Comments on: Chrysler introduces Fiat four-cylinder to range

By: Baddass

Baddass — Mon, 21 Dec 2009 06:53:22 +0000

Then again, the Hornet concept was released a few years ago now, and Chrysler has changed a lot since then. I wouldn’t be surprised if it never came to fruition, at least in the form that it was shown as.

By: MrQuick

MrQuick — Mon, 21 Dec 2009 06:20:51 +0000

There is no physical connection to the cam like all the other systems have, the individual valves are connected to solenoids.

When connected to a cam, you can only open and close the valve during a stroke, where as this allows you to open and close a single valve multiple times during a stroke, which means at different rev ranges and dependent on how aggressively you are driving, it can change fuel-to-air ratios for maximum efficiency. This system is not limited to a cam, where as all the other variable valve tech ultimately has a range of movement that a cam can allow.

This is a massive step towards camless engines, which will mean an infinitely variable timing and therefore massive improvements in efficiency.

By: Paul

Paul — Mon, 21 Dec 2009 00:13:13 +0000

I don’t Know but i am betting the Chrysler product based in the 500 will be the Hornet.

By: Baddass

Baddass — Mon, 21 Dec 2009 00:07:10 +0000

Thanks for that. Is Dodge still going to produce the Hornet?

By: Elitist

Elitist — Mon, 21 Dec 2009 00:02:30 +0000

Pretty much all these inlet technologies like MIVEC, VVT-i etc all owe Fiat where they are.
Fiat was the first with its common rail and multiair technologies in late 80′s but made the mistake of selling that gen technology to Bosch who implemented it in many cars, this is why Fiat never got mentioned nor enjoyed the profits.

I have read they are getting 2ltr turbo power from 1.4 ltr turbo engines (abarth 500). Also their recycling of exhaust gas for more power/efficiency is a new addition.

http://www.youtube.com/watch?v=5IrPcmMHqHE&feature=fvst

Fiat has now learned not to share with the germans which would trickle down to the Japanese this time round…

By: Paul

Paul — Mon, 21 Dec 2009 00:01:51 +0000

It will come out first on the Fiat 500 and Chrysler product based on the 500. AS MultiAir is basicly a bolt on System and it is going into Chryslers 4 cylinders world engine range That you find on the Caliber,Avenger,Sebring,Patriot etc. Also Chryslers new Pentastar engine which they have been developing for a while and will debut next year.Products with the Pentastar will be the all new Grand Cherokee(don’t know about muiltiair on this) new Dodge Charger,Challenger Chrysler 300 and maybe updated Sebring/Avenger. Expect The Muiltiair pentastar 3.3lt to be to have around 209 kw and the 3.6 lt to have over 220 kw. This engine is said to be very smooth,quiet and very fuel efficient. The there is the Single and twin Turbo Pentastar motors as well. Chryler please make the new Charger rhd and bring it to Australia

By: Baddass

Baddass — Sun, 20 Dec 2009 23:30:31 +0000

So what Chrysler cars will it be introduced into?

By: Simon

Simon — Sun, 20 Dec 2009 22:13:02 +0000

So it’s MIVEC, VVT-I,VVL, Variocam, VANOS or whatever other propriety name you want to put on it.
Toyota’s system is also hydraulic. If Fiat’s system is better, can you articulate why?