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  1. Join Date
    Jun 2007
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    1,343
    #1
    CRDi - Common Rail Direct Injection
    (history: 1994 Fiat Group collaborated with R. Bosch to enhance and complete injection systems for diesel engines -outcome: CRDi)

    Ito ang bragging nila noon ng sumikat yun ng 2005 compared to conventional diesel engine:

    >>> 30% more powerful

    >>> 70% more torque ..... (aha!!)

    >>> Lower fuel consumption 30-35% more mileage..... (24km/L daw CRDi)

    >>> High fuel effeciency

    >>> Improvement in drive quality (malabo 'to)

    >>> Far quieter due to its hydraulic accumulator or "rail" that reduced noise, vibration and harshness (NVH) and i qoute "more than matches that of a gasoline engine".

    bottom line: ITS FAST, QUIET AND ECONOMICAL

    well, is this so????..after sometime in the road now dito sa atin??

  2. Join Date
    Jun 2007
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    #2
    sabi CDRi is in latest BMW models na?... eh naunahan na sya ng Mbenz na halos panabayan ng japs at Kors cars.

  3. Join Date
    Oct 2002
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    21,433
    #3
    It's definitely not more powerful. Look at the engines of the new Pajero (4M41) and Patrol (ZD30). The power and torque output did not improve when both engines were equipped with CRDi.

  4. Join Date
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    #4
    Quote Originally Posted by boybi View Post
    It's definitely not more powerful. Look at the engines of the new Pajero (4M41) and Patrol (ZD30). The power and torque output did not improve when both engines were equipped with CRDi.
    I think that was because they already had direct injection to begin with, hindi nga lang common rail. The 4M41 has been going under the Di-D badge since the launch of the Gen3 pajero some 8 years ago.

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    #5

  6. Join Date
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    #6
    Quote Originally Posted by boybi View Post
    It's definitely not more powerful. Look at the engines of the new Pajero (4M41) and Patrol (ZD30). The power and torque output did not improve when both engines were equipped with CRDi.
    But those are ancient engines.

    CRDi engines are best built from the ground up, not just modded.

  7. Join Date
    Mar 2005
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    8,837
    #7
    from 2k2 - 2k6:

    1. i drove a 2.0L 1st gen CRV 4WD M/T - gas guzzler na siya para sakin at 5km/liter

    2. i drove a 2.2L 2nd gen Strada 4x4 M/T - thrifty sa fuel pero parang tangke naman sa bigat i-drive. nanakit ang likod after a 1 hour bumper to bumper rush-hour traffic. hindi ko na kelangan mag-gym sa hirap eh

    =====

    then came the CRDi:

    automatic na, responds like gasoline ang accelerator, and i dont go below 8km/liter even in bumper to bumper rush-hour traffic.

    so did it meet my expecations? definitely! tipid, convenience and power all 3-in-1 coffee

  8. Join Date
    Nov 2005
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    840
    #8
    Quote Originally Posted by boybi View Post
    It's definitely not more powerful. Look at the engines of the new Pajero (4M41) and Patrol (ZD30). The power and torque output did not improve when both engines were equipped with CRDi.
    Nagkakatalo lang naman yan sa system operating pressure. Baka naman low pressure system pa rin gamit nila. Alam ko kasi, higher operating pressure will yield more engine power. Yong bagong Pajero 3.0 DI-D is 160hp lang samantalang Sta.Fe 2.2 CRDI is 150 hp. Pag CRDI, magaling talaga siguro pag gawa ng BOSCH.

  9. Join Date
    Nov 2006
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    55
    #9
    Hey guys! Can you tell how much do you usually spend on the maintenace of your crdis?

  10. Join Date
    Aug 2005
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    5
    #10
    Would the CRDi have smoke belching problems say after 10 years?

  11. #11
    Quote Originally Posted by markstep128 View Post
    Hey guys! Can you tell how much do you usually spend on the maintenace of your crdis?
    Experience ko, mas malaki lang gastos every oil change, kasi 1.5 to 2 liter more ata compared to the non-CRDi engine. Other than that, pareho na lang siguro lahat.
    Ang tagal na nung CRDi Starex ko, 2002 pa, from the greymarket. Dun ako naging diesel lover, kasi talagang power and economy combined. You get optimum power at lower rpms kaya ang ganda talaga. Nabenta ko na nga yung 2003 CRV ko, pero yung mas lumang starex, ayaw ko talaga bitawan. Then came the D4D Fortuner, dami ko lang naririnig na problems kaya nag antay talaga ako na magkaron ng CRDi na AUV/SUV, at nung lumabas nga yung CRDi na everest, kumuha na ko, and it's definitely worth the wait.
    IMHO, kung gusto ng isuzu ma dominate ang AUV market, dapat maglabas na sila ng CRDi engine para sa crosswind, at an affordable price of less than 1M, kaya naman yan siguro. For sure, papatok ng husto yan, and it will bring really great sales to Isuzu. Ang kaso, bagal nila eh, pati na rin yung Nissan. Imagine, sobrang mahal na Patrol, old school na non-CRDi engine!

