BMW unveils a new twin turbo in-line 6 cylinder engine!

[ebxr8240]

Twins "generally" come on boost sooner and stay alittle longer...
But there are so many variables these days its not funny..
Manufacterers try to have a linier power band and some of those single set ups on GTR's would be fairly big hit of power around 5000 rpm, they couldn't sell them new like that.. F1 and turbo's with tech these days they would be making 2000h.p and racing at 1500h.p..Thats with a 1500 engine also...Tech in engine management has changed that much..Single is generally less expensive..Twins maybe better on smaller capacity engine with high output? Compared to 4.0 doing it easy.. Besides I'd let the BMW engineers do there thing..Who are we to argue????

[Pieoter]

The failure of the B4 in Australia was becuase subaru used different sized turbos in the OZ spec B4 than the Jap spec and adjusted the fuel maps for OZ fuel. Doing this would usually be ok but they didn't adjust the turbo cross over point so the car was left with a massive midrange torque gap as the small turbo was shut down and the larger unit was still spooling. This didn't happen in the JDM.

The real advantage of twin turbos comes in when they are used sequentially. Thus eliminating turbo lag but these systems are heavy and complex, BMW have got a great sequential turbo diesel that makes tons of power and can rev very high for a diesel 5k RPM redline for a diesel is very good.

Generally drag cars use single turbos as its more efficient(power wise) and they don't car about lag. But ALL the top skylines go back to using twin turbos simply because single turbos run out of puff and can't feed the engine so two are needed.

[Bossxr8]

Originally Posted by Iphido

The Ford Territory Turbo
The Ford Fairmont Ghia Turbo

I don't understand what you are saying. There are two turbo territories. Using your logic then there should be two turbo falcons. Falcons still currently outsell Territories, if anything there should be more volume there.



If there are two Turbo territories, why can't there be two turbo Falcons?
The regular Turbo Territory equates to a XR6 Turbo and the Ghia is the special luxury version.

I honestly can't see any reason why Ford wouldn't release a special Fairmont Ghia turbo with a special colour interior (perhaps black) and a few other tid bits combined with 18" wheels. Gawd knows the V8 Ghia is really going to struggle against the 30Kw more powerful 6.0L Calais.

Would be a decent market, for people who want something a bit more special, but don't want the fugly LWB cars and have promised themselves never to buy a 4wd.

I would hazzard a guess and say it would be the sort of car the would entice more euro type buyers. Given that XR6T standard fair is pretty dam sparce and XR image may be a bit too bogan for them.

But hey, Ford offically told me there would never be a Ghia turbo of any sorts so I guess thats that.

There are two turbo Falcons, XR and F6. Why build another one that would be a similar price to an F6. If you want leather, climate control and all that stuff its available on both. What would a Ghia have that the others don't, it wouldn't look anywhere near as good and it may only have more adjustment of the seats and electrochromatic rear view mirror and some woodgrain. Big deal. The old folks who buy Ghias wouldn't want to touch a turbo engine.

The Territory is different as it doesn't have a sports version, so a base model turbo and a luxury turbo spreads the development dollars across 2 models. Having just a Turbo Ghia would put it out of reach of most people.

You need to face facts, a Turbo Fairmont Ghia isn't going to happen, so please just let it go.

[Biggoggs]

A short video (~12MB MP4) of the engine, and a suit talking about it at http://vodcast.bmw.com/stories/1430536/

The whole point was not to make a turbo kw monster, but make a smaller turbo engine feel like a large N/A. The `direct injection' sounds a bit like a gimmick, probably something BMW enthusiasts will have to fix 10 years from now (like Ford's EA, perhaps).
Perhaps this electronic injection-injection is a step towards electronic valve actuation...

[Gammaboy]

Originally Posted by Steffo

Ask Porsche why twin turbo systems work well. Just look at the 911 Turbo, 911 GT2, 911 GT1, 962 LeMans...

In those things, theres a single word that covers it. Packaging.
Easier to engineer the plumbing and turbo placement for a twin than a single....