Just to add to it all, the UK got the B20B3 and B20B4 :D
The B20B3 at least is much the same style, no 33mm intake reliefs.

 

Fantastic post.

I just wanna make sure I am getting this right. B20Z is going to be the USDM 99+ motor. All of the b20z's have 9.2 compression and 146hp. Are there any disadvantages to the b20z compared to the b20b. Im planning to be getting the motor fairly soon and was also wondering what the most reliable place to get a b20z would be. Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">
putting the picture in photoshop and zooming in a bit, those are def P3F pistons, they are really strange how they stamped the P3F, I dont see any other honda engines do it in a half circle.
</TD></TR></TABLE>

Would you mind posting that pic? I'd be interested to see what the p3f stamp looks like.

BTW: great thread!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueTeg &raquo;</TD></TR><TR><TD CLASS="quote">
Would you mind posting that pic? I'd be interested to see what the p3f stamp looks like.</TD></TR></TABLE>

I actually have a picture of a P3F piston up close that I took with my digicamera (it's uploaded onto my laptop at home.... piston is here at the shop right infront of me ) but I can post it up later tonight. FYI, this piston I have here is not from my original motor from 2 years ago..... this one was from a customer's B20-VTEC motor that we built, but the B20 motor came from us that was imported in a container.... also an Orthia motor with the LS-style intake manifold (I still have the head laying on the floor here also.... was going to use it on a rebuilt B18A motor whenever I get around to it).

 

There yah go

 

thanks Newman.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by senate &raquo;</TD></TR><TR><TD CLASS="quote">Fantastic post.

I just wanna make sure I am getting this right. B20Z is going to be the USDM 99+ motor. All of the b20z's have 9.2 compression and 146hp. Are there any disadvantages to the b20z compared to the b20b. Im planning to be getting the motor fairly soon and was also wondering what the most reliable place to get a b20z would be. Thanks</TD></TR></TABLE>

best place to get a high compression B20 is from a junkyard in the US, JDM b20B high compression motors are HARD to find

I have a question though, are the JDM knock sensors special compared to the USDM knock sensor...

The 2000 jdm b20 that I had was the only motor that had a square brown plug knock sensor instead of black round ones that I am used to seeing...

 

Anyone have an idea of how much of a whp gain you'd see from just swapping in newer LS cams?I dyno'ed my 8.8 comp b20 w/ bolt ons @132/121.It feels ok...but i totally have nothing up top in the rpm range at all.Anyone know what kinda gains i can be lookin at?TIA...

MIkey

 

Mikey, from what I have found all the cams are the same. I have found that multiple people including myself... I have taken apart both B20B and B20Z motors and both had the same P75 cams which are pictured in the first picture.

BTW, 133 HP is pretty good. With a high compression motor, expect 10 more whp and about the same amount of torque.

 

does anyone know of anyone that did b20 block with a type-r head cause i was thinking about doing it about i wasn't sure if it was reliable or not if anyone has any info on it then please tell me if not then i'm droping type-r cams in and turbo the **** out of it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ct00si &raquo;</TD></TR><TR><TD CLASS="quote">does anyone know of anyone that did b20 block with a type-r head cause i was thinking about doing it about i wasn't sure if it was reliable or not if anyone has any info on it then please tell me if not then i'm droping type-r cams in and turbo the **** out of it.</TD></TR></TABLE>

What your saying doesnt really make sense but yes, ITR head w/ b20 bottom is reliable if it is built "right"

 

Good Write Up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mp7235 &raquo;</TD></TR><TR><TD CLASS="quote">Good Write Up </TD></TR></TABLE>


thanks

Just to add to this I actually just got in a 2000 B20B with a knock sensor but with a PHK manafold!

Ill take some pics for you guys and do a total revamping of this thread for everyone... ive learned a lot about the mystery behind the B20B since i first created this post.

 

I have a B20z from a 2000 crv 5spd. It has a brown plug sq knock and I took off the IM because I didnt think it would fit under the civic hood. Im running a 94 teg IM and ECU. Can I a differnt IM for more power or is this fine. And can I wir that knock to an obd1 tec ecu and have it function so I can be cheap and run 87. what octain is safest if not.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by highcomp &raquo;</TD></TR><TR><TD CLASS="quote">I have a B20z from a 2000 crv 5spd. It has a brown plug sq knock and I took off the IM because I didnt think it would fit under the civic hood. Im running a 94 teg IM and ECU. Can I a differnt IM for more power or is this fine. And can I wir that knock to an obd1 tec ecu and have it function so I can be cheap and run 87. what octain is safest if not.</TD></TR></TABLE>

Its fine.... the obd-1 teg ecu doesnt even look for the knock sensor... and running a p75 intake manafold vs the PHK manafold really isnt much of a performance difference.

I see no harm running a 9.6:1 compression motor with an LS ecu on 87 octane..

 

Hey I must say this is an excellent thread, but I may be messing things up abit!

heres my setup:

'97 motor B20B
P8R head - 75Cams
P8R IM - Tall girrafe style? Looks taller then my Ls'
P3F enscripted on Block
2Layer HG..
Didnt really look for a knock sensor but I would've seen it there... SO i doubt its got one.

So All in all I belive I got like a 9.0CR B20 for the reason of my 84MM combustion chamber on my P8R and 2 layer gasket. However.. My comp test was high 160's low 170's... so... ?? meh its got the LS cams so it should be making at least 142 like my LS. Later all and good thread I learned alot!

 

My block is stamped B20Z2. What does this mean???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SYPHONSCIVIC &raquo;</TD></TR><TR><TD CLASS="quote">My block is stamped B20Z2. What does this mean???</TD></TR></TABLE>

means you have 9.6:1 compression

 

yes if u are going all motor then the b20z would be the way to go if using induction then the b20b cause the compression is lower but either one is good i have a b20z with a 1st gen b16 head almost built .

 

bringing back good b20 info from the dead, bump.

 

Currently, I am going through a deal. It is a JDM B20B engine that came from Orthia, 98 Spec, 9.2 CR with P75 head. I saw the engine last night and the owner took me for a spin around the neighbourhood.

It has the lower type IM. The last compression numbers he had were 170/175/175/175 on a cold engine. He is going to do another one for me when the time comes to buy it.

That engine is mated with JDM ITR 4.785 tranny with Kaaz LSD. He let me drove the car but I was afriad to step on it. But damn, that LSD is tight (with PS belt off). I like the pull, it felt nice. He shifted at 3000RPM range and basically, all the shifting was done in less than 5 seconds, from 1st to 5th.

Runs on same 87 octane gas, has more power and torque than my Y7, great price and from a great guy. I will shoot myself for not jumping on this deal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daver &raquo;</TD></TR><TR><TD CLASS="quote">can some one explain his P8R-7 head stamp? </TD></TR></TABLE>

http://nonvtec.com/board/viewtopic.php?t=1278

Might be the hot setup???
HTH
chris

 

i've read through all 5 pages. i have a b20b with the all mighty p8r head. (rare, flows like v-tec heads) the car runs harder than expected. i wanna know the compression after all this. dont know the year and has afterkarket intake manifold. how do i know if its a 9.2!?!?!?

 

also...how can i tell what year it is? jdm, or usdm? (even though theres no difference) im still curious. and can someone send me the head gasket pictures cause there not showing up for me. sen2two@yahoo.com. or just try and post them. thanx


Modified by sen2two at 3:33 PM 9/26/2005

 

nice info