Hey guys! Umm...I was thinking of maybe putting my b16a2 head (Err...that's the top half of the engine right?) with the b20 block (I'm thinking that is the bottom).

So my questions are:
1) Some b20 has vtec and some has no vtec right?
2) Would I still have vtec when I put a b20 non vtec with my b16a2?
3) Is there a diff between the jdm and the usdm b20?
4) Last thing is...will they fit together nicely or will you have to do additional stuff to make it fit together?
5) Ok..this is last for sure..do I have my terms right...with block being bottom part and head being top part of engine?

Sorry guys...I don't know too much about engines and all...still learning. So...don't get at me for being dumb. I really appreciate any answers to my questions.... THANKS!

Ah crap....did I post in the wrong forum...errr....maybe this should go into the hybrid forum...i just saw that....sorry if it's in the wrong forum..


[Modified by lliew, 8:30 PM 1/10/2002]

 

head, is your cylinder head (i.e. cams, valves... your vtec)

block, is your cylider itself.

b series engines are compatible with each other. they can be swapped around with a few modifications. (i.e. ECU's, manifolds etc.)

it can be done.

 

"1) Some b20 has vtec and some has no vtec right?
2) Would I still have vtec when I put a b20 non vtec with my b16a2?
3) Is there a diff between the jdm and the usdm b20?
4) Last thing is...will they fit together nicely or will you have to do additional stuff to make it fit together?
5) Ok..this is last for sure..do I have my terms right...with block being bottom part and head being top part of engine?"

1. don't think any b20's are vtec
2. as long as u use the b16 head u will still have vtec
3. not sure on the diff between jdm and usdm b20's
4. like was mentioned before pretty much all the b-series stuff is interchangeable
5. your terms are fine: block=bottom & head=top

 

Thanks a lot for the replies guys. You guys totally answered my questions. But, now I got some new questions.

So if I go and purchase the block....I'm assuming it comes with everything I will need right?

Also, which engine's ecu, manifold, and etc will I be using? The b16's or the B20's?

Oh yeah...is long block the same meaning as just saying block? I hear both terms tossed around..so I just want to clarify it for myself.

 

To get good compression with ur CRVTEC i would use custom pistons and rods Wisco and Eagle would be a good set up. The only problem with the B20 is the bore, it give awesome torque but 84mm bore makes it impossible to use any of the other 81mm B series (GSR, ITR, CTR, B16 all those pistons won't work.) The build up is fairly easy if you know what ur doing. An oil line has to be added to feed oil to the head since the stock passage will no longer be there on the B20 block. The bottom side of the head will have to be plugged. Dowel holes widened to 14mm. Just go to C-speedracing or CRVTEC.com they both give good info.


[Modified by JDMspecEG6, 2:08 AM 1/23/2002]

 

use the b16 ecu. use your b16 stuff (manifold, t/b,etc) with the b20 block. a long block is both the bottom and the top. a short block is just the bottom. block is usually refering to just the bottom with nothing in it i.e. "i just got my block bored."

 

the jdm b20z is vtec... usdm b20b is non-vtec.

so practically, there are no usdm b20 vtec's(info)

 

long blocks are built mostly in domestics. chevy, stangs...

you will need to research on which ecu, cause i'm clueless when it comes to electrical systems, i need help myself.

i'd say... go JDM!!!

type r intake and exhaust manifolds. use the b18c throttlebodies (GSR/ LS/ SPEC R aka TYPE R)

hoped i help

 

Thanks a lot for the answer guys. I really appreciate it. You guys are awesome!

I will do more research on what I need and all that, if I were to do this swap.

Now I know what people mean by block, long block, and short block. Wohoo!!

I always thought the CRVs here have Vtec in them...hmm...oh well.

Once again....thanks for the info!

 

errr.

NO B20 motors are VTEC from HONDA

there are NO JDM B20Z motors

JDM 98+ B20B 9.6 CR 146 HP
JDM 97- B20B 8.8 CR 126 HP

USDM 98+ B20Z 9.6 CR 146 HP
USDM 97- B20B 8.8 CR 126 HP


[Modified by Kaotik Individual, 11:05 AM 1/11/2002]

 

So from what you have put, there's basically no difference between the 98+ jdm b20a and the usdm b20b engine?

I read somewhere there is a b20a engine. errr...at least I think I read it somewhere. Know anything about it?

 

Forget it, that is the unloved motor from an earlier prelude.....Not closely related and not the parts interchangeablity as the b20b and b20z.

 

you absolutely sure that the JDM '97 b20b is the 126hp, 8.8:1cr version? I have read that the JDM market only saw the 9.6cr version.

And its the newer 2.4L crv's that have the vtec engines

d

 

yup newer CRVs are VTEC-i or something but they are not longer B20s

as for the 97 JDM B20B , I am pretty certain. But I could be wrong.

 

Yea the new CRV's are K24's just a big RSX motor!

 

I looked and 1 and it seams that the engine in backwards on the new cr-v intake on front of engine exhuast on the firewall side. Think it turns backwards compared to B series block?

Yuck

 

What? Who told you that?

No B20 anywhere in the world is VTEC stock. Period.


Look, if you're going to do a LS/CRVTEC, please do some MAJOR reading before asking these types of questions.

This type of Hybrid is not for the faint of heart, nor is it for the mechanically un-inclined.

 

my mistake. i just got used to my friend's hybrids. he has the ls/vtec in his '95 hb, and his having his '96 integra all race, na, b20/vtec. my fault.

 

Come on guys give him the link. http://www.crvtec.com
Read read read.

 

yep, thats the only thing you need to read buddy. that gives you all the info you need

 

hahaha. good one.

i went thru that site after i started using my mouth before, using my head.

and again, my apologies.

still doing my B20/vtec hybrid research.

 

It is all good.

I decided after doing all the research on CRVTEC and swaps in general to purchase a 89-95 Ford Mustang Made more sense.