Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

SOHC or DOHC?

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Old Jul 7, 2008 | 06:55 PM
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Default SOHC or DOHC?

so i dnt really make that much money, should i fix my stock D16? maybe a turbo. or should i save and get a DOHC? Also i dnt see to many built SOHC, so can u post pics so i can se how they look built, thanx.
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Old Jul 7, 2008 | 06:57 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

build your d16 and boost it. that is my plans with my car.
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Old Jul 7, 2008 | 07:06 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

The timeless debate...
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Old Jul 7, 2008 | 07:07 PM
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and it begins again..

its up to you... do what you wanna do with your money... its your car...


either way its going to be fun
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Old Jul 7, 2008 | 07:12 PM
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Default Re: (riceburnerryan)

Yeh thats true, i think i might stic; with SOHC. Where r places or websites that i can order parts for the single cam?
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Old Jul 7, 2008 | 07:14 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

Do you realize that building a motor does not necessarily change it's outward appearance? Or when you say "build" do you mean "adding a whale *****"?
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Old Jul 7, 2008 | 07:16 PM
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Default Re: SOHC or DOHC? (aklano)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aklano &raquo;</TD></TR><TR><TD CLASS="quote">Do you realize that building a motor does not necessarily change it's outward appearance? Or when you say "build" do you mean "adding a whale *****"? </TD></TR></TABLE>

I meant built, like make it faster
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Old Jul 7, 2008 | 07:18 PM
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Built on HT usually refers to upgrading engine internals. Hence the photos you are requesting of "built " SOHC's would look the same as their unbuilt counterparts. Not flaming you, just thought it would be advantageous for you to be aware of this.
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Old Jul 7, 2008 | 07:21 PM
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Default Re: (aklano)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aklano &raquo;</TD></TR><TR><TD CLASS="quote">Built on HT usually refers to upgrading engine internals. Hence the photos you are requesting of "built " SOHC's would look the same as their unbuilt counterparts. Not flaming you, just thought it would be advantageous for you to be aware of this.</TD></TR></TABLE>

Naw i know that dude, like i wana see the turbo set up
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Old Jul 7, 2008 | 07:22 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

a good place to start is d-series.org

plenty of great info there

for single cam parts, just look up good-named parts brands like golden eagle, comp, skunk2, bisimoto, exospeed, HKS, etc etc.

do lots of googling too
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Old Jul 7, 2008 | 07:38 PM
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Default Re: SOHC or DOHC? (grandtheftlunchbox)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grandtheftlunchbox &raquo;</TD></TR><TR><TD CLASS="quote">a good place to start is d-series.org

plenty of great info there

for single cam parts, just look up good-named parts brands like golden eagle, comp, skunk2, bisimoto, exospeed, HKS, etc etc.

do lots of googling too </TD></TR></TABLE>


thanx, thats exactly what i needed
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Old Jul 7, 2008 | 07:43 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

Yeah man. research is alway the first step. Im still learning that myself. And when you think youve gathered all the information you still find yourself learning something new. But when its all said and done just make sure your building the car for yourself and not what other people think is cool
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Old Jul 7, 2008 | 07:56 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

here i go and i"ll post it again......


Quote, originally posted by austinkli »
i thought the same thing as you, but if you read the wikipedia link obuhmyuh posted, down at the bottom you can read all the d-series motors and it lists the valvetrain for each one. turns out the D16A1, D16A3, D16A8, and the D16A9 are all DOHC, while all the rest of the D16's are all SOHC. Weird huh?


ok ok ok let me make it very clear over here

the wikiliers or whatever is called.!!! says this..


A few D-series variants are labelled "ZC" (usually JDM), but they are not truly a different series.

There are both SOHC and DOHC ZC engines.

The non-VTEC SOHC ZC is similar to the D15Z4 and D16A6 engine, but with more aggressive cam timing.

The VTEC SOHC ZC is identical to the D16Z6, and the DOHC ZC is similar to the D16A1, D16A3, D16A8, D16A9 and D16Z5 engines.

Euro Mk1 (85-87) 1.6 CRX's are fitted with an engine designated "ZC1" which is a higher spec 130 bhp version of the D16a1.

