23 highlander 4cyl turbo

osugsxr

Senior Member
Hopefully this isnt going to happen the 4runner

2023 Toyota Highlander arrives with a 2.4-liter turbocharged four-cylinder to replace the naturally aspirated 3.5-liter V6. The new engine makes 265 horsepower (198 kilowatts) and 309 pound-feet (419 Newton-meters) of torque, versus 295 hp (220 kW) and 263 lb-ft (357 Nm) from the outgoing powerplant.

Toyota notes that the fuel economy for the Highlander with the new turbo engine remains the same as the V6 engine but with lower NOx, NMOG, and CO2 emissions. The 5,000-pound (2,268-kilogram) also carries over from the six-cylinder mill.


2023 Toyota Highlander Debuts With New 265-HP Turbo Four-Cylinder
 
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shame they are keeping the current hybrid engine for the highlander. it's the same as in the rav4. it's fine in the rav4 - great around town and almost acceptable in the mountains. but no way I would want it in a car as heavy as a highlander.
this new engine, if they had done a plug in hybrid with it... that may be something to consider, you could have 400 ft/lbs torque easily.
 
shame they are keeping the current hybrid engine for the highlander. it's the same as in the rav4. it's fine in the rav4 - great around town and almost acceptable in the mountains. but no way I would want it in a car as heavy as a highlander.
this new engine, if they had done a plug in hybrid with it... that may be something to consider, you could have 400 ft/lbs torque easily.

would like to see the tundra engine in the 4runner but doesnt seem like it will happen
 
I agree that this turbo-4 will no doubt be the 4Runner engine too, but there might be an option for the tt-V6, we'll see.
 
I'm not seeing anything in the technical details for the new T24A-FTS that indicates it would be suitable or easily modifiable to fit in a RWD vehicle. The V35A-FTS has some structural/engineering gimmicks that make me think they'll swap things like the no. 1 timing cover and such to make them more easily converted as a transverse variant.

The T24A-FTS looks to be the new "Small Engine" option for likely all FWD/AWD transverse mounted vehicles. I'm still somewhat convinced that we'll see a new flavor of V35A-FTS that will become the "Big engine" option in that transverse configuration, with Toyota simplifying to two/three engines with/without Hybrid as drivetrain options.

Likely the T24A-FTS will have a variant that is more inline with the older 2.7L 2TR-FE in spirit and that will become the small option for RWD/4WD vehicles like the 4Runner and Tacoma moving forward... as much as I'm loathe to admit it.
 
Besides the upper luxury vehicles I believe we are witnessing the demise of the V6, just as I watched the V8s disappear.

I jumped on my 2018 TRD Prem when it came off lease as it had none of the nanny gear on it and I suspected what was coming. This 4Runner may very well be the last vehicle I buy.

What's next? 2cyl with quad turbos?

`just sayin..
 
I'm not seeing anything in the technical details for the new T24A-FTS that indicates it would be suitable or easily modifiable to fit in a RWD vehicle. The V35A-FTS has some structural/engineering gimmicks that make me think they'll swap things like the no. 1 timing cover and such to make them more easily converted as a transverse variant.

The T24A-FTS looks to be the new "Small Engine" option for likely all FWD/AWD transverse mounted vehicles. I'm still somewhat convinced that we'll see a new flavor of V35A-FTS that will become the "Big engine" option in that transverse configuration, with Toyota simplifying to two/three engines with/without Hybrid as drivetrain options.

Likely the T24A-FTS will have a variant that is more inline with the older 2.7L 2TR-FE in spirit and that will become the small option for RWD/4WD vehicles like the 4Runner and Tacoma moving forward... as much as I'm loathe to admit it.

Have you heard anything solid about Toyota moving 4runner production to Mexico? Between the rumors about the neutered powertrain to Toyota moving production to Mexico, my 2014 might be the last 4runner for me. Pretty sure my 2017 tundra is the last tundra for me as well because I’m not feeling the new one at all.
 
I have not heard shit about the new 4Runner to be honest with you besides maybe 2024 and that it will have a hybrid option most likely.

Beyond that? I have no actual details or verifiable rumors. Toyota's been pretty quiet about it... Apparently they have been playing around with some new Tacoma Mules though? So maybe they're looking to do a dual release?

I know they talked about moving the Tacoma to Mexico, but not sure if they would do that with the 4Runner? If anything, I'd be curious if they started selling the 4Runner overseas again since the new Tacoma, 4Runner, and possibly Hilux should soon share the same platform like they did many many years ago?
 
I agree that this turbo-4 will no doubt be the 4Runner engine too, but there might be an option for the tt-V6, we'll see.



