scarlemthug

K i am planning on swapping the B18b1 out of my 92 hatch and putting it into my 1998 coupe and take the engine out of that and put it into the hatch. So here is the problem, the motor in my 98 DX is auto and also is OBDII.

So to put it in my hatch I know i will need a d series manual tranny, d series shift linkage, D series manual axles, different motor mounts?, OBDI ecu?, and im not sure what else. IF you guys could give me a list of what i will need that would be awesome.

-Si tranny
-D series shift linkage
-oem aftermarket clutch
-D series axles
-motor mounts?
-ECU?
????

imported_loudsubz

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scarlemthug

interesting reply.

bbarbulo

iTrader: (2)

axles might be the same auto and manual.... double check before you buy, but I'm not sure cuz I don't do auto

scarlemthug

yeah i was going to put the auto tranny and stuff into the hatch but it would require alot of work which is why i want to get the D series 5spd stuff to put it into the hatch. Things im not sure about are if i can use an OBD1 ecu or if i have to use an OBD2 ECU with a conversion harness and also if i would need a 5spd ECU or if i can use the auto one.

What motor mounts will i need to change installing the D series 5spd into the hatch when it has a B series 5spd in it now?

imported_winner007

I heard my friend say that if u have auto car ECU u can use auto only, if u have a manuel car ECU u can use both ECU i believe. I'm not sure about the obd1 and 2 though.

imported_kIeRaN

hey chris, i hav engine mounts, ecu, and a clutch used for one summer, u will also need the flywheel

scarlemthug

kieran ill talk to you later about that stuff. Really I just wanna know what I will need to do to swap in the engine into the cx and if i can run an OBDI ECU or if i have to run a OBD2 ECU with conversion harness (should be in car as the B18b1 is OBD2.

Can i re-use the flywheel thats on the car now or will an auto flywheel resurfaced not work with a clutch?

imported_kIeRaN

no problemo, its not going anywhere anytime soon

scarlemthug

So no one has answers guys?

Scott-93HBSi

You will need.

For the D-series
D-series Upper MT Tranny mount(reuse from your B-swap), D-series front MT mount, MT starter. Clutch, PP, FLywheel from a 92+ MT. D-series Shift linkage.

For the B-series into the Auto EK - you need MT Upper tranny mount. MT B-series Front tranny mount. B-series Shift Linkage (resuse from your Current swap).

As for axles, the B-series work in the EK fine. The EK D-auto axles will work fine in the EG with an MT.


I have a lot of these parts. PM me if you need them, or if you need the swap done.

scarlemthug

So for the hatch
-D series tranny
-D series front MT mount
-RE-use upper MT tranny mount
-D series MT starter
-Clutch, PP, MT flywheel
-D series shift linkage
-re-use axles from D auto

What do i do for the ECU, can i use an OBDI ecu or do i need to use the conversion harness with an MT or auto OBD2 ECU?

for the EK
-honda mounts with ES bushings?(upper tranny and front tranny mount MT)
-Pedals
-clutch master cylinder and slave cylinder
-use ECU from swap

Thanks for the advice, i may need someone to do it if i cant get some people from the club to help me out.

Scott-93HBSi

Yup - that is correct.
As for ECU in the D-series EG - i would use a P06 - chip it for 1.6L.

EK ECU i would reuse the one from the EG - get an Adapter harness to use the OBD1 ECU in the OBD2 car. (i have one if you need it).
Clutch MC, Clutch Slave, Hydraulic lines, pedal set from a MT car, console w/shiftboot (or just a shift boot and install it inplace of the AT gear select). You'll need to remove the welded auto gear select lower cover (it's welded to the floor of the car). You'll then need to make new mounting points for the shift linkage stabilizer bar.

You'll need to leave the Wiring harnesses in the cars (EG and EK keep their harness). You will need to switch the injectors, purge valves, etc, and re-pin the distrubutor. Wiring will probably be the trickiest part of the swap.


Let me know if you have anymore question, or if you need help doing the swaps.

scarlemthug

K so i couldnt use the auto ECU from the EK in the EG right? I will need to get an ECU thats atleast MT? I am just worried if i use an OBD1 ECU with OBD2 engine that i will be missing sensor connections and stuff?

Im pretty sure the eg has a conversion harness with an OBD2 ECU but i will have to check on that to make sure.

As for the EK swap ill have to remove all the auto stuff, weld up a piece to fill the holes in the floor and tap some mounting holes for the shift extension correct?

So I leave all the wiring harnesses alone (engine bay?)? What do you mean i will have to switch the injectors, purge valves and re-pin the distributor? So to put the OBD 2 engine into the OBD1 car i will need to switch the injectors for some OBD 1 injectors, and the distributor harness is different aswell? The B18b1 is OBD2 im pretty sure so will i have to mess around with it?

scarlemthug

actually if you could just advise me on the D series into the eg right now that would be good as the EK swap prolly wont be done for a little while.

btw if u could pm me and let me know how much u would charge to do both swaps at the same time i would appreciate it.

Scott-93HBSi

Ya - you can't use the the ECU from the Auto EK in the EG - since it's completely different wiring connections, and the EK's have many extra sensors that the EG Doesn't have. Plus it's for an Auto so it'll throw Check engine light. Yes, you'll need a manual ECU for the EG.

I doubt your EG has has an OBD2 ECU - it would be throwing lots of codes if it was an OBD2 ECU in an EG.

Since the wiring harnesses have to stay with the chasis - i suggested changing the injectors over, and other sensors, since it's easier than cutting the connectors off and soldering the them back into the other harness (why hack up a perfectly good harness).


Anyways, i sent ya a PM to let you know what the cost to do both would be.

scarlemthug

so id be best changing the injectors, purge valves (which ones are these) and the distributor wiring and use an OBDI ECU than tryin to mess with an OBD2 ECU and ****?

thanks for all the input man, i really appreciate it.

Scott-93HBSi

Ya - even if you had an adapter to run an OBD2 ecu in the car you'd get a solid check engine light, since the car is missing sensors such as Fuel tank Pressure sensor (unless you wanna go through all the trouble of faking it out, or adding the EK sensors to the car). It's not worth the effort, when a P06 OBD1 can be had for $40-60.

scarlemthug

so P06 ECU, OBD1 injectors, re-pin distro and some check valve stuff would be the simplest way as far as wiring?

scarlemthug

So what valves would need to be switched on the engines?

Anyone got a link for re-pinning the distributor for the D series?

Also how do people usually do the mounting points for the shift extension on a auto to manual conversion?