Ask the Car People.SM


Ford and GM Small Displacement Direct Injection Turbo Engines - READ ONLY

20 messages,  Last post on Jul 16, 2011 at 6:51 PM

You are in the Automotive News & Views-Archives Forum.

What is this discussion about? Ford, Chevrolet Cobalt, Automotive News

Messages Page 2 of 2

#11 of 20 carbon buildup possible by kurtamaxxxguy

Jun 12, 2011 (8:04 pm)

All those with these new DI engines should have their favorite mechanic keep tabs on how much carbon builds up on the intake valves.
DI engines have had this problem for several years, with the euro engines possibly having the most buildup.
I learned this from various forums as well as info provided by a leading oil specialist researching cleaning methods (sorry, I can't say any more about the latter).

#12 of 20 Re: Ford and GM Small Displacement, Direct Iinjection, Turbo Emgines (tdtow [dtownfb] by roadburner

Jun 13, 2011 (10:34 am)

Replying to: dtownfb (Jan 29, 2008 10:56 am)
Would the turbo engines require premium gas for optimum performance?
 
Who cares? Let's assume that the price difference between regular and premium is 25 cents. If you own a car that gets 25 mpg and you drive it 15,000 miles annually the price differential works out to the huge sum of
I hope you are sitting down
$150 per year
That's a whopping $12.50 per month, or 41 cents per day.
Big deal...

#13 of 20 Re: carbon buildup possible [kurtamaxxxguy] by roadburner

Jun 13, 2011 (10:43 am)

Replying to: kurtamaxxxguy (Jun 12, 2011 8:04 pm)
DI engines have had this problem for several years, with the euro engines possibly having the most buildup.
 
That issue concerns me as well. My 2007 Mazdaspeed3 produces adequate power(287 bhp with a Mazdaspeed CAI) and returns good fuel economy(25 mpg-30 mpg, depending on driving conditions), but the valve deposit issue makes me hesitate to keep it past 100,000 miles.

#14 of 20 Ecotec II review by steve_ HOST

Jul 15, 2011 (8:13 pm)

Good review of the new Buick Regal CXL Turbo engine in this Wall St. Journal story, but most of the info may be registration only.
 
"The engine—intercooled, direct injection, 16-valve—is punchy, eager, with ample low-end torque (258 pound-feet at 2,000 rpm) and the kind of seamless flexibility across the rev range you'd have expected from larger, naturally aspirated engines. You can thank the clever engine-management software, and variable valve timing, for that.
 
And the car is quick. If you stand on the gas, the Regal Turbo will chirp and wiggle its way to 60 mph in about 7 seconds, quite respectable for a car weighing nearly 3,800 pounds. At highway speeds it has surprising reserves of orneriness. "
 
From Buick, an Engine Lacking Nothing but a Roar

#15 of 20 Re: Ecotec II review [steve_] by hpmctorque

Jul 16, 2011 (6:10 am)

Replying to: steve_ (Jul 15, 2011 8:13 pm)
Good article, Steve, but it contains a mistake; the Hyundai Sonata turbo displaces 2.0 liters, not 2.4, which is the displacement of the naturally aspirated Sonata. The Sonata turbo generates significantly more horsepower and torque than the Regal Turbo (274 vs. 220 and 269 vs. 258, respectively), while delivering better fuel economy. The Sonata also beats the Regal on price. All this doesn't necessarily mean that the Sonata is the better car, since the Regal may have some compensating attributes, such as refinement, over the Sonata. We'll soon find out, since I imagine there will be a comparison before too long.
 
Also, at 3800 lbs., the Regal is porky for its size, don't you think?
 
I wonder how many people will cross shop the Regal and the Sonata?

#16 of 20 Re: Ecotec II review [hpmctorque] by steve_ HOST

Jul 16, 2011 (6:24 am)

Replying to: hpmctorque (Jul 16, 2011 6:10 am)
In my town, people will only shop Buicks. I see one foreign car for every ten Big 3 rides.

#17 of 20 Re: Ecotec II review [steve_] by roadburner

Jul 16, 2011 (8:29 am)

Replying to: steve_ (Jul 16, 2011 6:24 am)
I live near Louisville, which has two Ford assembly plants, I'd say that the domestic/import ratio is 50/50.

#18 of 20 steve... by iluvmysephia1

Jul 16, 2011 (8:46 am)

Michigan will be like that!

#19 of 20 Louisville by benjaminh

Jul 16, 2011 (8:46 am)

And within a few hundred miles of us we have a huge Toyota plant (in state) and a huge Honda plant (Indiana)...I agree with you--somewhere around 50/50.

#20 of 20 Re: Louisville [benjaminh] by roadburner

Jul 16, 2011 (6:51 pm)

Replying to: benjaminh (Jul 16, 2011 8:46 am)
I know a couple of guys who work at the Chamberlain Lane Ford plant. Both guys have Ford pickups, but one guy also has a 3 Series and the other guy has a Camry.

Messages Page 2 of 2

Advertisement

Browse by Category

Browse by Vehicle
   View All Vehicles

Browse by Board
Browse by Topic
View All Topics

Edmunds Community

Advertisement