Why does Honda still use SOHC?
The biggest reason to use them is because DOHC engines are more expensive to produce (which price would get pushed back onto the consumer), there are more moving parts in them (which means they will fail sooner), and they can still do VTEC in either version.
What is SOHC i-VTEC?
i-VTEC stands for Intelligent Variable Valve Timing and Lift Electronic Control, a system created by Honda to improve fuel consumption of Honda vehicles. The VTEC system uses two camshaft profiles and hydraulically selects between the two. This technology was invented by Ikuo Kakitani, a Honda engineer.
Do SOHC engines have VTEC?
The DOHC i-VTEC system enhances the effect of VTEC® by adding Variable Timing Control™ (VTC™). VTC is a hydraulically operated system that controls the timing of the chain-driven intake camshaft, advancing or retarding it during the intake cycle. Civic engines add exhaust-camshaft VTC for even greater precision.
Which engine is better SOHC or DOHC?
DOHC is better for performance because you will get more horsepower with it. SOHC is better for reliability. A SOHC engine contains much lesser parts, which will make it more reliable.
Is VTEC DOHC or SOHC?
There is actually a very large difference between the two. The SOHC VTEC only has the variable affect on the intake side (there is only so much room on a camshaft). A DOHC VTEC has VTEC on both the intake and exhaust cams.
What kind of engine is a SOHC engine?
, Computer expert since age 5, expert of everything, even if only in my mind. VTEC is a Honda trademark, and SOHC is a single-cam engine (Single OverHead Cam). Those are the two most common SOHC VTEC types I know of. The 4-cyl and 6-cyl SOHC VTEC.
Where are the camshafts located in a SOHC engine?
A single overhead camshaft (SOHC) engine has just one camshaft located in the cylinder head. Depending on the engine design, the camshaft may operate either rocker arms or cam followers to open the individual intake and exhaust valves.
What does a SOHC VTEC engine do for You?
The early SOHC VTEC only had VTEC on the intake, later Honda figured out how to do VTEC on both intake and exhaust with a SOHC. VTEC allows for higher power or better economy (and later, better inroads to a little bit of both) by allowing for different valve lift profiles based on ECU control (usually RPM and load, or other similar factors).
How many camshafts are in a DOHC engine?
In most DOHC engines, the camshafts act on cam followers or lifter “buckets” to open the individual intake and exhaust valves. DOHC engines with two cylinder heads have four camshafts (two per cylinder head). A dual (or double) overhead (DOHC) engine has two camshafts per cylinder head.