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Performance upgrades for new Impala...


MountaineerTom

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Posted

Does anyone know if there are any kind of performance stuff for the new Impala's, like a Hypertech programmer or something?  My wife seen one the other day and said she might like to have one, which really caught me off gaurd because she never says she likes any kind of car.  Of course, I'm thinking of stuff to do to it already.

Thanks for any info,

Tom

Posted

Hmm, i've never driven one but here are the specs from Chevys site:

Engine   Type 3400 V6 SFI

3800 V6 SFI

 

RPO LA1

L36

 

 Displacement (liters/cu. in.) 205/3.4

231/3.8

 

 Bore & stroke (in.) 3.62 x 3.31

3.80 x 3.40

 

 Bore & stroke (mm) 92.0 x 84.1

96.5 x 86.4

 

 Compression ratio 9.6:1

9.4:1

 

 Block material  cast-iron

cast-iron

 

 Cylinder head material cast-aluminum

cast-iron

 

 Valves per cylinder 2

2

 

 Induction SFI

SFI

 

 Ignition system direct

direct

 

 Hydraulic lifters hydraulic roller

hydraulic roller

 

 Cam drive chain

chain

 

 Alternator rating (amps) 105

105

 

 Battery (SAE rating, cca) 600

690

 

 Recommended unleaded fuel 87 octane

87 octane

 

 Redline (RPM) 6000

6000

 

 Horsepower/kW @ engine RPM 180/119 @ 5200

200/149 @ 5200

 

 Torque/N-m (lb. -ft. @ engine RPM) 205/251 @ 4000

225/305 @ 4000

 

Suspension Specifications - Impala

 

Both Impala models feature a 4-wheel independent suspension with specially tuned MacPherson struts

at all four corners.

Impala Sedan Touring Suspension

Variable-rate front coil springs and nonlinear rear coil springs

Hollow 32mm front and 14mm solid rear stabilizer bars

Impala LS Sport Touring Suspension

Variable-rate front coil springs and nonlinear rear coil springs

Hollow 30mm front and 17.2mm hollow rear stabilizer bars

 

Steering

Power rack-and-pinion for both models

Steering Specifications

Ratio (overall)

 

- 3400 V6 engine

15.2:1

 

- 3800 V6 engine

13.3:1

 

Turns stop-to-stop

2.9

 

Turning diameter curb-to-curb (ft./m)

38.0/11.6

 

 

Brakes

Power-assisted 4-wheel disc

Standard ABS for Impala LS

Compact brake booster

Large brake components

Brake Specifications

 

Front Brakes

U.S. Standard

Metric

 

Rotor size (dia. x thick.)

11.93 x 1.26 in.

303 x 32mm

 

Total swept area

303.0 sq. in.

1955.0 sq. cm

 

 

Rear Brakes

 

Rotor size (dia. x thick.)

11.0 x .43 in.

278 x 11mm

 

Total swept area

276.0 sq. in.

1781.0 sq. cm

 

 

Wheels

16-inch steel with Deluxe bolt-on wheel cover - standard on Impala Sedan

16-inch Custom aluminum wheel - optional on Impala Sedan

16-inch Sport 5-spoke aluminum wheel - standard on Impala LS

Tires

P225/60R-16 all-season blackwall - standard on Impala Sedan

P225/60R-16N Goodyear Touring - optional on Impala Sedan

P225/60R-16N Goodyear Touring - standard on Impala LS

Compact spare tire on all models

 

Transmission Specifications - Impala

 

4T65-E 4-Speed Automatic Overdrive Transmission

The 4T65-E transmission is standard on both the Impala Sedan and Impala LS.

Technical Features of the 4-Speed Automatic Transmission:

Dual-phase sprocket that drives two half-width chains rotating 180 degrees out of phase, helping

reduce the gear noise generated by each chain.

Family of electronic controls that help protect against over-revving the engine in low-range gears

and monitor changes in driving conditions to adjust and maintain optimum shift quality.

Long-life transmission fluid which is designed to need replacing at up to 100,000 miles of normal

service.(1)

1 Maintenance needs vary with different uses and driving conditions. See the Owner's Manual for more

information.

Transmission Specifications

Type 4-speed automatic  

   

RPO MX0 (4T65-E)

 

Gear ratios  

First gear 2.92

 

Second gear 1.57

 

Third gear 1.00

 

Fourth gear 0.71

 

Reverse 2.39

 

Final drive ratios 2.86/3.05

 

Case material aluminum

 

Dimension Specifications - Impala

 

NOTE: All dimensions shown are inches/millimeters unless otherwise noted.

     

 

Exterior

Wheelbase 110.5/2807

 

Length 200.0/5080

 

 Width 73.0/1854

 

 Height 57.5/1461

 

 Tread width - front 62.0/1574

 

 Tread width - rear 61.3/1557

 

 

Interior  Headroom - front 39.2/996

 

Headroom - rear 36.8/935

 

 Legroom - front 42.2/1072

 

 Legroom - rear 38.4/975

 

 Shoulder room - front 59.0/1499

 

 Shoulder room - rear 58.9/1496

 

 Hip room - front 56.5/1435

 

 Hip room - rear 55.7/1415

 

 Passenger volume (cu. ft./liters) 104.5/2959.1

 Cargo volume (cu. ft./liters) 18.6/526.7

 Interior volume, EPA index (cu. ft./liters) 123.1/3485.8

 

Capacities Seating 6/5

 

Fuel tank capacity (gal. approx.) 17.0/64.4

 

 Curb weights, estimated (lbs./kg, est.)  

 - Impala Sedan

3389/1537.2

 

  - Impala LS

3466/1572.1

 

 

Trailering(1) Trailer classification Light

 

Gross trailer weight (lbs./kg, up to) 1000/454

 

 Maximum tongue load (lbs./kg) 100/46

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