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The i30N Bible

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Well-Known Member

Technical Specifications:

Brand: Hyundai
Model: i30
Generation: i30 III
Modification (Engine): N 2.0 T-GDI (275 PS) (Performance variant)
Doors: 5
Seats: 5
Coupe type: Hatchback
Power: 275 PS/6000 rpm.
Maximum speed: 250 km/h
Acceleration (0-100 km/h): 6.1 sec
Year of production: Q4 2017 - .

Colour availability:
Polar White (PYW Solid)
Clean Slate (UB2 Metallic) (Discontinued Sep 2018)
Micron Grey (Z3G Metallic)
Phantom Black (PAE Mineral Effect)
Performance Blue (XFB Solid)
Engine Red (JHR Solid)

Length: 4335 mm.
Width: 1795 mm.
Height: 1451 - 1447 mm.
Weight: ~1584 kg (full tank, 75 kg driver)
Wheelbase: 2650 mm.
Ride height: 136-132 mm.
Front overhang: 905 mm.

Rear overhang: 780 mm.
Minimum/Maximum volume of Luggage (trunk): 395 l
/ 1301 l
Head room front/rear: 994 mm / 977 mm
Leg room front/rear: 1,073 mm / 883 mm
Shoulder room front/rear: 1,427 mm / 1,406 mm

Model Engine: THETA II series GDI
Engine construction: aluminium block & head
Position of engine: Front, transversely
Engine displacement: 1998 cm3
Charge system: Twin-Scroll Turbo 1.2 bar (MHI 28231-2GTB1)
Torque: 353 Nm (378 with overboost) /1450-4500 rpm.
Specific torque: 176.68 Nm/litre
Specific output: 135.9 bhp/litre
Power-to-weight ratio: 189.99 bhp/tonne
Weight-to-power ratio: 11.79 lb/bhp
Valvetrain: DOHC, E-CVVT
Position of cylinders: Inline

Number of cylinders: 4

Firing order: 1-3-4-2
Cylinder Bore: 86 mm.
Piston Stroke: 86 mm.

Crankshaft bearings: 5
Compression ratio: 9.5
Number of valves/cylinder: 4

Fuel System: Direct injection
Fuel Type: Petrol (Gasoline)
Fuel tank volume: 50 l
Fuel consumption(l/100km): 9.7 urban / 5.7 extra urban / 7.1 combined
Fuel consumption (km/litre): 10.3 urban / 17.5 extra-urban / 14.1 combined
Carbon dioxide emissions: MY18 (163.0 g/km), MY19 (178.0 g/km)
VED band (UK): G
CO2 Effizienz (DE): MY18 (D), MY19 (E)
Emission standard: MY18 (Euro 6c), MY19 (Euro 6d-Temp)

Engine lubricant oil capacity: 4.8 l with filter change
Engine coolant capacity: 8.5 l
Transmission oil capacity: 1.9 l
Battery capacity (Ah): 70

Drive wheel: Front wheel drive
Number of gears: 6

Gear ratios (overall):
1. 3.083 (13.36)
2. 1.931 (8.37)
3. 1.272 (5.51)
4. 0.957 (4.15)
5. 0.771 (3.34)
6. 0.641 (2.78)
R. 3.588
Top gear value theor. (km/h):
1. 59
2. 95
3. 144
4. 191
5. 237
6. 285

Front suspension: Independent type McPherson

Rear suspension: Multi-link independent
Brake system: Dual-diagonal, split circuit, power assisted with Electronic Brakeforce Distribution (EBD) and Brake Assist System (BAS)
Front brakes: Ventilated discs

Front brake diameter: 345 mm x 30 mm
Rear brakes: Ventilated discs

Rear brake diameter: 314 mm x 20 mm
Steering type: Steering rack
Power steering: Electric Steering R-MDPS
Minimum turning circle (turning diameter): 11.6 m
Steering wheel lock to lock turns: 2.57
Turning circle btw. curbs: 11.6 m
Differential (front): Electronically controlled mechanical Limited Slip Differential (E-LSD)

Payload (kg): ~470 - 550 kg
Max. weight: ~1950 kg
Max tow weight braked/unbraked: ~1,600 / 700 kg
Tire size: 225/40 R18; 235/35 R19
Wheel size:
7,5J R18 ET: 53.0 LK: 5x114,3 CB: 67,1 (~12 kg)
8,0J R19 ET: 55.0 LK: 5x114,3 CB: 67,1 (~13,1 kg)
Wheel bolts: M12x1.5
Wheel lug nuts socket size: 21 mm
Wheel bolts torque settings: 79-94 lbf·ft or 107-127 nm

Front seat weight 30.1kg / 66.4lbs
Rear seat weight 9kg / 19.8lbs

Wheel Alignment / Geometry
OEM Geometry.jpg
Last edited:


Well-Known Member

Fuel Requirements
  • For optimal performance, use unleaded gasoline which has an octane rating of RON 95/AKI 91 or higher.

