V config engines

ceecookie SG

Does V config engines(such as V6,V8 to V16) engines need at least even cylinders to run?Eg that means having an odd cylinder out of a say V6 will render a engine unable to operate?

Such as in GM's Displacement on Demand on the Cadillac Sixteen's V16 engine,which promise to "shut down" 5 of its cylinders to conserve Fuel.As u can see its 5,so the engine will be left with V11..will it be able to run?

seow SG

Why would the designers perform suicide on the car by designing it in such a way that it would not even be able to move? Laughing

buses_galore SG

all i know is that this is called Displacement On Demand(DOD)other than that i dun know cause I hate american cars their engine engineering sucks…..it is now known as active fuel management system….american cars sucks they seem to be living by the principal’there is no replacement for displacement’

tomsss SG

The only Vee engine that i know that runs with odd number cylinder configuration is the one in the MotoGP bike Honda RCV211, it runs a V5 motor. So far it’s running quite well in the races… still in use some more. Maybe can check out that MotoGP for answers why Honda chose that odd configuration

sir_boris SG

i'm keen to know and for the benefits of many here what's your basis to say "american engine engineering sucks"?

may i know what engine you are having now?

tks.

nOrmalbOi SG

bus engine lor!!

10 litre twin turbo V8!! diesel

Laughing

kaobeikaobu SG

Laughing

Anti_AhSiah SG

VW Bora has a V5 Engine too.

SBS9828X SG

think its more of an inline engine but with a small angle between cylinders

AE86tofu SG

lets give u one good example....

this is a Mark X

one look at it and u know that its a wonderful car....just by looking at it

this is a BMW 7 series

again one look at and and u'll know that all is well

this is a Chrysler...its called the sebring....

one look at it and u'll know it will be RUBBISH

buses_galore SG

I apologize if I have offended anyone as it is just my personal opinion on American cars.American cars have a large displacement but very little output wuich adds nothing but weight to the car.i DUN LIKE THEIR ENGINEERING cause they could have squeezed out so much more HP from the engine.The thing which I salute the Amerians for is the interior design of their cars.To quot an example, those muscle cars of the 1960s had lots of displacement but the output was considered low for that kind of displacment.On the other hand however, the design of the interior e.g gauges, trim, upholstry is the best one can find.

These are my personal views on cars please do not be offended. Thank You.

tomsss SG

Well they came up with the Hemi…. their V8s were almost virtually indestructable

buses_galore SG

AE86 I like your style Cool Cool Cool
yar and also American cars are fuel guzzlers especially those from the 1960s as oil was very cheap back than.....maintaing those cars now adays must be very expensive...they are also very heavy

AE86tofu SG

look at the interior of an american car and u will ask yrself..."look at those plastics where are they getting these things???" appalling in every way...yes the corvette may be fast but hey...LEAF SPRINGS...who uses them??? and y u need a 7.0L pushrod engine to propel a car? BMW or mercedes dun need that much displacement to create 500BHP Confused 5L is more than enough...and u can live with them everyday...can u live with a car that has suspension brought over frm charlton hestons chariot in "Ben hur"? Laughing and eveytime u go over a pothole yr spine shatters

AE86tofu SG

true but that HEMI is only for pushrod engines and thats when the time where u cook food on a wood burning stove Laughing

Gedanken SG

OK, first things first. The number of cylinders in an enigne is irrelevant. As long as each combustion stroke turns the crankshaft through and equal degree of rotation, separate from what is being driven by the strokes of the other cylinders, you're fine. For example, the power stroke of each cylinder in a 4-cylinder turns the crankshaft through 90 degrees, and because they don't overlap, the four 90-degree turns add up to a full 360-degree rotation.

Things go out of whack when this smooth delivery over the 360 degrees is upset. Try pulling out one spark plug lead when the engine is running and it immediately becomes obvious how the engine's vibration increases, because the power is only being delivered through 270 degrees, throwing things out of balance.

In the case of a 5-cylinder engine, as long as each cylinder delivers power through separate turns of 72 degrees, you're fine.

Now with this displacement-on-demand approach, if five out of 16 cylinders suddenly stop firing, that's 112.5 degrees of rotation where the crankshaft isn't being powered, and that engine's going to run rough as hell. It places uneven loads on the crankshaft bearings, which cannot be good for the life of the engine.

For the second point, I'm not too impressed with American car engineering at all. They all seem to take the Tim the Toolman approach to things - if you want a car to go faster, simply whack a bigger engine in it. They don't seem to take the time to squeeze more power out of each CC or improve handling. it's just ham-fisted.

sir_boris SG

I believe the topic of discussion was on "american engine engineering".
I'm no fan of american cars too, and i'm a big fan of toyota. And I cant afford the cheapest of bmw available here.

say... the company tat make chrysler is the same 1 that make mercedes benz.

sir_boris SG

No offence taken and I'm not pro-american neither am i anti-american. I was keen to know perhaps on things you knew which i din know.

I do own a german car, but with an american engine in it. It's a 1.6 and the car is 1.25ton kerb weight. In terms of speed, i cant find any other engine/car can match it (must be same class ok). in terms of fc, it beats the altis, let's not mention nissans and koreans.

I had the same concept of american stuffs being big and wasteful too. Not anymore.

1960s engines.... hmmm.... I suppose in those times, european engines were abt the same. jap engines were.... hmmm..... sorry i duno much abt history.

sir_boris SG

One of the best mass produced car in handling is ford le.

[email protected] SG

i have to laugh. we're not in the 1960s anymore, and the interior trim of american cars nowadays look like they were done halfway.

meanwhile, back in the 60s, displacement was about the only economical (in terms of design and manufacture) way to get power. And kudos to the americans for having the guts to build it. no doubt they handle like crap, but at least they dared to make it.

of course in today's world where power is easily gotten, the american's automotive philosophy is no longer adequate, especially if their brands are to survive.