![]() 04/10/2018 at 19:22 • Filed to: None | ![]() | ![]() |
Ford uses a 3.5 Twin Turbo V6 for better emissions, FCA makes a new 7.0L V8 for the Rebel. Oh, and top trim gets the Hellcat.
Report: Production Ram Rebel TRX to Get Two Engines, Different Names - Motor Trend
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![]() 04/10/2018 at 19:25 |
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‘MURICA (f yea)
![]() 04/10/2018 at 19:31 |
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This. Is. Awesome.
FIAT is that crazy uncle that doesn’t have his shit together but is a blast to hang out with
![]() 04/10/2018 at 19:33 |
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So their bringing a 427 hemi back.
![]() 04/10/2018 at 19:34 |
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...So when’s that engine going into the Challenger/Charger so they can brag they brought back the 427 HEMI?
![]() 04/10/2018 at 19:34 |
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428, LIKE THE LS7
![]() 04/10/2018 at 19:35 |
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Hopefully when it gets lighter.
![]() 04/10/2018 at 19:40 |
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If I’ve learnt anything its that turbos don’t make engines more efficient necessarily, neither does downsizing; mazda has proven it time and again with their 2.5 four cyl engine, so has GM with the LS.
Maybe a 7 liter v8 isn’t an insane proposition; let’s see how efficient it is compared to the ecoboost which isn’t flamboyantly good either. Plus, FCA could get a turbo’d v6, if it’s true that the Pentastar is very similar (If not the same block?) to the maserati v6, they already know how to place turbos on it, perhaps not a dual turbo setup, but ya’ll get the point.
![]() 04/10/2018 at 19:40 |
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Sadly the smaller SRT Cuda didn’t happen and FCA probably doesn’t have the R&D funding nor the insane justification to build aluminum block V8s.
![]() 04/10/2018 at 19:40 |
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I already loved the Rebel, but this 7.0 version sounds absolutely perfect.
![]() 04/10/2018 at 19:43 |
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That’s hysterical.
![]() 04/10/2018 at 19:59 |
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...“apple.news”?
![]() 04/10/2018 at 20:00 |
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It allows for the capability to be more efficient. You can have the efficiency or you can have the power, but not at the same time. It’s also not just about fuel economy, it’s about greenhouse gasses. The LS/LT is a bad example, as it is now showing the limitations of the OHV engine, because the AFM/DOD engines aren’t as reliable as non-DOD/AFM engines.
![]() 04/10/2018 at 20:00 |
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It was from the news section on my iPhone.
![]() 04/10/2018 at 20:04 |
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Well, other manufacturers found the limits of OHV way before GM did, again I think it’s a very crude engine and I’m not sure I want to see a single shaft handling something as advanced as VVT or even cylinder deactivation.
But Mazda has done a great job without blowers, then again their engines have very high compression and that ought to gave its own limitations.
![]() 04/10/2018 at 20:18 |
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Still wrong about the LS... So wrong...
But also, Mazda has figured out they can’t do it without blowers, which is why they now have the 2.5 turbo.
![]() 04/10/2018 at 20:21 |
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More like Cobra Jet.
![]() 04/10/2018 at 20:48 |
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Does the 7.0L make it the largest currently sold in any non commercial vehicle?
![]() 04/10/2018 at 20:50 |
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While pushrod engines do have those limitations and more, the cylinder deactivation is just as bad in OHC engines.
For example, Honda’s VCM on their SOHC V6 is full of complaints about it burning oil. At least there’s a fix called VCMuzzler that disables the system.
![]() 04/10/2018 at 22:08 |
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I wouldn’t call the LS crude, IMO it’s an incredibly boring engine in it’s base forms, because it does it’s job so well that you don’t really notice it. It’s smooth, torquey, quiet, responsive, powerful enough, etc. It’s just not interesting, or good with cylinder deactivation.
![]() 04/10/2018 at 22:09 |
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Yes, afaik.
![]() 04/10/2018 at 22:20 |
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You should write a post about the LS!
The main thing about the Mazda plant is compression, and they’re a bit late to turbocharging because they could be late!
![]() 04/10/2018 at 22:27 |
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Well, an LS7 is perfectly great!
Though I think engines become less efficient as the size of the combustion chamber increases. .
![]() 04/10/2018 at 22:30 |
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LS3 is best LS.
![]() 04/10/2018 at 22:31 |
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LT4 is best LS.
![]() 04/10/2018 at 22:33 |
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What makes you think they have little RnD money?
I’m curious, I really wouldn’t know...
![]() 04/10/2018 at 22:49 |
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No, it overheats and sounds incredibly bad at low RPM.
![]() 04/10/2018 at 22:50 |
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Touche....
![]() 04/10/2018 at 23:07 |
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I just find it odd that FCA is still using iron blocks while Chevy and Ford have gone to aluminum since the 90s with the LS1 and modular 4.6L. Even the GT500 had its 5.4L block go from iron to aluminum back in 2011 (removed ~150 lbs off the nose!). Whatever FCA’s reasoning is, making a lighter V8 hasn’t happened despite the competition having done the same over a decade ago.
![]() 04/10/2018 at 23:12 |
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I think they saw the current mopar engines and thought they were appropriate? Plus, I think the pentastar is a relatively advanced v6, and the multi air tech is pretty good (if not liscenced)
![]() 04/11/2018 at 02:13 |
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Really, the solution is a battery big enough to handle the deactivated mode loads, and shut the engine entirely off instead of deactivating cylinders.
More efficient and more reliable.
![]() 04/11/2018 at 02:15 |
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No, the Bugatti Chiron’s is bigger, at 8.0 liters.
![]() 04/11/2018 at 07:10 |
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I should. Maybe after finals...
Well, they did it on the Mazdaspeeds, too.
![]() 04/11/2018 at 10:19 |
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Aah, yes. Silly of me to miss that :)