A ? for B20 or LS

thanks first for people who answer this question..I am confused with these two. I would LIke what is people opinion about the LS/or B20..what is some good advantages about those??
sorry to bother but i would like to know which is good for CRX also for long run..after the swap they'll be some other mods..such as add Vtec to it or turbo to it..
thanks again people..

can anyone explaing to me what is this about
" You guys out there that want to build a b20, go get yourself an ls motor, it has the same crank, have it resleeved to 84 and you have a great b20 motor and stronger then a stock sleeve can ever be".

ok to start off with, i have fooled with both, the TQ on the b20b,z is insane because of the long stroke, but u have to sacrafice bad RS ratio, which inturn you cant rev high, but you realy wont need to, it also depends what this is goin into, cause you will experience alot of wheel spin, as far as reliability all stock motors are good, but more than likely you will be revin it us so go with a b18 its a great and very strong stock motor, and is excellent for boost, im building a ls/vtec which i would not recomend unless you know what your doin, because the RS ratio is 1.54 which is horrible, stock ls you will be lookin to run in the 15's depending on the car, and stock b20 be lookin to run any where from the 13.99 up to a low 15, as said i said depending on the car, if i were you id go ls completely rebuilt, forged internals and shoot a 100 direct port and be seein 12;s in a light car!!!!!!!!!!!

o yea im sellin a b18 long block also, 850 shipped

$850 shipped?
what year?

i have a 93 with 99 internals, and i also have a 97

whats best tranny and lsd for b20 turbo vtec

do you have b20z2?

have a b20z4 if your talking to me

you can install LSD in about any tranny, but as far as what tranny, j1=JDm short gears,y1,s1 and ys1 are ls and have relatively long gears, it depends on the tuning of your car and your power band,if you motors makes 300 peak HP at 63000rpm, you wouldnt wast a tranny that has you shifting at just say 6k cause your loosin HP, the same as is you dont want to shift out at 9k when your loosing HP, it also depends if you goin to daily drive,1/4 mile, or Interstate-top speed, if you want high speeds go with one of the y,s,or ys1 trannys they have much longer gears , because in the j1 you realy dont want to run high speeds, it winds out very fast!!!!!!!!!!

yeah .I am planing on doing the b20 with ls tranny so I can turbo it later..is there any different mods between b20 and ls? or are they the same? same amount of $$$?? but i know that the b20 is more torque then Ls and stronger right>? and faster..Do i have to resleeve the b20 before I go for turbo??

b20 will over power ls if build it right easy

AmericanFeagle??do you know how to built it right? and the $$ is the same as the LS swap?

you will deff need to resleve it, i say resleve and bore it to 2.2, or just get a ls, resleve and bore it to a 2.0 and you be able to rev a lil harder that CRV, in your case the fastest motor realy is not the concern, its the most reliable, honestly, i say go with the ls, and turbo, you biggest concern will be getting the power to the ground, even with slicks, i think b20T will be a bit to much power for a beginner, just run strait b20 for a while then make the decision!!!!!!!!!!!!!!!

the parte will be the same price no matter if you have a b20 or a LS, just make sure you do it right the first time, BOTTOM end for reliability, and TOP end for HP

maybe if i do the b20 I'll take it to the shop..how is that??i know how to bolt in but..i dont know the mods.

you will deff need to resleve it, i say resleve and bore it to 2.2, or just get a ls, resleve and bore it to a 2.0 and you be able to rev a lil harder that CRV, in your case the fastest motor realy is not the concern, its the most reliable, honestly, i say go with the ls, and turbo, you biggest concern will be getting the power to the ground, even with slicks, i think b20T will be a bit to much power for a beginner, just run strait b20 for a while then make the decision!!!!!!!!!!!!!!!

God, why do people like you who don't have a clue what they're talking about try and give people advice. LS and B20's are essentially the same, they both use the exact same crankshaft, but the LS has an 81MM bore and the B20 has an 84MM bore. To take a B20 out to 2.2L you would need to bore it to 88.5 or 89MM :rolleyes: You said torque is insane on the B20, but once again, they use the exact same crank for the exact same stroke, so the torque and power difference isn't going to be very big. You talk about the rod/stroke ratio, but I bet you have no idea what that has to do with anything, you heard somebody on the internet say that LS/vtec is a fad and its bad and sucks, but have no clue about anything related to the subject.

