Ignitecivic

i was just browsing ebay and saw a japan jdm d15b dual vtec engine for the obd2. is this true? is has two vtec solenoid pressure switch claiming its a dual vtec engine for a sohc.

if this is possible, is it stronger that what us sohc vtec got. can having a dual vtec be possible for a sohc

http://cgi.ebay.com/ebaymotors...=WDVW

91civicEX

its a 3 stage vtec. works just like a normal vtec sohc engine except its got ultra fuel economy mode. prolly more hassle than its worth in wiring.

Ignitecivic

so the hp/tq range is not much more than a normal sohc vtec engine.

HXMan

I think it is rated at like 130hp.

a1320honda

http://asia.vtec.net/article/d15b/

more down towards the bottom

Tad

NO,
the dual vtec d15b is a weaker economy version,
its made for gas mileage

get the real deal. single vtec 128hp(130ps not hp)

Benbuilt4u

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320honda &raquo;</TD></TR><TR><TD CLASS="quote">http://asia.vtec.net/article/d15b/

more down towards the bottom</TD></TR></TABLE>

sounds good

jaM3s Bond

The 3-stage VTEC D15B represents the pinnacle of development on the D15B engine. From the same configuration as the previous generation VTEC D15B; 1493cc SOHC PGM-Fi but now with the 3-stage VTEC system; it generates the same 130ps at a higher 7000rpm with a max torque of 14.2kgm at 5300rpm. The amazing thing is that now it also offers an incredible 30km/l mileage ! In the flesh, the 3-stage VTEC D15B is a sleeper. The valve cover does not have any 'VTEC' wording and only the sharp eyed will recognize the engine as VTEC by noting the VTEC switches (yes, two of them) located on top of the intake runners and the high 7200rpm red-line of the tach. The 3-stage VTEC engine runs in 12-valve mode up to around 3000rpm. In this range, running in ideal conditions will activate the 'lean-burn' mode, where air-fuel ratios as high as 20:1 can be used to take advantage of the intake swirl induced by the 12-valve operation. This lean-burn mode is what makes the 30km/l mileage (for constant 60kmh speed) possible. A green 'ECONO' LED lights up on the dash when lean-burn mode is engaged.

From around 3000rpm up to about 6000rpm, the first VTEC actuator switch engages and the previously inactive intake valve now goes into operation. The engine now runs in 16-valve mode behaves just like any of Honda's highly spec'ed 16valve PGM-Fi engines. After 6000rpm the second VTEC actuator switch engages the wild cam/rocker arm pair for the intake valves. This switches the engine into the wild-cam mode where it goes bonkers delivering 130ps at 7000rpm. With the proper driving style, one can actually enjoy mileage as high as 16 or 18km/l in town driving while at the same time frequently indulging in VTEC-inspired sprints to overtake slower vehicles.


-From that link.

jaM3s Bond

I remeber reading that the 96+ civic HX was suppose to have this setup but they ended up not doing it. Americans probably didnt like it for some reason.

Ignitecivic

good info guys. i guess im going to stick with the d15b vtec from hmo

a1320honda

thats the motor i have and i absoultly love it. that with an intake and partialy gutted will eat lightly modded gsr's and 99-00 si's for lunch. its a good choice

drewbie*

pm'ed

jdmsiR20

hMmm... i browsed over it too...

what ecu is the proper one to use?

*remember... p08=d15b

H22A EG6

good info i always thought that all D15B were 3stage

Ignitecivic

will the p28 ecu be good with the d15b jdm vtec? or the p08 is the way to go

eg6ajk

two stage vtec is a PITA unless of course you have the OEM OBDII ecu + OBDII car. teh motor show also has the EGR built in which means its from the AUTO car with a lower power output.

best thing is to stick with a 92-5 JDM D15B sohc vtec (careful as the vtec-e is also designated D15b but has of course 92hp output and EGR)

P08 is a great ecu and can be used with d15b as it runs with a single 02 sensor which is present on the JDM sohc/dohc d-series motors, while the USDM ecu looks for 4wire 02, which most usdm motors have...


Modified by eg6ajk at 1:27 PM 8/27/2004

drewbie*

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ignitecivic &raquo;</TD></TR><TR><TD CLASS="quote">will the p28 ecu be good with the d15b jdm vtec? or the p08 is the way to go</TD></TR></TABLE>

If you already have the p28, just use that... but the p08 ecu is optimal for ythe jdm d15b

a1320honda

also the p08 ecu redlines at 7800, and the p28 is at 7200

Tad

p08 is def good for the d15b,

looks like i was alil wrong about hte dual stage one..

i'd still rather have the normal one though personally

Ignitecivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">p08 is def good for the d15b,

looks like i was alil wrong about hte dual stage one..

i'd still rather have the normal one though personally</TD></TR></TABLE>



anyone pass CA smog with the d15b vtec?

jdmsiR20

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ignitecivic &raquo;</TD></TR><TR><TD CLASS="quote">
anyone pass CA smog with the d15b vtec?</TD></TR></TABLE>

not sure, i just swapped one in after the routine smog. but i know that the classic single stage vtec d15b is missing the vacuum connection for the purge cut solenoid valve. besides that, you should'nt have any problem

Bserieskllr

that looks exactly like a d16y5 from a civic hx and it even has the 96-00 valve cover and hx have a i/m almost i dentical too the y8(ex)....you sure its a d15b????

Ignitecivic

it said it was a d15b odb2 . it does look like the d16y8.

ABK

yeah it's obd II

I think it makes the same power as normal vtec jdm d15b, just prolly got more mid torque. Could be good for auto x or something.