IS350's 3.5 L V6 is being replaced by a 3.0L for 2016?
05-18-15, 05:57 PM
#16
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05-18-15, 05:59 PM
#17
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05-18-15, 06:02 PM
#18
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I read somewhere that the 2.5 liter engine (4GR-FSE) and the 3.5 liter engine (2GR-FSE) share many of the same components. So, I suspect that there will be inventory stockpile implications that cause Lexus to decide to update both engines at the same time.
Since the rumor of the day is that Lexus will drop a new 2.0 liter turbo in the base model IS, it is my opinion that, for financial reasons, Lexus would also make the switch on a new engine to replace the 3.5 liter at the same time, or very soon after, so that they don’t lose the benefits of parts commonality that they currently benefit from. Keeping two production lines and complete sets of engine parts has got to be enormously expensive. Switching away from the 3.5 liter at the same time as the 2.5 liter may save them many millions.
Since we know Lexus has already begun to adopt the new mantra of 0.5 liter per cylinder that other manufacturer’s have adopted, they may be able to draw from the same common parts bins that other manufacturer’s use, which will make inventory logistics even easier and cheaper for Lexus than it was. So, it’d be doubly financially beneficial for them if they were to switch all their engines quickly to this new mantra.
As far as what the IS 350’s engine will become, I can only see it becoming a new twin-turbo 3.0 liter V6. Similar to the new Mercedes Benz C400. I doubt they’ll do an inline 6 and with a V-6 I think it necessitates two turbos, right? And there’s no way they’ll downgrade to a 3.0 liter naturally aspirated engine, no way. I imagine the new IS 300tt will be a beast performance-wise.
What I don’t understand is how Lexus will maintain their reputation for reliability with all these new turbos. Get the old reliable 350’s while they last people. Glad I did.
Since the rumor of the day is that Lexus will drop a new 2.0 liter turbo in the base model IS, it is my opinion that, for financial reasons, Lexus would also make the switch on a new engine to replace the 3.5 liter at the same time, or very soon after, so that they don’t lose the benefits of parts commonality that they currently benefit from. Keeping two production lines and complete sets of engine parts has got to be enormously expensive. Switching away from the 3.5 liter at the same time as the 2.5 liter may save them many millions.
Since we know Lexus has already begun to adopt the new mantra of 0.5 liter per cylinder that other manufacturer’s have adopted, they may be able to draw from the same common parts bins that other manufacturer’s use, which will make inventory logistics even easier and cheaper for Lexus than it was. So, it’d be doubly financially beneficial for them if they were to switch all their engines quickly to this new mantra.
As far as what the IS 350’s engine will become, I can only see it becoming a new twin-turbo 3.0 liter V6. Similar to the new Mercedes Benz C400. I doubt they’ll do an inline 6 and with a V-6 I think it necessitates two turbos, right? And there’s no way they’ll downgrade to a 3.0 liter naturally aspirated engine, no way. I imagine the new IS 300tt will be a beast performance-wise.
What I don’t understand is how Lexus will maintain their reputation for reliability with all these new turbos. Get the old reliable 350’s while they last people. Glad I did.
As someone else pointed out in the earlier post, a 3.0L - High REvving- NA engine, would be much better than a Turbo. That could be a possiblity for MY2016.
05-18-15, 06:04 PM
#19
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Yep, that's another possibility. But, I read that Toyota Supra will be getting a V4 engine.
05-18-15, 06:10 PM
#20
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Yes, most of us already knew that IS250 will be replaced by the IS200T in MY'16, but didn't think that they might be planning to replace the IS350. We'll know for sure by the month of July'16.
05-18-15, 06:11 PM
#21
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05-18-15, 06:12 PM
#22
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In the month on July. There's a whole another thread on that topic, if you want to know more.
05-19-15, 04:10 AM
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Given that the 3.5L is still around in the new RX and even the new Tacoma, I am not sure if it would even make sense for Lexus to retire it from a costs standpoint. But maybe its just me in that I would rather have an increase in redline by 1,000rpm, and a bumped output in the 330-340hp range and more aggressive gearing to match? It would make sense that they keep the 3.5L and also give it Aktinson cycle capabilities like the 3.5L in the Tacoma or even the 5.0L in the RCF to boost cruising MPG.
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
05-19-15, 09:22 AM
#25
Exactly, Lexus's new turbocharged cars will be far more reliable than the competition. Why?
Lexus makes their own turbos in house. From design to raw materials to installation of the vehicle, everything is in house. This allows for quality, durability, and reliability of their turbos. They don't outsource them like the competition does.
Lexus makes their own turbos in house. From design to raw materials to installation of the vehicle, everything is in house. This allows for quality, durability, and reliability of their turbos. They don't outsource them like the competition does.
05-19-15, 10:18 AM
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Given that the 3.5L is still around in the new RX and even the new Tacoma, I am not sure if it would even make sense for Lexus to retire it from a costs standpoint. But maybe its just me in that I would rather have an increase in redline by 1,000rpm, and a bumped output in the 330-340hp range and more aggressive gearing to match? It would make sense that they keep the 3.5L and also give it Aktinson cycle capabilities like the 3.5L in the Tacoma or even the 5.0L in the RCF to boost cruising MPG.
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
05-20-15, 05:10 AM
#28
I don't think this means anything. The current IS has DI. Why would a change in the RX have anything to do with a change in the IS?
05-20-15, 06:08 AM
#30
Given that the 3.5L is still around in the new RX and even the new Tacoma, I am not sure if it would even make sense for Lexus to retire it from a costs standpoint. But maybe its just me in that I would rather have an increase in redline by 1,000rpm, and a bumped output in the 330-340hp range and more aggressive gearing to match? It would make sense that they keep the 3.5L and also give it Aktinson cycle capabilities like the 3.5L in the Tacoma or even the 5.0L in the RCF to boost cruising MPG.
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
Hhowever, given that the 2017 Q50/Q60's are scheduled with what seems to be a healthy TT V6, maybe lexus will keep the 3.5L and add some turbo's to it while also giving it an Aktinson cycle to boost MPG? Either way, Lexus/Toyota is always hushed about progression and usually doesn't release anything until last minute; we will have to wait until July for MY16 updates (and again the following year for MY17).
the 3.5 in the RX350 is the same as the ES350 and the Camry.
The 3.5 in the soon-to-be-released tacoma is completely different, it only shares it's displacement with the other engines.
The 3.5 in the IS350 is shared with the RC350 and GS350.