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Why doesn't Toyota turbo the 1GR-FE?

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Old 11-09-2011, 02:34 PM   #1
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Why doesn't Toyota turbo the 1GR-FE?

I know that ford just started their "EcoBoost V6", but the reliability of that motor hasn't really been proven yet. However, Volvo has been adding turbochargers to their engines for a long time. Some midrange cars/wagons get the low-pressure turbo, and the higher end models get a realllyyy nice, higher pressured turbo.

Wouldn't having a well designed turbo that starts making power at low RPMs be beneficial for our trucks for towing/hauling, and to add on to that, wouldn't it improve city MPGs? And what about highway MPGs, I don't know if turbos improve much on the highway...

I know the supercharger already exists, but would a factory turbo be that much more difficult (and expensive) to add or design to come stock?

I'm not talking about a turbo diesel either, as nice as that would be, but i'm talking about a good ol' gasoline engine.

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Old 11-09-2011, 02:38 PM   #2
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I think Toyota is taking there name into consideration when opting out for the turbo, I can imagine Toyota doesn't need another big part under the hood that could malfunction, And cause more stress on the engine. I think Toyota is thinking of there reliability when it comes to a work truck, They really dont want to ruin that because of a turbo. Probably why they offer superchargers instead.
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Old 11-09-2011, 02:38 PM   #3
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10.0:1. Really the engine has plenty of power as is. Also the engine will have to redone. They don't just simply slap on a turbo to an existing engine without making some mods as a MLS head gasket, piston oil squirters, forged rods or other things.
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Old 11-09-2011, 02:40 PM   #4
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Quote:
Originally Posted by whippersnapper02 View Post
10.0:1. Really the engine has plenty of power as is.

Fixed
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Old 11-09-2011, 02:41 PM   #5
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Fixed
I fixed it too. With my numbers there would be stroke. Lol.
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Old 11-09-2011, 02:42 PM   #6
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You could always custom fab a turbo kit, two of my friends have turbos on there tacos. But to most thats like reinventing the wheel as there is the TRD supercharger and then the URD one. I personally would love a turbo when I go into the F/I would. For most people and what they do the TRD alone would be enough. For me its never enough and I'm not even boosted.....yet.
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Old 11-09-2011, 02:44 PM   #7
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Old 11-09-2011, 02:47 PM   #8
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better check ur drawers after that mess whippershitter

u gunna haz

LMFAO.
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Old 11-09-2011, 02:47 PM   #9
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better check ur drawers after that mess whippershitter

u gunna haz
I haz teh browns.
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Old 11-09-2011, 02:50 PM   #10
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noooo i don't plan to install one now, I'm just contemplating the idea of having one from the factory already, either stock or as an option.

Yeah I know our motors already produce a nice amount of power, hell it has quite a bit of grunt, but I'm also looking at efficiency. Would designing a motor with a turbo provide better MPGs? Also, since we can't get turbo diesels, a turbo that spools up at low rpms could provide a bunch of torque right?
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Old 11-09-2011, 02:52 PM   #11
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Problem is that when you are in boost you aren't saving fuel. I have heard that F150 Ecoboost truck tow just fine but they have to be in boost which uses more fuel than a NA V8.
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Old 11-09-2011, 02:55 PM   #12
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Quote:
Originally Posted by whippersnapper02 View Post
Problem is that when you are in boost you aren't saving fuel. I have heard that F150 Ecoboost truck tow just fine but they have to be in boost which uses more fuel than a NA V8.
Oh drats. haha well there goes my idea

I thought the whole thing around ford's "ecoboost" was "improved fuel economy"?
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Old 11-09-2011, 03:00 PM   #13
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They improved it by like 1-2 mpg's...... Wow big whoop
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Old 11-09-2011, 03:07 PM   #14
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Quote:
Originally Posted by myname150 View Post
noooo i don't plan to install one now, I'm just contemplating the idea of having one from the factory already, either stock or as an option.

Yeah I know our motors already produce a nice amount of power, hell it has quite a bit of grunt, but I'm also looking at efficiency. Would designing a motor with a turbo provide better MPGs? Also, since we can't get turbo diesels, a turbo that spools up at low rpms could provide a bunch of torque right?
The only reason factory turbo motors are more efficient is because of their compression ratio. Typically factory built turbo motor will have a lower compression ratio to be able to handle higher pressure/boost. The turbo isnít spooling under normal driving conditions therefore the lower compressions will get better gas mileage. Itís when you need the extra power or want to hear the whine or pshhhh that its dumping a lot more fuel thatís when your gas mileage goes to the crapper. Itís like a CAI you get addicted to the ďnoisesĒ and end up wasting more gas.

Toyota put a turbo in the old late 80ís Toyota pickups and they were a hit. I agree with everyone else turbo motors (even factory built one) are a lot of maintenance. There are several components that go along with a turbo motor that a naturally aspirated motor does not need. Like someone said earlier thatís what Supras, Celicas and Mr2s are for.

Now if Toyota did come out with one Iíd buy it. That would be bad ass if the collaborated with Yamaha again to build a turbo motor like they did the 3sgte.
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Old 11-09-2011, 03:08 PM   #15
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Old 11-09-2011, 03:14 PM   #16
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BMW is supposedly working on an electric turbo. One that apparently works on the lower RPM range.

Quote:
To improve fuel efficiency, engines are gradually shedding accessory drives. Electric power steering is now commonplace, and electric air conditioning compressors are used on hybrid cars to keep them cool while the engine's off.

