MrSmith

Im looking into possibly getting a 4G hatch and going hybrid. I want a cheap swap and evertually turbo, so I was looking at the B18B. Questions: the B18B has a hydro tranny if im not mistaken, would that be a problem? Is there enough room in the engine bay to turbo a b18b? Or do you need to make some modifications? Anyone that has done this before? And one more question, does the 3G integ suspension bolt up just like on the 5G civic? Thanks.

Redline130

If you are going to be swapping into a 4G then get a B18A instead. The wiring will be easier and B18A's are cheaper than the B's. Also, the B18A has a cable tranny. There should be enough room to turbo the motor. But you will probably have to remove the A/C fan (if there is one) and you may need to trim the crossmember. As for the suspension, 2G Teg suspension parts bolt up, but not too sure about the fitment of 3G stuff. HTH.

cyber13

dustin

B18B is the same motor. You can use any b series transmission on any b series block.

Dustin

hybridmike

the B and A's are not the same there is a 2hp differance , maybe a computer mapping advantage? so the maybe simmilar , since its a 4th Gen , make surn yopu get a cable trany,89-91 came with a YS1 tranny (cable)

dustin

I was saying the wiring is the exact same, except you do not need to hook up that temp sensor on the back of the block near the oil press switch on the B18B. The block is almost identical, all the dimensions are the same and they take the same parts. The cams on the B18B motors are different along with the intake manifold to net some extra power. B18A and B18B are effectively the same thing.

Dustin

slowerthanu

The B18B has slightly different ports along with longer runners on the intake manifold and ECU mapping char.

Jared

Incorrect on tranny. 90-93 Integra all came with cable tranny, 90-91 was S1, A1, Y1, 92-93 were all stamped YS1.

Doodoo

Advantage: Dustin. These motors are the same thing. You got the older version (A) and the newer (B).

I prefer the B18B, I have a vacuum line phobia and the CRX throttle body is a mess!! The B18B was very easy in that aspect. As long as you got a Si wiring is easy.

As for turbo, there is room. Space depends on the mount kit and orientation of your turbo. Lots and lots of factors...Don't rush it, trust me.

MrSmith

Thanks for the replies. I have been doing my research on honda hybrid.... I would need a 90-93 swap, but i rather get a newer motor with less miles on it. If i do get a b18b i would have to go with the 90-93 tranny and ecu (like you guys said ) Sounds too complicated Maybe i'll just save a little more and buy an eg

TypeR0207

$2500 you've got a B16A 1st gen. in the car with new i/h and all the parts you would need to do it (mount kit, linkage, axles, wiring, etc.). That's pretty cheap ..... (working on getting it myself right now).

And if you get the right kit, a turbo will fit.

gotatight92si

i don't know why noone believes me/listens to me about this. don't go with a JDM b16 unless you wanna screw your engine up cuz you can't get the minimum octane rating (at least 95+) granted, you *CAN* run it off a lower octane (i know tons of people who do), you're not going to end up with 160hp because the engine isn't at full potential, and you'd be surprised at what your internals look like after just a few thousand miles runnin with a lower octane....even with the knock sensor. if at all possible, stay with a USDM engine....like the b18a/b. just my two cents. but to each his own....i know how popular the b16 is, but i'm just tryin to give people a lil warning. this is the reason i decided against a JDM engine. also, don't get an EG....everybody and their mom has an EG......stay old school


[Modified by gotatight92si, 10:12 PM 10/8/2001]

Blown90hatcH

gatatight: I am gonna have to disagree on this one. My first ever swap was a JDM B16A into my EF...cheap intake, cheap exhaust and dc header ran 14.4-14.5 all day long on bald street tires. I have done around 15 JDM B16A 1st gen swaps...all running on 93Octane or less. I dont really see your theory on this one. You are not going to mess up your engine in any way. I wouldnt run 87 octane in it. Dont be worried about running 91 octane in your JDM motor. The car is still gonna run like a champ. Yes....it will run better on 110 octane...but not that much better on a stock car.

Stay EF on the car.


[Modified by Blown90hatcH, 2:28 PM 10/8/2001]

EVOCELICA

I have to agree with blown90 I have been running a JDM B16 change over in my EF for quite some time now and I have not ever had a problem with it. Also as for the B18a and the B18b go they are not exactly the same motor they are very similar but they have slight differences, like the rods and the cam profiles to name a few. For the money I would have to go with a B16 swap to be honest.

gotatight92si

lol....i knew someone was going to tell me this. all i'm saying is that i'm not going to even try going with a JDM engine. the manal has the minimum octane rating at at least 95...which is like that for reason. and it's also higher than you can get here readily in the US......but granted, you two are correct....it'll run most certainly, and it might run well....but after seeing some internals from someone running lower than the recommended octane, all i'm saying is that i don't want to do that in my own car. i know people are going to keep doing it, because like you said, it's prolly the best bang for the buck in an EF...but for me, i'll stay USDM.

Blown90hatcH

Question? Gotatight....You are saying that the B16a needs a higher octane than the ITR? Think about that. The B16 is 10.2 compression for the 1st gen. The ITR is 10.8...why do they recommend 93 in the ITR manual? Where did you get the JDM manual from? I want to see it.

gotatight92si

dude...you don't gotta get mad. i don't HAVE the manual...i saw a translation of one on a japanese website. i had to download a system to translate jap pages, and now i can read them. i mean, granted, i might be wrong.....you serve a good point. i'm just telling you what i have read/seen.

Blown90hatcH

nono...I am cool. I was just hoping that you had the manual from a JDM EF. That would be cool.

dustin

Well, you are using the RON octane number. In america, fuels are rated with RON+MON/2

95 octane RON is equivalent to 91 octane RON+MON/2 in most scenarios.

Either way, the JDM motors run fine on our gasoline. People run 12:1+ static compression ratios on 91 octane with stock timing and NO detonation.

Dustin

gotatight92si

okay....man...i'm a moron. i apologize if i seemed like a jerk. so could i really run 12.1:1 c/r on like say 93 octane safely? before i "decided" on a USDM engine, i had a plan to make a ~190 whp b16 engine, but it was going to put the c/r up there at around 12.1:1....and i was told/assumed/mistook some info that 93 octane would be waaaaaaay too low to run that setup. could i safely do it on 93 octane? if i can, this might change my plans as far as a b18c swap....i might consider b16 afterall.