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Tags: wards ward auto best engine engines toyota lexus v6

Tag Link: wards ward auto best engine engines toyota lexus v6

Ward's Auto on 2GR-FSE: Toyota V-6 Twice-Injected With Innovation
Twelve fuel injectors — a DI injector and a port injector for each of the engine's six cylinders — is the stuff of an injector-supplier's dreams, but the data indicate there's a meaningful gain from the novel fueling design.
Engineers indicate brake-specific fuel consumption improves about 4% compared with a comparable DI-only engine, and start-up emissions are reduced by about 20%.

Yerace says the PFI system typically is used by itself only during the actual cranking part of the engine startup phase. He adds that this is when a substantial portion of the “raw” emissions of a cold start are produced, which for DI engines typically is exacerbated by the emissions “spike” during cranking that comes from immediate delivery of highly pressurized fuel.
At most other times, sophisticated engine management mapping controls the intricate interplay of the DI and PFI systems to achieve the best results depending on a multitude of variables.

But during high-load operation, only the DI injectors are used, maximizing DI's ability to deliver a cooler, denser air/fuel mix that promotes maximum power and torque.

At 306 hp, the 2GR-FSE is one of the highest specific-output normally aspirated V-6s available in the U.S., while delivering (in the IS 350) city-cycle fuel economy of 21 mpg (11.2 L/100 km) and a combined-cycle rating of 24 mpg (9.8 L/100 km).

The city figure ties Audi's A6 (DIG 3.2L DOHC V-6) for class leadership, and the combined fuel-economy number ties BMW's 330i (3L DOHC I-6) — yet the 2GR-FSE handily outpowers and out-torques both competitors. Read Article
Ward's Auto on 2GR-FSE: Toyota V-6 Twice-Injected With Innovation



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jon21jon21 - 8/14/2007 9:51:47 AM
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Sweet! I like D.I. in a car.

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keyzi747keyzi747 - 8/14/2007 11:18:23 AM
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GM's new new v6 used in the STS and CTS are very well in this league, too. It also has the same hp rating as the Lexus di v6.

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HyundaiHyundai - 8/14/2007 1:46:03 PM
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... but a higher displacement and less torque.


pushrod27pushrod27 - 8/14/2007 7:46:28 PM
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3.6 vs 3.5 liters... huge displacement advantage. Idiot. A Hyundai fan has no place being critical of any other car (save Daewoo or Kia) and no place on an auto enthusiasts' website. Hyundai is for losers.


HyundaiHyundai - 8/15/2007 2:57:39 AM
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Poor pushrod! Need a tissue?


Will_Will_ - 8/14/2007 11:34:46 AM
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A magnificent engine from a magnificent company. I find it interesting that the engine ties the 330i's combined fuel economy, while still edging the BMW in power. No wonder BMW added more turbos to produce the 335i. ;)

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dlindlin - 8/14/2007 11:45:43 PM
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Guess people don't bother wasting their time on some amateur....

I'm with Will on his comment even though I own BMW and INFINITI, and no LEXUS. After testing IS 350, I'm just amazed how Lexus can deliver a V6 smoother than BMW I6 (Note: lots of people confuse the smoothness of BMW trans w/ engine) and more powerful than VQ35. The fuel efficiency of 3.5L tieing 3L engine is even more remarkable achievement when compared to VQ35 in my G35.

While LEXUS has some steering and suspension tuning to catch up w/ BMW or INIFNITI, they have however made a great engine nobody else can for now, not even when INIFNITI adds VVEL to VQ37, except maybe Porsche, which however has much less weight and needs more fuel. That's exactly why BMW turns to turbocharging.

Therefore Will has made a fair comment as he did not say LEXUS out-handles BMW or is more sporty. It's you who makes BMW looks bad w/ this easy cut and paste article.

Stay focused on the subject of discussion next time, will you?

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HyundaiHyundai - 8/15/2007 4:13:52 PM
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You are right, Sport, the Lexus IS 350 ($49,100 CAD base price) is a real bargain compared to the 335i ($49,900 CAD base price).

Even with fully loaded packages, the 335i leaves the IS 350 in the dust with premium options ($64,516 for the IS 350 vs. $64,935 for the 335i). But, I guess the Lexus is the bargain, because the 335i doesn't even get ventilated/cooled seats.


bagwellbagwell - 8/15/2007 7:59:34 PM
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fine, so BMW under rates its horsepower. I'm sure if Lexus had twin turbos it'd be faster too....so what's your point SPORT?????????????????????????? The article is about normally aspirated engines....period.


dlindlin - 8/17/2007 1:41:52 AM
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Don't try to create new word.

"ridiculousness"- suggest to change to "absurdness".

This website should ban those who haven't finished high school.

By the way, maybe you should get a Renault during last 2 year instead of BMW if you really believe Formula 1 has something to do with your car.

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dlindlin - 8/18/2007 11:18:49 PM
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Great. Thanks for teaching me an awkward long word when there are more concise synonyms. English is my third language and it's kind of messy with all these words created by people who "ness" everything.

Diff Equation? Good to know you are taking the same class I took 16 years ago. That's typically taught in 2nd year of engineering school. Honestly speaking, I find it kinda boring because there are all different kind of patterns you can go by to solve the question. It may look complex but in fact it's not.

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