Often there are two camshafts, one for the intake and one for exhaust valves, creating the dual overhead cam, or DOHC.

While today some cheaper engines rely on a single camshaft per cylinder bank, which is known as a single overhead camshaft ( SOHC ), most modern engine designs ( the overhead-valve or OHV engine being largely obsolete on passenger vehicles ), are driven by a two camshafts per cylinder bank arrangement ( one camshaft for the intake valves and another for the exhaust valves ); such camshaft arrangement is known as a double or dual overhead cam ( DOHC ), thus, a V engine, which has two separate cylinder banks, may have four camshafts ( colloquially known as a quad-cam engine ).

Its 2. 0 L TSI engine is rated at 6, 000 rpm and at 2, 500 rpm, large air intake openings in the front bumper, an integrated front spoiler, bi-xenon headlights, larger rear roof edge spoiler, black diffuser, dual exhaust with chrome tailpipes, Talladega 18-inch alloy wheels.

It included a special intake manifold, modified camshaft, special valve springs and dampers, a 750 CFM Motorcraft Carburetor, 4-bolt main bearing caps and dual exhaust.

Also the intake manifold was changed to include a dual length system which involved intake runners of two different lengths and a valve to switch between the two.

| valvetrain = Two intake and two sodium-cooled exhaust valves per cylinder actuated by dual overhead camshafts

High intake of alcohol ( ethanol ), a significant cause of hyperuricemia, has a dual action that is compounded by multiple mechanisms.

The 1971 Type 2 featured a new, 1. 6 L engine with dual intake ports on each cylinder head and was DIN-rated at.

W-30 option cars were equipped with Ram Air intake hoses leading from a chrome-topped dual snorkel black air cleaner to special under-bumper air scoops and set off by bright red plastic fender wells.

From the 4B1 engine family onward, MIVEC has evolved into a continuous variable valve timing ( CVVT ) system ( dual VVT on intake and exhaust valves ).

A 4-barrel carburetor was mated to a high-rise, dual plane intake manifold.

They featured an aluminum intake manifold with three two barrel Holley carburetors and a dual points ignition system.

The Hyper Pak consisted of a very-long-ram intake manifold meant to accept a Carter AFB 4-barrel carburetor, the AFB carburetor itself and an appropriate air cleaner, dual ( front-3 and rear-3 ) cast-iron exhaust headers, a large-diameter exhaust Y-pipe to connect to these dual cast-iron headers, a larger muffler, a 276 °- duration camshaft with appropriate valve springs and pushrods, a heavier-duty clutch, a manual choke control, a starter motor modification template and, in the full-race version of the package, high-compression pistons designed to increase the engine's compression ratio to 10. 5 from the stock 8. 5.

A double overhead camshaft ( DOHC ) valvetrain layout ( sometimes incorrectly known in American parlance as ' dual overhead camshaft ') is characterised by two camshafts located within the cylinder head, one operating the intake valves and one operating the exhaust valves.

It featured a timing chain, hydraulic valve lifters, a dual length intake manifold ( called " DISA " by BMW ) and an increased 10: 1 compression ratio.

As per the M42, the M44 has a dual length intake manifold ( called " DISA by BMW ).

*** Identification: Black valve cover with dual runner intake manifold

The DOHC 2. 0 liter non turbocharged engine had a dual stage intake manifold.

The valvetrain is a dual overhead cam ( DOHC ) design with a continuously variable valve timing control system ( CVTCS ) on the intake valves.

It has dual CVTC for both intake and exhaust, microfinished camshafts and a redline of 7, 500 rpm.

This engine has an iron block, aluminum cylinder heads with 4 valves per cylinder and dual overhead camshafts, variable valve timing on the intake camshafts, coil-on-plug ignition, and an available variable intake manifold ( 5-speed only ).

* 1982 – 1983 Supra 5M-GE had dual V-belt accessory drive, 65 amp alternator, square-tooth camshaft belts, 8. 8: 1 compression ratio, shallower oil pan, and round intake runners.

