Understanding Toyota Innova D4D Technicals Better - Team-BHP

btirthankar · 7th May 2009, 12:40

Innova is a No-Problem Vehicle but then this thread is intended to query, share and explore Toyota Innova D4D Technicals.

Let me start off with a barrage of questions on the Toyota Innova D4D:

Does Innova G1 Single Blower and G4/V Double blower has different capacity AC Compressors? (The Condensor Unit is twin I Know, but I believe the AC Compressor is same capacityin both variants)
Is the ECM programmed to behave as per the ODO mileage? (I mean during run-in it will behave in some way and once it crosses 50K or 1 Lakh kms it will behave another way)
Is the D4D Engine really so detuned as to give it a long life? What all is done for the de-tuning? How does pete help then?
Why does the vehicle cruise @ 80 kmph on overdrive @ 2000 rpm. other vehicles like safari do 100+ kmph at that speed. Is it for the optimum torque or is it for limiting top speed?
How well does a D4D Crdi perform in high altitude?
Why does the D4D does not have a separate intercooler?
What rpm range is the Turbo Pull precisely? (I have experienced between 2000-2400 rpm)
Does the Turbo Pull absence happens in D4D (Like it has been seen in the swift)
Why is the D4D engine NVH so harsh whereas engines of ford fiesta, Swift sound so tame? What did they do to make it silent? And does sounding rough and crude ensures long engine life?
Does the K&N Filter make a great difference in D4D? (Mine did not, so rolled back)
What is the ARAI standard mileage certification for D4D? Is 80 kmph or 100 kmph the max efficiency speed?
What all protection is inbuilt in the Innova for driving in waterlogged areas (and also parked in water logged areas upto the door sill level)?
Why is the paint quality so bad in the Innova? How much should it cost to repaint it entirely?
Also share other ownership issues (Technical snags, if any) and add to the list.
Does the fuel efficiency reduce drastically id one uses 225/60/R15 tyres instead of 205/65/R15? Is that the reason the company recommends thinner tyres?

Better some guy from TKMPL answers these.

SS-Traveller · 7th May 2009, 13:00

Quote:

Originally Posted by btirthankar

What all protection is inbuilt in the Innova for driving in waterlogged areas (and also parked in water logged areas upto the door sill level)?

BT, you seem to have started preparations for the Kolkata monsoons already, I see. No car (except this)

likes water, whether Toyotas or Marutis.

Quote:

Why is the paint quality so bad in the Innova? How much should it cost to repaint it entirely?

Repaint your Innova entirely?

Are you serious? No way...

btirthankar · 7th May 2009, 13:12

Quote:

Originally Posted by SS-Traveller

BT, you seem to have started preparations for the Kolkata monsoons already, I see. No car (except this)

likes water, whether Toyotas or Marutis.

Repaint your Innova entirely?

Are you serious? No way...

Yeah True. The Dealership says, its water protected and was explaining how better it is protected in comparison to the corollas. Cant buy his words still.

genesis · 7th May 2009, 15:19

@bt: How well does a D4D Crdi perform in high altitude?

From my personal experience, very well. I have done the Shimla, Kinnaur, Spiti, Rohtang loop in my innova V in 2007 with exactly zero issues. Met another family driving an innova on the journey and they continued onto ladakh and came out via kashmir.

The only thing I would say is that the second gear is quite weak on very steep slopes.

On the entire trip, there was only one road I could not make it up, ironically a well tarred but very steep back road to a hotel in Kalpa. Had to stop the car and then it just kept rolling back even in first. Had to put stones to stop the slide and then slowly reversed down. (To be fair, the hotel management had recommended that road for jeeps only but I had to try

)

7th May 2009, 12:40	#1 (permalink)
btirthankar BHPian Join Date: Sep 2007 Location: Some National Highway Posts: 553 View My Garage	Understanding Toyota Innova D4D Technicals Better Innova is a No-Problem Vehicle but then this thread is intended to query, share and explore Toyota Innova D4D Technicals. Let me start off with a barrage of questions on the Toyota Innova D4D: Does Innova G1 Single Blower and G4/V Double blower has different capacity AC Compressors? (The Condensor Unit is twin I Know, but I believe the AC Compressor is same capacityin both variants) Is the ECM programmed to behave as per the ODO mileage? (I mean during run-in it will behave in some way and once it crosses 50K or 1 Lakh kms it will behave another way) Is the D4D Engine really so detuned as to give it a long life? What all is done for the de-tuning? How does pete help then? Why does the vehicle cruise @ 80 kmph on overdrive @ 2000 rpm. other vehicles like safari do 100+ kmph at that speed. Is it for the optimum torque or is it for limiting top speed? How well does a D4D Crdi perform in high altitude? Why does the D4D does not have a separate intercooler? What rpm range is the Turbo Pull precisely? (I have experienced between 2000-2400 rpm) Does the Turbo Pull absence happens in D4D (Like it has been seen in the swift) Why is the D4D engine NVH so harsh whereas engines of ford fiesta, Swift sound so tame? What did they do to make it silent? And does sounding rough and crude ensures long engine life? Does the K&N Filter make a great difference in D4D? (Mine did not, so rolled back) What is the ARAI standard mileage certification for D4D? Is 80 kmph or 100 kmph the max efficiency speed? What all protection is inbuilt in the Innova for driving in waterlogged areas (and also parked in water logged areas upto the door sill level)? Why is the paint quality so bad in the Innova? How much should it cost to repaint it entirely? Also share other ownership issues (Technical snags, if any) and add to the list. Does the fuel efficiency reduce drastically id one uses 225/60/R15 tyres instead of 205/65/R15? Is that the reason the company recommends thinner tyres? Better some guy from TKMPL answers these. __________________ -- DRIVOBLOG® \| Tirthankar Basu Last edited by btirthankar : 7th May 2009 at 12:44.

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7th May 2009, 15:19	#4 (permalink)
genesis BHPian Join Date: Sep 2008 Location: Mumbai Posts: 208	@bt: How well does a D4D Crdi perform in high altitude? From my personal experience, very well. I have done the Shimla, Kinnaur, Spiti, Rohtang loop in my innova V in 2007 with exactly zero issues. Met another family driving an innova on the journey and they continued onto ladakh and came out via kashmir. The only thing I would say is that the second gear is quite weak on very steep slopes. On the entire trip, there was only one road I could not make it up, ironically a well tarred but very steep back road to a hotel in Kalpa. Had to stop the car and then it just kept rolling back even in first. Had to put stones to stop the slide and then slowly reversed down. (To be fair, the hotel management had recommended that road for jeeps only but I had to try )