Wishful thinking the way things have been going. Can't see us getting a detuned TTV6 if thats the base in the tundra/sequoia and something "smaller" most likely going into the new GX. Doesn't leave much reason why they would give us a decent 4runner engine option if the next 2 and 3 steps up already have the TTV6. Can totally see them giving us this highlander 4banger turbo with a bit more HP in it.

Hope Im wrong......
 
Who knows what they're going to do with the next generation 4Runner, getting all excited about this engine might be much to do about nothing.

Honestly, I don't think it would be the end of the world, If this is the new option, or similar.

Yeah, it doesn't make any more horsepower, but it has 309 lbs torque, and I read somewhere else that it occurs at 1,700 RPM. Compared to the four liter, that's a fantastic torque band. I think the four liter makes about 150 ft lb at that same RPM, based on a diyno chart I saw a while back.

Considering most daily driving under normal circumstances is in that 1500 to 2,500 RPM range, the 4 cylinder will have you right in the meat of the torque band right whem you need it. ( Unlike the 4.0, which requires multiple downshifts to get you up to 4K RPM where the torque lives)

I bet this thing won't have nearly the amount of gear hunting or lack of power in the hills as the current gen 4R does.

Even if this doesn't make it into the 4R, I bet this motor would be great and it's a Taco, especially hooked up to a manual.

Somebody mentioned the 2.7, and that's kind of what I thought Toyota would do with the next gen. GM has a turbo 2.7 liter that makes 310 horsepower and 430 foot pounds of torque, I bet that thing's a beast and would be awesome in a 4Runner.
 
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Folks - I am happy with any horsepower. I lived thru the days of 80HP 4 cylinders :)

Isn't that the truth!

I also remember a Caroll Shelby interview when the first Vipers came out. He was saying most people confuse torque with horsepower. Torque was what mattered. Turbos aren't what I look for but if the torque on the 4 cylinder is double the current 4.0 in the ~2000 rpm range, that has to be a good thing.
 
Minor update, I found the NCF and a better technical overview of the T24A-FTS engine; it does seem to use the similar No.1 & No.2 timing cover assemblies that the V35A-FTS does (I theorize that part of the reason they went with this set-up vs. the single timing cover Toyota used for so long was that this allows them to "swap" the No.1 timing cover for one that works with transverse and longitudinal setups, but only time will tell if that theory proves true.) So I suppose it is possible this engine could be converted to a RWD/4WD vehicle with less work than I originally thought.

I wish there were better real-world dyno testing for both this engine and the new V35A-FTS. So far both spout a weird RPM range for their "peak torque" output, something I'm not too used to seeing on Toyota's documents... The few dyno charts I saw with the new Tundra don't seem very flat to me so extrapolating that over to the T24A-FTS, I doubt it's making anywhere close to 317ft.lbs of torque at 1700RPM; more than likely it's closer to the 3000RPM number where you're seeing the full torque. But this is a situation where time and further testing will show us the reality of the claims being presented.

Just figured I'd throw that out there and correct an assumption I made earlier in the thread.
 
Minor update, I found the NCF and a better technical overview of the T24A-FTS engine; it does seem to use the similar No.1 & No.2 timing cover assemblies that the V35A-FTS does (I theorize that part of the reason they went with this set-up vs. the single timing cover Toyota used for so long was that this allows them to "swap" the No.1 timing cover for one that works with transverse and longitudinal setups, but only time will tell if that theory proves true.) So I suppose it is possible this engine could be converted to a RWD/4WD vehicle with less work than I originally thought.

I wish there were better real-world dyno testing for both this engine and the new V35A-FTS. So far both spout a weird RPM range for their "peak torque" output, something I'm not too used to seeing on Toyota's documents... The few dyno charts I saw with the new Tundra don't seem very flat to me so extrapolating that over to the T24A-FTS, I doubt it's making anywhere close to 317ft.lbs of torque at 1700RPM; more than likely it's closer to the 3000RPM number where you're seeing the full torque. But this is a situation where time and further testing will show us the reality of the claims being presented.

Just figured I'd throw that out there and correct an assumption I made earlier in the thread.

Well, peak TQ at 3000RPM is still much better than what we get with the 4.0 and 3.5 V6's, so I'd still consider that a significant improvement.
 
Minor update, I found the NCF and a better technical overview of the T24A-FTS engine; it does seem to use the similar No.1 & No.2 timing cover assemblies that the V35A-FTS does (I theorize that part of the reason they went with this set-up vs. the single timing cover Toyota used for so long was that this allows them to "swap" the No.1 timing cover for one that works with transverse and longitudinal setups, but only time will tell if that theory proves true.) So I suppose it is possible this engine could be converted to a RWD/4WD vehicle with less work than I originally thought.

