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marcus8789
07-20-2010, 08:45 AM
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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jspaeth
07-20-2010, 09:14 AM
Took 3 minutes to search and find this:

http://zilvia.net/f/engine-tech/286425-s14-sr20-ecu-differences-problems.html
DriftVader
07-20-2010, 10:00 AM
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.
jamanrr
07-20-2010, 10:33 AM
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
DriftVader
07-20-2010, 10:41 AM
Really.. maybe i was mistaken then, il be looking into that. thanks!
marcus8789
07-20-2010, 11:03 AM
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?
jamanrr
07-20-2010, 11:31 AM
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.
h22ek
07-20-2010, 12:00 PM
its kouki for sure, has fins on the head, and an "NA" ecu.
marcus8789
07-20-2010, 12:07 PM
Thanks guys...
theboy
07-20-2010, 12:17 PM
NA ecu gives it away, Kouki
GroundPerformance
07-21-2010, 01:02 PM
Definitely a Kouki.. Fins from the head and ECU just like other had said.. Just curious how much you picked the motorset for..
marcus8789
07-21-2010, 01:06 PM
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.
jamanrr
07-21-2010, 01:44 PM
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....
marcus8789
07-21-2010, 01:49 PM
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.
Sileighty_85
07-21-2010, 03:31 PM
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
marcus8789
07-21-2010, 04:01 PM
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.