ZC vs. D15b

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Old Jun 8, 2005 | 09:06 PM
  #1  
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Default ZC vs. D15b

ok heres the story... i had $800 for a swap and wanted to put a d series motor in and i had my eyes set on a d15b for about $625... then some stuff came up and now all im going to have is about $550 for the swap so im looking at the zc from hmotors but ill have to wait about a month for their next one to come in... either that or find one in the junkyard around here... basically i dont know what to do... is the D15b worth the wait or should i just find a zc and swap it... i plan on turboing the motor down the road... which one would be better for the price... thanks for your opinions
-Josh
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Old Jun 8, 2005 | 09:08 PM
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d15
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Old Jun 8, 2005 | 09:24 PM
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Default Re: (Jonathan_ED3)

My opinion would be biased, but I can still tell you that if you get a motor from h-motors, you have to may an assload for shipping too. It won't be $550...
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Old Jun 8, 2005 | 09:31 PM
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Default Re: (CycloneBlue_1.6EL)

You're not going to find a zc motor in any junkyard in this country unless the car had that motor swapped in by the previous owner,,But chances are it was taken back out by he/she....

You should get a d16z6 or d16y8..They're easy to find and cheaply priced..Every junkyard has a couple ex civics laying around..Or if not there are many people selling there sohc vtecs after they've done their swap..Good luck
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Old Jun 9, 2005 | 06:35 AM
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Default Re: (Mr.speaker)

yeah i just found that out a little while after i posted it... im looking into a z6 with 112k miles on it right now for $300 but i dont think that includes the tranny so i have to find an si tranny too... how do z6's respond to boost? thanks for the help guys
-Josh
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Old Jun 9, 2005 | 06:54 AM
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are all z6's vtec? and what is vtec-e? i was searching on car-part.com for a y8 and that was an option... just wondering... thanks
-Josh
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Old Jun 9, 2005 | 07:09 AM
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Default Re: ZC vs. D15b (Crimson_Tide)

NON CALI ENGINE PRICES SUCK!!!

We get the D15Bs for like 275-350 over here.

I'd opt for the Z6 as long as nothing is wrong with it and it.
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Old Jun 9, 2005 | 07:12 AM
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Default Re: ZC vs. D15b (Crimson_Tide)

I've had both, and I'd go w/ teh DOHC ZC personally.
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Old Jun 9, 2005 | 07:18 AM
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Default Re: ZC vs. D15b (DJ_SaNdOz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DJ_SaNdOz &raquo;</TD></TR><TR><TD CLASS="quote">I've had both, and I'd go w/ teh DOHC ZC personally.</TD></TR></TABLE>

I've also had both, and the torque that the zc makes down low is badass. I would definetaly go with a dohc zc
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Old Jun 9, 2005 | 07:15 PM
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Default Re: (Crimson_Tide)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crimson_Tide &raquo;</TD></TR><TR><TD CLASS="quote">are all z6's vtec? and what is vtec-e? i was searching on car-part.com for a y8 and that was an option... just wondering... thanks
-Josh</TD></TR></TABLE>

Yes,all d16z6's are vtec even though some of them dont have vtec written on the valve cover..They are ok for turbo..They can only handle around 200hp stock with good managment..So get a small turbo,side intercooler,450 injectors and some management and you'll be fine..

And trust me,you dont want vtec-e..It is not good for performance..
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Old Jun 9, 2005 | 08:16 PM
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Default Re: (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">And trust me,you dont want vtec-e..It is not good for performance..</TD></TR></TABLE>

The D15b is not just VTEC-E... it's 3-stage VTEC. That means it's a combination of VTEC-E and regular VTEC. It has the lean burn mode just like the VTEC-E, but it's got the aggressive VTEC cam lobe for higher RPMS just like the other SOHC VTEC's. Your only advantage to having the D15b would be good gas mileage. If that doesn't matter to you, get the DOHC ZC. It's the easiest swap for your EF.
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Old Jun 9, 2005 | 08:31 PM
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Default Re: (CycloneBlue_1.6EL)

I know all that..But he asked "what is vtec-e" ..All I said is that he shouldnt get a vtec-e motor if he wants performance..I never said anything about the d15b being vtec-e..
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Old Jun 9, 2005 | 08:33 PM
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Default Re: (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">I know all that..But he asked "what is vtec-e" ..All I said is that he shouldnt get a vtec-e motor if he wants performance..I never said anything about the d15b being vtec-e..</TD></TR></TABLE>

