zicogold

For those who are considering or anticipating a 2 liter turbo GS, here a story about turbo-charged engines in my newspaper (yeah I still read them):

Trouble with Turbos

Which makes me wonder about those GS-F vs M4 track battles that has the Bimmer out in front on the single lap, what will happen on the second?

2Squared

The key to keeping turbo operating properly is cooling the turbocharger. Heat is not only detrimental to the turbocharger but can also rob the engine of power due to reduced air to fuel ratio.

Afrosheen

I wouldn't bother with the turbo on the GS. All it does is save money up front. Otherwise, you get less power, no weight savings (believe it or not) and a little less torque.

I'd rather drive the ES with a NA v6 than a GS with a 2l turbo. It just doesn't belong to a car this size. IS or RC, why not. But sedans are supposed to have some grunt in my opinion.

rjm

Sure don't need a turbo on the GS. 0-60 in 5.5 seconds is plenty fast for getting on the freeways around here.

metrathon

Yup, let's continue to live in the 90's. What's not to like in an engine that is thirstier, slower and less drivable than the competitors?

Most of Lexus reviews started to add a new keyword, along the usual "smooth", 'luxurious", etc. It's the word "slow".

rjm

Maybe you could provide some links to all of those reviews.

coolsaber

Same thing that happened when Lexus compared the sales numbers of the M4 to the RCF...*tears*

Seriously though, the article is all about how turbocharged engines and their fuel economy myth. And to a certain extent very true. However just like everything else mass produced in life, one size does not fit all. Yes, theoretically the turbocharged can solve fuel stats, but it also does mean the person behind the throttle must also be optimizing his or her driving style. If you take a heavy footed driver and place him in a naturally aspirated GS-F they probably will get better mileage then if you placed them in a Prius (side note soo many Prius drivers are lead footed), since they`ll probably taxing the small engine setup in a prius while barely stressing the GSF.

coolsaber

$$$$ and more units is the gamble that Lexus is taking to boost sales numbers.

coolsaber

NVH. Lexus's 4 pot is terrible at NVH. Its the same story at Volvo (who have packed their new SPA cars with insulation and noise cancelling). I think only the N20 from BMW is a tad bit bitter, i guess due to the exhaust setup. However its still not as smooth as the engine it replaced an inline V6 with some awesome exhaust note for the base engine.

peteharvey

One of the most important aspects of a GS Turbo is a 3.0 V6 Twin Turbo has a smaller displacement, with less reciprocating mass, so it would spin much more smoothly than my 3.5L V6.
The current 3.5L V6 doesn't spin as smoothly as the Lexus 3.0L V6's of the 1990's and 2000's.

neilsarkar

+1. A twin-turbo 3.0L V6 or a single-turbo 3.0L straight-6 will do wonders in terms of power delivery in the GS.

zicogold

Just to clarify, I get 12.1-11.5 l/100km in the city and 9.2-8.5 l/100km on the highway, which are in spitting distance of the 12-8 l/100/km numbers of the 1 liter ecoboost engine in the article. Now, if the objective is to boost performance and somehow maintain fleet fuel consumption numbers in compliance with government requirements, by all means turbo away.