The next diesel engine for Citroen...
Moderator: RichardW
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A Lexus engine? It couldn't be diesel - Lexus hasn't enter in that world yet, but these new engines may change their minds... One of the arguments of Lexus president for staying within petrol was that diesels are too noisy, have vibrations, and do not respond as a Lexus driver demands... Now, this new refinement solves those problems, even if the design demands a 6 or 7 speed transmission. What matters is the final result.
If petrol engines don't improve fast, soon there will be no interest in using them, except maybe the desire of owning something different from the crowd...
If petrol engines don't improve fast, soon there will be no interest in using them, except maybe the desire of owning something different from the crowd...
There was an interesting article in Diesel Car a while ago about car manufacturers trying to get diesels to behave more like petrol engines - so that they wouldn't need to have such a range of gearboxes etc. I believe it was Vanderwell who were doing the research. Looks like PSA are going the same way.
The big advantage of a diesel is that it lets you drive in a relaxed way, bags of low down torque, no need to rev the nuts off the engine, no need to change down 2 clicks before overtaking . . .
//NiSk
The big advantage of a diesel is that it lets you drive in a relaxed way, bags of low down torque, no need to rev the nuts off the engine, no need to change down 2 clicks before overtaking . . .
//NiSk
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Or a stepped piston engine....see[url]http://users.breathe.com/prhooper/speng.htm[/urlI]
Apparently, there's now a diesel version.
On second thoughts, a bit too uncomplicated and not enough parts for a Citroen engineer......
Apparently, there's now a diesel version.
On second thoughts, a bit too uncomplicated and not enough parts for a Citroen engineer......
http://users.breathe.com/prhooper/speng.htm
Damn technology! try again....
Damn technology! try again....
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This evolution is natural and a consequence of the technological options.
Still, this tendance is not new - In the 2.0Hdi you're forced to shift often, when compared to the 2.1td. In fact, the 2.0HDi behaves more like a petrol than a mechanical diesel.
This progress in diesel engines justifies the use of automatic transmissions, otherwise it will be unpleasant to drive.
Still, this tendance is not new - In the 2.0Hdi you're forced to shift often, when compared to the 2.1td. In fact, the 2.0HDi behaves more like a petrol than a mechanical diesel.
This progress in diesel engines justifies the use of automatic transmissions, otherwise it will be unpleasant to drive.
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if they can get 200brake at 7.1l/100k why cant they keep the 110 brake of the hdi but improve economy instead? I know modern engines produce more power more efficiently than the engines of 30 years ago, overall though the improvements in economy are nothing like as dramatic as the increase in power, but sooner or later someone is going to legislate the fun and speed out of motoring (have they done that already )) ) if the rate at which we cosume oil is not improved. In all the years I've run my GTI turbo only once have I run for any length of time at 140mph +, I'd never want to deny anyone the adrenalin rush of such performance, but most days I get in my car to go to work, I work for myself so lugging capacity and economy are much more important to me on a day to day basis. I have two friends who have A6 2.5 turbo diesels, very quick, very refined and Very heavy on the juice. Modern technology has made the diesel more and more like a petrol engine not only in performance but also in economy. yet the HDI engines have shown that you can improve economy without reducing performance ( 0-60 times for xantia 1.9 vs 2.0 HDI are nearly the same according to the used car tests section of Autotrader)
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Last edited by ghostrider on 22 Feb 2011, 05:51, edited 1 time in total.
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I'm sorry Ghostrider: but your comments on diesel fuel economy do NOT apply to BMW engines.
Audi 2.5V6 engines are very noisy on startup: so much so I would be deafened in my garage on a cold morning.
Small diesels achieve >55mpg in overall use: show me an equivalent sized petrol car that can on a like for like basis.
I has an Audi A4 110bhp: very fast and >50mpg but very coarse. Comparing a Citroen 1.9 diesel to it : Audi scores 25% better economy, 50% more noise and coarseness...
Audi 2.5V6 engines are very noisy on startup: so much so I would be deafened in my garage on a cold morning.
Small diesels achieve >55mpg in overall use: show me an equivalent sized petrol car that can on a like for like basis.
I has an Audi A4 110bhp: very fast and >50mpg but very coarse. Comparing a Citroen 1.9 diesel to it : Audi scores 25% better economy, 50% more noise and coarseness...