grizzled

Hey guys, new to Honda-Tech and I had a question about a swap I should be starting this month and I hear this is the place to come for answers. And yes, if you're wondering, I've already done a search and didn't see anyone ask these same questions yet.

A little background info, the swap consists of a '98 JDM Type-R B18 with LSD option tranny into a '97 Civic Coupe.

The Engine/Tranny are currently installed in and awaiting removal from a '93 hatch with a P28 ECU w/conversion harness and a non-factory distributor, but everything else on the swap should be factory.

From research I've done thus far, I believe (correct me if I'm wrong) the additional hardware I'll need is:

'99+ SI rear mount
'96+ GSR Distributor
'96+ Del Sol p54 bracket (since I'd like to have the option of AC)
'96+ Type-R P73 ECU

First question is, will I need a larger fuel pump or anything else not listed (mechanically) for the new motor to work as intended?

Second question is, I've already got an OBD2a ECU with the current stock D16Y8. The B18C6/7 was once OBD2 compliant, but I believe a lot of the parameters on my current ECU will be incorrect for the new motor (redline, vtec activation, etc). So... will a '96+ P73 ECU from a USDM Type-R work safely and pass emissions (not in Cali)?

Thanks in advance!


Modified by grizzled at 4:44 PM 6/14/2006


Modified by grizzled at 8:56 PM 6/18/2006

fmrprojects

yeah the 96-98 ecu will work in your car. is everything in the motor obd-2 already? if it is then just get a 99-00 si harness and plug it all up

grizzled

Ok, so the ECU should work, but my stock harness won't bridge between them? It's still an OBD2A-OBD2A harness (VTEC compatible, I don't know if that's important or not).

As far as the rest of the question, what about Emissions, and the fuel pump? I'm sure the Type-R is going to have bigger injectors, but will they be big enough to necessitate a new fuel pump?

Thanks guys

Vero

the EX (d16y8) ECU will not work. It may run the motor, but not well.

a JDM ecu may not pass local emissions either as US and Japan are different emssions. If you want to be 100% emissions compliant try to find a US spec ITR ecu. You can always get an OBDIIb to a conversion harness if you end up with a newer model ecu.

NJcoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grizzled &raquo;</TD></TR><TR><TD CLASS="quote">Hey guys, new to Honda-Tech and I had a question about a swap I should be starting this month and I hear this is the place to come for answers. And yes, if you're wondering, I've already done a search and didn't see anyone ask these same questions yet.

A little background info, the swap consists of a '98 JDM Type-R B18 with LSD option tranny into a '97 Civic Coupe.

The Engine/Tranny are currently installed in and awaiting removal from a '93 hatch with a P28 ECU w/conversion harness and a non-factory distributor, but everything else on the swap should be factory.

From research I've done thus far, I believe (correct me if I'm wrong) the additional hardware I'll need is:

'99+ SI rear mount
'96+ GSR Distributor
'96+ Del Sol p54 bracket (since I'd like to have the option of AC)
'96+ Type-R P73 ECU

First question is, will I need a larger fuel pump or anything else not listed (mechanically) for the new motor to work as intended?

Second question is, I've already got an OBD2a ECU with the current stock D16Y8. The B18C6/7 was once OBD2 compliant, but I believe a lot of the parameters on my current ECU will be incorrect for the new motor (redline, vtec activation, etc). So... will a '96+ P73 ECU from a USDM Type-R work safely and pass emissions (not in Cali)?

Thanks in advance!</TD></TR></TABLE>

The P54 A/C bracket will not work in your car to my understanding, you need to use a CR-V P7J bracket or a 99-00 Si P2T bracket.

