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dantheman1124 · 01-04-2008, 02:28 PM

I just picked up a b18a1 motor and i have no clue what i need to get to do the swap. the motor was in a 91 acure integra. can anyone tell me everyhting i will need to do the swap? will my wiring harness work? ecu? motor mounts? anyhting else? OH its goin in a 90 civic 4 dr
thanks

whiterabbit06 · 01-04-2008, 03:40 PM

If I were you get a Haynes or Chiltons manual for both the Civic and the Integra so you can compare ecu wires. You are going to need to switch from DPFI to MPFI. As far as parts I assume you have the Engine, Transmission and ECU. You should also get the engine wiring harness for the Integra if you don't have it already. I would start on the wiring part first as it will take some time. I'm doing the same thing only I just decided to rewire the Civic like the Integra. If you want some pics check out my thread

BrutalB83 · 01-04-2008, 03:48 PM

Quote:

Originally Posted by dantheman1124

I just picked up a b18a1 motor and i have no clue what i need to get to do the swap. the motor was in a 91 acure integra. can anyone tell me everyhting i will need to do the swap? will my wiring harness work? ecu? motor mounts? anyhting else? OH its goin in a 90 civic 4 dr
thanks

I hope you got the transmission and ECU in addition to the motor. You have to use a B-series tranny on a B-series engine. Your Civic's transmission won't work.

drummingpariah · 01-06-2008, 12:08 AM

Quote:

Originally Posted by dantheman1124

I just picked up a b18a1 motor and i have no clue what i need to get to do the swap. the motor was in a 91 acure integra. can anyone tell me everyhting i will need to do the swap? will my wiring harness work? ecu? motor mounts? anyhting else? OH its goin in a 90 civic 4 dr
thanks

Well, here's a good place to start:
b18a1 swap « Project CRX

Without knowing exactly what model civic you have, it's hard to say what you'll need. Is it DPFI or MPFI?

it'd be appreciated if you subscribed to my projectcrx site as well.

xips(86CRXSI) · 01-07-2008, 01:25 AM

Quote:

Originally Posted by BrutalB83

I hope you got the transmission and ECU in addition to the motor. You have to use a B-series tranny on a B-series engine. Your Civic's transmission won't work.

I would also get the integra axles and spindles/hub assembly, they will bolt right up and you wont need hybrid custom axles.

drummingpariah · 01-07-2008, 01:35 AM

Quote:

Originally Posted by xips(86CRXSI)

I would also get the integra axles and spindles/hub assembly, they will bolt right up and you wont need hybrid custom axles.

You shouldn't need to swap the hub assembly for any reason. Just remove the inner dust shield, and the Integra axles (which are sensitive to ABS or not ABS) should slide right in and not mess with geometry at all. Go for '90 - '93 Integra axles.

xips(86CRXSI) · 01-07-2008, 01:21 PM

Quote:

Originally Posted by drummingpariah

You shouldn't need to swap the hub assembly for any reason. Just remove the inner dust shield, and the Integra axles (which are sensitive to ABS or not ABS) should slide right in and not mess with geometry at all. Go for '90 - '93 Integra axles.

I don't know about that, With my swap I did in my 89 hb I had to us the spindles off the teg, because the splines are way bigger on the teg axles, I don't see how removing the dust shield would make the bigger teg axle splines fix in the civic hubs.

drummingpariah · 01-07-2008, 02:40 PM

Quote:

Originally Posted by xips(86CRXSI)

I don't know about that, With my swap I did in my 89 hb I had to us the spindles off the teg, because the splines are way bigger on the teg axles, I don't see how removing the dust shield would make the bigger teg axle splines fix in the civic hubs.

It may be different on a per-trim level. My CRX Si had no problems whatsoever with 90-93 LS/RS axles.

ls/vtechatch91 · 01-07-2008, 02:58 PM

i had ls/vtec in my 91 hatch and the integra axles fit right in... didnt have to do anything.... weird... but now its in my integra....

xips(86CRXSI) · 01-08-2008, 01:20 AM

Quote:

Originally Posted by drummingpariah

It may be different on a per-trim level. My CRX Si had no problems whatsoever with 90-93 LS/RS axles.