  12. Join Date
    Oct 2002
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    #12
    Quote Originally Posted by dbuzz View Post
    sabi CDRi is in latest BMW models na?... eh naunahan na sya ng Mbenz na halos panabayan ng japs at Kors cars.
    BMWs & MBs have been equipped with CRDi engines for quite sometime now, especially that their customer base in Europe has a great demand for diesel engines.

  13. Join Date
    Feb 2006
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    550
    #13
    Yes the CRDi lives up to its promises. The improved NVH to me makes a world of difference from the first-generation diesel engines. Driving our workhorses of yesteryear (Nissan Pick-up and Isuzu Highlander) got me easily tired due to the diesel clatter and vibrations. 'Liter for liter', the CRDi engine rocks!

  14. Join Date
    Aug 2004
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    22,702
    #14
    You can't base it on just one or two engine models. Look at the 4D56... it's gained a lot of power through the use of CRDi... the DiD version is pretty good, while the Hyundai CRDi version is even better.

    In my experience CRDi engines are much quieter and smoother, with a better "pull" through the rev range than previous iterations of diesel. They're definitely more powerful, pound for pound, than older generation turbodiesels of the same displacement... yes, you can tune an older diesel for the same power, but driveability will suffer, and it still won't be as revvy as the CRDi.

    As for fuel economy... that depends. Use more power, use more fuel... the Innova's D4D only gets around the same economy as the Crosswind's 4JA1... it does make 15-20 more horses and it definitely runs smoother, but that's disappointing. The Fortuner 3.0 D4D drinks like a sailor when you put the pedal to the floor, too.

    The Hyundai Starex CRDi engine drinks less than the turbodiesel before it, but it's not spectacular.

    But I guess this all depends on driving style and the specific engine-car combination we're talking about... the Accent, from dealership feedback from owners, gets 25 km/l in mixed everyday use. That's nowhere near C!'s 38.8 km/l, but it's still damn good...

    Ang pagbalik ng comeback...

  15. Join Date
    Oct 2002
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    22,658
    #15
    It's also worth mentioning that the more precise fuel delivery afforded by CRDi is also a factor in lessening emissions.

    Of course if you used crappy fuel or neglected maintenance, that's another story. But all things being equal, present CRDi engines are designed to meet a stricter set of emissions regulations than their ancestors.

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    Need an Ambulance? We sell Zic Brand Oils and Lubricants. Please PM me.

  16. Join Date
    Nov 2005
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    #16
    mabilis at tahimik pero sa durability at life-span medyo questionable pa.
    sigurado mahal ang repair and maintenance.

  17. Join Date
    Jun 2007
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    #17
    History of Common Rail (some of it)

    [SIZE=3]The common rail system prototype was developed in the late [/SIZE][SIZE=3]1960s[/SIZE][SIZE=3] by Robert Huber of [/SIZE][SIZE=3]Switzerland[/SIZE][SIZE=3]. After that, Ganser of the [/SIZE][SIZE=3]Swiss Federal Institute of Technology[/SIZE][SIZE=3] developed the common rail technology further. In the mid-nineties, Dr. Shohei Itoh and Masahiko Miyaki, of the [/SIZE][SIZE=3]Denso Corporation[/SIZE][SIZE=3], a Japanese automotive parts manufacturer, developed the Common Rail Fuel System for Heavy Duty Vehicles and finally turned into its first practical use on their ECD-U2 Common Rail system, which was mounted on the Hino Raising Ranger truck and sold for general use in [/SIZE][SIZE=3]1995[/SIZE][SIZE=3].[/SIZE]
    [SIZE=3][/SIZE]
    [SIZE=3]Both Detroit Diesel & Cummins Engine Co (America) incorporated the common-rail diesel design into their heavy duty engines during the 1970s, one of which was the Cummins L10 series, which was a standard straight-6 diesel two-valve per-cylinder engine. Obviously in normal circumstances with 12 valves this engine would normally require a single camshaft with 12 lobes operating 12 pushrods which in turn operated the valves, one inlet, one exhaust per cylinder. However these new engine has 3 pushrodsper cylinder, 1 inlet, 1 exhaust, 1 injector. Total of 18 pushrods.[/SIZE]
    [SIZE=3][/SIZE]
    [SIZE=3]Today the common rail system has brought about a revolution in diesel engine technology. [/SIZE][SIZE=3]Delphi Automotive Systems[/SIZE][SIZE=3] make common rail systems. Different car makers refer to their common rail engines by different names:[/SIZE]

