Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, ly7 facts? in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; A friend of mine came across the data. I thought these motors ran off of regular fuel?.
Engine specifications: 2004 ...
ly7 facts? A friend of mine came across the data. I thought these motors ran off of regular fuel?.
Engine specifications: 2004 3.6L Global V-6 Engine (LY7)
Configuration 3.6L 60-degree DOHC V-6
Peak Power (SAE net) Estimated 255 hp @ 6,500 rpm
Peak Torque 250 lb.-ft./339 Nm @ 2,800 rpm;
(90% of peak produced from 1,600 rpm to 5,800 rpm)
Displacement (cc) 3,564
Bore x Stroke 94 mm x 85.6 mm
Valvetrain Dual overhead camshaft
Roller-finger followers valvetrain
Hydraulic lash adjusters
Four-cam continuously variable cam phasing
Two-stage roller-chain camshaft drive
Variable Cam Timing Intake: 132 degrees ATDC initial timing
50 crankshaft degrees advance authority
Exhaust 111 degrees BTDC initial timing
50 crankshaft degrees retard authority
Compression Ratio 10.2:1
Bore Centers 103 mm
Firing Order 1-2-3-4-5-6
Fuel Shutoff 6,700 rpm
Engine Idle Speed 600 rpm
Fuel System Sequential port fuel injection (returnless)
Engine Management Torque-based; Bosch Motronic ME 9 32-bit micro-hybrid controller
Intake Manifold Dual-plenum, equal-length with 2-position variable volume control (resonance tuned)
Throttle 68-mm single bore; electronic control (ETC)
Ignition Individual coil-on-plug; individual cylinder knock control
Fuel Requirement Premium fuel recommended
Emissions Controls Dual close-coupled catalytic converters
(1.15L ultra-thinwall ceramic)
Positive crankcase ventilation (PCV)
Intake- and exhaust-cam phasers (EGR)
Evaporative emissions system
Re: ly7 facts? the owner's manual for my '07 3.6 states:
" If your vehicle has the 3.6L V6 engine (VIN code 7), use regular unleaded gasoline with a posted octane rating of 87 or higher. For best performance or trailer towing, you may choose to use middle grade 89 octane."
mine runs great on 87 Re: ly7 facts? My LY7 runs great on premium fuel. E93, eat it up. Mmm-mm, Techron. Re: ly7 facts? E93 is 93% ethanol...did you get new injectors?? or do you mean 93 Octante lol.
Originally Posted by
DavidBoren Re: ly7 facts? Second time I made that mistake, dammit. Yes, 93 octane. I might be stupid. Re: ly7 facts? That's alright..I misspelled Octane haha.
Originally Posted by