The G30-770 dual ball bearing turbocharger is a compact, high-flow performance turbo built for fast response and strong mid-to-top-end power. It pairs a billet compressor wheel with a dual ball bearing center section, which reduces friction and helps the turbo spool faster than a comparable journal bearing design.
Milewell offers the G30-770 to distributors, tuning shops and engine builders, with several turbine housing options to match different engines and power targets.
Key Features
- 57.56–71.4 mm billet compressor wheel, 9 blades
- Ported-shroud (slotted) compressor housing, A/R .72, with speed sensor port
- Turbine wheel with 9 blades for quick spool
- Dual ball bearing center section
- Water and oil cooled
- External wastegate configuration
- 4 turbine housing options, V-band outlet
Turbine Housing Options
| Option | Turbine A/R | Turbine Inlet | Turbine Outlet |
|---|---|---|---|
| 1 | A/R .83 | V-band | V-band |
| 2 | A/R .83 | T3 flange | V-band |
| 3 | A/R 1.01 | V-band | V-band |
| 4 | A/R 1.21 | V-band | V-band |
Typical Applications
- Turbo upgrades for street, track and time attack builds
- Drag and circuit racing
- Custom turbo kits and engine swaps
Wholesale and OEM Inquiries
Milewell supplies performance turbochargers for resellers, workshops and turbo kit builders. Contact us for pricing, minimum order quantity, lead time and custom requirements.
To help us confirm the right configuration, please send us:
- Engine model and displacement
- Target horsepower
- Turbine housing option (1–4)
- Your current turbo model or installation photos, if available
Frequently Asked Questions
Which turbine housing should I choose?
A smaller A/R generally gives quicker spool, while a larger A/R favors top-end power. Send us your engine details and we will recommend an option.
Does this turbo need an external wastegate?
Yes. This model uses an external actuator configuration, so it needs an external wastegate in your setup.
Can I mix different turbine housings and flanges?
Please choose from the four options listed above. For other requirements, contact us for a custom quote.
See also: G30-660 and G30-900 in the same G30 series.
