Subaru Diesel
 

[url]http://www.drive.com.au/Editorial/ArticleDetail.aspx?ArticleID=45405&vf=2[/url]

Can't wait to see how it goes....I'm a massive turbo-diesel fan.

My next major car purchase is definitely going to be either an Astra TDi or a VW Golf TDi, but this could now be an option :)

Imagine what it would sound like.....sorta like the psi performance dyno room....constantly pinging HAHAHAHAHAHA

I'll be interested in seeing what volume/size motor they will bring out i.e., 3ltr?? A forry with lift kit/body lift/decent shocks/springs, underbody bash gaurds, etc would be a great light weight field vehicle with diesel making it easier to use out bush :icon_wink

I dont see diesel cars being as popular here as europe.
If for no other reason, our diesel isnt cheaper than petrol. Might be wrong though, just guessing.

More options to replace diesel in the future than unleaded.

Also, considering you get more out of a tank of diesel than ULP - Could work out the same for some/many vehicles.

About time they brought in a diesel.

[QUOTE=gumby2006]I dont see diesel cars being as popular here as europe.
If for no other reason, our diesel isnt cheaper than petrol. Might be wrong though, just guessing.[/QUOTE]

They're getting there!! You'd be surprised how popular they've become in the past 12 months.

[QUOTE=gumby2006]I dont see diesel cars being as popular here as europe.
If for no other reason, our diesel isnt cheaper than petrol. Might be wrong though, just guessing.[/QUOTE]

Diesel may be more expensive per litre but kilometers per litre it works out cheaper to run Diesel over ULP or LPG.

While on the subject BP have now have released a Ultimate Diesel fuel.

[url]http://www.bp.com/sectiongenericarticle.do?categoryId=9020205&contentId=7036915[/url]

didn't the top gear fellas run on McDonald's chip frier fat for like 1000 miles using a diesel engine?

[QUOTE=pete gopal]didn't the top gear fellas run on McDonald's chip frier fat for like 1000 miles using a diesel engine?[/QUOTE]

They sure did and it was in a VOLO if I can remember correctly

so next time you buy a car joe, when u go thru maccas drive thru ask for a medium big mac meal + fill up :D

Significantly longer engine life from diesels..

Bump for boosted boxer diesels!!!

[QUOTE=EXPLICIT]Imagine what it would sound like.....sorta like the psi performance dyno room....constantly pinging HAHAHAHAHAHA[/QUOTE]

:laughing6 :laughing6 He likes his AFR's like his females... 14-16.

[QUOTE=gumby2006]I dont see diesel cars being as popular here as europe. [/QUOTE]

try leaving the city

[QUOTE=vyper]
Also, considering you get more out of a tank of diesel than ULP - Could work out the same for some/many vehicles.
.[/QUOTE]

Have you ever thrashed a diesel, once they are out of their very narrow power band, they suck the juice. Untill someone brings out a diesel that doesnt feel like a falcon(which due to technical reasons, is not that easy), i will never like them.
Great for just driving around slowly, when they do return good fuel ecconomy but atleast not what i want.

Also, from experience, diesel engines are actully MORE EXPENSIVE to keep running correctly than a petrol engine, and have higher maintence, any diesel that smokes under anything but flat out acceleration is not running correctly and wasting fuel.

Just as a side note, Landcruiser and Patrol sales certainly seemed to have slumped since the mining boom

[QUOTE=WhiteRX]Untill someone brings out a diesel that doesnt feel like a falcon(which due to technical reasons, is not that easy), i will never like them.[/QUOTE]

Drive an Audi A6 3.0 TDi.

Audi A8 TDi.....

whats that skip?

240kw, 760Nm? Bi-turbo V8?

[QUOTE=BALISTC]Drive an Audi A6 3.0 TDi.[/QUOTE]

I havent driven one yet, though im sure it is proberly as quick as a NA petrol engine of the same size, though proberly down on torque. driven plenty of bmw and vw diesel's though and they all have a torque band of like 2500rpm max, how boring. But still, if it is the type of car that you like then go out and enjoy it.

Common diesels aren't exactly built to be thrashed?

Diesel torque > ULP torque.

[QUOTE=WhiteRX]I havent driven one yet, though im sure it is proberly as quick as a NA petrol engine of the same size, though proberly down on torque. driven plenty of bmw and vw diesel's though and they all have a torque band of like 2500rpm max, how boring. But still, if it is the type of car that you like then go out and enjoy it.[/QUOTE]


Proberly down on torque?

