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SOHC OR DOHC

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Old Aug 21, 2002
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SOHC OR DOHC

he's a noob question for all you noob haters out there that throw a fit about everything.

whats the better engine for 5-speed tranny's? SOHC DOHC....never took the time to think about it and i don't feel like "searching".
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Old Aug 21, 2002
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[hr]Originally posted by: zagzig
he's a noob question for all you noob haters out there that throw a fit about everything.

whats the better engine for 5-speed tranny's? SOHC DOHC....never took the time to think about it and i don't feel like "searching".[hr]
Such a rude noob. Ppl just ignore this guy.
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Old Aug 21, 2002
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edit: nevermind [IMG]i/expressions/face-icon-small-blush.gif[/IMG]
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Old Aug 21, 2002
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You don't feel like searching?

I don't feel like answering.

But here is a clue. 7th gen Civics are SOHC. So why ask?
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Old Aug 21, 2002
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[hr]Originally posted by: zagzig
he's a noob question for all you noob haters out there that throw a fit about everything.

whats the better engine for 5-speed tranny's? SOHC DOHC....never took the time to think about it and i don't feel like "searching".[hr]
First of all I take it you where trying to type [IMG]i/expressions/moon.gif[/IMG] in your sig area;

Secondly, two is always better than one.

P3AC3
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Old Aug 21, 2002
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there are no such things as stupid questions
just stupid noobs that ask questions

IBTL
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Old Aug 21, 2002
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but 0 is better than 2. look at the new 7 series from bmw...no throttle body, no cams...
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Old Aug 21, 2002
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[hr]Secondly, two is always better than one.[hr]
Not always true. Audi makes some nice SOHC engines. But generally speaking, DOHC engines produce more power than SOHC engines. And what is your definiton of "better"?
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Old Aug 21, 2002
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Well minus well not waste a thread so heres the answer

SOHC = single over head cam

DOHC = double over head cam

DOHC is better than SOHC because each cylinder has 4 "holes/cams" (whats the correct name?) Two of them is for intake, and two is for the exhaust. This is comprared to SOHC where there is only one hole for intake and one for exhaust. Obviously, because DOHC has more "holes" it can inhale and exhale faster which equal faster acceration etc... V-tec also works a lot better with DOHC than SOHC.

Boy I hope Im right.....is noobie still under my name?
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Old Aug 21, 2002
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I've read from a "VTEC explained" article somewhere that DOHC is not necessarily better than SOHC in terms of performance... It all depends on the application of the engine.

Generally speaking, yeah, DOHC usually generate more HP. But also is much less fuel efficient, etc....

Bottom line is, we don't even have much of a SOHC engine. Our engine is VTEC-E which is an economy version of the real SOHC VTEC... Sucks.
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Old Aug 21, 2002
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[hr]DOHC is better than SOHC because each cylinder has 4 "holes/cams" (whats the correct name?) Two of them is for intake, and two is for the exhaust. This is comprared to SOHC where there is only one hole for intake and one for exhaust. Obviously, because DOHC has more "holes" it can inhale and exhale faster which equal faster acceration etc... [hr]
The Civic engines are 16 valve engines. Which by 2nd grade math.... 16 Valves/4 Cylinders = 4 Valves per Cylinder and it's an SOHC.
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Old Aug 22, 2002
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Msoft- The only civic with the v-tec E is the HX...shoulda went EX got the straight v-tec
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Old Aug 22, 2002
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[hr]Originally posted by: IMURMILK1
Msoft- The only civic with the v-tec E is the HX...shoulda went EX got the straight v-tec[hr]
yup yup
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Old Aug 22, 2002
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This it the 7th Gen Civic Board

The 7th Gen Civics have SOHC

An engine swap to DOHC is near impossible

So why ask the question when we are pretty much stuck with SOHC?
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Old Aug 22, 2002
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Really? My bad. Have always thought it was VTEC-E in the EX. Aha, I do have an EX (Si Canada), haha...
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Old Aug 22, 2002
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[hr]Originally posted by: civicer
Well minus well not waste a thread so heres the answer

SOHC = single over head cam

DOHC = double over head cam

DOHC is better than SOHC because each cylinder has 4 "holes/cams" (whats the correct name?) Two of them is for intake, and two is for the exhaust. This is comprared to SOHC where there is only one hole for intake and one for exhaust. Obviously, because DOHC has more "holes" it can inhale and exhale faster which equal faster acceration etc... V-tec also works a lot better with DOHC than SOHC.

Boy I hope Im right.....is noobie still under my name?[hr]
Our cars are SOHC yet we have 16 valves, meaning 4 valves/cylinder. SOHC just means we have one overhead cam to operate the valves. DOHC has two cam shafts, one to operate intake, one exhaust valves. This allows more flexibility since the two cam shafts are independent, and usually DOHC makes more power. Acura TL/CL, Mercedes-Benz use SOHC. Mercedes uses 3 valves/cylinder. Audi uses 5 valves/cylinder.
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Old Aug 22, 2002
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no comment!
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