unlike the rest of the honda line-up equipped with a b-series motor, these things don't quite play nice... almost nothing is interchangeable...
many people now have had decent luck turboing the stock motor... i've had first hand experience with a turbo 3g, though it wasn't on my car, it's quite a bit of work, but its definately worth it...
there have also been a few h22 swaps, and i believe another website currently has a group buy in place for a mount kit, but i haven't read any details on that...
why is this?? i am curious in swapping a type r in one of these as a project :/ not sure if the money will be more than a new car :/ that's my only issue
i am willing to fork out 10g MAX just to get the engine in there..
good luck there is no room under the hood notice how the engine doenst sit up and down it leans back at a 14 degree angle thats so they could lower the hood line
one of the few cars that has a gangsta lean from the factory lol
dont doo ti why would you put 10k into a car that only goes for 2k
get a 90-93 integra and swap a type r into it even easyer and you can get a ls for about the same as a 3g.
another issue is that most of the b-series motors use a cable clutch and a shift rod, whereas the 3g uses a hydraulic clutch and cable linkage for the shifter... that, in addition to the engine angle, is why the larger h22 will fit a whole lot easier than the smaller b16/18 etc...
i don't think there is anything that qualifies as 'easy of changing over'.. even the jdm swap there were enough annoying things
I think the h22 will yield the best results.. I really hope you have a good body or I wouldn't bother.. for 10k, you could buy a decent mazda miata and put a turbo on that
The H22 is a LOT heavier than the stock motor and will yield a similar change in the balance/handling as it does in the EG/EK Civic. I wouldn't recommend it, especially considering the amount of work and VERY small amount of room in the engine bay.
If custom mounts are an option, I would go straight to a K series. There will be a LOT of work in that, though.
The B20A5 and B21A1 are crap motors, honestly. They were the first pass at the B series and Honda gave them a HORRIBLE rod/stroke ratio. You can get 200k miles out of one if you drive it easy, drive it hard and it's not going to last more than 150k. Less if not maintained well.
Turbo is an option, so is a VTEC head. I would personally build one from the ground up for turbo or VTEC, maybe even play with available B series cranks and other parts to reduce improve the rod/stroke (increase the rod length, maybe destroke) and go with as large a bore as you can. The motor is a decent platform, just not one that your average speed shop will know what to do with.
I don't think you can put a Vtec head on that motor it isn't in any way related to a b series if that is what you are suggesting. BTW I have a H22 EG6 and the balance isn't that bad it feels similar to my friends turbo GSR EG6(same setup excluding the engine).
by not related to other be series motors, we mean that parts don't swap back and forth with none or very little modification like the do for the rest of the series...
vtec head has apparantly been done, how well it worked i don't exactly remember... the guy at Ludespeed (Tom, i believe) had one on, iirc... requires a bit of machine work to match everything up...
the best swap is a h22 engine
if you wanna spend a lil bit more money go with ''rebuilding'' your motor for turbo setup.....
and get turbo.........
and last of all if you have a 88-89 ....then you need to convert to obd1..(trust me).... i know..
after yyour conversion.....you can use any vtec ecu that is a obd1.......and you e-manage is niether chrome,hondata s300 or aem ems..
i am planning on using aem ems on my 89 prelude which has been converted to obd1 and i had my o2 sensors disabled.....so no more check engine light hahahha....with a wide band map i had done in it...
So are any of you 3g'ers still around? Mine has been put back on the road unexpectedly and I feel like doing a little work here and there.. your input would help A LOT.
^Not too worried about the oil light. Yes that sounds horrible but we pulled it into the garage last night and looked over everything. It seems like everything checks out. No leaks, it's holding consistent pressure and it wasn't low on oil. I just had the head rebuilt (which is why it was taken off the road) and it doesnt even have 1,000 miles on it.
Let me back up, my original plan was to take the third gen off the road, buy a 5th gen as a DD and build the b20 for a turbo. Somewhere along the lines I got the tuner bug with the 5th gen and neglected the 3rd. Now I have little choice BUT to fix it up.
Sooooo basically, I'm just wondering how many people on here can help when it comes down to my "Holy crap, the 3rd gen just did..." thread because I see it nearing
On a side note, my mom is letting me have a bay in the garage to play with the h22. Scoooore, one good thing came out of the 5th gen being totaled huh?
I was thinking, turbo. Everyone says "ohh put the spare h22 in it!!" but eh.. Thats all I dreamed of in high school and now it doesn't interest me at all.
