For those that B.A.R. your REX with a B18C5 motor, what exhaust manifold and CAT did you used?

 

That's on OBD2 motor and is very hard if not impossible to get BAR'd in a CRX. You will need to convert everything to run OBD2.

But to answer your question, you need the exhaust manifold and CAT for a 1997 USDM Integra Type R.

They are almost approving my JDM B18C in my rex. I just need to fix a kinked PVC hose and advance the timing by 2 degrees to stock. And all this is after 3 trials. The good thing is that it's all free until you passed. $8 for the sticker only.

 

You are the savior I have been looking for. Can you document erverything that you have done so far for this process. Detailed part list, pictures and written instruction explaining step by step. I'll pay you some money for your time. I have both USDM B18c5 and JDM B18C so that is not a problem.

Just so that I don't scare you away. Here is what I already have as far as electrical parts are concerned:
-JDM ITR B18C
-ITR chipped P28
-OBD0-OBD1 harness
-Modified engine harness
All the mechanical parts for the swap I already have.

Thanks in advance,
Chris

 

Can I use a JDM ITR '96 exhaust manifold for the B.A.R.? This the cast iron one, not the later model aftermarket looking one.

 

To clarify, my JDM B18C was for a GSR, not a Type R.

If you really want, I guess you can put a USDM GSR head on there to BAR it as a GSR then put everything else back after the fact.

I can give you a list of how to BAR a b18C GSR, but not a Type R.

Good luck.

 

man you guys have it rough in Cali

 

I don't think you can bar with a chipped p28, correct me if I'm wrong. But if your interested I have a usdm type r header, lmk.

 

if its a b18c5, good luck!! if its a jdm b18c then you might and i mean MIGHT get lucky tell them its a gsr, get a skunk2 intake manifold cause the jdm won't work and even if you modded it to work, it still looks nothing like a gsr manifold. do a massive tune up get a fresh cat and hope the tech doesn't see that the head says p73 instead of p72 and that he won't notice the casting year either. im sure theres quite a bit i missed but you got bigger things to worry about.

LOL just read that you also have jdm b18c so use that, don't waste your time with the c5, a massive headache and loss of $$$$ trying to make that 100% legal. run 94-95 gsr exhaust manifold and cat, might be able to get away with a ls exhaust manifold but don't take my word for it. you'll need a 94-95 p72 ecu also. im putting a b18c1 w/usdm itr OS pistons, endyn ported head, skunk2 mani, and jg/edelbrock carb legal headers. smogs due in june so i got a bit of trial and error time lol. gl bro

 

Yea...Cali is the land where "You have to pay..to play"

 

Once I find out that I can use it to B.A.R. the REX, I'll take you up on that. Thanks.

 

cali ftmfl! i used to live there, but that was before i started driving, thank God!!

 

I understand what you are saying and thanks for all the tips. they realy help. One question though. Why cann't I B.A.R. with a JDM ITR motor that was converted to OBD1?

 

If you already have a list on hand, please shoot it my way. If not, don't waste your time yet because I may just stick to my original idea of keeping this DD REX stock and continue building my other race REX. Thanks a bunch.

 

You can't bar it as OBD1 because the US equivalent Type R is only available after 1997, which makes it OBD2.

In order to pass BAR, the motor has to retain its original OBD version.

OBD2 has more sensors and wiring, which makes it more difficult. If you have the time and resource, it is possible, but I have yet to see anyone with a BAR'd Type R in non OBD2 vehicle. I believe you also have to swap the fuel tank. This is the reason why not many people are able to BAR a K series swap. Eventually people will get it down, but not at the moment.

To pass with a JDM B18C GSR motor, here's what I need to have:
1. USDM GSR intake manifold from 94-95 GSR. The 96-up manifold won't work because the EVAP purge sensor is different and throttle body is different, not to mention it's OBD2. JDM manifold won't work because it doesn't have the EVAP sensor.
2. USDM GSR P72 ECU. Make sure it's from OBD1. The serial number ends with ..A1 if I remember correctly. P28 or other chipped ECU's won't pass. You can put them on after you got your sticker, but not for the inspection. The ref spent 15 minutes looking at the cover on my ECU and checked every wire.
3. Exhaust manifold is not a big issue, I keep my stock JDM manifold with a heat shield on top. They didn't even look under it.
4. A proper CAT converter. It must have a bung for the 4-wire O2 sensor on the CAT itself. I got the Carsound or Catco one from a muffler shop. As long as it's not a high flow cat, you'll be Ok.
5. All vacuum hoses should be hooke up per factory vacuum diagram. They'll trace every hose. And make sure they are not cracked or kinked. They sent me home for that.
6. Check your timing. It must be between 14 to 18 TDBC.
7. Hopefully your engine runs clean enough to pass the sniffer test.
8. Lastly, they'll check your gas tank and cap for air leak since our car is pre 1995.

Fail any of the above and you are sent packing. Don't expect them to be understanding either. They're there and are paid to find your mistakes. In the end, I think it's worthwhile considering all the money and time you spent on your car. You don't want a cop to pull you over, pop the hood and impound your car.

 

Thank you very much for list. It really cleared up alots of my confusion. One more question. On #5, which factory model diagram you are refering to: The CRX or the '94-'95 Integra?

************************************************** ******************
5. All vacuum hoses should be hooke up per factory vacuum diagram. They'll trace every hose.
************************************************** ******************
I assuming it is for the '94-'95 Integra.

 

yeah it will be for the 94-95 gsr. basically they want to pop the hood and be looking at a 94-95 gsr with EVERYTHING hooked up correctly. Ldo very nice list!!!

 

Thank you for clear that up for me. Basically, if I want to swap in a B18c5, I will have to find a donor caR and swap most of the engine bay parts over including wiring harness, ECU. But, hopefully, not the gas tank.

 

unfortunately, you would most likely have to swap the gas tank as the obdII has more sensors/emission stuff. there's a guy on here that bar'd a k20a2 in a eg hatch, basically said was way more trouble then it was worth. he got a entire rsx for like 3k though so it wasn't as bad, but had to cut out the floor for the tank to fit.

for got to mention, i don't think you allowed to mod the gas tank in an way to retrofit odbII stuff on/in it. hope this helps!

 

I got a JDM GSR pass BAR in an EK the first time, similar but different. this is what I did:

1. Get USDM headers and Intake mani with all sensors (research this)
2. USDM OBD2 ECU (go to ff-squad.net technet to research how to bypass a few sensors like the fuel tank sensor the other guy was mentioning, bypass the CKF sensor as well next to oil pump).
3. USDM OBD2 Catalytic converter (must be for use only in cali, i used a 99 civic ex cat)
4. Make sure no CEL, make sure all sensors are plugged in, especially the evap/purge valve and charcoal canister (research this)
5. Good luck!

I passed even with bypassed sensors. Just use electric tape to make everything look OEM. It would help to use a USDM intake as well. Mine was zip tied in the engine bay, still passed. PM me if you really need help.