Motors X form engine

DMF: what are you actually doing?
The hard part is getting the engines at EXACTLY the same rpm - if one tries to go faster it dumps power into the other, rendering it useless. You need to have a torque converter (i know about these now!) and a couploe of UJ's between the two engines.
No reason why you can't do it though - just need absolutely rigid mounts.

 

Would be completely useless for a tractor trailer. Trucks employ inline engines because they allow for an enormous amount of torque with relatively little horsepower. Also, as Amon was saying, with tractors trailer configurations, the bigger the cylinders the better. With 24 cylinders, the pistons would probably be smaller than a pop can cut in half, versus large diesel engines that may have cylinders six inches across. For example, the Caterpillar C15, is a 15.2 liter, inline six cylinder diesel engine with 625 horsepower and as much as 2200 ft/lb of torque. So while you might not get the best horsepower per cubic inch, you get an enormous amount of torque.

 

Not necessarily true. As long as each engine has the same throttle input you can just gear together the output from each engine. Tiger do this on their twin engine kit-cars, as have various bulldozers and tanks over the years. The tractor pulling crowd do it too, usually with more engines too.

 

That's just awesome

 

Lmao... that's one way of getting the most out of 24 cylinders. Big-ass superchargers too.

 

http://www.woof82.co.uk/BlackPower.wmv

http://www.woof82.co.uk/GreenFighter.wmv


Edit: fixed, thanks Xen0phobiak

 

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I doubt it does to be honest. I think a straight-6 is meant to be about the smoothest arrangement in practice?

 

I think they are tbh, though I'm not sure if it is or isn't, can't say until I've been in them all!

 

For most cars, that's true. But when you approach high-displacement territory, you'll need to divide it into more cylinders to smoothen it out. Lorries are inline-6, but we all know how rough they run because of the huge cylinder volumes.

 

Remember the vw w engines are essentially two vr (or staggered inline) rather than v6 engines, so whilst wider than a v configuration engine, is significantly smaller than two v engines would be.

A v12 gives the smooth power delivery of a straight six and has constant positive torque (as seen on 8 cylinder and higher engines), any more cylinders from a design point of view are supurfluous and come from practical or marketing reasons rather than technical. For example the veyron used an extended version of their existing w12 design, which itself came from their vr6. Adding an extra two cylinders to either side of the block was likely a far simpler and less costly design alteration than a complete redesign of a 'new' higher capacity/output v/w 12 engine.

 

Why aren't V10s seen more often on road cars? V8 and V12, but no V10.....

 

Two words: Dogde viper.
Google it

 

The more cylinders, generally, the higher capacity you get. In Euro-cars most of them don't need anything bigger than a V8, because they're very easy to tune whilst still retaining some economy because of their (usually) smaller displacements.

Don't forget BMW make the M5's and M6's with V10's, obviously Dodge have an 8.7 litre V10 in many things (including the Viper). Then you've got VW's V10-powered cars, i.e. the Murcielago and Gallardo.

There're probably a lot out there, but often a V8 can provide more than enough power, otherwise companies tend to jump up to V12's, Mercedes being a prime example.

 

Yeah, I'm not sure why V10 engines aren't that popular. Maybe because of the strange mix between longer piston strokes and cylinder volumes of regular V8s and smoother operation of V12s. Plus, V12s are usually more responsive than V8s and can also be very loud (Lamborghini Countach).

 

I'm sure there are some technical reasons why it's tricky to get a properly refined V10, hence why they're only really used in sports cars/unrefined pickups.

I can't decide which I prefer though, because the Murcielago has a beautiful sound to it, although most of the Merc-made V12's in things like Zonda's have a brilliant sound too...

 

As long it isn´t a rice burner that has an exhaus system that makes it sound like a cargo truck it sounds good

 

You should hear a Nissan RB26DETT with a Mine's VX aftermarket exhaust. It's more erotic than even a 3.6L Porsche engine, although similar-sounding.

 

Induction noise > exhaust noise.

 

Well the smoothest engine I have ever had the pleasure of playing with has been the inline 6 built by gm. The 4.2L engine revs like a 4 pot and provides one of the smoothest power curves that I have ever seen, that includes the bmw 2.5L inline 6 and the 3L version, although I haven't been in one of the newer TT inline 6's from bmw.

The reason you don't see very many v10's is because of cost and balancing issues. You can safely spin a production line inline 6 to 8k rpm but not a v8 or v10. Usually the more cylinders you have the harder it becomes to balance them and the harder it is to feed enough air in them. For example Ferrari uses individual throttle bodies for their engines witch becomes very expensive for regular production cars, thats the secret to Ferrari engines, not to mention the fully blueprinted and balanced hand built engines they use.

Production wise the high number of cylinders means more parts to cast, and also means more fragile the engine.

Simply put 4cyl 6cyl and 8cyl engines are easier to tune and produce than other engines on the market. V6's are no joke either when it comes to balancing but properly fed they can produce some monster torque, take the buick 3.8L v6 with a turbocharger, it only made about 280hp but it can produce as much as 350lb of torque at the crank. The jaguar v12 in the xj-s from the mid 80's to the mid 90's is a example of why a v12 is not necessarily better than a v8 or inline 6, for one they were very unreliable and secondly they pumped out monster heat and also the reason why those cars are worth peanuts compared to other cars in it's class. In the states they even sell a conversion kit that allows you to run a Chevy v8 in the xj-s while gaining hp and reliability.

I suggest you guys read some when it comes to tuning, then form a educated decision.