Creepin_B

hey guys just a few questions.

i installed and wired up my d15b today (93 hb cx). the tranny is not in yet..

-the motor came as an automatic. can i use the A/T flywheel bolts on my 5spd trans????

-i have a p06 ecu currently. my motor will run right? just no vtec..

-driveshafts for this will be normal SOHC 92-95 2drs????

-starter/alternator will be fine off any d-series SOHC..????

-and what clutch's do you suggest. max whp goal (230)
I also have a OMNI quikclutch master cylinder (badass)


Thanks in advance..

Hopefully she'll be driving tommorow night.

imported_SaYjAiBaO

the drive shaft are all the same on the d series. i don't know about the bolts and ecu though.

btw i'm doing a similar swap but it's a z6. did you reuse your old harness and just wire up vtec? or will you because you don't have the p28 yet.

imported_fiercecivic

-the motor came as an automatic. can i use the A/T flywheel bolts on my 5spd trans????

Answer to this question no, you must use you 5 speed flywheel bolts, the auto are a diffrent length.

-i have a p06 ecu currently. my motor will run right? just no vtec..

Answer to this, yes eventually youll have to either chip that ecu for vtec or run a p28

-driveshafts for this will be normal SOHC 92-95 2drs????

Answer to this, yes all sohc eg shafts are identical

-starter/alternator will be fine off any d-series SOHC..????

Answer to this, no an auto starter wont fit on a 5speed tranny, if your d15b came with the strarter you will need to use ur 5speed starter. as for the alternator if it fits in the rack and the plug fits, it will work.

-and what clutch's do you suggest. max whp goal (230)
I also have a OMNI quikclutch master cylinder (badass)?

As for this i kind of chuckled to myself when you said you were looking to get 230 whp out of a d15b. theres is no possibly way other than slapping a massive turbo and building the s**t outa the motor that you are gonna pump 230 whp out. but if your goin for the torque throw a stage 3 clutch on.

imported_SaYjAiBaO

massive turbo to reach 230whp? i don't think you need a big turbo to reach that goal. maybe if you wanted to reach 300+ then yeah a massive turbo will be needed. you'll need at least internals done because those rods can't handle the power.

Creepin_B

230whp would not be N/A, if i wanted N/A power i woulda chose a different motor.
I plan on putting a greddy 2mm head gasket, ARP studs..
And running 10-12psi on a T3 series turbo...

I happened to come across the bolts, driveshafts, alt, starter, and a used stage 2 clutch tonight... Everything should be good for tommorow...

The harness included with my engine is reversed...
I went to the scrap yard and pulled a EG 5spd harness.
The VTEC wiring is there so it was obviously an Si..

I will be looking for a p28 in the next couple of days once everything is running properly..

Ill try to get some pics up when its done..

Thanks again

imported_Mattds

can someone quickly tell me more about this motor? I just arranged to get a swap done, and i wasn't clear on which motor they said they're swaping in. The guy from Teknotik said it was a jdm si motor with about 130ph? but that is was a d15something....

imported_wajih1

JDM si motor is a D15b vtec.

imported_Mattds

what's the output of this motor? and what's the output of DOHC ZC motor? (if anyone knows)

tanjian

ratings are apparently 130 JDM D15, 140 ZC DOHC... but well you never really know...

I've got the JDM D15B, and also considered the ZC, but several acquaintances have blown their ZC, none of them ever reported a blown J D15B...

I don't know enough about these engines to tell you the difference between a JDM D15B and a USDM D16 VTEC... rumours are the D15B's power is under rated...

I like mine so far, but then again, I'm not out there to race... more just for wee wee and zoom zoom...

in the end I went with the hearsay reliability over power... besides the ZC is the older of the two...

your ride, up to you...

preludeking

The JDM sohc ZC and D15B are not the same motor. The ZC is 1.6 and the D is 1.5.

That being said the D15 (from my experience .. <-- (from zc guys)) is a far superior engine. Its got a much better rod stroke ratio and doesn’t have bottom end problems like the 1.6L.

Tanjian is also right that the ZC is an old engine. We (teknotik) have basically stopped importing ZC's all together. They are very old engines and its near impossible to find them with VERIFIED low km and that are in good condition.

If you have the choice, take a D15b anyday. They are a great and very reliable engine. Added to that fact, despite being .1L smaller, they do make more power (130hp). Great powerplant overall, and very reliable.

chris_si98

I also chuckled to myself when i read this^^

imported_wajih1

i have the D15b vtec in my car as well and i like it, its peppy for a small motor, i have also heard (not sure) that parts are much harder to find for a ZC.

Creepin_B

My motor is up and running now...
I installed a EXEDY clutch kit, and OMNI quikclutch M/C
I obviously havent pushed the motor as i have to break in the clutch..

Right now i have a couple issues left....
1. id like to get my p06 chipped to run the VTEC. where can i go?
2. my motor is idling very weird. the throttle response is amazing. but idle is sounding like its got some crazy *** cam in it.....
VRRRm, drops down idle, VRRRM, drops down idle, VRRM etc..
3. I wired up my 1-wire JDM o2 sensor into the 4 plug USDM sensor..... I found it on honda tech, and it seems to be working properly.

FYI the wiring scheme i found was...
USDM
1-GRN/WHT 2-WHT
3-ORN/BLK 4-YEL/BLK
JDM
1-WHT

1 - Connect GRN/WHT on the four wire oxygen sensor plug to the GRN/WHT wire that connects to the ECT sensor, IAT sensor, or TPS sensor. All of these sensors/components share the same GRN/WHT circuit.

2 - Connect WHT wire on four wire oxygen sensor plug to the WHT wire from the one wire oxygen sensor plug.

3 - Connect OAR/BLK wire on the four wire oxygen sensor plug to pin A6 on the ECU.

4 - Connect YLW/BLK on the four wire oxygen sensor plug to the YLW/BLK wire that connects to the fuel injectors, IACV sensor, or EVAP Purge Control Solenoid Valve. All of these sensors/components share the same YLW/BLK circuit.



Any suggestions to any of this??
thanks again guys

Creepin_B

I found out its running on 3 cyl.
Spark is good, I still have to check my plugs..
If they're good, ill use my stethascope to see if the injectors are pulsing.....
If they're fine too, the last thing ill do, which im almost affraid to....
is compression test.

If i bought a bad motor from a jdm shop ill cut his freakin head off for all the time wasted.