Break-In Process
  • By following a few simple precautions for the first 1,000 km (600 miles) you may add to the performance, economy and life of your i30N.
  • Do not race the engine.
  • While driving, keep your engine speed (rpm, or revolutions per minute) within 3,000 rpm.
  • Do not maintain a single speed for long periods of time, either fast or slow. Varying engine speed is needed to properly break-in the engine.
  • Avoid hard stops, except in emergencies, to allow the brakes to seat properly.
  • Do not tow a trailer during the first 2,000 km (1,200 miles) of operation.
  • Do not use Launch Control during the break-in process.

At least one a month:​
  • Check coolant level in the engine coolant reservoir.
  • Check the operation of all exterior lights, including the stop lights, turn signals and hazard warning flashers.
  • Check the inflation pressures of all tires including the spare for tires that are worn, show uneven wear, or are damaged.
  • Check for loose wheel lug nuts.
Twice a year:
  • Check radiator, heater and air conditioning hoses for leaks or damage.
  • Check windshield washer spray and wiper operation. Clean wiper blades with a clean cloth dampened with washer fluid.
  • Check headlamp alignment.
  • Check muffler, exhaust pipes, shields and clamps.
  • Check the seat belts for wear and function
Once a year:
  • Clean body and door drain holes.
  • Lubricate door hinges and hood hinges.
  • Lubricate door and hood locks and latches.
  • Lubricate door rubber weather strips.
  • Check the air conditioning system.
  • Clean the battery and terminals.
  • Check the brake fluid level.

Scheduled Maintenance (Europe):

I: Inspect R: Replace

Tire Pressure


Engine Lubricants


Light Bulbs

Map: 2x W16W​
Room (sunroof): 31mm* festoon (LED)​
Vanity mirror: 2x 31mm* festoon​
Glove box: 1x W5W​
Luggage compartment: 31mm* festoon​
*31mm may be a really snug fit and require some fiddling to get them in, but it'll be better than a loose 28mm.


Rear indicators: 2x PY21W​
Reverse: 2x W16W​
Fog: 2x P21W​
License plate: 2x W5W​


Driver’s side

Engine Compartment
Last edited:


Well-Known Member
I'm not home so I'll look into all that a bit later. My problem is that I can't be 100% sure what the interior bulb types are, as I think they are different for models with or without sunroof. :rolleyes:


Staff member
Main: 2xT10
Fond: 1x Soffitte 28mm
Boot: 1x Sofitte 28mm
License plate: 2x T10
Small mirrors: 2x Soffitte 28mm
Glove compartment: 1x T10
Indicator : BAU15S PY21W
Reverse light: T15 /w16w?

Hope this is right. Could anybody confirm?

Cygnus X-1

Well-Known Member
Thread is now open for replies, I don't know what else I can add, all suggestions are welcome! :)
Would like to see the following:

Wheel offsets (18” - 49.5mm, 19” - 55mm)
Wheel weights (18” - ?, 19” - ~13.1kg/28.9lbs)
Wheel+tyre weights (18” - ?, 19”+ Pirelli PZ HN - 23.1kg/50.9lbs)
Wheel lug spacing (5x114.3mm)
Hub bore size (67.1mm)

TB size (60mm?)
Front seat weight (30.1kg/66.4lbs)
Rear seat weight (9kg/19.8lbs)

Spark plugs & gap range
MAP sensor pressure specs
HPFP pressure/flow specs
LPFP pressure/flow specs
Fuel injector pressure/flow specs
ECM information (I think the label was posted elsewhere)
Recirculation/Bypass/Blowoff valve type (diaphragm/piston, push/pull) and flange style (28234-2CTA4 - 4-bolt trapezoidal flange)
Turbo model & specs (TD04-19T?)
-Compressor map
-Compressor inlet size
-Compressor outlet size
-Compressor wheel inducer/exducer sizes
-Turbine inlet style (N/A; exhaust manifold is fused with turbine inlet)
-Turbine outlet size
-Turbine wheel material (assuming inconel)
-Turbine wheel inducer/exducer sizes
-Wastegate spring pressure

I'll add more if other things come to mind. Hopefully the service manual becomes available soon. Not sure if sticky threads are viable here but if so, I vote for stickification. Great work thus far!
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