since u guys have been thru the process of swapping in a b20 and are now driving on it. from beginning to end… what do u wish u did differently…do some wish they wouldve used a bored & sleeved b18 or are u happy w/ur b20… and other questions or misnomers u guys might wanna settle, even stories to share. oh and lastly…list ur set ups…place specs (and times if u gott’em ) @ the bottom of ur post…thanks.
-soon 2 be 2.0 bam.
(experienced peeps only) T.I.A.
I am very pleased with my B20Z. More torque and it’s a newer engine so no leaks… etc. like the old b18a. Fairly cheap, cause you can use all your b18a stuff (ecu, dist… etc.). It’s a blast to drive around town and even in autox. Only thing i don’t like about it is, there isn’t much top end like the b18a.
Dynoed at 128 whp & 124 tq with I/E.
I am very pleased with my 96 b20b… the only thing i wish i did before swap it in was be able build it up a bit before hand. Im not stressing it too much though… I really like the torque it has… like jonster said the top end isnt the greatest but it still pulls up to redline. I havent had a chance to get times or dyno numbers though… one of these days! 
ummm what else to say… It is a very good motor for the price IMO…
Oh ya… it sounds good to with I/H… my exhaust blows so it sounds like **** from behind… :bored:
Dev
so ur saying a bored and sleeved b18 would give better top end?
Originally posted by BAM
so ur saying a bored and sleeved b18 would give better top end?
Nope, a vtec head would give you more top end hehe. The stock cams aren’t designed to make power up top so even if you sleeve the b18 and you have stock cams, your top end will pretty much be the same or at least the power curve would be similar.
yeah thats what i thought…so if u guys are complaining about high end, wouldnt buying the correct cam fix that? for arguements sake and w/out getting into specifics, we’re pretty much talking about the same type of tuning right…the only diff is the displacement…if so cool…i just need to be clear on things. my future goal is to have a fully built and sleeved b18. a nice small sized turbo…im not going trendy and pimpin a t3t4… im sorry… im not that furious… :burnout:
Yes i love my b20…I had fully built my b18 and i wasn’t as happy with that as i am with the b20…Yes it could use some good cams and a little head work and i think i would be content with it…It is a great motor in general…I personally think the best stock to stock motor for our car…Once again this is just what i personally think…I would get the motor and buy a ported LS head and get a match ported intake manifold and TB…Then get some Crower cams and valve spring…Call it a day…I think with that , you will be more then happy…If you got any questions about it just let me know…
leeo
Originally posted by BAM
…im not going trendy and pimpin a t3t4… im sorry… im not that furious… :burnout:
your telling us that someone who built their motor to accept a snail of that size and utilizing it is “trendy”? cmon dude, think before you blurt out stuff like that.
Stew 
Well, for me i regretted swapping off the b20 intake mani for the b18a one. I was pretty dissapointed with the performance of the swap overall, stock full exhaust didn’t help much either, tho, i’m sure. I only pulled a 16.48 at best at about 83mph, which was only average for stockish g2’s that day. Granted if i could have gotten some traction out of the gates i would have hit 15’s, but same for the other g2’s there that day i think.
If you think about it tho, what’s the point of more displacement if your not letting anymore air in and out than a stock b18a setup:down:
looky here… 
… at the difference btw the ports on the two mani’s. And they ARE indicative of their respective head intake ports.
Now that i’ve got the b20 mani back on, i’ve got some better low/mid grunt, but its still not made for high end.
Looky here at the tork curve drop of after 5k on this “boltons” b20z
http://www.autocrossing.com/misc/dynocharts/b20z-integra.gif
and its pulling 139whp!!, imagine the potential of this motor with some cams? Well, there’s one there with 404’s and the skunk2 mani pulling 159.
Some dudes were raving about just the skunk2 intake mani for this engine tho. thats definately on my future “to get” list after listening to them
d
Originally posted by kidenrge
[B]your telling us that someone who built their motor to accept a snail of that size and utilizing it is “trendy”? cmon dude, think before you blurt out stuff like that.
Stew [/B]
no…im saying that most of these new board members or new tuners that come on here 1st bust out w/ “yeah yeah…im gonna have a fully built blah blah blah…and a t3t4 turbo…” its like they only know that 1 size for the turbo…walk up to them and ask them what a snail is and all u’ll see is the :loser: come out of them… if ur set up is complimented by the t3t4 ,by all means go ahead, im not knocking that turbo set up…just the way people refer to a t3t4 as a general thing…
anyway…
any b20 w/a vtec head on here?? comments? questions?? complaints???
