Head difference B15a1 a2
05-07-2004, 09:13 PM
#5
Member
Join Date: Feb 2002
Location: at the track
Posts: 5,962
Likes: 0
Received 0 Likes
on
0 Posts
Re: (TeamSlowdotOrg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TeamSlowdotOrg »</TD></TR><TR><TD CLASS="quote">Why would he mean those? It's most likely he's either talking about the B16A1 and B16A2 or the D15A1 and D15A2. Stuff like that is on the SAT. 
</TD></TR></TABLE>
d16a1/2 came in the first gen integras. I am not aware of any differences in the head design, but the pistons are different between the years.
You might have better luck posting this question in the ef civic/crx forum, as some of those guys swap this motor into those cars.
</TD></TR></TABLE>d16a1/2 came in the first gen integras. I am not aware of any differences in the head design, but the pistons are different between the years.
You might have better luck posting this question in the ef civic/crx forum, as some of those guys swap this motor into those cars.
05-08-2004, 09:35 AM
#6
Honda-Tech Member
Join Date: Apr 2001
Location: Montreal, QC, Canada
Posts: 1,260
Likes: 0
Received 0 Likes
on
0 Posts
Re: (x743x)
D16A1 = USDM "ZC" 86-89 Integra
D16A2 = Euro "ZC" CRX/Integra
D16A6 = "ZC" Australia and some asian countries outside of Japan
ZC = JDM
AFAIK, all are pretty much the same engine with minor variations in cams, intake and exhaust manifolds and cam gears. The other variation is the early engines had a vacuum advance ignition ("brown top" cam cover), the later had electronic distributors ("black top") and domed pistons for slightly higher CR. AFAIK, the heads are the same...
The D15A1/A2 are the 84-87 Civic/CRX motors, probably not what you're talking about since you mention 88-91. And there's no sich thing as a B15anything of course.
D16A2 = Euro "ZC" CRX/Integra
D16A6 = "ZC" Australia and some asian countries outside of Japan
ZC = JDM
AFAIK, all are pretty much the same engine with minor variations in cams, intake and exhaust manifolds and cam gears. The other variation is the early engines had a vacuum advance ignition ("brown top" cam cover), the later had electronic distributors ("black top") and domed pistons for slightly higher CR. AFAIK, the heads are the same...
The D15A1/A2 are the 84-87 Civic/CRX motors, probably not what you're talking about since you mention 88-91. And there's no sich thing as a B15anything of course.
05-08-2004, 02:52 PM
#7
a/k/a Jomo
Join Date: Jan 2002
Posts: 6,275
Likes: 0
Received 0 Likes
on
0 Posts
Re: (jsi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jsi »</TD></TR><TR><TD CLASS="quote">D16A6 = "ZC" Australia and some asian countries outside of Japan</TD></TR></TABLE>
What about USDM 88-91 Civic/CRX Si???
What about USDM 88-91 Civic/CRX Si???
Trending Topics
05-08-2004, 03:50 PM
#8
Honda-Tech Member
Join Date: Apr 2001
Location: Montreal, QC, Canada
Posts: 1,260
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Mr Milano)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr Milano »</TD></TR><TR><TD CLASS="quote">
What about USDM 88-91 Civic/CRX Si???</TD></TR></TABLE>
Aw, sorry. Brain fart... Yeah that's the SOHC USDM Si motor. It was the D16A8/A9 i was thinking of. From what i know they had a mix of these for export to Europe and Asia. Still the same engine as the ZC/D16A1 basically...
What about USDM 88-91 Civic/CRX Si???</TD></TR></TABLE>
Aw, sorry. Brain fart... Yeah that's the SOHC USDM Si motor. It was the D16A8/A9 i was thinking of. From what i know they had a mix of these for export to Europe and Asia. Still the same engine as the ZC/D16A1 basically...
05-11-2004, 12:53 PM
#12
Honda-Tech Member
Join Date: Dec 2000
Location: boldly scornful of higher mental function, US
Posts: 1,156
Likes: 0
Received 0 Likes
on
0 Posts
Re: (jsi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jsi »</TD></TR><TR><TD CLASS="quote">The D15A1/A2 are the 84-87 Civic/CRX motors, probably not what you're talking about since you mention 88-91. And there's no sich thing as a B15anything of course. </TD></TR></TABLE>
Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.
</TD></TR></TABLE>Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.
05-11-2004, 03:46 PM
#13
Honda-Tech Member
Join Date: Apr 2001
Location: Montreal, QC, Canada
Posts: 1,260
Likes: 0
Received 0 Likes
on
0 Posts
Re: (madhatter)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by madhatter »</TD></TR><TR><TD CLASS="quote">
Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.</TD></TR></TABLE>
Doh, i'm completely fugged up with the D15 variations. Maybe i should have just checked under the hood of my 91CX eh? Lol...
Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.</TD></TR></TABLE>
Doh, i'm completely fugged up with the D15 variations. Maybe i should have just checked under the hood of my 91CX eh? Lol...
05-11-2004, 06:43 PM
#14
Junior Member
Join Date: Jul 2002
Location: Suffolk, VA, 23437
Posts: 706
Likes: 0
Received 0 Likes
on
0 Posts
Re: (madhatter)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by madhatter »</TD></TR><TR><TD CLASS="quote">
Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.</TD></TR></TABLE>
You're close. I am used to the '85 Si having the EW3 engine number prefix, with EW4 being '86-'87 Sis. I don't think the D15A3 designation was used until '86, but many people call them EW4s. EW3s and EW4s have few differences.
EV1 was the 1.3 engine used in the '84 CRX "base" model. I believe all the 1.5 carbed engines (in the US) were designated EW1, even the 4WD Civic Wagon (with the other bellhousing bolt pattern). This applies to '84-'87.
I checked engine blocks in my garage tonight, and confirmed EW3 on 2 blocks as well as D15A3 on another.
Actually, the 84-87 1.5 liter motors were EW engines. EW4 was the FI 1.5 in the Si. EW3 was the Carbed 1.5. The EW2 was the 1.3 Carbed car.</TD></TR></TABLE>
You're close. I am used to the '85 Si having the EW3 engine number prefix, with EW4 being '86-'87 Sis. I don't think the D15A3 designation was used until '86, but many people call them EW4s. EW3s and EW4s have few differences.
EV1 was the 1.3 engine used in the '84 CRX "base" model. I believe all the 1.5 carbed engines (in the US) were designated EW1, even the 4WD Civic Wagon (with the other bellhousing bolt pattern). This applies to '84-'87.
I checked engine blocks in my garage tonight, and confirmed EW3 on 2 blocks as well as D15A3 on another.
05-11-2004, 07:10 PM
#16
Honda-Tech Member
Re: (Grumpy)
The bottom end is identical. PM3 pistons in both, with the same geometry and everything.. The difference is a restrictor plate in the DPFI throttle body, and quite possibly (I'm not sure about this) a milder cam.
05-12-2004, 04:01 AM
#17
Honda-Tech Member
Join Date: Dec 2000
Location: boldly scornful of higher mental function, US
Posts: 1,156
Likes: 0
Received 0 Likes
on
0 Posts
Re: (kedwards)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kedwards »</TD></TR><TR><TD CLASS="quote">
You're close. I am used to the '85 Si having the EW3 engine number prefix, with EW4 being '86-'87 Sis. I don't think the D15A3 designation was used until '86, but many people call them EW4s. EW3s and EW4s have few differences.
EV1 was the 1.3 engine used in the '84 CRX "base" model. I believe all the 1.5 carbed engines (in the US) were designated EW1, even the 4WD Civic Wagon (with the other bellhousing bolt pattern). This applies to '84-'87.
I checked engine blocks in my garage tonight, and confirmed EW3 on 2 blocks as well as D15A3 on another.
</TD></TR></TABLE>
Huh. I will have to check my block as well. I just searched up parts at Advance, and they all came up with the EW designation for my 86 Si. So's I thought they all were... Thanks.
You're close. I am used to the '85 Si having the EW3 engine number prefix, with EW4 being '86-'87 Sis. I don't think the D15A3 designation was used until '86, but many people call them EW4s. EW3s and EW4s have few differences.
EV1 was the 1.3 engine used in the '84 CRX "base" model. I believe all the 1.5 carbed engines (in the US) were designated EW1, even the 4WD Civic Wagon (with the other bellhousing bolt pattern). This applies to '84-'87.
I checked engine blocks in my garage tonight, and confirmed EW3 on 2 blocks as well as D15A3 on another.
</TD></TR></TABLE>
Huh. I will have to check my block as well. I just searched up parts at Advance, and they all came up with the EW designation for my 86 Si. So's I thought they all were... Thanks.
05-13-2004, 03:43 AM
#18
New User
Thread Starter
Join Date: Jun 2001
Location: Roanoke, VA
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Jaker)
The 70HP was designed for fuel economy. would the restrictor plate promote fuel economy? I can see the milder cam promoting fuel economy. I can see the cam and restrictor plate killing 22HP. I don't see the plate helping gain fuel economy.
Thread
Thread Starter
Forum
Replies
Last Post
tmekjian
Hybrid / Engine Swaps
37
04-22-2003 12:30 PM
