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Old 07-20-2010, 08:45 AM   #1
marcus8789
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Zenki or Kouki?
I just purchased an S14 Blacktop SR20DET motor. What s14 is it? Is it the s14 zenki or kouki? Here are some pictures....Thanks in advance.

Marcus





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Old 07-20-2010, 09:14 AM   #2
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Took 3 minutes to search and find this:

http://zilvia.net/f/engine-tech/2864...-problems.html
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Old 07-20-2010, 10:00 AM   #3
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all depend son the year of the motor. Zenki usually runs with a OBD1 type harness, which most s14 harness rewiring write ups are based off of. and Koukis have a OBD2 type harness. Little different.
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Old 07-20-2010, 10:33 AM   #4
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Originally Posted by DriftVader View Post
all depend son the year of the motor. Zenki usually runs with a OBD1 type harness, which most s14 harness rewiring write ups are based off of. and Koukis have a OBD2 type harness. Little different.

WTF? they are all OBD1 -- Japan never had OBD2 as far as I know. The ecu is the easiest way to tell.

NA = Kouki

WC= Zenki


IIRC
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Old 07-20-2010, 10:41 AM   #5
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Really.. maybe i was mistaken then, il be looking into that. thanks!
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Old 07-20-2010, 11:03 AM   #6
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Thanks for all the replies guys. So I know now that the wiring and tye ecu is a kouki from the NA on the ecu, but how can you tell if tge engine is a zenki or a kouki?
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Old 07-20-2010, 11:31 AM   #7
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Quote:
Originally Posted by marcus8789 View Post
Thanks for all the replies guys. So I know now that the wiring and tye ecu is a kouki from the NA on the ecu, but how can you tell if tge engine is a zenki or a kouki?

I do not know did not do my own wiring. Had Yuri do it from wiring specialties. I know the ecu pin outs are different from the zenki to kouki and the Apexi for the kouki sr20det is called a Series 3 on the programmer. So, I would think that was three revisions. Do not know what they are exactly. The s14b, s14a, s15 all have sr20dets and all have different wiring.
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Old 07-20-2010, 12:00 PM   #8
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its kouki for sure, has fins on the head, and an "NA" ecu.
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Old 07-20-2010, 12:07 PM   #9
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Thanks guys...
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Old 07-20-2010, 12:17 PM   #10
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NA ecu gives it away, Kouki
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Old 07-21-2010, 01:02 PM   #11
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Definitely a Kouki.. Fins from the head and ECU just like other had said.. Just curious how much you picked the motorset for..
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Old 07-21-2010, 01:06 PM   #12
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Definitely a Kouki.. Fins from the head and ECU just like other had said.. Just curious how much you picked the motorset for..
I picked up the motor/trans/wiring/ecu/stock smic with piping/mafs/ oem s14 radiator, etc...for $1900 shipped from NY to Ca.
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Old 07-21-2010, 01:44 PM   #13
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I picked up the motor/trans/wiring/ecu/stock smic with piping/mafs/ oem s14 radiator, etc...for $1900 shipped from NY to Ca.

fuk these engines have come down soooooo much. 5 years ago mine was 3 grand for that same engine. DAM IT....
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Old 07-21-2010, 01:49 PM   #14
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fuk these engines have come down soooooo much. 5 years ago mine was 3 grand for that same engine. DAM IT....
Lol tell me about it. Five years ago i purchased a s13 sr20det red top and it cost me $2k. I did a lot of research and finally found a good reliable guy in NY. He hooked me up and gave me the radiator and the whole oem smic/piping for free.
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Old 07-21-2010, 03:31 PM   #15
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Thanks for all the replies guys. So I know now that the wiring and tye ecu is a kouki from the NA on the ecu, but how can you tell if tge engine is a zenki or a kouki?
Its a Kouki Engine

Zenki Engine Valve cover uses the stud nut combo
Kouki's use a bolts for the V/C
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Old 07-21-2010, 04:01 PM   #16
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Its a Kouki Engine

Zenki Engine Valve cover uses the stud nut combo
Kouki's use a bolts for the V/C
Kool, thanks for the information. I just wanted to make sure I got what I ordered. You know how some of these guys are, you order one thing and they sell you something else lol.
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