patrickdc4130

go with the d15

lv6l

d16a = ex from japan. (extremely rare indeed)
d15b = feels great (in my opinion, i always want more displacement) i have both. d16a is same as the usdm d16z6. both runs great.

MY VOTE IS FOR D16A! all you people out there stop saying this is off the 88-91 obd0 crx because its not! thats the d16a6! the motor he is asking is d16a.

BlueCrxNC

Go with the JDM D15B VTEC

Yes, there are in fact TWO versions of this motor.

91-95 = Dual-Stage (Standard) VTEC
96-00 = 3-Stage VTEC (Better Fuel Econ.)

The Rod/Stroke ratio of the D15B is better than the D16 (Will allow it to spin easier/higher)

D15B VTEC Info:
http://asia.vtec.net/article/d15b/
http://asia.vtec.net/specs/

D15B Specs:
Capacity = 1493 cc
Bore X Stroke (mm) = 75.0 X 84.5
Compression Ratio = 9.6:1 (Some Report 9.3:1 like on Temple of VTEC but I don't think it's true)


Modified by BlueCrxNC at 9:08 PM 1/20/2006

x_outlaw_x

haha that guys a damn liar...there were no EG coupes in japan

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junior40er &raquo;</TD></TR><TR><TD CLASS="quote"> nope and I dont have to prove **** to anyone. I am simply giving my opinion you moron. The D15B IS better and thats the end of it. Besides I havent even seen D16A's in the shops yet so that tells me no one wants em when it comes to choosing a single cam </TD></TR></TABLE>

or there are too many asshats like you who think the d15 is better. That gets my vote. stuff the attitude back in your pants.

BlueCrxNC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by x_outlaw_x &raquo;</TD></TR><TR><TD CLASS="quote">haha that guys a damn liar...there were no EG coupes in japan</TD></TR></TABLE>

I must have missed that... who said?

mluckxxx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junior40er &raquo;</TD></TR><TR><TD CLASS="quote">get the jdm D15B its much better and works great. Its considered hondas best SOHC here is a picture of it which is not a good pic but whatr the hell.
</TD></TR></TABLE>

what kind of headers are these? would they fit a d16y7 or y8?

Contender25

A D16A6, is a 88-91 si motor, the block "incase any of you heard" is supposedly the best built D series block ever even though it's that old as long as you can find a GOOD one. The reason as to why is something to do with it being the only one that had a Iron main bearing assembly, as for myself in my old hatch i use to have the "perfect" mini me swap, y8 head swap on a d16a6 Block! and it was definetly faster then any ole d16z6.

junior40er

yeah they do. They are D-series headers from Megan Racing. Affordable and effective.

Contender25

Stainless steel right?, they are the only ones that turn like a gold/purple/or blue color overtime from heating up, which looks badass.

KrZyLiLGrL

D16

junior40er

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KrZyLiLGrL &raquo;</TD></TR><TR><TD CLASS="quote">D16</TD></TR></TABLE> please back this up with a reason. It doesnt help the guy if some one just says... "d16"

junior40er

yeah it was a polished finished new and then turned to a nice golden bronze color after a while. Not much purple but I like the bronze look much better.

jidmeghatch

get the d15b great motor from my experiences with it also not to bad on boost

eg6ajk

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by x_outlaw_x &raquo;</TD></TR><TR><TD CLASS="quote">haha that guys a damn liar...there were no EG coupes in japan</TD></TR></TABLE>

there was a JDM Civic coupe form 93 onwards, it was made in Ohio made and used a SOHC VTEC (aka d16z6) but with a D16A stamp on it. it came only in auto format!

ZC Sohc VTEC was found on the Domani sedan and 94+ DC integra.

http://www.honda.co.jp/HOT/Mod....html

Syndacate

go with the D15b if u want some pep as well as reliability

The D16a is not as reliable, but you can upgrade it more...

in upgrading the equivalent ammount of cash would make a D16a go faster than a D15b. When it comes to just regular stock (looking for something to drive every day) (maybe some boltons), the D15b is reliable as the D16a 'causes nothing but problems...not saying it's a bad engine, but u rarely hear about it being reliable

Hope this helps

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junior40er &raquo;</TD></TR><TR><TD CLASS="quote">

Quote, originally posted by KrZyLiLGrL »
D16
please back this up with a reason. It doesnt help the guy if some one just says... "d16"


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I also have EG HATCH parts for sale https://honda-tech.com/zerothread?id=1377789
My Space http://www.myspace.com/junior40er

socal meet/photoshoot Long Beach San Pedro area https://honda-tech.com/zero...91619
</TD></TR></TABLE>

Why the hell are you jumping all over everybody for not posting a reason? The creator of this thread asked for an opinion. People don't have to explain their opinions, especially not to you.

His post is as follows:
"ok, so i have a choice to pick between two longblocks: either the jdm d15b or the d16a. what would be the better choice?? i know the jdm d15b is basically a vx bottom with a ex head, and a jdm d16a is equivalent to the usdm d16z6 right?"

So he's asking which one would each of you (meaning the people reading this) do? It's an opinion question, certain people have different experiences with different motors, you can't just claim one is better and then flame all who disagree...

vATTACK

none of the above...swap for a b series.

Bense

the d15b vtec is considered the best all around d-series. It uses a unique crank. It has the same stroke as a d15, however it uses the same rod length as a d16. As some of you may well know, the d16 crank has a different journal size than the d15. The jdm d15b vtec has a d15 crank with enlarged journals to fit a d16 rod.

the reason that honda did this, was to achieve a better r/s ratio of 1.62, which is the same as the b17. this results in a more stable higher reving motor.

The d15z1 is nearly identical, however it uses unique rods that fit on the standard d15 journal that are the same length as a d16 rod. the jdm d15b block is very very very similar to our d15z1. If you can get your hands on d15b pistons, you can use them in your d15z1 block. This is like a poor mans type d15b. the d15 crank, d16 rod length combination requires pistons that have a shorter compression height. This height is also the same as the d17 pistons. For a high compression d15crank/d16rod combo use the PMS 01-05 gx pistons.

revealing the d-series secrets one pay check at time.

my next purchase is going to be a 98-00 gx motor

Traymack1

what's a gx, I understood everything else in your post though. I thought I knew everything about the d15b but that was some good info for me.

street dreams

just get the one thats cheaper they r the same the only down fall for the d15b is that the parts r a mix between the d16z6 and the d15z1 vx motor

Bense

gx = natural gas motor. ultra high compression.

bob95egdx

Right now I'm running my stock D15B7 at 8 lbs of boost in my 4 dr 95 Civic Dx. I'm not not content with that and I'm planning on swapping the turbo stuff on my 95 hatchback with the same engine. I want to swap first and use either a USDM D16Z6 or a JDM D15B vtec. I will definitely be building the motor with aftermarket pistons , rods and ARP fasteners so I can run a lot more boost. What is y'alls opinion on this? I'm kinda leaning towards the D15B but is it possible to make at least 300 whp without sleeving the block. I don't want to spend a fortune on it, just a few paychecks. And I don't want a B series either so don't say it. Thanks in advance for any knowledgable advice on these 2 engine options.

Bense

unless you plan on constantly revving the **** out of the motor, I'd just get a d16z6.

sockvtec

haha cool i was readin this thread and noticed you used one of my quotes bense

?