Cadillac ATS 2L Turbo LTG Four Cylinder mid-line engine specs for the Cadillac ATS:
|LTG 2.0L VVT TURBO ENGINE SPECIFICATIONS|
|Engine type||Dual Overhead Camshaft|
|Bore and stroke, in.(cm.)||3.386 x 3.386 (8.60 x 8.60)|
|Torque (lb.-ft.)||260@1700-5500 rpm|
|Newton – Meters (N-m)||351.00@1700-5500 rpm|
Here is the engine dyno graph:
Much like the N20 Turbo Four in the BMW 328i, the ATS’ 2L Turbo LTG will run out of breath at 5500 rpm. The BMW pulls a peak of around 222 whp at 5500 rpm, according to an Automobile dyno test. The 328’s N20 is under-rated by BMW as a 240 hp engine.
So although the Cadillac 2L Turbo is SAE rated at 272 hp and the BMW engine at 240 hp, the BMW is likely putting out around the same power as the Cadillac engine.
Cadillac suggests the ATS 2L turbo will hit 0-60 mph in 5.7 sec for the auto, or 5.8 sec for the manual RWD ATS. For turbo engines, automatics are often quicker than manuals because it is easier for the turbo to stay on spool through the auto shift.
GM has shown with earlier 2L Turbos (in the Kappa cars) that they are easily tunable for more boost and reliable power. The GM Stage 1 power kit for the LNF Turbo engines raised output from 260 hp (194 kW) and 260 lb.-ft. (352 Nm) to 290 hp (216 kW) and up to a robust 340 lb.-ft. (461 Nm) manual trans, or 325 lb.-ft auto. The kit had no effect on warranty, was dealer installed, and was 50 state legal. Hopefully GM will offer a similar boost for the new LTG engines.
The 2012 Buick Regal GS uses an LHU engine, for 270 hp and 295 lb. ft of torque:
|Applications:||Horsepower: hp ( kw )|
|Buick Regal CXL||220 hp (164kW) @ 5300 RPM SAE CERTIFIED|
|Buick Regal GS||270 hp (201kW) @ 5300 RPM SAE CERTIFIED|
|Applications:||Torque: lb-ft. ( Nm )|
|Buick Regal CXL||260 lb-ft (353Nm) @ 2000 RPM SAE CERTIFIED|
|Buick Regal GS||295 lb-ft (400Nm) @ 2400 RPM SAE CERTIFIED|
The newer Cadillac LTG engine is tuned to provide torque at a lower 1500 RPM and a bit higher 5500 rpm on the top end, at the cost of less peak torque at 260 for the Cadillac vs 295 for the Buick.
I predict that there will be some very nice gains from tuning these engines.