b18a... look here for... JUST LOOK..

[SmoovSol]

ok My fellow honda brethrans.... a friend has a 1990 b18a motor with a 92 ecu pr4 I believe it is. He is putting it into an 88 crx si. He doesnt have the harness from the ecu to the firewall cause the person he got the crx off of took it for some strange reason. Which harness will hook the 92 ecu to the 90 b18a motor? anything need to be modified? what type of harness? thanks alot fellaz, happy posting...

[CRX-Hybrid]

Hey everyone, I am tha person wit tha 88 CRx and I am having a lil bit of a problem.... I have the PR4 ECU and when I took tha head off of tha b18 tha pistons said PR4 also.... Im not exactly sure what that means but hey.... Well Im not exactly sure what to do about tha wiring... I was told by some guy that you can use tha CRX harness to plug in2 tha pr4 ecu so I went out and bought a MPFI CRX one cuz i thougth it would be easier to hook it up to tha B18.... I went to put it in today and im having alot of wiring differences like things not plugging in, not matching up.... Stuff like that.... I was wondering if I have to use a different wiring harness or make some adjustments to tha harness or w/e to get it to work.... I thought tha b18 swap was supposed to be semi easy and all im getting is headachs.... Im just hoping you guys can help me out... Thanx.......... 1

[H4Bangin]

i got a harness off of my 90 integra if u need it make me an offer

[TrailerParkJake]

are you sure the motor is off a 90 teg? It could be an obd1 integra motor. the 92 pr4 ecu is obd1, so its not going to plug right up to the crx wiring harness without an adapter or lots of rewiring. if thats what youre having problems with look for a 90-91 pr4 ecu from a teg

[91zc]

What color are the plastic plugs on the distributor? Also what is the engine code stamped on the block?

[CRX-Hybrid]

i went to tha junkyard and took a complete wiring harness off of a crx wit MPFI, HF I belive becuz it had no sunroof.... It plugs right into tha PR4 ecu. Its just tha im having alot shit that not connecting like tha Injector resistor box, and extra shit..... Tha colors to tha plugs r like a seethru yellowish white color.... I heard those are nonOBD.... Is this the right harness and everything????

[Jmunk]

I emailed you and told you that you need the integra harness. Yeah any 88-91 civic/crx ecu will plug into it but that dosen't mean that it's the right one. I get aggravated when i tell people what they need to do a swap that i have done over 10 times in a few months and they don't take any of my advice and they wonder why things don't work out.

[CRX-Hybrid]

Ok well I just got your email today and I just thougth that a 90 Integra harness wouldnt fit into all my accessories ie, dash, radio, ect.... I had this harness that Ive had way b4 I even emailed you. Do I need to mix and match harnesses or w/e...? Im not sure who your refering 2 about getting you mad and shit, or if it was just a generalized comment. But newayz thanx for you help......

[Jmunk]

The integra works fine with everything. All you need to do it run it from the ECU through the firewall and plug and play. Everything fits fin but you need a 90-91 INTEGRA harness. I'm guess that you have the motor part of the harness so all you need it the from the firewall to the ECU.

[CRX-Hybrid]

Thanx man, I was just wondering if everything would work... I heard if you use the civic ecu or w/e that the redline would b 7200 rpm and would have more kick.... Is this tru??? Thanx for yallz help once again...

[Jmunk]

I was the one that told you about using the Civic ECU, the 91 si is the best but a 90 will work just as good. The integra is set at 6800 vs the 90 or 91 Si that has 7200. The fuel and ignition curves are a little different but not that much. The B18a is good for pure torque. I could shift into second at like 6000 rpm and spin goin into second for about 30 feet with 17's on. After a while with that motor you will want to go faster and thats where you get fun and put a B16a head on it and make it a LS/VTEC, thats where the power is at, you get good torque and horsepower number and you gain the beauty of VTEC and all sorts of aftermarket support. Thats goin to be a project of mine in the near future. Or you could drop in a B16a for cheap because all you would need is the motor b/c you already have the tranny mounts and tranny but i would suggest getting a Civic Si tranny, those kick ass, with that tranny you run through the first three gears quick and you have a nie fourth and fifth gear to run down the highway in. I have too many nice combinations, and not enough cars to keep them in.

