B20 J-spec

[Uncle Buck]

ok well i thought about ordering a J-spec B20 Long block for my car, since i do need to pull my motor out anyways and do a complete rebuild on it, she is leaking oil like no other...so i thought to myself why rebuild it if later on iam just gonna pull the motor and drop a B20/B16 Vtec later on....so for the price on PasswordJdm.com they have the B20's for only $549 or two for $999, which iam gonna order two since the roomate wants the B20 vtec in his teggy...so iam pretty much asking has anyone bought the J-spec and did the install on there cars?? cus i know the intake manifold is huge compaired to the original...pros, cons?? anyone have info they would like to share before i do this?? thanks

[InvaderTrax]

B20A or what? I know the Japanese B20A is 10x better than our A5. Couldn't comment on a Japanese CRV B20 though

[Uncle Buck]

sorry forgot that little info lol....its the B20b....here is a link of the motor

http://passwordjdm.com/product.asp?numRecordPosition=17&P_ID=140&strPageHistory=&strKeywords=&SearchFor=&PT_ID=134

mainly what i wanna know is if iam gonna run into any issues of installing this, fitting, and electrical since the motor doesnt come with an ECU or anything, id like to find out more info cus ill be buying a new motor in three weeks cus my old sap needs to retire...

[Prelude13]

B20A or what? I know the Japanese B20A is 10x better than our A5. Couldn't comment on a Japanese CRV B20 though

Uhh...the b20a and b20a5 is pretty much the same motor. Pk2.
Both have dual stage intake runners, both use pk2 ECU's...

b20a - 143hp - 127tq
b20a5 - 135hp - 127tq




sorry forgot that little info lol....its the B20b....here is a link of the motor

http://passwordjdm.com/product.asp?numRecordPosition=17&P_ID=140&strPageHistory=&strKeywords=&SearchFor=&PT_ID=134

mainly what i wanna know is if iam gonna run into any issues of installing this, fitting, and electrical since the motor doesnt come with an ECU or anything, id like to find out more info cus ill be buying a new motor in three weeks cus my old sap needs to retire...


Okay, so making it clear for you:

Prelude 1988-1991 = b20a, b20a3, b20a5, b21a(you will never find this), b21a1, b20a7, b20a9... all drop in, no problems.

Other B series, they all need custom mounts. You see how frekin` low our hoods are?! :biggrin:

B20b/b20z...ala Honda CRV. will not fit without major modifications.
You would need custom mounts, custom work to make those B series trannies work, chip a ECU with custom base maps(depending), obd0-obdI conversion(your car) and a pretty big wallet and aspirin for headaches.

edit2:NO one I know of makes mounts for those B series motors to fit.
Honestly, an Ls/Vtec setup would be insane in a 3g Lude. They would rape all lol!
But they are motors that are destined under the hood of a Teggy, Civic/CRX.
There is some karma about that, dont you agree Uncle? :surprised:

To save you a world of trouble, i would suggest you search for a JDM b20a They run (if you can find) around $500-800(excluding shipping). - look at the list i made: http://preludezone.com/showthread.php?t=1112


:lick:

[InvaderTrax]

When I said better, I guess I should have said stronger, as far as internals go

[Prelude13]

When I said better, I guess I should have said stronger, as far as internals go

Yah, stronger because it has waaaay less miles than our current motors. :rolleyes:

[ogsmakdade]

leave it to B to clarify the 3rd gen confusion

[Uncle Buck]

ok after reading what Prelude13 was saying in his post, iam better off just spending the extra bank and drop in a H22a...more power and looks like a common swap for the most part

[sappysport215]

get the b20 j spec.