Slopoke

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmrprojects &raquo;</TD></TR><TR><TD CLASS="quote"> if it is then just get a 99-00 si harness and plug it all up</TD></TR></TABLE>

This is incorrect. The '97 civic is obd2A while the '99-'00 si is obd2B.
The harnesses are not compatible.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grizzled &raquo;</TD></TR><TR><TD CLASS="quote">
From research I've done thus far, I believe (correct me if I'm wrong) the additional hardware I'll need is:

'99+ SI rear mount
'96+ GSR Distributor
'96+ Del Sol p54 bracket (since I'd like to have the option of AC)
'96+ Type-R P73 ECU
</TD></TR></TABLE>

You will aso need the driver side mounting bracket(the piece that bolts to the block, under the timing cover) from the '99-'00 si.
Im unsure about the p54 bracket. I know you use that for EGs, but I dont know about EKs.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grizzled &raquo;</TD></TR><TR><TD CLASS="quote">
First question is, will I need a larger fuel pump or anything else not listed (mechanically) for the new motor to work as intended?
</TD></TR></TABLE>

Your stock fuel pump will be just fine.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grizzled &raquo;</TD></TR><TR><TD CLASS="quote">
Second question is, I've already got an OBD2a ECU with the current stock D16Y8. The B18C6/7 was once OBD2 compliant, but I believe a lot of the parameters on my current ECU will be incorrect for the new motor (redline, vtec activation, etc). So... will a '96+ P73 ECU from a USDM Type-R work safely and pass emissions (not in Cali)?
</TD></TR></TABLE>

A p73 ecu should work, but Im not sure if you will have problems passing emission and inspection(we dont have that around here).

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grizzled &raquo;</TD></TR><TR><TD CLASS="quote">Ok, so the ECU should work, but my stock harness won't bridge between them? It's still an OBD2A-OBD2A harness (VTEC compatible, I don't know if that's important or not).
</TD></TR></TABLE>

You have to reuse your stock harness. You shouldnt need to add any wires, since you harness is already wired for vtec and knock sensor, but you may need to extend a few, to get them to reach on the dohc.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vero &raquo;</TD></TR><TR><TD CLASS="quote">
a JDM ecu may not pass local emissions either as US and Japan are different emssions. If you want to be 100% emissions compliant try to find a US spec ITR ecu. You can always get an OBDIIb to a conversion harness if you end up with a newer model ecu.</TD></TR></TABLE>

Be careful, some of the obd2B ecus have immobilizers which has to read a code from the iginition key before it will allow the engine to start.

grizzled

Man! You guys didn't let me down, and I know it's got to take a lot of effort to read all these threads that ask for swap info these days.

Ok, I see that I need to revise the list. The semi-final product for parts needed for an emissions-legal '98 JDM ITR Eng (missing dizzy) + Tranny into '97 Civic EX:

'99+ SI rear motor mount
'99+ SI driver-side motor mount
'96+ GSR Distributor
'99+ Si P2T or CR-V P7J bracket to have AC
'96-'98 Type-R USDM ECU (P73) using stock (possibly lengthened) EX harness

Now, the list is semi-final because there was one last answer i was hoping to drag out of someone before letting this thread die.

The question is, do I need to go with a bigger radiator, possibly from a GSR?

Once again, thanks for all your help Slopoke, dxcoupe, and Vero!

Slopoke

No, you dont have to swap to a bigger radiator.

I ran an ITR motor on a stock radiator for 2 years, with no problems.

That is, of course, assuming your stock radiator is in good shape.

If it isnt, you can by dual core radiator that is the same size as your stock one. I believe the delsol vtecs came with them and I've heard that all automatic civics came with them too.

grizzled

Ok, thanks for all the help guys. To hopefully alleviate the same questions coming up again in the future, I'll summarize what I've learned so far:

Additional parts needed for an emissions legal (most states) JDM 98 ITR -&gt; 96-98 EX swap:

- '99+ SI rear motor mount
- '99+ SI driver-side motor mount
- '96+ GSR Distributor (for OBD2a)
- Either the '99+ Civic Si P2T, CR-V P7J, or Del Sol P54 bracket (for AC)
- '96-'98 Type-R USDM ECU (P73)

Stock / modified stock parts to reuse:

- EX harness (possibly needs to be lengthened)
- EX Radiator
- EX fuel pump
- EX motor mounts not listed above
- EX throttle linkage

Again thanks for all the input, and as always, if you see anything that you're sure needs to be corrected feel free to speak up.

grizzled

I'm started on the path, just acquired the p73 ECU and '97 GSR distributor.

I'll be starting the swap as soon as I settle on motor mounts, the AC bracket can wait...

Thanks for all the help, I'll keep you guys posted~