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| | #211 (permalink) | |
| BHPian Join Date: Jun 2007 Location: Chennai
Posts: 153
| Quote:
So unless the pricing of the petrol version is absolutely spot on, I don't see the petrol version making an impact in India | |
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| | #212 (permalink) | |
| BHPian Join Date: Oct 2005 Location: Delhi/Faridabad
Posts: 770
| Quote:
Check this: Tata Motors - Media Centre 1.4 might probably be offered in the new Indigo. | |
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| | #214 (permalink) | |
| BHPian Join Date: Jun 2007 Location: Chennai
Posts: 153
| Quote:
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| | #215 (permalink) | |
| BHPian Join Date: Oct 2005 Location: Delhi/Faridabad
Posts: 770
| Quote:
Dicor 2.2 is called VTT: Variable Turbine Technology. But yes, you could be right. This needs some checking up. Last edited by directinjection : 8th April 2008 at 12:21. | |
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| | #216 (permalink) | |
| BHPian Join Date: Jun 2007 Location: Chennai
Posts: 153
| Quote:
![]() but from what I googled/wikied, they do not have an engine near to 1.2 L in their line up which is induction boosted. From wiki I saw that the Linea is offered with 3 engine options only - all of them we know about no surprises Fiat Linea - Wikipedia, the free encyclopedia So I guess we just have to wait and watch | |
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| | #217 (permalink) |
| Newbie Join Date: Mar 2008 Location: delhi
Posts: 31
| Hi, just did some finding as i myself wanted to know VVT & VTT. Thought was worth sharing. May help ![]() Courtesy Paul Tan's Automotive Industry News cheers Variable Turbine Geometry technology is the next generation in turbocharger technology where the turbo uses variable vanes to control flow against the turbine blades. See, the problem with the turbocharger that we’ve all come to know and love is that big turbos do not work well at slow engine speeds, while small turbos are fast to spool but run out of steam pretty quick. So how do VTG turbos solve this problem? A Variable Turbine Geometry turbocharger is also known as a variable geometry turbocharger (VGT), or a Variable Nozzle Turbine (VNT). A turbocharger equipped with Variable Turbine Geometry has little movable vanes which can direct exhaust flow onto the turbine blades. The vane angles are adjusted via an actuator. The angle of the vanes vary throughout the engine RPM range to optimize turbine behaviour. ![]() In the 3D illustration above, you can see the vanes in a angle which is almost closed. I have highlighted the variable vanes so you know which is which. This position is optimized for low engine RPM speeds, pre-boost. ![]() In this cut-through diagram, you can see the direction of exhaust flow when the variable vanes are in an almost closed angle. The narrow passage of which the exhaust gas has to flow through accelerates the exhaust gas towards the turbine blades, making them spin faster. The angle of the vanes also directs the to hit the blades at the proper angle. ![]() Above are how the VGT vanes look like when they are open. I’ve not highlighted where the vanes are in this image since you already know where they are, as to not spoil the mechanical beauty that it is ![]() This cut-through diagram shows the exhaust gas flow when the variable turbine vanes are fully open. The high exhaust flow at high engine speeds are fully directed onto the turbine blades by the variable vanes. Variable Turbine Geometry has been used extensively in turbodiesel engines since the 1990s, but it has never been on a production petrol turbocharged car before until the new Type 997 Porsche 911 Turbo. This is because exhaust gases are alot hotter than diesel engine exhaust gas, so generally the material used to make VTG turbos could not stand this heat. The 997 911 Turbo uses a BorgWarner VTG turbocharger which uses special materials derived from aerospace technology, hence solving the temperature problem. I hope I have helped you understand how VTG works. |
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| | #218 (permalink) |
| Newbie Join Date: Dec 2007 Location: indore
Posts: 22
| I think it will be vaiable valve timing for the engines. as it would be more logical to offer a better engine first. to add a turbo to it would be the second option and they may consider it for higher end models |
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| | #221 (permalink) | |
| Newbie Join Date: Dec 2007 Location: indore
Posts: 22
| Quote:
I think the programme was a retelecast of the last years programme where they had reviewed linea during launch in turkey. today's economic tmes has some news about the fiat launches Fiat to revamp its image; gears up for new launches- Automobiles-Auto-News By Industry-News-The Economic Times | |
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| | #223 (permalink) |
| Senior - BHPian Join Date: Feb 2008 Location: Coimbatore
Posts: 1,098
| Could you disclose your source of info about sept launch ? Cos we have been hearing rumours about July- August '08 launch.
__________________ Remember that nobody will ever get ahead of you as long as he is kicking you in the seat of the pants. |
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