I know, I just wanted to make sure there was no confusion... but technically, the D15b is both.
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Old Jun 9, 2005 | 08:39 PM
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Default Re: (CycloneBlue_1.6EL)

My bad..
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Old Jun 9, 2005 | 08:41 PM
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Default Re: (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">My bad..</TD></TR></TABLE>

No worries.
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Old Jun 9, 2005 | 08:52 PM
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d15b=no torque. it's quick and all once you get going, but it really doesn't kick in until you're in the high rpm's. i have to rev the **** out of mine just to keep up with traffic from a redlight. when going through 1st and 2nd gear in normal driving i will almost always hit 4500-5000 rpm to keep up with the speed of traffic.

but then again zc's are all old and getting kind of iffy.
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Old Jun 9, 2005 | 09:08 PM
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Default Re: (90sirex)

Im waiting on a dohc zc from hmotors on the next container aswell Ive had zc's before and i'd take another dohc before a zc sohc or d15b (my friend has had both in his crx) plus the higher comperssion and higher torque will make the turbo alot more fun.

just my $0.02

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Old Jun 9, 2005 | 09:42 PM
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Default Re: (EFbomb)

Now I'm kind of going off topic, but not really because it was mentioned earler...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFbomb &raquo;</TD></TR><TR><TD CLASS="quote">Im waiting on a dohc zc from hmotors on the next container aswell Ive had zc's before and i'd take another dohc before a zc sohc or d15b (my friend has had both in his crx) plus the higher comperssion and higher torque will make the turbo alot more fun.</TD></TR></TABLE>

What's your grand total going to be with freight and everything on that DOHC ZC from Hmotors?
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Old Jun 9, 2005 | 09:53 PM
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Default Re: ZC vs. D15b (Crimson_Tide)

If you want to turbo it, go for ZC. I think ZC could handle more pressure then SOHC.
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Old Jun 9, 2005 | 09:54 PM
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Default Re: (CycloneBlue_1.6EL)

i was actually referring to the sohc zc... does the dohc head really make that much of a difference? i would like some torque but as mentioned before... i have limited funds and im not sure if ill be getting a job soon b/c of school... right now im looking at a z6 with 90,000 miles for $400 from a junkyard here and im going to try to find an ecu and si tranny... which ecu would be best for my application? also what wiring would be involved since i have dpfi and a non vtech obd0 car? thanks
-Josh
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Old Jun 9, 2005 | 09:56 PM
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Default Re: ZC vs. D15b (FOMULA91)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOMULA91 &raquo;</TD></TR><TR><TD CLASS="quote">If you want to turbo it, go for ZC. I think ZC could handle more pressure then SOHC.</TD></TR></TABLE>

Actually both motors cant handle much more then 200hp..And thats with a good tune..The rods in zc motors are very thin..I dont know if they're thicker then the sohc rods or not but both motors bottem ends are very weak stock..
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Old Jun 9, 2005 | 09:59 PM
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Default Re: (Crimson_Tide)

Get OBD1 Harness with P28 ECU.
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Old Jun 9, 2005 | 10:02 PM
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Default Re: ZC vs. D15b (Mr.speaker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">Actually both motors cant handle much more then 200hp..And thats with a good tune..The rods in zc motors are very thin..I dont know if they're thicker then the sohc rods or not but both motors bottem ends are very weak stock..</TD></TR></TABLE>

The rods are no thicker in a ZC... it's just another D-series basically. 200whp is a good limit on a completly stock motor I think... I'm putting down 204whp from my D16Y8 right now at 9psi. It handles it quite well, and I showed a 5 liter who's boss when I was on my way into work tonight.
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Old Jun 10, 2005 | 06:14 AM
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Default Re: ZC vs. D15b (CycloneBlue_1.6EL)

The ZC has the strongest rods of the D series family.
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Old Jun 10, 2005 | 07:54 AM
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Default Re: (EFbomb)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFbomb &raquo;</TD></TR><TR><TD CLASS="quote">Im waiting on a dohc zc from hmotors on the next container aswell Ive had zc's before and i'd take another dohc before a zc sohc or d15b (my friend has had both in his crx) plus the higher comperssion and higher torque will make the turbo alot more fun.

just my $0.02

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

is there a big diff. between the zc dohc and sohc? ive heard the single is just as good. can the double just handle more power?
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