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    • Chevy fixes LT4 heat soak issues in the 2017 Camaro ZL1 and builds an absolute beast

      What is there to even say at this point? The Americans are on top of the game. We knew the 2017 Camaro ZL1 would be good just not that it would be this good. General Motors heard the cries from people complaining about C7 Z06 LT4 heat issues and unlike other manufacturers actually addressed the engine issues.


      The ZL1 has 11 heat exchangers. Yes, 11. That helps cool the motor which needs to spin its relatively small 1.74 liter Eaton TVS blower hard to make the 650 horsepower it does. MotorTrend reports they could not get the car to overheat despite going through six sets of rear tires in four days of testing.

      The question now is, with what GM has learned about keeping the LT4 cool in the ZL1 will the Z06 get addressed? Will there be some kind of factory cooling package? Z06 owners must be wondering why the Camaro is getting the goodies and not them.

      Let's get to the performance which is jaw dropping. The Camaro ZL1 manages to top the incredible Corvette Grand Sport around Willow Springs with a 1:26.16 laptime. To put this in perspective, it tops the 997.1 Turbo S, AMG GT S, and a McLaren 570S prototype:

      Quote Originally Posted by MotorTrend
      At the big track at Willow Springs Raceway, we had Randy lap a SS 1LE, a ZL1 with a six-speed manual and a ZL1 with the 10-speed auto. The 1LE ran a 1:28.29. Thatís a great lap, especially when you consider that time is 0.1 second ahead of the previous-generation Camaro Z/28, which is a former BDC winner and track-focused monster with more horsepower and torque. Next up was the ZL1 with a manual. That stick-shift ran a blistering quick 1:26.16, besting the 2017 Corvette Grand Sport (1:26.28), a 2016 Mercedes-AMG GT S (1:27.04), a 2015 Porsche Turbo S (1:27.17), and a 2017 McLaren 570S prototype (1:27.21). Impressed yet?
      That feat was accomplished with a manual transmission example. The fancy new 10-speed auto said to shift faster than a Porsche PDK by GM you would think would pick up some time but Randy Pobst was quicker in the manual example.

      They did test the 10-speed auto in a straight line in California weather with California 91 octane and came up with 0-60 in 3.5 seconds and a 1/4 mile sprint of 11.5 @ 125. On the East Coast with drag rubber this car will run 10's.

      So, it's amazing around the track, quick in a straight line, and a bargain at $61,140. Any downsides? Yes, it has most of its weight on the nose with 54/46% front to back weight distribution and a curb weight of 3926 pounds. It's heavy.

      It does everything so damn well the weight penalty is not a huge issue especially considering the car undercuts a Hellcat by 600 pounds and the only thing the Hellcat can best the ZL1 in is going straight.

      This is the best all around performance car in the world right now for the money.

      2017 Chevrolet Camaro ZL1
      POWERTRAIN/CHASSIS
      DRIVETRAIN LAYOUT Front-engine, RWD
      ENGINE TYPE Supercharged 90-deg V-8, alum block/heads
      VALVETRAIN OHV, 2 valves/cyl
      DISPLACEMENT 376.0 cu in/6,162 cc
      COMPRESSION RATIO 10.0:1
      POWER (SAE NET) 650 hp @ 6,400 rpm
      TORQUE (SAE NET) 650 lb-ft @ 3,600 rpm
      REDLINE 6,500 rpm
      WEIGHT TO POWER 6.0 lb/hp
      TRANSMISSION 10-speed automatic
      AXLE/FINAL-DRIVE RATIO 2.85:1/1.81:1
      SUSPENSION, FRONT; REAR Struts, coil springs, adj shocks, anti-roll bar; multilink, coil springs, adj shocks, anti-roll bar
      STEERING RATIO 11.1:1-15.1:1
      TURNS LOCK-TO-LOCK 2.3
      BRAKES, F; R 15.4-in vented, 2-pc disc; 14.4-in vented, 2-pc disc, ABS
      WHEELS, F;R 10.0 x 20-in; 11.0 x 20-in, forged aluminum
      TIRES, F;R 285/30ZR20 95Y SL; 305/30ZR20 99Y SL Goodyear Eagle F1 Supercar 3
      DIMENSIONS
      WHEELBASE 110.7 in
      TRACK, F/R 63.4/62.6 in
      LENGTH x WIDTH x HEIGHT 188.3 x 74.7 x 52.4 in
      TURNING CIRCLE 38.4 ft
      CURB WEIGHT 3,926 lb
      WEIGHT DIST, F/R 54/46%
      SEATING CAPACITY 4
      HEADROOM, F/R 38.5/33.5 in
      LEGROOM, F/R 43.9/29.9 in
      SHOULDER ROOM, F/R 55.0/50.4 in
      CARGO VOLUME 9.1 cu ft
      TEST DATA
      ACCELERATION TO MPH
      0-30 1.6 sec
      0-40 2.2
      0-50 2.7
      0-60 3.5
      0-70 4.3
      0-80 5.2
      0-90 6.2
      0-100 7.4
      0-100-0 11.1
      PASSING, 45-65 MPH 1.4
      QUARTER MILE 11.5 sec @ 125.0 mph
      BRAKING, 60-0 MPH 96 ft
      LATERAL ACCELERATION 1.07 g (avg)
      MT FIGURE EIGHT 23.1 sec @ 0.91 g (avg)
      2.4-MI ROAD COURSE LAP 1:26.48 sec
      TOP-GEAR REVS @ 60 MPH 1,400 rpm
      CONSUMER INFO
      BASE PRICE $63,435
      PRICE AS TESTED $67,425
      STABILITY/TRACTION CONTROL Yes/Yes
      AIRBAGS 8: Dual front, front side, f/r curtain, front knee
      BASIC WARRANTY 3 yrs/36,000 miles
      POWERTRAIN WARRANTY 5 yrs/60,000 miles
      ROADSIDE ASSISTANCE 5 yrs/100,000 miles
      FUEL CAPACITY 19.0 gal
      EPA CITY/HWY/COMB ECON 13/21/16 mpg (est)
      ENERGY CONS, CITY/HWY 259/160 kW-hrs/100 miles (est)
      CO2 EMISSIONS, COMB 1.24 lb/mile (est)
      RECOMMENDED FUEL Unleaded premium

      This article was originally published in forum thread: 2017 Camaro ZL1 First Test started by BlackJetE90OC View original post
      Comments 2 Comments
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        I could see that big wing corvette mule getting the LT4 with this new cooling package. If you look at recent spy shots, it has huge grill openings like the ZL1. Maybe a bigger blower as well.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by BlackJetE90OC Click here to enlarge
        I could see that big wing corvette mule getting the LT4 with this new cooling package. If you look at recent spy shots, it has huge grill openings like the ZL1. Maybe a bigger blower as well.
        It's realistic. If it has a bigger blower, that's fine. Plus LT4 guys will have an easy retrofit.

        The DOHC V8 is almost certainly for the mid-engine Corvette.