Sulu

I thought the Tacoma had the 2.7-litre 2TR 4-cylinder engine, not the 1AR?

And I assume if Toyota sticks the 3.5-litre 2GR V6 engine in the Tacoma that it will be re-tuned for more torque at lower revs; or perhaps they will update the 4.0-litre 1GR with the same valve-train technology as the rest of the GR lineup.

bigbwb

I would think toyota wouldn't just throw the car based 3.5L V6 into a truck without retuning it. That's why they have specific motors for different applications. Could they have just downsized the 4.0 motor and added D4S etc??

To me it would seem odd to brag about the new tacoma bring extra rugged, tough, etc and then placing a "car" motor in it

Hoovey689

iTrader: (16)

Maybe they'll hybridize it with electric motors for instant torque

Aron9000

GM has done just that with the new Colorado/Caynon. Its the same DOCH 3.6 V6 GM puts in your Impala, Buick, or Cadillac. They say its be retuned for more low down torque, but I remain skeptical. In the car applications it felt adequate, but it was definitely lacking in low end grunt and never really did feel like it really made its rated 300 or so hp. Sticking the new 4.3 v6 from the Silverado would've been a much better fit IMO, its a complete redesign and not that crappy work truck special it used to be. Way more torque than the DOCH V6 GM has.


Toyota has been making some world class V6 engines for the past 10 years or so, I'm sure the new Tacoma will completely outclass the Colorado/Caynon twins in terms of power and fuel efficiency.

spwolf

it could still be 4.0l... some rumors said D4S, so that would mean it gets full deal - all new GR engine, and not old engine to keep the price down.

Didnt realize they have TR in Tacoma, but 1AR i Venza, RX, etc...

Hoovey689

iTrader: (16)

4.0 should easily be able to make 300hp/300lbft

bigbwb

That it could! Toyota likes to make their truck motors produce more TQ than HP, I hope that continues.

Daddy-O

The 4.0L and the 3.5L use the same block.
The stroke is shorter in the 4.0L, giving it more torque.

spwolf

best part of the D4S, is that old system gives 8% more torque throughout the range, not just at the top. Thats just from D4S... so with new headers, and vvt-iE, as well as new version D4S, V6 should have 10% increase everywhere. Which should be quite noticeable.

Sulu

I believe you mean that the "stroke is longer in the 4.0L, giving it more torque".

From Wikipedia:

1GR 4.0-litre: bore of 94mm, stroke of 95mm
(square engine with bore/stroke ratio of 1:1)

2GR 3.5-litre: bore of 94mm, stroke of 83mm
(oversquare engine with bore/stroke ratio of 1.13:1)

MPLexus301

iTrader: (3)

Tacoma is still using the older 236hp 4.0L V6 and doesn't even have the 270hp unit that the 4Runner got when it was redesigned.

Current 236hp V6 + 10% power increase from D4S that spwolf mentioned above = 260hp.

4Runner's 270hp V6 + 10% power increase = 297hp.

I know that those calculations are hardly scientific and probably not representative of what we'll see in the final product, but Colorado and Canyon have come out of the gate strong, so I do hope that Toyota has plans for 300+hp on the V6 and significantly improved MPG. It would be nice if the 4Runner would also get that engine (and a weight reduction) at it's redesign.

spwolf

we will see what it gets, i would assume it is 300hp version, they wont update old engine, that does not make sense... this tech is expensive, so lets see what their new policies are.

If they indeed do give it full tech for Tacoma, it means that even lower/cheaper Toyota's will get latest tech despite the price.

MPLexus301

iTrader: (3)

If Tacoma and 4Runner are slated to get 300hp... I wonder what that means for Camry and Avalon? Honestly, I would rather that the FWD sedans get nominal increases in power and more of a focus on MPG.

300HP FWD Camry... no thanks.

All hypothetical here, but I am very anxious for Toyota/Lexus to lift the curtain on updates for the GR family.

spwolf

if they bring the same tech, it will have 300hp for sure... simply because thats how D4S works. But again, best part is that it gives 10% more torque at any point in rpm range, so cars will be much faster even from 2000rpm... usually when you get more power, it is from extending the redline.

Of course, MPG is there via both D4S and Atkinson Cycle - vvti-iE. I would expect some 20-30% improvement, although not sure how that translates to US EPA.

FrankReynoldsCPA

Have you ever driven a manual transmission pickup? There's nothing wrong with a shifter that size. It's nice to have it closer in reach. Remember, in a truck, you are seated a little higher off the floor than you are in a coupe.

If you want a car-like experience, buy a car.