I wish there were better real-world dyno testing for both this engine and the new V35A-FTS. So far both spout a weird RPM range for their "peak torque" output, something I'm not too used to seeing on Toyota's documents... The few dyno charts I saw with the new Tundra don't seem very flat to me so extrapolating that over to the T24A-FTS, I doubt it's making anywhere close to 317ft.lbs of torque at 1700RPM; more than likely it's closer to the 3000RPM number where you're seeing the full torque. But this is a situation where time and further testing will show us the reality of the claims being presented.

Just figured I'd throw that out there and correct an assumption I made earlier in the thread.

I had a Japanese website link with the Toyota bench dyno for the v35a but the result is dead now and I can't find another. But the torque was almost perfectly flat from 1600-3500ish. It's a pretty obvious electronic cap on torque so it's just flat at the level the software limits it to. It was overlayed on a 5.0 V8 and more than doubled the v8 by 1500rpm.. And it should be significantly higher torque at lower rpm than the Ford EB engines because the stroke is about 30% longer and it has the piston bores aligned with the outer sweep of the crank path. I think it'll be hard to make more peak power, but pretty easy to tune in more low-mid rpm power/torque.

I think the wheel dyno charts are really noisy with all the other stuff between the engine and dyno. With no way to lock the trans in gear at low rpm and force lock the torque converter there's just no way to get a very good Dyno run for anything other than peak torque. Most don't even start the data set until 2500rpms or higher.

For those of us at high elevation I'm sure the 2.4 turbo will really out perform the 4.0. My neighbor has a GM 2.7 and it's pretty great TBH. At 5000 feet it'll out pull my 5.7 tundra. It's a GM so I have little confidence in the truck around it lasting very long. But the engine output is really good. Make that same engine into about a 4 liter I6 and it'd really be a fantastic truck engine.
 
I had a Japanese website link with the Toyota bench dyno for the v35a but the result is dead now and I can't find another. But the torque was almost perfectly flat from 1600-3500ish. It's a pretty obvious electronic cap on torque so it's just flat at the level the software limits it to. It was overlayed on a 5.0 V8 and more than doubled the v8 by 1500rpm.. And it should be significantly higher torque at lower rpm than the Ford EB engines because the stroke is about 30% longer and it has the piston bores aligned with the outer sweep of the crank path. I think it'll be hard to make more peak power, but pretty easy to tune in more low-mid rpm power/torque.

I think the wheel dyno charts are really noisy with all the other stuff between the engine and dyno. With no way to lock the trans in gear at low rpm and force lock the torque converter there's just no way to get a very good Dyno run for anything other than peak torque. Most don't even start the data set until 2500rpms or higher.

For those of us at high elevation I'm sure the 2.4 turbo will really out perform the 4.0. My neighbor has a GM 2.7 and it's pretty great TBH. At 5000 feet it'll out pull my 5.7 tundra. It's a GM so I have little confidence in the truck around it lasting very long. But the engine output is really good. Make that same engine into about a 4 liter I6 and it'd really be a fantastic truck engine.

Would be cool to see those, the only one I saw for the V35A-FTS looked like a shallow ramp with a plateau. When the EcoBoosts first came out, Ford's diagrams looked basically like a mesa starting relatively low and staying very flat. But I agree, testing may be a bit tricky... I would just rather not end up with another 3rd gen Tacoma situation or be forced to get the hybrid option simply because the non-hybrid is too gutless where you need it.

Time will tell once more people start playing with the vehicles, so we just have to wait. :)
 
Would be cool to see those, the only one I saw for the V35A-FTS looked like a shallow ramp with a plateau. When the EcoBoosts first came out, Ford's diagrams looked basically like a mesa starting relatively low and staying very flat. But I agree, testing may be a bit tricky... I would just rather not end up with another 3rd gen Tacoma situation or be forced to get the hybrid option simply because the non-hybrid is too gutless where you need it.

Time will tell once more people start playing with the vehicles, so we just have to wait. :)

All I can really say at this point is that the v35A feels really powerful in the tundra. The mileage is not as good as I expected. And the only time I've driven one of the turbo 4s from Toyota what was the weekend that we ended up with the NX 200 t loaner. I was not impressed at all. It should have felt substantially zippier vs a heavier RX 350 at 5,000 ft. And it didn't. I hope the turbo 2.4 is whole lot better better. On paper it should be. Have you had a chance to drive one?

But a lot of it comes down to how Toyota implements the tune in the transmission and gearing. I'm not very optimistic given how weak of an effort they did on the current Tacoma. And the hybrid solution for the Sequoia is just a head scratcher. Really hard to understand how that ever made it past the drawing table. They basically got none of the great things that hybrids can do out of a hybrid. And maybe interior worse. And probably made towing, hauling, and nearly everything else worse too.

I think the best case scenario is that they build a version of the V35A for the Tacoma and 4runner. But I'm not holding my breath.
 
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