JohnS
16-01-2008, 12:19 PM
http://www.edmunds.com/insideline/autoshows/detroit/2008/2009cadillacctsv.html
A concept coupe version too...
http://www.edmunds.com/insideline/autoshows/detroit/2008/cadillacctscoupeconcept.html
"You might assume from the above description that the CTS-V, which debuts at the 2008 Detroit Auto Show, is powered by a version of the Corvette ZR1's engine. And you would be correct. Indeed, the two share the same basic pushrod 6.2-liter small-block. The Eaton Roots-type supercharger nestles between the Caddy's cylinder banks and is topped with an intercooler, just as it is in the ZR1. The Cadillac runs a slightly lower compression ratio of 9.0:1 and its so-called LSA engine doesn't get the pricey titanium rods and intake valves of the ZR1's LS9. The LSA also uses more pedestrian cast pistons in place of the LS9's forged pieces, and it has a conventional wet sump instead of the Vette's racecar-inspired dry sump.
The result (which must surely be a much less expensive engine than the ZR1) is an estimated 550 hp at 6,200 rpm and an absolutely stonking 550 pound-feet of torque. General Motors has been very careful of late not to overestimate engine output, so expect the final production version that goes on sale in the fourth quarter of '08 to make at least 550 hp. And if the CTS-V has its competitors covered in the horsepower race, it tramples them in torque. The M5's high-revving V10 can muster only 383 lb-ft. The E63's big V8 pumps out almost 100 fewer lb-ft for a rating of 465 lb-ft, although it does so with 1,000 fewer revs."
A concept coupe version too...
http://www.edmunds.com/insideline/autoshows/detroit/2008/cadillacctscoupeconcept.html
"You might assume from the above description that the CTS-V, which debuts at the 2008 Detroit Auto Show, is powered by a version of the Corvette ZR1's engine. And you would be correct. Indeed, the two share the same basic pushrod 6.2-liter small-block. The Eaton Roots-type supercharger nestles between the Caddy's cylinder banks and is topped with an intercooler, just as it is in the ZR1. The Cadillac runs a slightly lower compression ratio of 9.0:1 and its so-called LSA engine doesn't get the pricey titanium rods and intake valves of the ZR1's LS9. The LSA also uses more pedestrian cast pistons in place of the LS9's forged pieces, and it has a conventional wet sump instead of the Vette's racecar-inspired dry sump.
The result (which must surely be a much less expensive engine than the ZR1) is an estimated 550 hp at 6,200 rpm and an absolutely stonking 550 pound-feet of torque. General Motors has been very careful of late not to overestimate engine output, so expect the final production version that goes on sale in the fourth quarter of '08 to make at least 550 hp. And if the CTS-V has its competitors covered in the horsepower race, it tramples them in torque. The M5's high-revving V10 can muster only 383 lb-ft. The E63's big V8 pumps out almost 100 fewer lb-ft for a rating of 465 lb-ft, although it does so with 1,000 fewer revs."