OK, the 3.5 should be a good engine

Yeah, because an engine is only about thermal efficiency. Let's just forget about other efficiencies such as mechanical efficiency or volumetric efficiency.

Since you brought up thermal efficiency, what specific heat values were you taking into account? What about their enthalpies and entropies? What about attributes of the engine itself? Is it a reversible adiabatic? What about friction loss due to heat? What's the K factor of the fuel-air mixture?

I mean, you sounded like you're way more educated than I am. So please show me your knowledge, but don't just go half way and simplify things. I'm sure you can ask your physics teacher if you need some help.

And if efficiency due to power consumption/conservation is your end goal, going full electric is the way to go. Much less efficiency loss and things to break in an electric motor, compared to a myriad of components in an ICE.

This is a thread about just the 3.5L engine in the next Tacoma, and you managed to digress into how much electricity your wife's Entune is drawing.

Mind fucking blown

 

I'll join in the derp fun

 

You and me both!
Excellent post

 

And thats the show for today folks, tune in tomorrow and catch the action pack drama staring Sterdog, 7GR and Blue T.

 

No worries I can do more precise calculations once we graduate some people from 5th grade math and Science...

Leave no kids behind, we have to wait for some....

I know this is 3.5L thread but think about the benefits, some people just find out that electricity to power their gadgets in their cars do nto spontaneously appear from nowhere.
This is the same like educating people to turn off their home lights to conserve energy, or use LED lights, or preserve their drinking water.
Science is fun.

 

This^^^^^^ Lets get back on track, some of you have some
great things to say. Being that I'm buying this bad boy when it's
available I want to hear more!

 

And here is where I was talking about the thermal efficiency number changing based on what work is being done.

Also

So thermal efficiency is not a constant.

You could be right about 30% being the max number. I was pulling the 70% number from memory on several alcohol based fuels on internal and external combustion engines. However, my arguement still holds since 30% would be our MAX number on work for forward motion, but not include all of the extra loses to things the crankshaft drives. Also, since 30% is a max number, that number will fall off when the engine is not operating at 100% efficiency, which will be any time the engine enters open loop.

 

Some people's condescending attitudes just make me laugh.

It's like they have all the answers and know they're absolutely right on everything, as long as they pull some paragraphs from Wikipedia

 

Yup. I'm all good. Sorry Chris, BlueT shows up a lot on these threads trying to find reasons to knock everything based on some loose associations. I"ll leave it alone and you can delete my previous post.

 

So I wonder if the new engine will make more power only because it revs higher, like the Colorado engine.

 

And it all has to do with what, the 3.5 engine? Not at all.

 

Please do, do all the calculations for this new 7GR engine, because this thread is about the 7GR engine only.

I'll wait patiently until humans as a species seizes to exist

 

If an engine hits peak Torque early and can hold it then, yes, an engine will have higher HP numbers. Torque is for pulling and getting moving so it tends to be more important to trucks.

Until someone from Toyota releases some 3.5 L numbers we're all taking guesses, some with information making them educated guesses, but still guesses.

 

No official figures yet, but it depends on if you're asking if it'll make more peak net power, or power (torque) at any specific rpm range.

My guess is the 7GR might be rated +/- 10hp from Colorado's rated figure.

 

We all know horse power is calculated from torque and the RPM it arrives at, right? No torque down low in the rev range means it has to rev to make power. Period. Who wants to tach out the engine just to make any power. No towing capability with that.

 

You are both correct, but, like the 'five blind men describing an elephant story' it all depends upon your point of view and what you are trying to describe.
I do have a background in Mechanical Engineering/Thermodynamics (Penn State) and have designed power generation equipment using a variety of fuels.
Mechanical efficiency, thermal efficiency, and fuel efficiency are all different disciplines that exist simultaneously in the vehicle (or system for the technically inclined).
Electrical components are not as energy efficient as you might believe, however, as they do not constantly draw on the mechanical efficiency of the engine, a greater fuel efficiency is seen over a time period where the power consumed by the devices is amortized by the power output of the engine.

 

If only Toyota would offer the 4.6L V8 for the Tacoma, but that may eat into the sales of the Tundra.

Or a diesel, but that has drawbacks too other than purely cost factors.

Personally I love the down-low torque on tap, but I also like the top-end rush when I wring it out on the on-ramps. A super torquey engine would give me none of that top-end feeling.

 

See you getting there... I think you are mixing first and second (highlighted portion) You are right on second but that applies to final numbers (moving object from point A to point B) when you want to know how much it costs to Drive a vehicle. So you are right, but for calculating how much electricity costs you you don't need that second number. Again I simplified things to get easier calculation.
But I am stopping Science talk not to bore others...

Oh key
All Hail 7GR...

 

This is what is bugging guys like BlueT. The common theme is that guys would like the entire new Tacoma to be the 1st generation Tundra. More power, heaver frame, and a bit larger. The thing is that Toyota would rather build an incremental upgrade to the current Tacoma rather than build two half tons in there line up. With CAFE requirements and a lot of other reasons V8 small trucks are not coming back.

I think the 3.5 L engine will be solid as long as it's geared properly for the Tacoma. If people want to tow with it, well, light loads it will do great but anything over that 3,000 to 4,000 lbs sweet spot will likely put a lot of strain on the truck and require the engine to operate in the high RPM range to make enough power.

At the end of the day, if you need more power than the 3.5 L for towing, you should look at moving up a truck.