Hi everyone, my friend just purchased a 'new' engine, it's a D15B Z7 and it's got a P2J head fitted with a little '95 written on the rightmost corner.

It's got two VTEC solenoids and the cam has two sets of lobes - one VTEC kicks in at about 3200 RPM and the second one comes on at 6200 RPM, with the limiter being at 7600 RPM.

Needed to know if this is the engine being talked about when I see D15B mentioned in this forum?

If so, can anyone pls advise where to get more aggressive cams for this.

thks / brgds

 

This dual stage vtec d15b isn't the jdm d15b vtec motor that everyone is talking about. I believe that the dual stage vtec motors were in the later model civics in japan and the one that is talked about on the forum most of the time is the singe stage vtec d15b off a 92-95 civic vti

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by argus &raquo;</TD></TR><TR><TD CLASS="quote">Hi everyone, my friend just purchased a 'new' engine, it's a D15B Z7 and it's got a P2J head fitted with a little '95 written on the rightmost corner.

It's got two VTEC solenoids and the cam has two sets of lobes - one VTEC kicks in at about 3200 RPM and the second one comes on at 6200 RPM, with the limiter being at 7600 RPM.

Needed to know if this is the engine being talked about when I see D15B mentioned in this forum?

If so, can anyone pls advise where to get more aggressive cams for this.

thks / brgds</TD></TR></TABLE>

So you're telling me the kid has a camshaft with four lobes per cylinder and the same number of rocker arms to correspond with them?

I call...what's the word I'm looking for?...oh yeah: Bullshit.

 

Dude, if you wanna suppose things by yourself, rather than ask, pls go ahead..

My dear, the cam has a low lift at the first VTEC rpm, and at second VTEC, the rocker pins lock in place, providing full lift.

This used to be one of the best engines we get down here, so a lot of ppl are still using them, including us.

 

Thank you for your reply XTREMEAZIAN. I believe you are right. The ECU is a P2J, have you heard about that one?

 

I have some info about this engine, but then i have to go home and check.
I remember its not exactly a dual stage..

 

must be some of that mad jdm

 

Hey, are you really in Punjab?

I always wondered if people over there hooked up cars.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xtremeazian &raquo;</TD></TR><TR><TD CLASS="quote">This dual stage vtec d15b isn't the jdm d15b vtec motor that everyone is talking about. I believe that the dual stage vtec motors were in the later model civics in japan and the one that is talked about on the forum most of the time is the singe stage vtec d15b off a 92-95 civic vti</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by argus &raquo;</TD></TR><TR><TD CLASS="quote">Thank you for your reply XTREMEAZIAN. I believe you are right. The ECU is a P2J, have you heard about that one?

</TD></TR></TABLE>

Umm.. im guessing the p2j is an obd 2 ecu? other than that , i never heard of it.

 

Well it IS a dual stage VTEC solution from Honda, combining the economy of their VTEC-E engines, with the power of the D15B SOHC 130ps engine. Below 3000 RPM, only 12 of the 16 valves work, while after 3200 rpm, first VTEC engages, and then if the rpm exceeds 6000, then it's a wild cam behaviour! Pretty neat, if I might add.

 

Yes indeed, I'm in the Punjab. Where you at?

Oh we got lots of cars down here, Hondas are the ones usually souped up, but now that taxes have gone down on the bigger cars, we have some cool ones like the Subaru Imprezza WRX Sti, the Nissan 350Zs, Mazda RX8s etc. etc.

 

hmm never heard of this........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by argus &raquo;</TD></TR><TR><TD CLASS="quote">Yes indeed, I'm in the Punjab. Where you at?
</TD></TR></TABLE>

Awesome! I PM'd you.

 

mmmmmmm Roti..........

 

Msg sent to you too man.

 

Xtremeazian, it's an OBD-1, not an OBD-2 - just for the record!

 

Ignore acridictus, he is just mad because he was molested repeatedly while growing up. the motor you are asking about is the 3 stage vtec from the 96-00 Civic ferio vti read about it here http://asia.vtec.net/article/EK3Vi/

it combines vtec-e and vtec power into one engine for economy and power

the ecu is a p2j its an obd2 ecu

 

I have this 3 stage vtec motor and trying to find the ecu for it. It is a obd 2 ecu part number P2J. Anybody that can help me out IM me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by argus &raquo;</TD></TR><TR><TD CLASS="quote">Xtremeazian, it's an OBD-1, not an OBD-2 - just for the record!

</TD></TR></TABLE>

im right! haha, obd2

 

Yeah man, I had a second look at it as well, and it IS an OBD-2. Sorry if I misled anyone!!

 

Yes, thks for the link man, I did some reading on it a while back, but didn't remember where, but that is exactly the link that tells all.

 

Guys, I hope I'm right when I believe the stock compression ratio for the D15B is 10.1 : 1? If not so, please guide, thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by argus &raquo;</TD></TR><TR><TD CLASS="quote">Guys, I hope I'm right when I believe the stock compression ratio for the D15B is 10.1 : 1? If not so, please guide, thanks</TD></TR></TABLE>

9.2:1

 

Noted man, that's very surprising man, we always thought it was a 10.0 or something!! So..if we were to run 10.1 pistons on this, it would really fly, would it not?!