GM&GMC MID SIZE TO GET DIESEL 2015

You are reading too much into the torque figure. The new Colorado will be bigger and heavier than the Taco. 180 hp in a heavier truck will result in poor acceleration closer to the 2.7L Taco than the 4.0L Taco.

The flagship Hilux model in Australia is the Hilux TRD with factory-installed supercharger on the 1GR-FE gas engine... This is what Australians drive when they can afford gas prices:

 

The 4L60E was a pile of junk I know first hand. Seems like the 4L series loves to slip around 80k miles

 

This is true, in a drag race. But if you look at the RPM range most drivers spend 90% of their time using, the diesel actually has more available power and torque.

 

With all the taxes it's more cost effective for toyota to import the d4d engine and modify the tacoma to fit it. And I don't think Americans like the car like front end of the international pickups(Hilux, world Ranger, Coloroda etc). I think one of the reasons they are made that way is to pass Euro crash pedestrian tests. I like the taco better looks wise.

It's a mystery to me why Nissan doesn't bring V9X V6 diesel they use in the Frontier(Navara) in other countries. 210hp and 410 lbs and it already fits. I guess passing emissions is too complicated and expensive to take a risk in the USA. And they also offer a more economical 4 cil diesel in the navara with 170hp and 300lbs

 

Mine has 120K no problems what so ever.

 

I don't think that's the case given the 50% power deficit of the diesel. Do you have dyno charts comparing GM's 2.8L turbodiesel with the 3.6L LFX or the D-4D with 1GR-FE? Keep in mind the diesel's turbo needs to spool up a bit, too.

 

A lot of Americans still think diesel engines are noisy and foul smelling. The price of diesel doesn't help either. Now we all know refinement has greatly helped with the noise and smell over the years but many Americans still feel the diesel engine is still that way. Manufacturers haven't educated people enough either as to another reason why.

 

I was simply comparing current Tacoma power levels to the posted 180/346. Even if the new Colorado outweighs it by 250lbs, using those figures (especially the tq available off idle) I don't see the GM product losing much to the current toy 4.0, especially in the current poor mpg figures.

GM's new 4.3 is showing 285/335 I believe and with DI I'm guessing even in what you're claiming to be a heavier vehicle, it should walk away from a current Tacoma WITH an SC installed and get better fuel economy to boot.

Again, I'm a Tacoma fan, but due to good sales it seems Toyota has sat on their hands for too long with the power plants in these trucks. GM is going to take a share of this medium truck market with their new offering which will force Toyota to bring some new power plants to market. A win for all of us.

 

case in point, just look at the disaster that Ford designed a while back. I pity anyone that owns one.

 

Price will be the real determining factor for these diesels.

 

There may be more diesels coming in light trucks, but I seriously doubt any will ever arrive with a manual transmission. Unless I see that drive train combo, I'm not interested.

 

According to this Wikipedia article http://en.wikipedia.org/wiki/Powerstroke, the International engines were the ones with design issues. Ford switched to making its own engines in 2010.

The new Colorado is bigger dimensionally than the Taco and has a steel bed. Weight difference could be closer to 600 lb. Anyway, the 2.8L diesel doesn't compete with the 1GR; the diesel competes with the LFX 3.6L gas engine that will be offered in the Colorado. That engine makes 301 hp and 272 lb-ft in the Equinox, and 323 hp / 278 lb-ft in the Camaro.

 

I looked for a dyno comparison but couldnt find one for those engines, but i have seen a comparison and I'm not making things up. Diesels have low redlines but make all of their torque in the range most people drive in (1500-2500 rpm) whereas most gas engines need to rev much higher and are therefor not using their available power much of the time (most peak at 4500 rpm or higher). I know that on paper it looks underpowered and does have less power, but having owned a Jetta tdi with 100 hp and my dad having a 1997, 2001, and 2010 Dodge diesels, and driving a hilux diesel around nicaragua both on and off road, I will say that diesels fall short only in throttle response. I love drifting my 4.0 taco 6 speed and have great throttle response and control, but for pretty much all other driving I would prefer a diesel.

 

My point is, the power disparity between diesel and gas engines is so great, even at low rpms the gas engine can match the diesel. For example, here's a dyno chart of 1GR courtesy of Commanderwiggin.

1500-2500 rpm is cruising rpm where you don't need power... If you need to pass, step on the gas and by 3250 rpm (basically instant) you are already making equivalent of peak power of the 2.8L diesel. (Est. 18% driveline losses.)

 

Agreed, as someone who remembers the 80's GM diesels..

 

HP is low because HP is a function of torque and RPM.
346 ft/lbs at 1500 is a LOT of power for a 4,000lb truck. It translates to low HP because you are not multiplying the function by 5,000.

I had an '06 Duramax and the thing was a powerhouse... acceleration included.

 

6.6 litre...

Peak torque was actually much lower RPM but the operator was having problems getting the transmission to lock into direct drive below 2300.
This was an '06 Duramax which was running the 32 bit Bosch system and he didn't have the proper CANDii adapter.

 

Interesting. I hope this forces Toyota to bring some serious changes to the Tacoma.

 

With what I'm reading, the Colorado will NOT be using the 6cyl gas engine currently being used in the camaro, but the new 4.3 DI gas engine that will be much more suited to the weight and use of a truck.

Again, I believe the ratings are 285hp/315 tq with est mpg figures of 20-25 behind the 6sp auto. I would guess a few mods and you're looking at 320/350 and 25-28 mpg on the road which beats our Tacos handily.

Again, competition makes for better products. I'm interested to see GM's new offering in gas and diesel...and again I'll say, 180/346 in a 4500lb truck won't be a slouch (I think you'll see something closer to 200+hp) and I would guess you should easily see 25 mpg at 65mph.

 

Sorry to bring up an old thread, was searching for info on the next redesign and what the new colorado/canyon will mean to each other when I saw this. Just wanted to say you were right on the money. 196/368 is the new ratings out of the 2.8 in the diesel over seas in the colorado. They dropped the 2.5 diesel.

Being a GM guy I am really wanting to get one of these but have also been a fan of the Taco for quite sometime. Don't want/need a full size and being a big guy (6'5 280) I appreciate the added width of the current Taco and upcoming Colorado.

How do some of the bigger members fit inside the Taco? Seems pretty good just sitting in it.

Either was going to be nice to see what Toyota brings after the colorado is shown this month. I hope they put the 4.3 in it but the 3.6 would work ok too. When is the next Tacoma coming out? 2016/2017?

What diesel would they put in it? GM uses the duramax, Dodge/Nissan cummins and VM. What is used over seas that could be put in the Taco?

This is my first post, longtime lurker and been on for almost a year. Big fan of the tacos, just seeing which will be my next truck in a couple years.

Tyler