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    Thread: Driving a Diesel- Things to remember

    1. #11
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      Hill Descent in a Road going Turbo Diesel

      SUV turbo diesels seem to have far better engine braking than street racer diesels
      We've all been taught that we need to come down a gradient using the same gear we'd used going up.

      I'm not sure that works very well for a Turbo Diesel.
      I've found that you need to go a gear lower than you used going up. Anyone else feel the same?
      I keep tapping the brakes to keep the engine from over revving.
      Sometimes even that doesnt work on the inclines we get in the ghats near here. then its hard on the brakes to bring the revs down further and downshift another gear

      If you are having to get hard on the brakes while descending in gear, you are in too high a gear to be safe and in control.
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    2. #12
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      That's nice set of info.BTW ,unfortunately ,My Vista QJD Terra does not have the tachometer.So ,By Meaning keep the rpm above 1800-2000 ,How much kmph speed approximately it will be ?

      Do I need to idle in short distance stop&start condition.For Multijet/ddis/Quadrajet How much time for Idle?Currently trying out approx 1 minute.Is there anything wrong if driven with light throttle?(Before turbo spools up).

      Thanks!

      OT:Any shops where I can search for bare basic Tachometers(cochin/nearby).
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    3. #13

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      Bikerman,

      makesure the tach will work on a diesel.. No ignition you see

      @ Louis, Doc this is a brilliant tread..

      Just to add .

      DONOT consistently drive under boost . Lot of people try to shift up at earliest possible speed, and there is enough torque even without the turbo boost for the car not to stall.. Bad idea.. you may see a marginal increase in FE, but big repair bills will come.
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    4. #14

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      Ya doc it happens to me too.If i come down the ghats in the same gear as i go up,the car tends to fly.Usually i go up the ghats in third or fourth.But coming down i ve to stick to second gear and occasionally use the brakes too..In the ghats always stick to engine braking. I ve had two very bad experiences relying just on the brakes in the ghats..

      bikerman, Speed in this rpm band(1800-2000rpm) depends on the gear you are in.Wat ripper meant was not to floor the throttle when you feel that the car is not pulling in a higher gear.Downshift and slowly apply the accelerator till you can feel the car really pulling .Once the car really starts to pull you know the turbo is in action.You can floor it then.
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      Diesels also have a nice advantage at the traffic lights ;-)
      For those annoying honkers behind
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    6. #16

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      Wat's that???? :?
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    7. #17
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      Nice thread Doc!

      Quote Originally Posted by [url=http://gearheads.in/post14181.html#p14181
      rippergeo Fri Jan 08, 2010 4:15 pm[/url]]
      4.Please dont ride the clutch- quick on and off
      I think you mean, don't dump the clutch while shifting. Yup, very true. With turbo diesels shift by releasing the clutch smoothly, more like slipping the clutch. Never dump the clutch in a TC'd diesel engine. It puts a lot of strain on the steering, suspension and engine mounts.

      Quote Originally Posted by rippergeo
      I've found that you need to go a gear lower than you used going up. Anyone else feel the same?
      Actually, I prefer using 2nd gear at most times. Except when you have those steep inclines where using 1st is a must.

      Quote Originally Posted by hrag
      Diesels also have a nice advantage at the traffic lights ;-)
      For those annoying honkers behind
      Yup yup! Honk karne wale, tera mooh kala .

      Another thing I would do in diesels is, downshift & brake a bit early while taking a corner (basically lose more speeds) whilst compared to a petrol. This will let you use the boost through the corner, if not you will be near the end of the rev band close to the exit. And that ain't no fun.

      Yes, engine braking isn't as efficient in TC'd diesels as in petrols. But it still works to a big extent.
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    8. #18
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      Quote Originally Posted by [url=http://gearheads.in/post14209.html#p14209
      1001bhp Fri Jan 08, 2010 8:56 pm[/url]]Wat's that???? :?
      rev it to glory! blow out all the soot thats been lining the exhaust system, onto the face of that pesky biker.
      I remeber, when my car was being tuned intially with some very richly fuelled remaps, Flooring the accelerator would see me rocket off, and all the bikers behind me stop because of the smoke either blinding them or choking them.

      I miss that remap!
      It was like my very own personal smokescreen.

      @rahul- yes, Not clutch dumping, just as fast and smooth as possible.
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    9. #19

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      Ha ha ha..i liked that..but i haven noticed much smoke when i floor it.but may be its because i haven noticed it.
      One look at your exhaust tip that day and i knew you loved creating smoke screens.
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    10. #20
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      What speeds to maintain when we dont have a tachometer

      HI Ripper,

      What a article ! Hats off to you and thank you for sharing your experience with us.
      Since swift Ldi doesn't have a tachometer, could you please let us (me and bikerman) the speeds we need to maintain in each gear.
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