A small difference between DDiS and 1.3 MJD.

shineshine · 7th March 2008, 19:06

I just observed an interesting thing...

The fiat 1.3 JTD (MJD) multi-jet direct injection system is supplied with fuel via a common-rail system at a pressure of 1600 bar, whereas in SWIFT DDiS it is 1400 bar (Taken from Swift Brochure).

How it happened? Any clues?

gr8guzzler · 7th March 2008, 21:09

Where did you get the specs for Fiat 1.3 MJD from? Can you post it here?

1100D · 7th March 2008, 21:45

Quote:

Originally Posted by shineshine

I just observed an interesting thing...

The fiat 1.3 JTD (MJD) multi-jet direct injection system is supplied with fuel via a common-rail system at a pressure of 1600 bar, whereas in SWIFT DDiS it is 1400 bar (Taken from Swift Brochure).

How it happened? Any clues?

Dont Worry, wait for the 1.3 MJD application of the Palio to hit the roads, you could see a reduction in the boost pressure of that as well. For indian condition cars are detuned.

simplythebest · 10th March 2008, 23:05

Can a remap of the engine increase the pressure?

Or will the pump itself be different.

mithun · 12th March 2008, 13:34

What difference does this pressure difference make on the road ?

moralfibre · 14th March 2008, 00:54

Something more about the engine that I learned yesterday. The rocker arms of the car made brittle. The rocker arms would break away thereby saving your valves from bending. I don't have much technical detail but was taught this by guys who underwent training at Fiat Ranjangaon before the Palio 1.3 MJD was launched.

hellspawn · 14th March 2008, 01:48

Quote:

Originally Posted by moralfibre

Something more about the engine that I learned yesterday. The rocker arms of the car made brittle. The rocker arms would break away thereby saving your valves from bending. I don't have much technical detail but was taught this by guys who underwent training at Fiat Ranjangaon before the Palio 1.3 MJD was launched.

Why would they break i.e.under what circumstances have they provided this so-called safety feature.

1100D · 14th March 2008, 03:18

To prevent hydrostatic lock, in event of the engine sucking in water while negotiating a waterlogged area. Its better to break the rocker arm than break everything else.

simplythebest · 14th March 2008, 08:32

Interesting... is this a feature only on the indian version?

rider60 · 14th March 2008, 10:00

one OT question, can the same pete's box be used for both these cars? i mean they have the same engines right? any leads on this? after all we are talking about engine comparisons right?

Ajaybiz · 14th March 2008, 10:09

More compressed fuel means efficient burning which converts to more fuel effiency.

7th March 2008, 19:06	#1
shineshine BHPian Join Date: Jun 2006 Location: Arkansas,US Posts: 280 Thanked: 44 Times	A small difference between DDiS and 1.3 MJD. I just observed an interesting thing... The fiat 1.3 JTD (MJD) multi-jet direct injection system is supplied with fuel via a common-rail system at a pressure of 1600 bar, whereas in SWIFT DDiS it is 1400 bar (Taken from Swift Brochure). How it happened? Any clues? Attached Thumbnails
	() Thanks

7th March 2008, 21:09	#2
gr8guzzler BHPian Join Date: Apr 2005 Location: Navi Mumbai Posts: 653 Thanked: 87 Times View My Garage	Where did you get the specs for Fiat 1.3 MJD from? Can you post it here?
	() Thanks

10th March 2008, 23:05	#4
simplythebest BHPian Join Date: Feb 2008 Location: Coimbatore Posts: 121 Thanked: 10 Times	Can a remap of the engine increase the pressure? Or will the pump itself be different.
	() Thanks

12th March 2008, 13:34	#5
mithun BANNED Join Date: Jan 2006 Location: Cochin Posts: 2,195 Thanked: 268 Times	What difference does this pressure difference make on the road ?
	() Thanks

14th March 2008, 00:54	#6
moralfibre Team-BHP Support Join Date: Dec 2004 Location: MH-12 Posts: 8,451 Thanked: 13,973 Times	Something more about the engine that I learned yesterday. The rocker arms of the car made brittle. The rocker arms would break away thereby saving your valves from bending. I don't have much technical detail but was taught this by guys who underwent training at Fiat Ranjangaon before the Palio 1.3 MJD was launched.
	() Thanks

14th March 2008, 03:18	#8
1100D Senior - BHPian Join Date: Jun 2006 Location: Calcutta Posts: 4,390 Thanked: 4,096 Times View My Garage	To prevent hydrostatic lock, in event of the engine sucking in water while negotiating a waterlogged area. Its better to break the rocker arm than break everything else.
	() Thanks

14th March 2008, 08:32	#9
simplythebest BHPian Join Date: Feb 2008 Location: Coimbatore Posts: 121 Thanked: 10 Times	Interesting... is this a feature only on the indian version?
	() Thanks

14th March 2008, 10:00	#10
rider60 Senior - BHPian Join Date: Mar 2007 Location: Bhagyanagaram. (A.K.A. Hyderabad) Posts: 1,620 Thanked: 56 Times View My Garage	one OT question, can the same pete's box be used for both these cars? i mean they have the same engines right? any leads on this? after all we are talking about engine comparisons right?
	() Thanks

14th March 2008, 10:09	#11
Ajaybiz BANNED Join Date: Nov 2004 Location: Bangalore Posts: 1,440 Thanked: 320 Times View My Garage	More compressed fuel means efficient burning which converts to more fuel effiency.
	() Thanks