Now, BMW has taken a new tack to electrifying ancillary equipment: It's created a twin turbocharger setup in which one half, the compressor that operates at lower engine speeds, is run electrically rather than mechanically.

From idle to acceleration
The news came to light in a patent application that was covered on the F30Post forum, which said it might be used in a potential future "tri-turbo" BMW model.
The patent filing highlighted the design's superior engine response--especially during the transition from engine idle to full acceleration, in part because no mechanical "waste gate" valve needs to open and close to allow exhaust gases into the turbine that powers a turbocharger.

Instead, the compressor is powered by a simple electric motor. In fact, you could make the argument that the "electric turbo" is really more of an electric supercharger, since a turbocharger contains a turbine (hence its name) powered by hot exhaust gases--and the BMW invention doesn't.

Boost vs responsiveness
Traditional single-stage turbochargers always traded off boost and responsiveness, leading to the dreaded "turbo lag" phenomenon.
Early turbocharged engines might take a second or more to spool up the speed of their turbos before they gathered enough momentum to pack more air into the combustion process, allowing more gasoline to be mixed with the greater volume of air and thus increasing power.

The smaller the turbo, the quicker it could respond--but the less power it could generate once up to speed.

The solution to this was twin turbocharging, with a lower-volume, more responsive turbo for lower engine speeds, and a higher-volume, more powerful turbo that would take over as engine speed increased.

Low-volume boost ASAP
But turbos still inherently contain some lag. So BMW proposes to power the smaller compressor electrically, with an electric motor that may already be running at some speed and can be quickly accelerated while it's clutched to the compressor drive.
But this isn't the only approach to the problem. Volkswagen built for several years a "Twincharger" 1.4-liter TFSI engine that used a small supercharger for boost at lower engine speeds.

BMW's proposal might be viewed simply as an adaptation of that idea, replacing the mechanically-driven supercharger with an electrically-driven one.
All of this innovation is driven, of course, by automakers' need to meet corporate average fuel economy standards that will increase to 54.5 mpg by 2025.
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Old 11-09-2011, 03:15 PM   #17
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Toyota probably does not do it for a few reasons.

- The motor is designed to be a N/A motor, hence the high compression. If it was meant to be a turbo motor, it would have much lower compression, and would be completely gutless when it's out of boost.

- Maintenance - More components, more parts that could possibly go bad. Tighter engine bays. Maintenance cost. Turbos do not last forever. Depending on driving habits, they can last anywhere from 30k-100k, and they're not cheap to replace.

- Reliability - Majority of people don't maintain their own vehicles and do not have the first clue of what's wrong with their vehicle when something goes wrong. Toyota has always been known to make reliable vehicles. They tried making turboed trucks before, the 22RE-T. They stopped making them for a reason. I use to work at a car shop. I've seen people bring their vehicles in because the vehicle felt really weak and does not have any power. Turns out a coupler holding the charge pipes together got old, dried and cracked open, causing the engine to lose all boost pressure.
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Old 11-09-2011, 03:35 PM   #19
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I'm actually waiting for Toyota to bring a turbo Diesel to the US, and not a sissy diesel one. As soon as they do, I'll sell my Tacoma and get one.
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Old 11-09-2011, 06:39 PM   #20
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Quote:
Originally Posted by Thucker View Post
Toyota probably does not do it for a few reasons.

- The motor is designed to be a N/A motor, hence the high compression. If it was meant to be a turbo motor, it would have much lower compression, and would be completely gutless when it's out of boost.

- Maintenance - More components, more parts that could possibly go bad. Tighter engine bays. Maintenance cost. Turbos do not last forever. Depending on driving habits, they can last anywhere from 30k-100k, and they're not cheap to replace.

- Reliability - Majority of people don't maintain their own vehicles and do not have the first clue of what's wrong with their vehicle when something goes wrong. Toyota has always been known to make reliable vehicles. They tried making turboed trucks before, the 22RE-T. They stopped making them for a reason. I use to work at a car shop. I've seen people bring their vehicles in because the vehicle felt really weak and does not have any power. Turns out a coupler holding the charge pipes together got old, dried and cracked open, causing the engine to lose all boost pressure.
Oh crap...erm well I've just got a used volvo with a turbo...i hope the previous owner took care of it. The motor seems to run fine and it's about to reach 150K.


Quote:
Originally Posted by mr2r6 View Post
The only reason factory turbo motors are more efficient is because of their compression ratio. Typically factory built turbo motor will have a lower compression ratio to be able to handle higher pressure/boost. The turbo isnít spooling under normal driving conditions therefore the lower compressions will get better gas mileage. Itís when you need the extra power or want to hear the whine or pshhhh that its dumping a lot more fuel thatís when your gas mileage goes to the crapper. Itís like a CAI you get addicted to the ďnoisesĒ and end up wasting more gas.

Toyota put a turbo in the old late 80ís Toyota pickups and they were a hit. I agree with everyone else turbo motors (even factory built one) are a lot of maintenance. There are several components that go along with a turbo motor that a naturally aspirated motor does not need. Like someone said earlier thatís what Supras, Celicas and Mr2s are for.

Now if Toyota did come out with one Iíd buy it. That would be bad ass if the collaborated with Yamaha again to build a turbo motor like they did the 3sgte.
What more maintenance would you need with a turboed vehicle?

As far as the BMW, of course the germans would attempt to do that, but more electronics = more things to go wrong right?

Lol, it'd be terrible to have a BMW in a limp home mode (or some other reduced mode) because the turbo gave out.
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