Tuning Fiat Tipo 1.9 turbo diesel configuration

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Tuning Fiat Tipo 1.9 turbo diesel configuration

nivaman

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Hi
Would like to know if the 1.9 turbo diesel Tipo about 1990 era is direct injection or indirect.
 

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Do some diesel engines have precombustion chambers?, i think this engine is one of those?.
The later Fiat diesel engine as i understand it is direct injection?.
 
All Diesel engines are direct injection (fuel injected into the cylinder). I think you maybe asking if the engine is a common rail diesel (EFI) which is it not. Later one are.

This diesel has a plain old mechanical injection pump.
 
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Right you are SteveNZ, i was confused :confused:.
Flatmate was trying to tell me the engine was direct injection, i knew it was not common rail injection.
Just curious if an ordinary diesel can be converted to common rail injection?.
 
There is no reason why not, its only an injection system.

I believe that old Tipo 1.9TD 8V motor lived long enough to receive a common rail injection system so you maybe able to rob some bits off a later model if you really wanted to.
 
Just curious if it could be done Hellcat.

Thanks SteveNZ.
I am new to diesel with having a 2 ltr Fiat TC in my Niva and am going to change to the Fiat 1.9 TD engine and i guess seeking information on the engine.
 
How suited to supercharging is this engine?, i may have to take the turbo off due to where it sits, basically interference between the steering box and turbo so thought i would go supercharged instead.
What would the pros and cons of doing so be?, i had thought of getting a turbo manifold made that relocates the turbo but then the turbo would interfere with engine mounts and alternator.
I could fit something like a Toyota sc14 supercharger just above the inlet manifold giving a straight shot into the inlet manifold.
Would have to make up brackets and belts but apart from this what else would i have to do?.
The engine has a Bosch pump but am unsure as to what type and if the pump would be able to handle a supercharger.
Any help gratefully received.
 
It would be fine for supercharging. But supercharging is more difficult to get right.

Supercharger size and gear ratio is critical. I have no idea if an SC14 would be any good. Keep in mind a diesel consumes a lot more air than a petrol to achieve the same power.
 
Thanks guys,
Food for thought indeed.
I understand the supercharger takes power from the crank, how much?,.
How much boost is standard in these engines?, i will be investigating what size pulleys and such to use.
I think the pump has a boost compensator because it is a turbo, i think i will be able to use this to fuel the engine when the supercharger is boosting, will it over fuel?.
 
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The Tipo maunal states that the engine is indirect injection. This term relates to the use of a pre-combusion chambers, which this engine has.

I had understood that you could only use common rail etc with direct injection i.e. no precombustion changer hence modern engines are all direct.
 
OK so I've lernt something new. I'm no diesel mechanic.

It depends on what your definition of direct and indirect is. It appears diesels have a specific definition for "indirect" injection that I did not know of. i.e. injection into a pre combustion chamber.

In my mind (petrol mechanic) that's still "direct" injection :)
 
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I learnt something as well, here was me thinking it would be easy to fit common rail injection.
Indirect injection (as i have read) means the engine is better able to use biodiesel too.
 
I think the back story is that indirect injection was adopted as it resulted in a much quieter engine thro the 2 stage combustion of the fuel. Now makers have moved back to direct injection albeit with lots of extra soundproofing. This suggests there must be a reason, and I think this is to do with the need for more precise and complete burning of the fuel (emissions and economy pressures) - acheivable thro common rail etc - but that this precision is much easier to acheive using direct injection. Hopefully someone willl say if I'm making this up.
 
Thanks jonti
I think your correct with the indirect injection, also good for biodiesel.
Any idea what stock boost this engine has?, what turbo should this engine have and what is the psi of the turbo?.
 
What fuel other than diesel can this engine cope with?. I have heard of other diesel engine owners using ATF, Kerosene, av gas, JetA1 etc. Here in New Zealand we have straight diesel and i am looking at other alternatives should the need arise and to experiment with. My Tipo TD engine has a Bosch pump so am i correct in thinking that this pump is the better pump for this?.
 
[nomedia="http://www.youtube.com/watch?v=QEX1YFXYTdI&feature=related"]YouTube- Mythbusters - Cooking Oil as Economical Diesel Fuel[/nomedia] (y)
 
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