Ecotec engine technical data...

I found this info in spanish, about the information i need to design my custom header to my ECOtec 1.6L, if you have tath technical data, can help me please?, thanks a lot....

- Volumetric efficiency
- Diameter of cylinder
- career
- Length of rod
- Number of cylinders
- Rpms at which peak power occurs
- Compression ratio
- Number of intake valves
- Diameter of the intake valves
- Diameter of the valve stem
- Lift camshaft (intake)
- Length to 0.050 "in grades
- Determine the center (in degrees) of the intake cam
- Separation in degrees of cam sites (LSA)
- Number of outlets
- Diameter of the exhaust valves
- Diameter of the valve stem
- Lift camshaft (exhaust)
- Length to 0.050 "in grades
- Average length of the exhaust port

I found this calc, but is too complex to me.....

Pipe Sizing Calculator

i foun this data...

2009 Aveo5 LS Hatchback Performance, Engine, & Power •
1,598 cc 1.6 liters in-line 4 front engine with 79.0 mm bore, 81.5 mm stroke, 10.8 compression ratio, double overhead cam, variable valve timing/camshaft and four valves per cylinder LXV
•
Unleaded fuel 87
•
Fuel consumption: EPA 08 city (mpg): 27, highway (mpg): 34 and combined (mpg): 30
•
Multi-point injection fuel system
•
11.0 gallon main unleaded fuel tank 9.2
•
Power: 79 kW , 106 HP SAE @ 6,400 rpm; 105 ft lb , 142 Nm @ 3,800 rpm

2009 Aveo5 LS Hatchback Brakes, Suspension, & Handling

•
Two disc brakes including two ventilated discs
•
Spacesaver steel rim internal spare wheel
•
Strut front suspension independent with stabilizer bar and coil springs, torsion beam rear suspension semi-independent with coil springs

2009 Aveo5 LS Hatchback Weight, Lights, & Exterior Dimensions

•
Body color front and rear bumpers
•
Day time running lights
•
Driver and passenger internally adjustable partial-painted door mirrors
•
External dimensions: overall length (inches): 154.3, overall width (inches): 66.1, overall height (inches): 59.3, wheelbase (inches): 97.6, front track (inches): 57.1, rear track (inches): 55.5 and curb to curb turning circle (feet): 32.0
•
Complex surface lens halogen bulb headlights
•
Luxury trim carbon fiber look on doors
•
Metallic paint
•
Fixed rear window with defogger and constant
•
Tinted glass on cabin
•
Weights: curb weight (lbs) 2,546
•
Windshield wipers with variable intermittent wipe

2009 Aveo5 LS Hatchback Cargo, Stereo Speakers, & Interior Features

•
12v power outlet: front and 1
•
Roof antenna
•
Front ashtray
•
Audio system with AM/FM
•
Cargo area cover/rear parcel shelf
•
Cargo area light
•
Cargo capacity: rear seat down (cu ft): 42.0 and all seats in place (cu ft): 7.1
•
Cellular phone other
•
Front seats cigar lighter
•
Clock
•
Full dashboard and floor console with open storage box
•
Courtesy lights
•
Front seats cup holders pop out, rear seats cup holders fixed
•
Door ajar warning
•
Door pockets/bins for driver seat and passenger seat
•
Driver front airbag with multi-stage deployment, passenger front airbag with occupant sensors and multi-stage deployment
•
Bucket driver seat with height adjustment and lumbar adjustment, bucket passenger seat
•
Height adjustable 3-point reel front seat belts on driver seat and passenger seat with pre-tensioners
•
Front seat center armrest
•
Two height adjustable head restraints on front seats and rear seats
•
Internal dimensions: front headroom (inches): 39.2, rear headroom (inches): 37.6, front hip room (inches): 51.6, rear hip room (inches): 52.8, front leg room (inches): 41.3, rear leg room (inches): 35.4, front shoulder room (inches): 53.6, rear shoulder room (inches): 52.8 and interior volume (cu ft): 90.8
•
Low tire pressure indicator
•
Online information system
•
Power steering
•
3-point reel rear seat belts on driver side, passenger side and center side
•
Three asymmetrical split bench front facing rear seats with zero adjustments
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Rear view mirror
•
Remote fuel filler door release
•
Front seat back storage
•
Seating: five seats
•
Cloth seat upholstery with additional cloth
•
Service interval indicator
•
Front side airbag
•
Four speaker(s)
•
Plastic steering wheel with tilt adjustment
•
Tachometer
•
Telematics
•
Driver and passenger vanity mirror
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Ventilation system
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Voice activating system



Read more: 2009 Chevrolet Aveo5 LS Hatchback Specifications | Automotive.com

BUT I NEED THE CAM SPECS, TIMING AND DEGREES, AND DIAMETER FROM VALVES AND VALVE LIFT....

I FOUND THIS OTHER CALC, PLEASE HELP ME I SE ONLY READ THE THREAD, THANKS...

http://www.mez.co.uk/mezporting/exhaust_length.html