whats the diffrence between a v6, vtec, and a v8 engine?

Question

is it faster, does it waste more or less gas?

Answer 1

The main difference between V6 and V8 is the number of cylinders.... also V4. There are other cylinder configurations as well like a straight 6 or straight 8 which is not angled out to form the "V" on the engine block. Traditionally the larger engine will provide more torque which is useful for towing and hauling heavier loads. The V6 is more fuel efficient by comparison as there are two less cylinders to fire while driving. As an important side note, new technology has enabled some car manufacturers to build "smart" engines (mostly V8's) that will open up all 8 cylinders while accelerating and return to 6 or 4 while using cruise control in an effort to use less fuel.

V-Tec is something that I'm not quite as familiar with and can't really explain. I hope that I did clear up the V6 and V8 portion of your question

Porterhouse

Answer 2

Speaking in general terms:

1. Larger engines make more power while using more fuel.
2. A V8, which has 4 cylinders in one bank and 4 more in another bank, is larger than a V6, which has 3 cylinders in one bank and 3 more in another bank; and both are larger than a 4 cylinder which is usually all in one bank although Porsche, Saab, Subaru, and VW have all made 4 bangers in a V or opposed configuration.
3. A larger engine weighs more and burns more fuel which creates more heat which needs a larger heavier radiator.
4. A larger engine/radiator requires a larger heavier frame.
5. The more weight an engine has to deal with the more fuel it burns and the more power it has to produce to have the same performance as a lighter vehicle.
6. VTEC is a Honda technology to make small engines switch to a high performance mode at high RPM which produces power similar to the larger engines while keeping their weight down.

There are exceptions to these statements; but they will give you an idea of the differences.

Edited. I just read the previous postings and for the most part they had some good answers although there were some inaccuracies such as: "The difference between a V6 and a V8 is the number of cylinders on two opposing banks, ie a V8 is an engine with two banks of 4 cylinders at about 40 degrees. The vtec engine would be more economical than the V8 if they both have the same capacity (ie 3 litre)." In a V8 the angle is almost always 90 degrees. The cylinder banks are only said to be opposing if it is a flat engine (180 degrees) configuration like some Ferrari, Porsche, Subaru, or VW engines. A VTEC engine wouldn't be more economical than a V8 of the same capacity; it would produce power similar to a larger V8 and be more economical than the larger engine.

Answer 3

v6 vtec is a honda engine with variable valve timings for the best economy and power at any given engine speed/load. The difference between a V6 and a V8 is the number of cylinders on two opposing banks, ie a V8 is an engine with two banks of 4 cylinders at about 40 degrees. The vtec engine would be more economical than the V8 if they both have the same capacity (ie 3 litre).

Answer 4

V6 - Engine configuration with 6 cylinders in a V shape. Used for compactness, but requires careful consideration to engine balancing because it is not naturally balanced. Crankshaft is phased at 120 degrees.

V8 - Engine configuration with 8 cylinders in a V shape. Considered the best configuration for performance and reliability. Crankshaft can be phased 180 degrees (flat plane) or 90 degrees (cross plane). Flat plane engines are high pitched and smoother, but cross plane engines have a low pitch sound that is favorable to the listener (think American muscle cars).

VTEC - Honda s Variable Valve Lift system. In a normal engine, the lift and duration of your valves are set by a set of cams. The requirements for low RPM and high RPM torque are different, which is why an engine tuned for economy has a lot of torque early on, but runs out of power at high RPM, where a race engine has little torque until it reaches a high RPM, where the engine makes a substantial amount of torque at high RPM, providing much more horsepower. VTEC is a system that provides cams for both low RPM and high RPM, switching to the high cam at the optimal RPM (where both cams make the same amount of torque). This creates an engine that is both efficient and driveable daily, but also provides performance on demand. The Honda shop manual covers this system in detail and provides charts and diagrams for your benefit. Similar systems are the Nissan VVL (VTEC licensed to Nissan) and Mitsubishi MiVEC. Technically, VTEC can be installed on any engine configuration and would provide improved performance or efficiency. This is NOT Variable Valve Timing, where the cams are phased to change the opening and closing duration or timing, and can be used in addition to such a system.

Answer 5

You'll get some fun answers with this one.... A v6 is an engine with 6 cylinders designed into the motor. A v8 is an engine with 8 cylinders in the engine. More cylinders means more power, but also means more gas consumption. A v6 is a good all around engine because it offers useable power with good economy. a v8 is more geared towards performance and less around economy. Up to you which you'll choose. Good luck with the insurance

Answer 6

Honda V8 Vtec

Answer 7

V6 and V8 are engines with the pistons in a "V" configuration, or angled with respect to the main shaft. the 6 and 8 are just the number of pistons. V engines are more powerful for their size compared to "inline" engines, also more expensive. Vtec is honda's version of the engine, which has computer controlled variable valve timing, which increases output and fuel economy.

Answer 8

VTEC is an engine model line from Honda. The basic concept is electronically controlled valve timing. It generally improves economy and power output at the same time.

V6 or V8 refers to the number of cylinders. VTEC engines can be designed with any number of cylinders.

Answer 9

6 cyllinder & 8 cyllinder engines. the higher, the more powerful

Answer 10

nothing one you drink.,the other just stinks