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SUR6E
01-23-2006, 07:04 PM
i found a dutch site with the specs of the rex i had there

It was an ED9 with a D16A9 in it.. do we have that here in the USA??? :-? :cry:

MiMiK
01-23-2006, 11:45 PM
... the crx si comes with the d16a6.. the d16a9 might be a version of a dohc d-series.

Know Your Roots
01-24-2006, 12:32 AM
D16A9

http://16vmini.net/albums/donor/hondauitbouw01_jpg.jpg

http://16vmini.net/albums/donor/hondauitbouw02_jpg.jpg

http://16vmini.net/albums/donor/hondauitbouw11_jpg.jpg

Yeah. It was DOHC. Most likely a ZC relative.

boofthese
01-24-2006, 12:45 AM
wow i thought all d-series was sohc, i learn something everyday

Know Your Roots
01-24-2006, 01:16 AM
Nah. The D16A1 was DOHC, and they came in the USDM 1g Integras.

I think they're the only dual-cam D-series we got in the US. They're basically a ZC.

SUR6E
01-24-2006, 07:48 AM
... the crx si comes with the d16a6.. the d16a9 might be a version of a dohc d-series.
i thought that for quite a whilte too :)

know your roots, that's it, the dohc with pgm-fi.. I so wish it was available here :cry:

SUR6E
01-24-2006, 07:50 AM
wow i thought all d-series was sohc, i learn something everyday
meant to quote this, not boofthese :roll_eye:

Siegler
01-24-2006, 08:55 AM
maybe im dumb...why cant you put a b16 head on a d16 block? do the oil lines match up?

SUR6E
01-24-2006, 09:10 AM
I asked that question a long time ago, it doesn't work.. d and b series don't mix.. though it makes me wonder what's so different between the two. Aside from vtec. I'm interested in the details

Know Your Roots
01-24-2006, 10:02 AM
The DOHC with PGMFI is available here in the form of the D16A1 from the 86-89 Integra.

SUR6E
01-24-2006, 10:56 AM
but it's less powerful
any idea why?

SUR6E
01-24-2006, 11:25 AM
maybe that's not true, what are the specs of the d16a1?
130hp, 106tq i read about the a9

SUR6E
01-24-2006, 11:26 AM
http://www.16vmini.net/specs.htm

please look at the specs there and maybe you can tell me what engine tranny gets closest to that overhere

Know Your Roots
01-24-2006, 02:44 PM
The D16A1 (USDM 86-87 Integra) made 113~HP and 99~tq at 5,500 RPM
The D16A3 (USDM 88-89 Integra) made 118~hp and 103~tq at 5,500 RPM

It's JDM/EDM counterpart, the ZC, made much more power.

ZC made 137~hp and 108~tq at 5,700 RPM.

SUR6E
01-24-2006, 02:49 PM
why? what is different? everything? a cam?

SUR6E
01-24-2006, 02:51 PM
how much do the CRX's weigh in kg's? the EUDM one is 899kg

Know Your Roots
01-24-2006, 08:01 PM
Remember that's the engine's horsepower rating IN the car.

USDM cars have MUCH more strict emissions laws they have to follow. UNder the hood of a USDM car, you will see a lot of vacuum lines and emissions equipment you won't see in JDM and EDM cars. Even CDM cars don't have as stringent an emissions program.

So side by side, without emissions stuff, the engines would probably produce near idetnical horsepower. But when you add all the emissions shit, USDM engines take a dive.

SUR6E
01-24-2006, 10:37 PM
damn if that's the difference then that sucks

Know Your Roots
01-24-2006, 11:14 PM
There are some other small differences, but nothing major. Cam grinds are a little different, I think head porting on a few models might differ a little here and there, small differences in advance and timing, but in essence, most of the DOHC Ds/ZCs are pretty much the same.

I'm convinced that the reason the US cars lack the power of the EDM and the JDM cars is purly all the emissions-control equipment under the hood. My CRX is a perfect example. The same model in Japan made nearly 100 horsepower off the lot..the US counterpart made 76. The USDM Si made 91-ish HP, the JDM 1.5is made in upwords of 115 (EW5). On engines that were nearly the same, with minor differences. And that was with power steering.

SUR6E
01-25-2006, 10:10 AM
I thought they were tight on emissions in JDM world and europe too. Guess not then. So is it legal to put a ZC in ur car here? meaning a JDM version then I guess?

Know Your Roots
01-25-2006, 01:48 PM
As long as you can make it meet US Emissions standards. In other words, you have to make it pass SMOG.

Which is the issue I'm having right now, actually.

punkrock948
01-25-2006, 01:59 PM
maybe im dumb...why cant you put a b16 head on a d16 block? do the oil lines match up?

Actually, I've heard and seen pictures of this done only one time. It worked and ran fine, but it was ugly as hell under neath the hood with everything he had to do. Believe it saw it a year or two ago over on honda-tech. Try searching there if you want to find any pictures of it.

SUR6E
01-25-2006, 04:44 PM
As long as you can make it meet US Emissions standards. In other words, you have to make it pass SMOG.

Which is the issue I'm having right now, actually.
And that is different per state right?

Isn't it the story that people in JDM land get rid of their cars with low miles because of tight emissions inspections etc? Isn't that how we get the supposedly low miles swaps here?

How do you go about solving your emissions problem?

SUR6E
01-25-2006, 04:46 PM
Actually, I've heard and seen pictures of this done only one time. It worked and ran fine, but it was ugly as hell under neath the hood with everything he had to do. Believe it saw it a year or two ago over on honda-tech. Try searching there if you want to find any pictures of it.
LOL somebody had to try it. That's awesome. Makes sense to me though. Why not make a ZC with VTEC. Is the block too thin to add the extra oil lines or so? I don't know much about it but I'd think it's gotta be possible.

SUR6E
01-25-2006, 05:32 PM
just happened to land on this site www.naganojapanese.com/ jdm_zcdohcg1.htm
it says jdm zc gen1 has a compression of 11.0:1... I thought it had 9.6, or is that one of the differences?

SUR6E
01-25-2006, 05:33 PM
and about the gen2 it says it has VTEC?????????

MiMiK
01-26-2006, 12:20 AM
im pretty sure there was a zc that came with vtec but it was a single cam.