according to a hellenic magazine called 4 wheels, the multiair system will be available for fit and go to all existing engines. it will be a direct fitment to all fire and turbo fire engines. i think this is a very nice move from fiat.
General Good news for tjet and abarth owners!!
- Thread starter GDRIVER
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General Good news for tjet and abarth owners!!
but isnt the multiair the 2 cyinder engine?
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the multiair is just advanced camshafts.it replaces the camshaft.nothing more.
Multiair is an enhancement that is usable on all engines. The first use of it will be on the current 1.4 engine that's in your car. (Apparently in the Mito, though it can't be long before it is also in the GP & Bravo.) It will also be used though on the 900cc 2 cylinder 'SGE'.
As I understand it, it doesn't so much replace the camshaft, as alter its behaviour...
Where a regular camshaft opens and closed values in a fixed pattern, the multiair has a hydraulic value between the cam and the value head to alter the "shape" of the value opening.
my question is this. if the current t-jet engines are euro4 compatible, will they be euro5 after the isntalation? i ask this because all multiair engines are eur5 compliant.
what about the 1.4 16v n/a? Will it fit that?
doesnt that make it basically vvti or similair?
thought multiair did away with cams? sure i read that on one of the links on that other thread. (although it did confuse me).
the 1.4 16v n/a is a different block to the T-jet engine iirc, so it might not be available for that.
I bet its a silly price for it aswell
sure i read that on one of the links on that other thread. (although it did confuse me).the 1.4 16v n/a is a different block to the T-jet engine iirc, so it might not be available for that.
I bet its a silly price for it aswell
well they say it will be for every engine because the atmo 1.4 still has euro4. so in order to compete it will fit this version too. this is only an assumption. i believe it will be an awfly expensive part to buy and fit.thought multiair did away with cams?
the 1.4 16v n/a is a different block to the T-jet engine iirc, so it might not be available for that.
I bet its a silly price for it aswell
If it can be retrofitted, im sure someone will. But! surely its gonna be a hell of a parts list. New ECU for starters to control the Electro-Hydraulic valves, possibly new cam drive system, the valves themselves etc.
Maybe they'll let you buy a whole head and ECU on a swap basis?
Maybe they'll let you buy a whole head and ECU on a swap basis?
Looking at this, it looks like one cam of the pair is gone (i guess the 16v 1.4 is a twincam?)
http://www.gizmag.com/fiat-releases...combustion-engine-design/11184/picture/71344/
http://www.gizmag.com/fiat-releases...combustion-engine-design/11184/picture/71344/
Here's a good explanation of how Multiair works.
I'm sure Fiat will be using it with all their engines soon enough, if for no other reason than to help pass the EURO 5 specs.
Because the hydraulic chambers are controlled by the ECU (apparently?) it looks like they can do lots of clever things that most other "intelligent" VVT systems can't do. (I'm no expert though.)http://www.honestjohn.co.uk/news/item.htm?id=5843 said:
I'm sure Fiat will be using it with all their engines soon enough, if for no other reason than to help pass the EURO 5 specs.
Jesus christ what is that flying over my head!
D4nny8oy
Established member
Fiat spent a lot of years (and money) developing this and it's so much more than just 'fancy camshafts'.
For a start it completely removes the need for a throttle butterfly by controlling precisely when and by how much the inlet valves open.
http://www.italiaspeed.com/- News article 04.03.2009 for more info.
I doubt the various components (ECU, modified head, etc) would be available as a 'kit' for retrofitting by Dealers/customers, but more likely what Fiat are saying is that the technology can be made to fit existing engines without incurring massive costs in research and development.
I'd guess even though the throttle is not strictly necessary, there will still be one, for fail-safe reasons if nothing else. Compare BMW's [ame="http://en.wikipedia.org/wiki/Valvetronic"]valvetronic[/ame] system.
(Sounds though that Fiat's system is better than BMW's.)
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just thought that you should know. the official site of fiat here in hellas is stating that the multiair system can be applied to all 16v fire engines. it cannot be more official than that. good day to all!!!:slayer:
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that leaves starjet owners out then