The JDM Browntop ZC from the 84-87 Civic CR-X and Integra made 135hp from the factory.


ok is very clear... some D series like d15z4 and d16a6 are sohc but non vtec... thats is clear right??
but.....teh vtech sohc ZC or same as D16Z6 are sohc vtec ... (not dohc) that's also clear,,,
but read what it says.....DOHC ZC is similar to the D16A1, D16A3, D16A8, D16A9 and D16Z5 engines. witch i know these dohc are non vtec...
here your answer,, look at the valvetrain it does not says vtec


[edit] D16A1
Found in:
1986-89 Acura Integra (USA)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
1986-1987 Compression : 9.3:1 1988-1989 Compression : 9.5: 1
1986-1987 Power : 113 hp (84 kW) @ 6250rpm Torque : 99 ft·lbf @ 5500rpm
1988-1989 Power : 118 hp (88 kW) @ 6250rpm Torque: 101 ft·lbf @ 5500rpm
Valvetrain : DOHC
Piston Code 1986-87 : PG6
Piston Code 1988-89 : P29 (PM7 is ZC equivalent/same piston)
Fuel Control : OBD-0 MPFI

[edit] D16A3
Found in:
1986-89 Acura Integra (Australia)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 118 hp (88 kW) @ 5600 rpm & 103 ft·lbf @ 4800 rpm
Valvetrain : DOHC *
Fuel Control : OBD-0 MPFI

[edit] D16A8
Found in:
1988-1995 Civic/CRX/Concerto (UK/Europe/Australia)
1990-1995 Rover 216/416 GTi(UK/Europe)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 124 hp (92 kW) @ 6800 rpm & 108 ft·lbf @ 5900 rpm
Valvetrain : DOHC*
Fuel Control : OBD-0 MPFI
ECU Code: PM7

[edit] D16A9
(Same as D16A8 but without a catalytic converter)

Found in:
1988-1991 Concerto (UK/Europe)
1988-1991 CRX 1.6i-16(UK/Europe/South Africa)
1988-1991 Civic 1.6i-16(UK/Europe/South Africa)
1989-1996 Rover 216/416 GTi (UK/Europe)
1992-1995 Civic Si (Peruvian version)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 130hp @ 6800 rpm & 108 ft·lbf @ 5900 rpm
Valvetrain : DOHC 16v*
Redline: 7200RPM
Limit: 8000RPM
Fuel Control : OBD-0 MPFI
ECU Code: PM7
GearBox : L3 Cable type

[edit] D16Z5
(Basically the same engine as the D16A9, but now with a catalytic converter and lamda sensor)

Found in:
1988-1992 Honda CRX (European Market)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 124 hp (92 kW) @ 6800 rpm
Valvetrain : DOHC *
Cam Gear : 34 tooth
Fuel Control : OBD-0 PGM-FI
Head Code : P7
Piston Code : PM7
ECU Code: PM7


so that means that not all D series Dohc are vtec.. so that also mean that i rather keep my D16Z6 VTEC than any of those DOHC..
but for you info the D16Z6 is the best engine ever built out of any the D series..
and by the way .. i never believe on this wikiliers ... they never have the right info.. . keep your ZC Vtec and if you want rebuilt it and do a mod on it.. it'll last long and less troubly..easy to fix, gas saver and with your mod your gonna have great power on it..
better look for a good mechanic that knows about honda engines and power.. to help you out.. i know what i"m talking about.. !!

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Old Jul 7, 2008 | 08:07 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)


by the way those mtfker peruvians have a good engines on their rides

D16A9
(Same as D16A8 but without a catalytic converter)

Found in:
1988-1991 Concerto (UK/Europe)
1988-1991 CRX 1.6i-16(UK/Europe/South Africa)
1988-1991 Civic 1.6i-16(UK/Europe/South Africa)
1989-1996 Rover 216/416 GTi (UK/Europe)
1992-1995 Civic Si (Peruvian version)
Displacement : 1590 cm³
Bore and Stroke : 75 mm X 90 mm
Compression : 9.5:1
Power : 130hp @ 6800 rpm & 108 ft·lbf @ 5900 rpm
Valvetrain : DOHC 16v*
Redline: 7200RPM
Limit: 8000RPM
Fuel Control : OBD-0 MPFI
ECU Code: PM7
GearBox : L3 Cable type


and bet you they don't know about engines..,,,,sera mejor que valla a peru y me consiga uno de esos motores.. i'll see if i can imported into the states...!!!
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Old Jul 7, 2008 | 08:09 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

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Old Jul 8, 2008 | 05:46 AM
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Default Re: SOHC or DOHC? (sorullo)

Nice
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Old Jul 16, 2008 | 06:35 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

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Old Jul 16, 2008 | 06:38 PM
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Default Re: SOHC or DOHC? (JDM EJ2)

yeah the timeless debate. but is fun!!!
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Old Jul 16, 2008 | 07:45 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

I would build the d series and boost it. That car would be pretty nasty with built motor and some boost. Thats what I would do and it would prolly be cheaper.
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Old Jul 16, 2008 | 08:37 PM
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Default Re: SOHC or DOHC? (Mr. EJ1)

SOHC turbo all the way man....cheaper and easier to find parts for
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