First things first, finish maintenance mods. -blah-
I would definitely worry about an oil light, unless you are just dying to do a swap. There are many internal issues that can cause an engine to die that will give no external warning until it's too late.
The oil pressure light isn't as much of an early warning indicator as it is of impending doom. It comes on with only a few psi which means the pump has stopped moving oil and is moving only air (or nothing). It doesn't take long to fry a motor with the light on (unless the switch or wiring is bad) and an increase in wear almost starts immediately.
No matter what you do, if you want it to be reliable then you will spend a lot of time or a lot of money. Everyone is keen on a turbo but then make critical mistakes like log manifolds, **** tuning, too much boost (for the mechanicals), or other engine-killing mistakes. I've been dying to do a VTEC conversion and swap for other B-motor internals. Anyone can turbo and there are plenty of examples of that. Same for H22 swaps.
Haven't seen a K swap yet- that would be pretty trick. Do a B20 to K20 swap.
^Not too worried about the oil light. Yes that sounds horrible but we pulled it into the garage last night and looked over everything. It seems like everything checks out. No leaks, it's holding consistent pressure and it wasn't low on oil. I just had the head rebuilt (which is why it was taken off the road) and it doesnt even have 1,000 miles on it.
Let me back up, my original plan was to take the third gen off the road, buy a 5th gen as a DD and build the b20 for a turbo. Somewhere along the lines I got the tuner bug with the 5th gen and neglected the 3rd. Now I have little choice BUT to fix it up.
Sooooo basically, I'm just wondering how many people on here can help when it comes down to my "Holy crap, the 3rd gen just did..." thread because I see it nearing
On a side note, my mom is letting me have a bay in the garage to play with the h22. Scoooore, one good thing came out of the 5th gen being totaled huh?
so what you are saying is that you totalled your 5th gen? with an h22 in it?
if soo i will take that motor out and drop it in the 3rd gen,and convert my 3rd gen to obd1, and change my dizzy on the h22 to a obd1 dizzy...
and then your set with some mounts from az, they are having a group buy at and axles as well , and you can use your old wire harness from the b20 on the h22....
after that get some conversion harness with jumpers on it from boomslang (obd0 to obd1 harness) and get any vtec ecu's from any 92 to 95 civics or integra and your set!!!!!! vtec power baby....
Won't hood clearence be an issue? I though the 3gen preludes were the first car with a true "gangster lean" don't the engines sit on an angle to accomodate the fast diving body line of the hood?
so what you are saying is that you totalled your 5th gen? with an h22 in it?
if soo i will take that motor out and drop it in the 3rd gen,and convert my 3rd gen to obd1, and change my dizzy on the h22 to a obd1 dizzy...
and then your set with some mounts from az, they are having a group buy at preludepower.com and axles as well , and you can use your old wire harness from the b20 on the h22....
after that get some conversion harness with jumpers on it from boomslang (obd0 to obd1 harness) and get any vtec ecu's from any 92 to 95 civics or integra and your set!!!!!! vtec power baby....
No thanks
Quote:
Originally Posted by MtangKlr
Won't hood clearence be an issue? I though the 3gen preludes were the first car with a true "gangster lean" don't the engines sit on an angle to accomodate the fast diving body line of the hood?
I guess I will find out soon enough. I have decided to go with the h22 swap in the 3rd gen. The b20 is just old and complicated. So much time and patience (which I do NOT have) would have to be put into it. I know the h22 will be a long project for me that I will be forced to take my time with but I feel I will have better results with an h22 as opposed to the b20. Thanks for your input guys (and Irene Irene). I'm sure I will be bugging the hell out of you soon enough!
I think hood clearance will be an issue, I think the 3g B20 leans the other way. Not to mention that's a shorter engine than the H22 IIRC, no matter what. I'm guessing someone makes a hood that it will work with, though. Worst case you do a custom scoop.
I don't think that hood clearance is an issue as much as oil pan clearance... The few H22 3rd's I've seen have used the stock hood, but the oil pan sat much lower than the B20 pan...
I've been ordering parts and plan on pulling the h22 from my totalled fifth gen as soon as the weather breaks. In the meantime, I'm fixing/replacing the suspension on the 3rd gen and removed all of the rust. Once the b20 is out it will go to the body shop for new paint
I'll try and take as many pix as possible. Thanks for the support guys. In about 2 months I'll probably be complaining about why you guys let me do this while pulling my hair out.
Thats all I dreamed of in high school and now it doesn't interest me at all. 
