OK, the 3.5 should be a good engine

My question is at what point does pushing the envelope create an engine that has less durability and reliability due to running harder at higher RPMs. Just a question that I don,t have an answer for.

 

I'm sitting here looking at a 3.5 torn down after a durability test. It was ran @ 6400 rpm / full load. It WILL handle the load. BTW, we never change the oil in most tests! Makes me a firm believer in synthetic.

 

Nissan pretty much led the charge on this idea with their VQ35 engine back in the early 2000's. It was in EVERYTHING from the 350z, Altima, Maxima, Frontier, Xterra, Rouge, Murano, Quest Minivan, and the Infiniti models too....literally every car they make except the small economy boxes that only offered 4 cylinders. You could also say that GM did a similar thing with their smallblock V8 but the applications just weren't as widespread.

God I wish you should share more info with us. I'd kill to see the things you're seeing!
What kind of test parameters were there? Simulated load, duration, cooling, etc...

 

Mitsubishi was doing that with the 3000GT line back in the early-mid 90s. All the trim/performance levels had the same block, but with an NA SOHC, NA DOHC, and the twin turbo DOHC heads. I have no clue if they did anything like that with anything else they offered though.

 

I think that ship has sailed. its not Pushing envelope that creates problems, its going cheap (like putting car engine in the truck) that creates problems.
Also swapping truck parts with less expensive cheaper parts.
ExampleS?
#1. Wheel bearings on 2gen. Made in China with plastic roller cages.

#2. Not many people realize that some of the internals of 1GR on Tacoma were swapped to cheaper replacements. If you open 05-08 engine. Those manufactured in Japan (yes there are some) will have part numbers that can be traced to Prado/Land Cruiser parts. if you try to get those parts for Tacoma they are now different parts (more cheaply made)
This is why a lot of guys with 05-08 will hit A lot of miles on their trucks, in the meantime a lot of 2014 guys are complaining about oil pump failures and weird engine noises.

Now going back to your question, which can be best answered with simple math.
1 GR 2 Gen has gear ratio of 3.73 at the wheels. If we say trucks run with the same size tires.
2.5 Gen with gear ratio of 4.30 will wear 13% more of its power train components than 2gen.
Simeple think, that rubber seal that prevents transmission oil from leaking will have to survive 13% more rotations. Now if that seal was made for trucks that seal would have built in extra material, but since as many people stated Toyota is pretty much pullign this out of their car fleet, You can bet your A$$ that seal is going to be something cheap. Btu wait there is more.
On new truck 1gear is 20% lower than what 2 gen truck does
That means overall you are looking at 30% wear increase on the engine every time you are on 1gear.
Since new transmission combining with new gear is lower than 2gen on every gear 1-4 and only 5th and 6th are higher, unless you buying 2.5 gen to drive on anything but the highway you will get massively increased wear. Considering this is car engine so Truck duty in dust, snow, water etc will only make things worse. You could be looking at the much shorter life span.
Will that truck survive warranty? In majority cases yes.
Will that be the same long lasting, unbreakable Toyota truck..... Definitely no.
Its End of the Era, Toyota is taking the same path as GM and we all know how great this is working out for GM.

 

They will be still pulling 4800LB truck.
Simple.
if you had two trucks, exactly the same. And drove one on 4Hi and other on 4L (2:1 ratio) only.
Would you change oil on both trucks at 5000 miles or one at 5000 and other at 2500 miles?

 

It's BlueT. He likes to compare apples and rhinoceroses.

 

Your correct but still exaggerating slightly

Actually he likes to compare mid sized trucks to 1 ton trucks
And girl motors to boy motors? What ever the hell that means.

 

Yes, him and his buddy think that engines have genitals. It's amusing.

 

The 2016 has a van motor. We've got people on here complaining about the GM twins 3.6L and that they drove it and it "sucked". Do you really expect the "new" 3.5L Tacoma with the same 6-speed auto and same design to be any better? Much like the 2015 Colorado the 2016 Tacoma will be much heavier than the comparable 2nd gen. Any "gains" in HP will be nullified because of the weight. It'll probably be quicker unloaded, but loaded is a different story.

The V8 Colorado is quicker all around than the 2nd gen V6. When both are loaded to GVW the Tacoma accelerates quicker. A testament to the fact that Toyota designed the 2nd gen for actual truck duty. Whereas the 2016 is designed for soccer moms to do Costco runs.

 

Are we talking the V8 Colorado from back 5 years ago? Because GM doesn't make a V8 Colorado right now.

I know you're exaggerating but the Ford Coyote V8 and Ecoboost are found in many Ford cars and "vans". Does that mean the most reliable truck in our work fleet is powered by a van motor? If so I'm all for van motors. The "van" engine in my wifes truck has no problem moving 6000 lbs of camping gear behind us without ever breaking 4000 RPM. The Colorado can't do that with even 3500 lbs behind it.

The problem with the Colorado is that the motor is screaming anytime you ask it for power because it's best power production is right against the redline. I'm hoping Toyota will have a flatter torque curve due to better tuning for the application. Until the 2016 is out we won't know how "van-ish" the Tacoma will be compared to the Colorado.

 

Completely false. According to Toyota the frame will be made with higher strength steel which will increase rigidity and be lighter. Comparing Toyota and GM engines is comparing apples and oranges. Just because the 3.6 in the Colorado has specific traits doesn't mean that the Tacoma will be the same in any way.

 

blah blah blah truck stuff... MERICA!!!

 

A coworker just got rid of her 2011 Cadillac SRX because that GM 3.6 decided to stop playing nice with others. She bought a Ford Edge, and is starting to realize that mistake as well after driving her son in-law's Venza.

From what I've seen, that 3.6 is either great or it's crap. I don't feel like playing engine roulette.

 

Yes? I like truck stuff...

 

Whoever started the fallacy that a "van" motor is any worse than a "truck" motor needs to be repeatedly kicked in the nuts; then shot....twice

The 1GR-FE in our trucks right now is just as much of a "van" motor as the new one will be. It's virtually the same damn block as many other GR engines with a longer stroke and different heads. The damn connecting rods are longer; this doesn't make it an invincible truck engine. Wake the hell up people.

If anything, it would make it LESS reliable due to higher piston velocity, like Chris 4x4 was talking about. So much so, Toyota had to REDUCE the reline to ensure it didn't tear itself apart at high RPM.