With that being said, if you plan on going turbo and just want a stock motor to make good power, go with an LS block and a vtec head.. If you plan on resleeving it and making big power, go with whichever you can find cheaper. If you want to make big power, run a vtec head, and grab a full-race vtec conversion kit, it lets you run a vtec head and you don't have to do any drilling. For a trans, don't run an LS as it has the widest gears, it will give you the slowest acceleration and will take you the longest to get into boost. For a typical street car run a GSR trans, and if you ever plan on running some bigger (24.5" or bigger) slicks, go with an SI/ITR trans.

Can we use the Crx si tranny with the ls/vtec??

this is so sweet..LS then wait more $$ turbo..
easy set up ..easy swap..COOL!

I'd say B20 all the way. I've raced against them on the track and they're unbeatable. My local shop had one built up in a 90 Civic and they were showing taillights to an NSX!

God, why do people like you who don't have a clue what they're talking about try and give people advice. LS and B20's are essentially the same, they both use the exact same crankshaft, but the LS has an 81MM bore and the B20 has an 84MM bore. To take a B20 out to 2.2L you would need to bore it to 88.5 or 89MM :rolleyes: You said torque is insane on the B20, but once again, they use the exact same crank for the exact same stroke, so the torque and power difference isn't going to be very big. You talk about the rod/stroke ratio, but I bet you have no idea what that has to do with anything, you heard somebody on the internet say that LS/vtec is a fad and its bad and sucks, but have no clue about anything related to the subject.

With that being said, if you plan on going turbo and just want a stock motor to make good power, go with an LS block and a vtec head.. If you plan on resleeving it and making big power, go with whichever you can find cheaper. If you want to make big power, run a vtec head, and grab a full-race vtec conversion kit, it lets you run a vtec head and you don't have to do any drilling. For a trans, don't run an LS as it has the widest gears, it will give you the slowest acceleration and will take you the longest to get into boost. For a typical street car run a GSR trans, and if you ever plan on running some bigger (24.5" or bigger) slicks, go with an SI/ITR trans.
yea i think i know being i build mah own motor, RS, yea i know what it is and what it does, plain and simple, pistons rubbing into the ctlinder walls, b20 and LS might essentuallt be the same but u know what they ARE NOT, if they were they would be the same, JACKASS, b20 has more TQ because of the biger bore, yea same stroke, but has 5 more ft/lbs of tq at a lower RPM, so before u startaccusin stuff, maby u need to look a lil deeper, DUDE, SO back the fk off, and give him advice not me, im not the one asking, ur makin your self look like an ass tryin to tell me off when hes the one asking for help, and truely, u dont need to choose a tranny until you dyno you motor and check out the power bann, any Turbo tuner knows that............O no man u cant use a crx si tranny, and b series tranny, like y1,j1,s1,ys1, ect!!!!!!!!!!!!

http://hybrid2.honda-perf.org/tech/b20/b20tech.html
http://www.ee.ucla.edu/~davekim/lsvtec/lsvtec15.htm
http://www.robearracing.com/add_wish_list.cfm
http://www.geocities.com/teampimports/lsvtec.html

http://www.strpower.com/lsvtectools.htm
http://www.angelfire.com/dc/lsvtec/2019.html

keep the arguements civil guys, or this is going to have to close.

xxxcrx, no you can not use a D SERIES tranny on a B SERIES motor... people ask that question toooo much.

just do what i did and get a 91 ls,put it in a 91 hatch, $2000 for a stroker kit, then resleeve and motor for the .30 over bore then vtec engine!! 300HP++++++ running 6-7's on slicks in 1/8

just do what i did and get a 91 ls,put it in a 91 hatch, $2000 for a stroker kit, then resleeve and motor for the .30 over bore then vtec engine!! 300HP++++++ running 6-7's on slicks in 1/8

You're right, it's as easy as that, and you'll automatically make 300 horsepower and you'll knock down easy high 10's in a N/A honda. Idiot.