However it's done, one would theorize that existing engine plants would build this, so some things would be common with other power plants. Bore spacings etc.

 

I've also heard the rumor of a VW-like "VR6" arrangement with staggered cylinders.

 

Now that would be a compact 6 cylinder that should fit in the place of all 4 cylinder applications. Thanks.

 

How out of line can an Inline engine be before it's a V configuration?

 

GasAxeHow out of line can an Inline engine be before it's a V configuration?It is firing order and crank structure. A better name for a "narrow angle V6" would be an "Offset bore Inline six". If that helps.

 

Thom ParéI've also heard the rumor of a VW-like "VR6" arrangement with staggered cylinders.Unfortunately this engine will be a straight 6.

 

redriderbobUnfortunately this engine will be a straight 6.Why is that unfortunate? Straight six is smooth operator

 

TripleTWhy is that unfortunate? Straight six is smooth operatorCan be a smooth operator. The I6 has perfect primary/secondary balance, but that doesn't necessarily translate into low NVH. The Jeep 4.0 (along with the Ford I6, Toyota I6 and several others) are not particularly smooth or pleasant engines.

I6s have packaging issues, torsional rigidity concerns and so much more. Stuffing an I6 where an I4 belongs is just going to lead engine compromises and serviceability issues. Look at the 4.0 XJ Cherokee as a great example of this (the marginal at best cooling system). But it doesn't matter anyways, because this engine is probably at least 10 years out based on FCA U.S.'s current rate of engine development.

 

Everything old is new again.

 

AutoTechnicianCan be a smooth operator. The I6 has perfect primary/secondary balance, but that doesn't necessarily translate into low NVH. The Jeep 4.0 (along with the Ford I6, Toyota I6 and several others) are not particularly smooth or pleasant engines.

I6s have packaging issues, torsional rigidity concerns and so much more. Stuffing an I6 where an I4 belongs is just going to lead engine compromises and serviceability issues. Look at the 4.0 XJ Cherokee as a great example of this (the marginal at best cooling system). But it doesn't matter anyways, because this engine is probably at least 10 years out based on FCA U.S.'s current rate of engine development.I would expect to be a modern and smooth and compact.... 4.0 was long ago.

 

TripleTWhy is that unfortunate? Straight six is smooth operatorThat was my reaction as well.

I'm happy to hear it will be a more conventional straight six, vs one of the more exotic configurations.

Yes, the engine will be longer, but there are other advantages, like having all the exhaust ports on the same side for ease of turbocharging, and no crossover pipe, and a bunch of other advantages I'm sure.

 

They don't need to install it in FWD transversal configurations. The largest vehicle FWD transversal configuration is Pacifica and it will be served just as well (better?) by a 2.0 l4 turbo. For any other vehicle that requires more power, they have RWD platforms available.

 

v.b.They don't need to install it in FWD transversal configurations. The largest vehicle FWD transversal configuration is Pacifica and it will be served just as well (better?) by a 2.0 l4 turbo. For any other vehicle that requires more power, they have RWD platforms available.If FCA thinks FWD does not need the inline 6, they are, once again, not understanding the North American market.

 

.

Lancia hint, eh?

So, maybe, possibly, a Straight-Six implementing a rather narrow-V . If that's the case, that seems to be a prudent application; specifically since if they'd want it to be capable of use in Transverse or North-South architectures.

( Spooky, though ... they must've been recording my sleep-talking ).

{ I attempted 4x this morning trying to put this simple message up, but it only churned at that time each time I tried }

 

I measured the engine in a 2.4 500X. I think the six would fit into transverse settings if they moved stuff around a bit.

 

v.b.They don't need to install it in FWD transversal configurations. The largest vehicle FWD transversal configuration is Pacifica and it will be served just as well (better?) by a 2.0 l4 turbo. For any other vehicle that requires more power, they have RWD platforms available.Power overlap in a six plays into smoothness and a somewhat more subtle power curve, especially compared to an I4.

 

Dave ZI measured the engine in a 2.4 500X. I think the six would fit into transverse settings if they moved stuff around a bit.Dave ... Are you, in a back-handed way, admitting out in the open that you're a Closet Packaging Engineer?

 

I know it's more complicated than “gee, there’s an empty space here” and that it’s very hard to do. But I also know the engineers are very very clever. I doubt the six would ever be used in something like the Compass, but it might work in something wide like the Pacifica. I do think the main goal is not mainstream cars but large cars and high end Jeeps and Rams and such.

 

AutoTechnicianCan be a smooth operator. The I6 has perfect primary/secondary balance, but that doesn't necessarily translate into low NVH. The Jeep 4.0 (along with the Ford I6, Toyota I6 and several others) are not particularly smooth or pleasant engines.

I6s have packaging issues, torsional rigidity concerns and so much more. Stuffing an I6 where an I4 belongs is just going to lead engine compromises and serviceability issues. Look at the 4.0 XJ Cherokee as a great example of this (the marginal at best cooling system). But it doesn't matter anyways, because this engine is probably at least 10 years out based on FCA U.S.'s current rate of engine development.Thank heaven, in 10 years I probably won't know who I am so FCA won't matter. Then again I could always get unlucky.

 

Pulling off a super modern inline six would technically and profitabilitywise be a major product building acheivement. If V8's must go away then a charged inline six would be the next best thing. If the market stays like it is then having the most advanced six out there would also be quite a coup in Alfas, Dodge, Jeeps, even Rams and Maserati. How about a Chrysler 300 with a 400 hp inline six? A 600 horsepower Challenger SRT inline 3.6? How about diesel inline sixes for Ram and Wrangler.

 

Dave ZI know it's more complicated than “gee, there’s an empty space here” and that it’s very hard to do. But I also know the engineers are very very clever. I doubt the six would ever be used in something like the Compass, but it might work in something wide like the Pacifica. I do think the main goal is not mainstream cars but large cars and high end Jeeps and Rams and such.What if an inline six was the base engine for Chryslers?

 

As unusual design from the past there is also this inline supercharged 8 cylinders, but instead of 4 + 4 -> 3 + 3

 

jerseyjoeThank heaven, in 10 years I probably won't know who I am so FCA won't matter. Then again I could always get unlucky. I'll miss your banter at that time. I feel like you've told me to get off your lawn a dozen times already on this forum.

 

JavelinAMXPower overlap in a six plays into smoothness and a somewhat more subtle power curve, especially compared to an I4.A hybrid setup can shut down the engine if it is in a non-optimal state and an electric motor beats the l6 on both counts.


V

 

Erik LatranyiIf FCA thinks FWD does not need the inline 6, they are, once again, not understanding the North American market.I suspect the i6 will be for north south orientation only. That doesn't necessarily eliminate fwd, but the lh cars were struggling with new crash standard previously and I suspect it would be a similar challenge now. Personally I think the pentastar will be the fwd 6 of choice for a long time