I plan on putting a B18C5 into my CRX with the hydro tranny. Ive already found an explaination of how to fit the tranny and all but i have some other questions. Id like to use the ITR ECU but i know its gonna be a bitch to convert the wiring to OBD II. Does anyone have a wiring diagram. What gauges do i use also? Is there anything i should look out for so i dont wind up in a mess? Any help is appreciated.

LEGOLAS

 

I would forget about trying to use the ITR ECU.
you can do a OBDI convertion, and run a P28 chipped.
Or, you can use a PR3 OBD0 ECU(JDM B16), get it chipped (Mugen) and you are set.

People here keep saying that the OBD1 is better, but I can tell you from personal experience that the PR3 OBD0 is just as good.
My engine (stock) puts down more HP than two ITR's in town that went the OBD1 P28 ecu route.

About gauge, use the ones in your car.
You will have to get a transmission mounted VSS (they all are electronic, just depends on where they are located). I have a JDM cluster, so I have a ITR VSS on my cable tranny, and wired it into the ECU.

 

Well I dyno 177whp and 129.8 torque with i/h/e re-chipped P28 ECU, and tuning with a V-AFC. I baselined 175/123 with just i/e and P28 ECU - kenji program.

If you're comparing actual Integra Type R's converted to P28, keep in mind that they still probably have A/C and P/S too, while I'm pretty sure you don't.

I'd go OBD1 harness because it's easier to find P28 ECUs, and there are locals here in the U.S that make awesome programs for as little as $150.00 (maybe even less by now) so you won't be searching and paying upwards of $200.00-$250.00 just for an ECU - that's how much those PR3 ECUs go for here in ATL.

The ITR ECU will suck *** in a few ways:

1. Extra wiring for the extra OBD2 sensors.

2. USDM ITR ECUs have the immobilzer system in them too, unless you get a JDM ECU which brings me to number 3

3. If you run the JDM P73 ECU (I ran one briefly with a jumper harness) you will have less power and a shitty 115mph-120mph speed limiter.

 

Hey! What type of program is good to chip a P28? A friend of mine has a B18C5 in his 93 Civic coupe.

 

I dynoed my B18C5 at 185Hp and 134 lb/ft. Bone stock.
Intake, header, exhaust, PR3 Mugen chipped ECU and Fields VTEC controller, which SUCKS!
I did not move the cam gears, and did not play with timing.
Not too shabby for the crappy OBD0 ECU that did not require extra wiring or different injectors or OBD1/2 distributor.

 

so you ran the oBD2 injectors and distributor? How?

 

Okay so was this a Mustang dyno that you were on?

I'm sorry to sound like a skeptic, but 185whp from those mods seems very high.

As far as my own set-up, it's not even in an EF, but a 1992 CX hatch so mine was 100% plug and play with not one single wire (not even VTEC) having to be ran and I kept all of the ITR stuff like injectors, distributor, engine harness, etc.

 

Yes, I know where you are going with the Mustang dyno. No, it was on a Dynojet and not only that, my friend David with basically the same set up on his CRX did 183HP, don't remember the exact torque.
It's all in the tuning, I did no less than 20 runs over an entire afternoon.

About plug and play, please remember you are posting on the EF forum. Quite a bit different from the EG/EK.

So getting back to the topic, if you go the P28 route on an EF here is the true scenario. You would have to get:
OBD1 distributor.
OBD1 injectors
rewire the distributor and injectors
OBD1 ECU
OBD0 to OBD1 wirng harness
Then chip the OBD1 ECU.

 

 

Yes I understand that in the Ef OBD1 will not be plug and play - I'm always about the easiest set-up, so in the case of the Ef I'd say OBD0 as well.

Excellent numbers btw - 183whp is sweet!

 

Very sweet. Back to the dyno, tom? I was wondering if it was possible to run an SiR I dist, inj, and wiring harness with a PR3 ecu, all on the B18C5. This would create a plug-and-play scenario, wouldn't it?

 

When u say sir 1 do u u man a 1st gen b16 ? If so then yes , but i would use the stock harness from the car. In fact that would be the best and easiest way to run it. Only problems would be the stock pr3 ecu would have to be reprogrammed and u may wanna consider finding or building a cable b16 tranny w/ a lsd

 

yeah, SiR I i meant an 88-91 JDM CRX SiR B16A. I just figured it would be the best/easiest/cleanest way to run all of the wiring. (probably a really dumb question) but can you get a chipped/reprogrammed PR3 or can you just reprogram OBD I ECUs (like a P28 or something)?

 

i have a reprogramed non obd pr3 , i got a custom program from ericks racing when i was running my hign c.r. ls/vtec and now im running the same ecu w/ my b18c5

 

So if i used a Hondata program on the PR3 non-OBD ECU it would work fine right or would it still need to be chipped. As far as wiring i like the idea of using the SIR1 Distributor, and injectors with the stock wiring harness. But what about as far as the Transmission is concerned. I read a really good explaination of how to use the ITRs transmission and that would probably offer the best gearing for the engine since it was designed for it. Right? Could i run this tranny with the above setup?

Also what other transmissions do you guys recommend. Ive heard that an Integra cable tranny works well. What do you guys think?

LEGOLAS

 

hey since your gonna go with the C5 I thought this would be helpful on if you wanted to swap in the ITR cluster

http://www.angelfire.com/dc/oregonimport/gsr.html

 

Now I know that the speed limiter is something to be dealt with if you go with the JDM P73. But why would it make less power with this ECU than a USDM P73? After all, it is basically just an OBDI ECU with OBDII plugs.

 

As for running a PR3/PW0, I do not favor this approach, if for no other reason than the fact that you must go out and buy both the ECU and distributer. T^hese parts are not cheap or easy to find alone. In addition, you must pay the cost of chipping the ECU. It would be FAR cheaper just to wire up the JDM P73 that comes with the motor. And even a chipped P28 would be cheaper to run since you can use the stock ITR distributer. Also keep in mind that 1996+ distributers DON'T tend to give out like pre-1992 distributers do.

 

THATS RETARTRED . U can use ls injectors and a ls distributer if jdm non obd parts r unavailable The jdm parts and the ls parts r available all day on this website http://www.urbanracer.com . U can probobly get the injectors and distributer on here 4 under $250. I even have the injectors here ill take $100. 4 em

 

well, i am going pr3 with obd0 on my b18c (jdm) and it can work but you gotta hunt down a few parts and hybridize it to work...

 

But using the B18C distributer and injectors that came with the motor costs NOTHING. That beats $250 any day. Also, the newer distributers are MUCH less likely to crap out. And all you have to do is a little more wiring. Is this such a hefty cost to bear?