The dual runners were switched by means of a butterfly valve assembly, unfortunately in early models, the screws were prone to backing out and subsequently making their way through the motor, wreaking havoc on the piston faces, combustion chambers, and possibly valves on the way through.

One problem with this approach is that it is unknown whether quantum gravity will actually conform to a simple and elegant theory, as it should resolve the dual conundrums of special relativity with regard to the uniformity of acceleration and gravity, and general relativity with regard to spacetime curvature.

One normally obtains spaces of distributions by forming the strong dual of a space of test functions ( such as the compactly supported smooth functions on R < sup > n </ sup >).

One can also make the dual definitions.

Caliri designed the M184, the team's prototype Formula One car ( intended as a dual purpose design for the new Formula 3000 ) around Alfa Romeo's V8 turbocharged engine but when engineer Carlo Chiti left Alfa Romeo to found Motori Moderni, Minardi became the only customer for his new V6 engine design.

One then restricts the maps to only those maps that commute with these isomorphism ( restricts to the naturalizer of η ), in other words, restrict to the maps that do not change the bilinear form: The resulting category, with objects finite-dimensional vector spaces with a nondegenerate bilinear form, and maps linear transforms that respect the bilinear form, by construction has a natural isomorphism from the identity to the dual ( each space has an isomorphism to its dual, and the maps in the category are required to commute ).

One, the Walcheren Expedition of 1809, involved a dual effort by the British Army and the Royal Navy to relieve Austrian forces under intense French pressure.

One is the dual object view, according to which the thing-in-itself is a distinct entity from the phenomena it gives rise to.

One of the most unusual features of the Master System is its dual media inputs: one cartridge slot and one card slot.

One of them, David Williams, leased the Winter Quarters Mine from the Pleasant Valley Coal Company from 1880 to 1885, operating in the dual capacity of mine manager and bishop of the local LDS Ward.

In 2006, she appeared in three made-for-DVD releases: National Lampoon's Dorm Daze 2: College at Sea ( appearing again as " Marla " from the first film ), the action film Gamebox 1. 0 ( playing a dual role ), and The Chosen One, an independent animated film in which she provides the voice of the lead female character.

It showed the first real evidence of the twin guitar sound that would lead the band towards their greatest successes, particularly with the dual harmonies of " Wild One " and both guitarists ' soloing on " Suicide ".

One can consider the inverse matrix G < sup >− 1 </ sup >, which is identified with the inverse metric ( or conjugate or dual metric ).

One of the important unsolved problems in mathematics is the description of the unitary dual, the effective classification of irreducible unitary representations of all real reductive Lie groups.

One of the organizations embroiled in this controversy was the Cigar Makers ' International Union ( CMIU ), a group subject to competition from a dual union, a rival " Progressive Cigarmakers ' Union ," organized by members suspended or expelled by the CMIU.

Ra. One received negative reactions from film critics in India and abroad, while Khan received mixed comments for his portrayal of a dual role in the film.

One can define the Lie algebra of an algebraic group purely algebraically ( it consists of the dual number points based at the identity element ); and this theorem shows that we get a matrix Lie algebra.

One of the first things the students will learn as a Neophyte is that they are a dual being.

One of two options was suggested ; Southern Cross would drop one of its affiliations ( either Seven or Ten ) and TDT would pick it up ; or TDT would also become a dual Seven and Ten affiliate, and carry the programs that Southern Cross didn't broadcast.

One of the provisions made was the use of dual Māori and English names for geographical locations in its tribal area.

One of these college wrestlers ( in light blue, Matt Dunn ) gets a takedown for two points. In 1903, the first intercollegiate dual meet took place between Yale University and Columbia University.

Another essential ingredient in Mackey's work was the assignment of a Borel structure to the dual object of a locally compact group ( specifically a locally compact separable metric group ) G. One of Mackey's important conjectures, which was eventually solved by work of James Glimm on C *- algebras was that G is type I ( meaning that all its factor representations are of type I ) if and only if the Borel structure of its dual is a standard Borel space.

Prior to the One Nation gauge standardisation project in 1995, all four tracks at Goodwood were broad gauge, and the Belair line was dual broad gauge tracks.