Can the 3.5 be supercharged?

Speaking of engine swap I would also submit this dude with a big ridiculous price tag
https://cumminsengines.com/repower.aspx

 

Sold! I am still on the fence if I made the right decision with this truck due to the engine/trans combination. A diesel would make it so much better.

 

He lied

 

I would love nothing more then to see this swap happen, post all the pics. I think this truck would work very well with a small diesel in it.

 

In effect it actually does. By leaving the intake valve open during a portion of compression the motor operates as if it had a shorter stroke, developing less compression and allowing the intake charge to leak back into the intake. I am fully aware that traditionally an Atkinson cycle is achieved through different stroke lengths, but that is mainly because a system as advanced as the D4S injection with VVTiW did not exist when the Atkinson cycle engine was invented in 1882. Kinda a moot point though either way.
There is a Magnuson kit in development and a turbo charger in development from OVTune and a turbo shop in CA near him.

 

Exactly! and the intake leak back into the manifold reduces back pressure against the piston which reduces the work the engine has to over come thus making the engine more fuel efficient.

The only way a Super Charger will work on the 3rd Gen is to shut down the Atkinson Cycle, because as already stated, the piston is pushing out air into the manifold briefly on the way up on the compression stroke. But on a supercharged engine, it will have much more resistance doing do eliminating any gains the Atkinson has and could create issues.

Disabling Atkison alone will result in a much better power and torque response. These engines are setup by Toyota to run Atkinson as much as possible for gas mileage.

 

We shall see. At this point it is all idle conjecture but I would think the supercharger does not generate adequate air pressure to slow down the piston. It MAY generate enough to encourage air to go in a different direction but that would be a FAR cry from generating the required amount of air pressure to put up much resistance against an operating internal combustion engine.

Also, it might not, at which point the supercharger would only affect anything when you crank up the throttle as usual. Either way, OVTune is a lot better at this sort of thing than I am and he is currently working on getting a turbo setup tuned for the 3.5L, and Magnuson is working on a kit as well! Someone will be able to get a breakthrough here

 

I know this is a little complicated for TW, but I think you guys are missing the point. Its a VVT iW engine and is set up to mimic a Atkinson cycle through the valves. This means that the Atkinson cycle is controlled by the computer and can therefore be turned off provided someone can hack the ECM. TRD is not going to do this because it would probably make the engine non compliant with fuel economy regulations, emissions regulations, or both.

A little light reading: http://toyota-club.net/files/faq/16-01-01_faq_vvt_iw_eng.htm

 

Magnuson has said 2019 for a supercharger kit. @OVTune is working on a twin turbo.

 

I always think a lot about a supercharger. Then I see the price tag and go “eh, it runs good enough”. As my older more experienced father has always said, “there is very little these trucks can’t do, it all about the driver”. And as my late grandfather always said “go with what ya got”. Doesn’t erase the temptation, just makes good sense. On the other hand $800 for a quality time to change response, tranny gearing and some HP and torque, not a bad route. I had a guy tune my previous Chevy and it really opened it up,tuning is what you need after all these things are computers now, not just motors.

 

Oh....and if it fits there is always the idea of keeping Toyota dependability and going with a 4.6 or 5.7 V8

 

Get a better vehicle the 4Runner and drop the available supercharger in it. Done

 

Apples to oranges.

 

Atkinson cycle is not full time. Meaning it can be worked around. All it does is it leaves the intake valve,open as the piston starts the compresssion stroke, effectively lowering the effective displacement of the engine. , during power demand it is off and the full stroke is used for compression.

 

No need to remove the Atkinson feature, it becomes a Miller Cycle engine when positive displacement boost is added.

 

I would think that if the Atkinson is too much to worry about with the computer it would just be taken out of the programming and be a Miller cycle full time.

 

If it doesn't put out the numbers of a Ranger with a $500 tune, I'd probably go ahead and say, "nah."

Just saying. I'd be willing to bet Toyota will have a small turbo engine option for the taco before too long, just like the upcoming tundra.

 

Here's Magnuson's upcoming supercharger for the 2GR-FKS 3.5L. It looks very promising as far as power goes, but I don't expect there will be many takers given the ABSURD price...

https://www.magnusonsuperchargers.com/product-p/01-19-35-xxx-bl.htm

 

Where's the absurd price?

 

$6500 is absurd.

It says "up to 50% increase in hp and torque." It doesn't show a dyno graph, and doesn't say where those gains are. Let's just assume it's a 50% across the board (total fantasy). That gives a maximum power gain of 139hp. That's about $47 per hp. That's best case scenario. More realistically its probably closer to a 50-75hp gain at a much lower rpm, which would be around $100 per hp.

Compare that to $8 per hp gained by adding a $500 tune to a Ford and that $6500 looks pretty silly. You can upgrade the turbo on a Ranger for around $1-2k and get better gains than that blower. For $6500 you could build a pretty badass turbo kit with all the fixins.

I think that's what my buddy paid for his edelbrock blower kit. His resulted in a 700+hp Camaro, though.