The COMPLETE 92-00 Civic Owners Engine Swapping Guide!!

[jcrx]

Originally posted by sparq
I find irony in that...

It is kind of ironic, too bad flow charts have been reproduced by other companies with the same results.

[92' civic sedan]

alright, my 92' civic's engine has too many miles on it and its shot. I want to swap it.all of those engines up there help very much but i can get an 89' prelude engine which numbers are i think B20A5 for almost nothing from a friend. could I swap the engine out of the prelude and put it in the civic?

[jcrx]

Originally posted by 92' civic sedan
alright, my 92' civic's engine has too many miles on it and its shot. I want to swap it.all of those engines up there help very much but i can get an 89' prelude engine which numbers are i think B20A5 for almost nothing from a friend. could I swap the engine out of the prelude and put it in the civic?

Monumental waste of time, wrong OBD, would need a custom mount kit, shiftlinkage, axles, I wouldn't waste the time, even if the motor was free. Apples and Oranges.

[92' civic sedan]

alright thanks. I just recieved another candidate for the engine replacement as a JDM D15B VTEC...are there any special guidlines to follow in installing this engine beceause i dont remember seeing it in the swapping guide?

[jcrx]

Much better, since it is a D series, it is a straight drop, provided it is a 92-95 motor. All you really need to put it in is the long block, and you may need to wire vtec depending on what model you have now.

[ivebenjamin]

__________________________________________________ __________
There are really two choices for dealing the B20 as far as power goes. You could leave it as is and simply swap the head for B16 model. The cylinder head on the B20B model (particularly the tall intake manifold) doesn't clear the hoodline of the civic, which is ok since the B16 head swap will add Vtec abilities and increased power. OR you could go about what is called a CR-VTEC conversion. This is what I consider to be the ultimate engine build-up for civics’. You can check out www.crvtec.com for details. The first thing you need to know about B-series engine (B18, B16, B20) is that they all have, for the most part, interchangeable engine parts. So the CRVTEC buildup basically consists of taking the best parts of all the engines and making an unprecedented Frankenstein of motor that has a perfect Rod to Stroke ratio of near 1.75 which allows for great naturally aspirated performance (A HUGE redline) or the ability to turbocharge the engine to very large proportions without worrying about engine stability. It is unfortunately rather expensive but this setup will take you anywhere you want to go. The simple B20/B16 swap costs as follows: $1000-$1500 for the B20 short block, +/- $600 for the B16 head, +/- $300 for the B16 ECU + tranny and other small parts. The price for the CR/VTEC could be calculated on the aforementioned site.
__________________________________________________ __________


You said the whole b20 engine wouldn't clear the hood in a civic, so you would need to get a b16 head anyway. Well would a b18 head clear the hood as well?

Also, when you talk about swapping a b16, is it a b16b or just a b16(a1,2,or 3)?

I mean what i'm trying to figure out is what would be the best, next to best, and so on, with any b series, for a head swap on a b20. Also price ranges would help too. Thanks

[jcrx]

You could leave it as is and simply swap the head for B16 model.

You can NOT just swap the head, you have to tap and run external oil lines.

which is ok since the B16 head swap will add Vtec abilities and increased power. OR you could go about what is called a CR-VTEC conversion.

Swapping a B16 or other vtec head on to a CRV is a CRvtec.

So the CRVTEC buildup basically consists of taking the best parts of all the engines and making an unprecedented Frankenstein of motor that has a perfect Rod to Stroke ratio of near 1.75

Um, no

The simple B20/B16 swap costs as follows: $1000-$1500 for the B20 short block, +/- $600 for the B16 head, +/- $300 for the B16 ECU + tranny and other small parts. The price for the CR/VTEC could be calculated on the aforementioned site.

If you want it to last longer than the first time you hammer it, it is going to cost quite a bit more than this.

You can check out www.crvtec.com for details.

crvtec.com is search engine, .www.b20vtec.com is the right website.

[VTWanderer07]

so does anyone know any good places online to get an engine? Or does anyone know any shops in the va/md area?

[Grallim]

Back to everyone's talk about rod ratio...I want to build a b18b but everyone talks about the bad rod ratio with the b18's being all around 1.54/1.58. So why, if 1.75 is so important, are those guys running 10's by building b18's and not messing with the rod ratio..or are they? They claim to be running the motors around the 10,000 rpm range and you know they are pushing probably 25 pounds, but they dont seem to be having a problem. I am just curious if the .2 liters is worth the stress of the bad rod ratio, or just going with a b16A2 is better. I am not talking about just buildiing a 200hp daily driver, so the motor is going to be going through some abuse. Any advice is appreciated...thanks

[CivicJunky]

Damn that was a sweet post! I just got a 94 civic that I want to tune. How do I find out which engine I have?

[NuTuner]

Dude you are soooooooo my new motor GOD. Sometimes getting questions answered is hard. You go out where everyone is shooting at questions with a .22 and intorduce birdshot

I think its great what your doing, and I commend you. I'm also curious if there is any chace I could get an even more complete version ? Or somehow encourage you to release more 'episodes' if you will, about other areas of tuning. Intake, exhaust, building up the engine, the right turbo kit etc. That would be really really cool.

Thanks for listening.

[JDMDA9]

I didn't find anything in this post about which motor mounts to use, which is the info I need.

I have a second gen B16A going into a '94 VX Civic. Which mounts can I reuse and exactly which other Del Sol VTEC or DC2 Integra mounts and brackets do I use? Honda part numbers would be greatly appreciated.

Hasport's are out of the question...

[94tegRS]

dont quote me, but at vtr a guy but a B18C in his hatch and he told me he used the stock b series mounts. so if you got a swap, you should have the mounts you need, or you can get them from the del sol vtec. but my friends B16 in his integra(2nd) gen has just the uppers, the rear and one in the front center as mine has 2 in the fron, one on either side, but it could be they switched the mount style from cable to hydro equipped cars.

[ShwedishFish]

sorry for the stupid question but what does the R/S in R/S ratio stand for?

[94tegRS]

rod to stroke ratio, 1.75 is the best for lots of revs, I tihnk it is cuz most of the rods momentum pushes the piston up and not against cylinder walls or something, but i know 1.75 is best, B16a is 1.74, the B16B is too probably.