Direct Injection helps updated Cadillac V-6 get more power from less gas
General Motors is expanding the use of direct fuel injection technology on it's engines, with the next recipient being the 3.6L V-6 that's used in the 2008 Cadillac CTS. The 2008 version of the engine is expected to get a fuel efficiency increase of about three percent while at the same time getting a power bump from 255hp to 300hp putting in on par with the 4.6L Northstar V-8.
A smaller 2.8L version of the twin-cam, 24 valve V-6 is sold in overseas markets but has never been available in the US market. If GM offered a direct injected version of the 2.8L in US models like the CTS and Aura, they could achieve performance comparable to the current 3.6L while getting significantly better mileage. Besides the CTS the new engine will also appear in the updated 2008 STS.
[Source: Autoweek]
Reader Comments (Page 1 of 1)
1985 Gripen 5:15PM (3/27/2007)
"A smaller 2.8L version of the twin-cam, 24 valve V-6 is sold in overseas markets but has never been available in the US market"
Is that the same GM 2.8-liter twin-cam, 24 valve V-6 sold in the SAAB 9-3 Aero in the U.S. market?
http://www2.saabusa.com/93s/features.asp?start=home
http://www2.saabusa.com/935/features.asp?start=home
That engine (due to turbocharging) puts-out 250 peak horsepower and 258 lb-ft of torque. The vehicle gets 21 combined mpg according to fueleconomy.gov. With direct injection, if the 3% increase were true regardless of displacement, this car would get 21.63 mpg. Woopee!
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MikeW 8:42PM (3/27/2007)
The same 2.8 V6 that is the base engine for the CTS (Why did GM cheap out and only install one muffler?)
GM gave up the variable resonance intake manifold in this engine, the 2gr-fse still has its (ACIS in toyota speak)
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SOLARINPA 7:16PM (12/30/2007)
GM Please make the Cadillac Cien a real production car instead of a concept!
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