Proberly should check that.

i have found that diesel cars can be really nice to drive, the only passenger car i have driven is the mazda 6, which i have found to be a really nice to drive. yes they do run out higher up in the rev range but they are really good on fuel so why worry!

if you are buying a car to be cheap on fuel why are you trying to thrash it anyway??

[QUOTE=WhiteRX]I havent driven one yet, though im sure it is proberly as quick as a NA petrol engine of the same size, though proberly down on torque. driven plenty of bmw and vw diesel's though and they all have a torque band of like 2500rpm max, how boring. But still, if it is the type of car that you like then go out and enjoy it.[/QUOTE]

Yeah 450nm of torque at 1400rpm is pretty boring :)

Don"t Worry Joe! He Knows What He Is Talking About !!!!!!!!!11111

also, how many have been in a "modded" diesel?

double the boost, change the zaust...add fuel! Add lots of timing...

[QUOTE=BALISTC]Yeah 450nm of torque at 1400rpm is pretty boring :)[/QUOTE]

Yes, well to me :D my engine never sees the under side of 3200rpm, except when idling. Howmuch torque does it have at 7500 rpm? If it had that much then it would be making serious power... or is that when it goes bang, from such a long stroke and such heavy (but robust) engine componets.

Anyway as Tim said, they are great for just driving around slowly, give great fuel consumption if driven sedately. Diesel engines have loads of torque low down, but because of the long stroke required to get such high combustion pressures, their ability to revv is far less, due to being so far over square. The piston speed is too high.
They are also great, when designed to operate at a fixed speed, like generators.

Me personally, i love the feeling and sound of a engine going up to and past 7000 rpm :D

[QUOTE=WhiteRX]Yes, well to me :D my engine never sees the under side of 3200rpm, except when idling. Howmuch torque does it have at 7500 rpm? If it had that much then it would be making serious power... or is that when it goes bang, from such a long stroke and such heavy (but robust) engine componets.

Anyway as Tim said, they are great for just driving around slowly, give great fuel consumption if driven sedately. Diesel engines have loads of torque low down, but because of the long stroke required to get such high combustion pressures, their ability to revv is far less, due to being so far over square. The piston speed is too high.
They are also great, when designed to operate at a fixed speed, like generators.

Me personally, i love the feeling and sound of a engine going up to and past 7000 rpm :D[/QUOTE]

Why are revs so important to you? Just because an engine makes all its power between 1000 and 4000rpm, does that make it shit?

Most diesel's have extra gear ratios to keep the engine in its power band. 6 speed's are the norm, auto and manual.

You dont have to rev them to go quick, and most diesels will be just as quick as their petrol counterparts, but with a LOT more torque, which makes them more driveable around town and a lot more enjoyable to drive. You get a real push in the back sensation, more than with a petrol engine.

Over square, heavy engine components and long stroke? Thats making some huge generalisations. Many diesels have forged pistons and alloy heads, just like good petrol performance engines.

You can drive a diesel around VERY quickly, with very little rpm. They don't have to be driven slow.

In fact, in my uncles Audi A6 diesel, I drove it around and averaged across two tanks, just under 10 litres per 100km. That included 75% city driving, and the rest freeway driving. It even included a Fri nite cruise that involved a LOT of heavy acceleration. Yes, gearchanges were at 4500rpm, but it hauled arse below that!!!

I'm not arguing about this any further, but let me just say, you best be test driving some modern euro diesels...you might be pleasantly surprised.

[QUOTE=BALISTC]Why are revs so important to you? Just because an engine makes all its power between 1000 and 4000rpm, does that make it shit?

You dont have to rev them to go quick, and most diesels will be just as quick as their petrol counterparts, but with a LOT more torque, which makes them more driveable around town and a lot more enjoyable to drive. You get a real push in the back sensation, more than with a petrol engine.

Over square, heavy engine components and long stroke? Thats making some huge generalisations. Many diesels have forged pistons and alloy heads, just like good petrol performance engines.

I'm not arguing about this any further, but let me just say, you best be test driving some modern euro diesels...you might be pleasantly surprised.[/QUOTE]

I do understand where you are coming from, and im not saying that they are shit. What i am saying is application. If your happy with a diesel then thats cool.
I have driven quite a few euro cars, well hundreds, as i work for a workshop that specialises in euro's, and know that i dont really like the feeling diesels have. Just me though.