Well maybe thats the case, I did my swap on a dx civic hb.

ls/vtechatch91 · 01-09-2008, 03:00 AM

mine was a dx too... there shouldnt be any difference... i didnt have any problems

xips(86CRXSI) · 01-10-2008, 07:49 PM

Well maybe it was because I was running a YS1 trans.

drummingpariah · 01-11-2008, 01:52 PM

Quote:

Originally Posted by xips(86CRXSI)

Well maybe it was because I was running a YS1 trans.

The YS1 is exactly the same transmission I used for my CRX. It's the default B18a1 cable tranny. I don't see any reason you should need to swap your knuckle assembly for that.

Even when I DID swap my knuckle assembly (including wheel hubs) for the '91 Integra knuckles(for a brake upgrade), the very same axles worked perfectly. No troubles whatsoever.

xips(86CRXSI) · 01-15-2008, 11:33 PM

well whatever, the fact is, when I did my swap I had to use the hubs off the tegge, because the splines on the tegge axles were bigger!

fullmetaltommy · 05-01-2008, 10:10 PM

so if im doing a b18 swap in my 95 civic do i need the spindles and all that from the integra im gettin it from

BrokenRex · 05-02-2008, 09:19 PM

the 4speed civics all came with smaller hubs, and will need to swap them to the ex, si or integra hubs. that includes all years of the HF rex, hatch std and one of the civic sedans (i dont remember the year/model). if your swap recipient is a 4 speed, you'll need the hubs, if it's got five forward gears, you're fine with yours.

01-04-2008, 02:28 PM	#1
dantheman1124 Junior Member Join Date: Oct 2007 Posts: 3 iTrader: 0 / 0% Rep Power: 0	b18a1 swap help I just picked up a b18a1 motor and i have no clue what i need to get to do the swap. the motor was in a 91 acure integra. can anyone tell me everyhting i will need to do the swap? will my wiring harness work? ecu? motor mounts? anyhting else? OH its goin in a 90 civic 4 dr thanks

01-15-2008, 11:33 PM	#14
xips(86CRXSI) Senior Member Join Date: Aug 2005 Location: Portland, OR Age: 24 Posts: 105 iTrader: 0 / 0% Ride: 91 si hb gsr swap Rep Power: 10	well whatever, the fact is, when I did my swap I had to use the hubs off the tegge, because the splines on the tegge axles were bigger! Last edited by xips(86CRXSI); 01-15-2008 at 11:35 PM.

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01-07-2008, 02:58 PM	#9
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	i had ls/vtec in my 91 hatch and the integra axles fit right in... didnt have to do anything.... weird... but now its in my integra....

01-09-2008, 03:00 AM	#11
ls/vtechatch91 Senior Member Join Date: Sep 2006 Location: washington Age: 22 Posts: 339 iTrader: 0 / 0% Ride: 91 integra with ls/vtec... Rep Power: 10	mine was a dx too... there shouldnt be any difference... i didnt have any problems

01-10-2008, 07:49 PM	#12
xips(86CRXSI) Senior Member Join Date: Aug 2005 Location: Portland, OR Age: 24 Posts: 105 iTrader: 0 / 0% Ride: 91 si hb gsr swap Rep Power: 10	Well maybe it was because I was running a YS1 trans.

05-01-2008, 10:10 PM	#15
fullmetaltommy Junior Member Join Date: May 2008 Posts: 1 iTrader: 0 / 0% Rep Power: 0	so if im doing a b18 swap in my 95 civic do i need the spindles and all that from the integra im gettin it from

05-02-2008, 09:19 PM	#16
BrokenRex Senior Member Join Date: Mar 2008 Age: 26 Posts: 354 iTrader: 0 / 0% Rep Power: 11	the 4speed civics all came with smaller hubs, and will need to swap them to the ex, si or integra hubs. that includes all years of the HF rex, hatch std and one of the civic sedans (i dont remember the year/model). if your swap recipient is a 4 speed, you'll need the hubs, if it's got five forward gears, you're fine with yours.

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b18a1 swap help