are **** for boost. Id rather have ANY other B series than a B20 for a turbo setup.

 

well, i stand corrected. i think the b20 is fine for low boost levels (6-10psi) but after that, no.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">well, i stand corrected. i think the b20 is fine for low boost levels (6-10psi) but after that, no.</TD></TR></TABLE>

Its fine with proper tuning. I dont really want to go by boost levels though. We need to find out where most people pop them HP wise.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtaaak y0 &raquo;</TD></TR><TR><TD CLASS="quote">
We need to find out where most people pop them HP wise. </TD></TR></TABLE>

Exactly. It's not the amount of "PSI" that cracks the sleeves. No thread bust intended

Phil

 

if i were to boost a b20 (which i almost did) i'd sleeve it anyway. if the block is out of the car, go on ahead and do it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tomslide50 &raquo;</TD></TR><TR><TD CLASS="quote">Are there any issues that might arise with this setup that I might not know about?</TD></TR></TABLE>

The design of the b20 sleeves make them worthless if you plan on boosting... find another block to build.

https://honda-tech.com/zerothread?id=1072154

 

^who runs stock b20 sleeves? lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">^who runs stock b20 sleeves? lol</TD></TR></TABLE>

Lots of people, but they will learn...

There is really no point sleeving the b20 either. All aftermarket b-series sleeves start out at 81mm anyways, so just get yourself an LS block and bore it out to whatever you want. When boring it out I would leave some room for a rebuild though, just to be safe. The b20 block will cost a little bit more to sleeve because of the funky stock sleeve desgin (different than other b-series motors).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">^who runs stock b20 sleeves? lol</TD></TR></TABLE>

Me.........

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

The design of the b20 sleeves make them worthless if you plan on boosting... find another block to build.
QUOTE]

I disagree...............


https://honda-tech.com/zerothread?id=1072154</TD></TR></TABLE>

My post from this thread................

Quote, originally posted by importboi22 »
fuel pump, injectors, HONDATA AND TUNING TUNING TUNING!!!!!!!

Totally agree!!!!!!!!!

I've been running a stock B20B/B16A VTEC with a T3/T4 turbo at 8-15 psi for the past 2 years without any problems. The redline is set at 7500 RPM which is ultra conservative (buying springs and retainers and pushing it to 8500, not fussy about the valves floating around).

How is this possible the nay-sayers ask? 255lph Walboro in-tank pump, RC 550cc injectors, Hondata S200b and two trips to the dyno (3-4 hours each). Lots-o-gas in + sensible timing + decent a/f (richer than normal) = safe high hp engine with no boom-boom.

Having said all this I am going to sleeve the block. Why? Because I'm planning on adding a fuel cell, race gas, a few other goodies for the strip and 22+ lbs of boost.

Do it right the first time. I've seen the cracked sleeves here as well and it always seems to be an overabundance of boost for the amount of fuel going in and then bang............. IMHO