Over square, heavy engine components and long stroke are all requirments of a diesel engine. They need the stroke length/bore stroke ratio to ignite the air/fuel mix, otherwise they would need spark plugs. The air being compresses generates the heat to initiate combustion.
The engine needs to have heavy components to resist the constant detination, otherwise the engine wouldnt last very long at all. And they need a heavy flywheel to keep them going at idle, due to so much combustion pressure.

all alloy engines is where it's at. Japs have used them since the 70's

I like reving my engine. I personally love the feeling, the sound, and knowing whats going on inside. I really admire some of the engines that honda, mazda and mitsubishi make, many are understated and feel fantastic at 7000+rpm
Petrol engines use the gearbox to make the torque, that makes the car just as quick.
Not to mention that a petrol engine and diesel of the same size and design, the petrol will always be faster(99% of the time) . Not more fuel efficient, but faster.

Anyway, not trying to be rude or anything, just a bit of fun :)

Audi diesel? VW diesel? BMW diesel?.....pfftt :rolleyes:

[url]http://people.bath.ac.uk/ccsshb/12cyl/[/url]

[QUOTE=AIG]Audi diesel? VW diesel? BMW diesel?.....pfftt :rolleyes:

[url="http://people.bath.ac.uk/ccsshb/12cyl/"]http://people.bath.ac.uk/ccsshb/12cyl/[/url][/QUOTE]

Now thats a engine :D

WhiteRX, for further interest...

[url]http://en.wikipedia.org/wiki/Audi_R10[/url]

5.5L All alloy V12 Diesel...485kws (limited) 1100Nm's...Twin GT3076R's running 43psi....

Chop!

How would you go ( I know bore / stroke will be different but hell your putting in custom parts anyway ) starting with the diesel block which will be built to take hugh chamber pressures and then build up a petrol version.

Huge potential for PSI but still the funability of the current engine.

Could you make it work???? Surely with the bucks some are spending on builds this could be a unique and awsome project.

[QUOTE=WhiteRX]Now thats a engine :D[/QUOTE]

Real man's engine!

Imagine the clearances - Probably works in 10's of centimeres.

^^^ lol, bet the clearances are better than ramon's cossie engine. What a beast!
5,608,312lb/ft@102rpm!!!!! That 7,603,850Nm!!!! :eek:

Love the stairs going into the sump from level with the crank. Imagine doing an oil change, it'd take 3 weeks to drain lolzer

[QUOTE=phizzle]
Love the stairs going into the sump from level with the crank. Imagine doing an oil change, it'd take 3 weeks to drain lolzer[/QUOTE]

Hope they aren't running Motul :D

Some of the modern japanese diesels are great aswell. I have been driving a new 4x2 hilux diesel. I get (95% city cycle) between 8 and 8.5 l/100 km depending on how much weight I have on the back.

No doubt it rattles a bit more than a euro diesel however I have driven and ordered a new landcruiser sahara with the twin turbo v8 diesel in it. The thing pulls like a train. 650 nm will do that.

Brendon

[QUOTE=phizzle]^^^ lol, bet the clearances are better than ramon's cossie engine. What a beast!
5,608,312lb/ft@102rpm!!!!! That 7,603,850Nm!!!! :eek:
[/QUOTE]

There is almost a direct relationship between displacement and torque. Things like vvt et al make a small difference to torque but they are designed to aid power and driveability.

Look at some of the old lazy v8 pushrod petrol engines. Mega capacity, mega torque.

Brendon

[QUOTE=urabus]There is almost a direct relationship between displacement and torque. Things like vvt et al make a small difference to torque but they are designed to aid power and driveability.

Look at some of the old lazy v8 pushrod petrol engines. Mega capacity, mega torque.

Brendon[/QUOTE]
yes and no, while it's true that 99.9% of big V8's make great torque, displacement isn't the bottom line. Displacement is derived from stroke multiplied by bore diameter. Most V8's have a big fat bore and a good 5.5"+ of stroke which usually restricts max rpm to around 5500, 327 Chev's can be taken to around 8000 before major damage starts occuring. Torque is the turning force and is closer related to the length of stroke combined with the offset of the big end compared to the centreline of the crankshaft. As you can see from the pics, not only are the pistons absolutely fn hoooooge, the rods are too, way more out of proportion than you'd find in any other car engine. :)

what is said above is ture, torque is more defined by the length of the stroke compared to the bore. Long stroke restricts max engine rpm because when piston speed becomes too high there is too much stress on the rods, bearings, etc. Intake manifold design also affects torque as well as cam timing.

mazda have some great examples of intake manifolds that have up to 4 different lengths, which help to give the engine a massive flat torque curve. Combined with varible cam timing, you can get peak torque at all rpm's( to the limit of the cams grind and head flow)