i've been searching on these engines and i know that the z6 and d15b are vtec and that the zc is dohc but which is better, which has more aftermarket support do the z6 d15b get the same parts as far as intake manifolds headers ect?

 

zc parts are harder to find than the others.... but alot of the parts are interchangeable....

 

whats the main diffrence between the z6 and d15b and as far as the zc it sounds like a pos its a dohc and has as much as a single

 

i think the d15b vtec has a 3 stage vtec other than the z6 they are the same

 

so with the d15b if i was to order cam shafts and things like that head gaskets ect i would order it for a z6 or not?

 

your better off going with the z6.
its easier to find, easier to find parts for, and has the potential to make more power.

 

i just finished searching around and ur right garageEF ur right. the reason i've been thinking of doing this swap is b/c its cheap i had the b16 in my crx and now i own a 90 sedan and i figured i didn't want to spend that much on a swap

 

are all D15B's Vtecs?? are there Sohc vtec and Dohc vtec D15B, i'm asking this because i just had one swapped into my car.

I know it's a Sohc though, but it comes with Vtec?

if so i never knew that.

 

the only d15b that is vtec is the jdm version and they are sohc

 

so i figured the only thing needed to do this swap is the motor, harness and ecu and i'll send the harness to rywire to convert to obd1 and i'll use my cable tranny. what do u guys think for ecu the p08 or p28

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EF_9 &raquo;</TD></TR><TR><TD CLASS="quote">i think the d15b vtec has a 3 stage vtec other than the z6 they are the same</TD></TR></TABLE>

Read This: https://honda-tech.com/zerothread?id=635580

The 92-95 Civic VTi has the regular D15B VTEC
96-00 Civic has the 3-Stage VTEC

They are similar to the Z6 but not the same. Look at https://honda-tech.com/zerothread?id=1085494 and see parts list

 

d15b is a 1.5L SOHC vtec
d16z6 is a 1.6L SOHC vtec

so the z6 has more displacement they are quite similar the jdm d15b has a more aggressive cam similar to a zex 59300 that is how the jdm 1.5 makes as much power as our usdm 1.6.

Personally I am running a z6 with a zex cam...I chose to use the right ecu and use the p28 and convert the car to obd1 since the p28 is for the z6. I love it car is reliable and runs like a champ....no codes....no hassles

 

Cool! i got a Sohc Vtec, no wonder it picks up diffrently then a D15B2.

My friend was telling me how the car felt like it had more power, but i wasn't so sure if it was the type of engine that was making it seem like it has more power, or the fact that it's just such a small light car.


Isn't a D15B2 has like 96HP?

A D15 has 125 - 130HP?

 

JDM D15B VTEC 130 ps @6800 rpm = ~128 hp

 

so z6 it is now i have 2 order the motor wait 2 it comes send both harnesses 2 rywire and get the usual things timebelt,waterpump ect. i think i'm gonna replace my mounts 2 what do u guys think is the best place 2 buy (i usually go 2 the dealer

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lrcrx90 &raquo;</TD></TR><TR><TD CLASS="quote">what do u guys think for ecu the p08 or p28</TD></TR></TABLE>
they are the exactly the same, but p28 uses 4 wire O2 sensor, and p08 just one wire

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zenon8890 &raquo;</TD></TR><TR><TD CLASS="quote">
they are the exactly the same, but p28 uses 4 wire O2 sensor, and p08 just one wire</TD></TR></TABLE>

Not exactly the same.

P08:
- Is in a smaller case
- Has most all Surface Mount components (harder for amateurs) also meaning different type compenents to chip it
- Has Fuel and Timing Maps for JDM D15B VTEC
- Uses single wire O2 sensor
- Has no PA Sensor built in
- Maybe a few other things but I can't think of them right now

P28:
- Larger case that doesn't easily fit underneath the stock EF/ED Civic CRX ECU covers
- Has mostly Through-Hole designed compenents (Easier for beginners to chip)
- Has Fuel and Timing Maps for USDM D16Z6
- Uses 4-wire O2 Sensor
- Has a PA Sensor built-in

Now these are "huge" differences to most people and their applications, but they are not the 'exact' same. I wish I had kept my P08 personally.

BTW, you can make a P08 use the heater unit in the 4-wire O2 by adding in components inside the ECu and you can make the P28 use a single wire by modifying the ROM.

*********

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lrcrx90 &raquo;</TD></TR><TR><TD CLASS="quote">so z6 it is now i have 2 order the motor wait 2 it comes send both harnesses 2 rywire and get the usual things timebelt,waterpump ect. i think i'm gonna replace my mounts 2 what do u guys think is the best place 2 buy (i usually go 2 the dealer</TD></TR></TABLE>

Doing those usual tune ups is really going to give you peace of mind

What is wrong with your current mounts?

 

the bushing on my mounts are going bad cause when i'm driving normally not slamming the car the motor hit hard when i go through the gears and i checked to see if they were loose but the bushing looks pretty old

 

just get poly inserts it is cheaper

 

so get the inserts from energy suspension and is it a pain to install

 

umm...what kind of zc dude...soch zc? dohc zc?? the sohc zc is just like the d16a6 dude...do a mini me dude.

 

I used Prothane Engine Mount Inserts. They have a kit that includes all four mounts. I liked them. Pretty cheap too ~$30 for the set. Hardest to install was the rear mount. I purchased my kit from lightningmotorsports.com I'm sure many other places carry it though.

 

um dude how much hp increase would i get doing a mini me dude

 

and would a z6 head fit on a d15b2 block?

 

yes it would...dats what a mini me is.....n u can use an obd0 to obd1 jumper harness to convert to obd1...u dont need to convert the whole engine harnes...