Originally posted by BAM
no…im saying that most of these new board members or new tuners that come on here 1st bust out w/ “yeah yeah…im gonna have a fully built blah blah blah…and a t3t4 turbo…” its like they only know that 1 size for the turbo…walk up to them and ask them what a snail is and all u’ll see is the :loser: come out of them…
my bad, yeah I do know exactly what your talking about. my misunderstanding.
Stew
im braggin’ the t3 .60 trim turbo on a b18a 
my jdm b20b, no complaints, only compliments. The power is so consistant throughout, and kicks in low rpm with the great torque. It’s a great daily driver, and is awsome around turns. It lacks the topend power kick that I got with my crower valvetrain’d LS motor, but I believe the lowend power makes up for it big time. Not the greatest for drag (like the vtec motors) but GREAT for autoxing (haven’t done autox but I do a lot of mountain “driving”) and just very powerful. I’ve raced a couple gsr’s and b16’s, and have come out with wins in the 1/4 with all my boltons. (setup listed below). The motor runs so smoothly and provides great power stock. $750 for the entire thing was a great price, no hassle, quick and ez. And hey, you can always build it up for CRVTEC or use the low compression that it comes in for turbo. But I’m happy with it stock. Though I would still crave a little more power. If I did it again for more drag reasons I would have probably built it CRVTEC.
The power feels sort of like this:
A lot of power lowend, not much power around 4krpm, but right after 5.5 it really gives an extra little kick. I’ve experienced this over and over again, but not sure exactly what it is. It’s not a huge kick, the intensity is something like the kick you get from a SOHC VTEC D16 or something. (i was told at Import Builders that it was due to my AEM CAI??!?!?)
But I digress, I think you’re asking if we’re happy with what we’ve done to it. But i guess i can emphasize the point that even with it stock, it’s a great motor, and I’m happy enough… for the time being… overall MUCH better than my LS with built valvetrain. which dynod around 142whp and 134ft-lb torque
JDM B20B
LS IM
LS Tranny
DC Sport Header
AEM CAI, Pullies, FPR
Carsound Cat
DC Sport Catback Exhaust
i love my b20 it kicks alot harder than a LS motor .and it was alot cheaper than putting a GSR .when i would race mustangs with my LS i would always start falling behind at 3rd gear,but with this b20 i raced a 5.0 automatic mustang ,and was side by side the whole time .even did it with my heavy ass 18’s on. i got a hold of some factory GSR rims to race with ,so ill let yall know my times when i bring to the track . my mods are: jdm b20b , dc sports header , injen cold air intake , magnacor spark plug wires, ngk spark plugs , full greddy exhaust system , act street/strip clutch . i really want to add vtec so i can get the top end that im missing out on ,so if anybody has a crvtec ,let me know what yall like/dislike about it ,do yall think it could be a reliable motor ,or sould it be left as a stricly racing motor.
Does anyone have higher compression pistons in their B20’s? From what I’ve heard the regular pistons from B16A’s and B18C’s won’t work on B20’s like they do on B18A’s. What options are available to increase the compression ratio on a B20?
Thanks!
They won’t because they are not as big as round. You could mill the head to raise compression, that and a new headgasket.
Stew 
The b20 runs great even on a sedan. It’s fun to drive definitely. I can’t wait to see what it will do in the 2 doors.
As straight forward as the swap is, I don’t think I regret about anything with it. Of the 2 I ordered, one looks like it barely has 10k miles or less on it. The plenum and the throttle body butterfly don’t even have any carbon build up.
damn you guys are making me want to get a b20 before a turbo…hhmm…too many damn choices!
Well, after a track event with my B20 LS, i can say that this motor can hold it’s own. We went to willow springs and the track is short, has lots of turns and some up and down hills. Me and nic_17 were going at it and we’re almost even. He has a stock 1st gen b16(h/e/c) and i have a stock b20z (i/h/e) both of us had grinding 3rd gears too :D.
A friend of mine has a 95 Civic hatch and he states that his B20 is the best setup out of everything he has had ( B16a, B18c, B18a). He says that the car is faster than it ever was… kinda along the same lines as you guys.
My question is, he told me I could just take my Gude head package (B18a) and swap it onto a B20 block. I told him there’s probably more to it, but he insisted there isn’t. Who’s right?
-Nick