  18. Join Date
    Jun 2007
    Posts
    1,343
    #18
    History of Common Rail (some of it)

    [SIZE=3]The common rail system prototype was developed in the late [/SIZE][SIZE=3]1960s[/SIZE][SIZE=3] by Robert Huber of [/SIZE][SIZE=3]Switzerland[/SIZE][SIZE=3]. After that, Ganser of the [/SIZE][SIZE=3]Swiss Federal Institute of Technology[/SIZE][SIZE=3] developed the common rail technology further. In the mid-nineties, Dr. Shohei Itoh and Masahiko Miyaki, of the [/SIZE][SIZE=3]Denso Corporation[/SIZE][SIZE=3], a Japanese automotive parts manufacturer, developed the Common Rail Fuel System for Heavy Duty Vehicles and finally turned into its first practical use on their ECD-U2 Common Rail system, which was mounted on the Hino Raising Ranger truck and sold for general use in [/SIZE][SIZE=3]1995[/SIZE][SIZE=3].[/SIZE]
    [SIZE=3]Both Detroit Diesel & Cummins Engine Co (America) incorporated the common-rail diesel design into their heavy duty engines during the 1970s, one of which was the Cummins L10 series, which was a standard straight-6 diesel two-valve per-cylinder engine. Obviously in normal circumstances with 12 valves this engine would normally require a single camshaft with 12 lobes operating 12 pushrods which in turn operated the valves, one inlet, one exhaust per cylinder. However these new engine has 3 pushrodsper cylinder, 1 inlet, 1 exhaust, 1 injector. Total of 18 pushrods.[/SIZE]
    [SIZE=3]Today the common rail system has brought about a revolution in diesel engine technology. [/SIZE][SIZE=3]Delphi Automotive Systems[/SIZE][SIZE=3] make common rail systems. Different car makers refer to their common rail engines by different names:[/SIZE]

  19. Join Date
    Oct 2002
    Posts
    526
    #19
    Quote Originally Posted by dbuzz View Post
    CRDi - Common Rail Direct Injection
    (history: 1994 Fiat Group collaborated with R. Bosch to enhance and complete injection systems for diesel engines -outcome: CRDi)

    Ito ang bragging nila noon ng sumikat yun ng 2005 compared to conventional diesel engine:

    >>> 30% more powerful

    >>> 70% more torque ..... (aha!!)

    >>> Lower fuel consumption 30-35% more mileage..... (24km/L daw CRDi)

    >>> High fuel effeciency

    >>> Improvement in drive quality (malabo 'to)

    >>> Far quieter due to its hydraulic accumulator or "rail" that reduced noise, vibration and harshness (NVH) and i qoute "more than matches that of a gasoline engine".

    bottom line: ITS FAST, QUIET AND ECONOMICAL

    well, is this so????..after sometime in the road now dito sa atin??
    Yes, the CRDI lived up to my expectations. we have a 96 Mitsu L200 and a 4x2 hilux with a 2.5litre D4D.

    The hilux is definitely faster both in acceleration and top speed. I get an average fuel consumption of 11-13km/litre which is better than the L200s 9-10km/litre. Plus, the noticeable improvements the CRDI has to offer is a smoother drive and a much quiet engine.

    But even if the CRDI made such improvements a diesel engine will always be a diesel engine. Matagal uminit mabilis lumamig and the takatakatak sound is still there though its not as audible as the old diesel engine. After driving diesel powered pick ups for the past 11 years I can still sense its diesel behavior despite the CRDI.

    Its really plain stupidity to expect it to behave 100% like a petrol powered car. Although some CRDi vehicles like the ford focus can outrun a 99 civic vti. Its still diesel.
    Last edited by usokpower; July 14th, 2007 at 12:56 PM.

  20. Join Date
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    3,376
    #20
    Quote Originally Posted by vctradingcubao View Post
    Bosch ba gamit ng Hyundai? Ano kaya gamit ng Ford? Me natandaan ako nabasa dati na Denso gamit ng Toyota.
    Hyundai, Kia, BMW, Volkswagen and Audi uses Bosch CRDi. Ford uses Bosch CRDi for the Focus, Jaguar vehicles, Mazda vehicles, Land Rover vehicles, and other Euro market vehicles; while for the Ranger and Everest, they use VM Motori's CRDi. For the SuperDuty pick-ups, they use Navistar's CRDi system under the PowerStroke name. I think maybe they are going to use Bosch's CRDi for the upcoming Expedition CRDi.

    Quote Originally Posted by louchua View Post
    ano ba gamit ng mitsu at toyota? toyota alam ko Denso right? eh mitsu same?
    Quote Originally Posted by rion View Post
    while searching in autodata. Mitsubishi is using Bosch too.

    akala ko Denso din sila kasi I see a number of Denso parts like the Intercooler. looks like I was wrong, I also notice multi brand pala ang mitsu. aside from Denso, Bosch, they also use Solex/Dellorto, Aisan, Zexel...

    medyo ot na tayo... :lol:
    Toyota uses Denso CRDi in the IMV vehicles, Euro market Prado and the Hiace, because those CRDi's still have solenoid injectors. I think they are using Bosch in their other Euro market vehicles because the D4-D 280 uses piezo injectors, thus making the 2.2 L engine having a peak power of 170 ps and a peak torque of 400 Nm. So even Denso is a Toyota subsidiary, Toyota still partners with Bosch to make their CRDi system.

    Mitsubishi, uses Denso CRDi for the 4D56 and 4M41 engines. For the other DI-D engines borrowed from Volkswagen, they use Bosch CRDi.

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CRDi does it really live-up to its expectation?..mula inilabas yun??