[SmoovSol]

Originally posted by Jmunk
I was the one that told you about using the Civic ECU, the 91 si is the best but a 90 will work just as good. The integra is set at 6800 vs the 90 or 91 Si that has 7200. The fuel and ignition curves are a little different but not that much. The B18a is good for pure torque. I could shift into second at like 6000 rpm and spin goin into second for about 30 feet with 17's on. After a while with that motor you will want to go faster and thats where you get fun and put a B16a head on it and make it a LS/VTEC, thats where the power is at, you get good torque and horsepower number and you gain the beauty of VTEC and all sorts of aftermarket support. Thats goin to be a project of mine in the near future. Or you could drop in a B16a for cheap because all you would need is the motor b/c you already have the tranny mounts and tranny but i would suggest getting a Civic Si tranny, those kick ass, with that tranny you run through the first three gears quick and you have a nie fourth and fifth gear to run down the highway in. I have too many nice combinations, and not enough cars to keep them in.

Im sorry I gotta put you out like this dawg but you dont know jack shiat about nuttin. Why dont you go to this website first of all to clear up the 88-91 redline issue...
http://tech.hybridgarage.com/tech/specs.htm

Second off you aint got but about 125lbs torque and its gonna take alot more then that to spin a 17" rim 30 feet in second gear pallo..
What u wouldnt know is that putting that head on there and revving up that his is a VERY bad r/s ratio... you know what that is? I argue wit my boy on that and its hybrids specialty so ill let him get in ya bout that.
What after market support? any b series part is interchangable last time i checked... and you got it twisted fool u want to go through the damn gears as fast as possible in the 1/4 mile. Its the gsr and si tranny that go through 1st 2nd and 3rd the fastest and thats why people like em. those fast as 10 second cars all have geared down trannys for quick speed.. Why dont u stick to reading for a while, my boy is on here trying to get some info about something and he gets a reply from someone who has absolutely no idea what he is talkin about. He is lookin for advice not things that are gonna set him back. You CANNOT use a 91 harness on a 92 motor cause the distributor is different and its obd 1. I dont mean to be so rude but let someone who knows what there talkin about reply man, otherwise not many people gonna like the info u spittin....

[civickiller]

first smoovsol, why you gotta dawg on everyone when the info you give isnt even correct ?
hey smoovsol, i am still calling out that challenge to you to find one thing that i said that was wrong. ive told you this 3 times already, hmm i guess you just cant find anything

i think he was talking more about rev limiter than redline, alot of people get that confused.

heres where your wrong smoov, the torque of a b18a is 121, not 125.

as for lsvtec, i still argue with everyone that if you do a lsvtec and leave your bottom end stock, then dont rev it over 7000. contrary to popular belief not every b series part is interchangable, most are but not every single part. smoov i think he was talking about the si tranny when he was tlaking about flying it through each gear. oh and alot of 10 second racers use ls trannys for the taller gearing because the top speed of the b16a isnt there, 10 second racers tend to top out the b16a tranny. but since crxhybrid is swaping into a crx, he needs a cable tranny, so he has to use either the 90-93 integra tranny, or the jdm b16a1 cable tranny. you cannot use the gsr or si tranny because they are hydro trannys

also crx hybrid said he is running a 90 b18a so he would use the 90-91 intgera harness. crxhybrid also said that the crx hf harness he has, the pr4 ecu plugs right into it, that would make the pr4 ecu he has a obd0 ecu which is the ecu you need to run the 90-91 b18a because they are also obd0. you are correct when you say you cannot use a90 integra harness with a 92 motor but what jmunk said was correct based on the info that was given to him by you and crxhybrid, so what jmunk said is correct. smoov plz go up and read everypost good, and look who posted what, you yourself said a 90 b18a so we all tell you to run a 90-91 integra harness based on what you said but then you say its a 92, so make up your mind.

[Jmunk]

First off like any other project if you don't do the LS/VTEC swap corrcet than yeah your goin to have a horrible r/s ratio but it's not as bad as what everyone makes it out to be. The B16a is the only honda motor with an almost perfect r/s ratio. I have swapped plenty of b18a's and i know how hard you can push them. I have run them up to 9k many many on stock internals and no problems. Like any honda motor their tight but there is a limit on them and you just have to be ready for the consequence of it.

[civickiller]

if you put a b16a head on a ls for lsvtec. thats not gonnna change the ls rod ratio, so the ls will still have that bad rod ratio. again thats why i say not to rev your block over 7 grand on a stock ls block. second if you are running stock internals then why are you revving it up to 9 grand. you know the redline that honda has set for that motor is the optimum shift point for that motor. if you rev it higher than that, you are just losing power.