TURBINE G25-660 Super Core Reverse (871399-5002S)
TURBINE G25-660 Super Core Reverse (871399-5002S)
SKU:GMCTU0194
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G25-660 Super Core Reverse Turbine
PRODUCT SPECIFICATIONS
- Power range: 300 - 660 PS
- Recommended displacement: 1.4 - 3.0
- V-Band Input - V-Band Output - A/R 0.92
- New CFD-optimized, machined and forged high-capacity compressor impeller
- High flow compressor housing with provision for easy insertion of an optional speed sensor
- Direction of rotation: counterclockwise
- Double ceramic ball bearing
- With 1mm -4AN oil limiter
- 4 water connection options
- Double piston seal on compressor and turbine side
- MAR-M 1050°C turbine wheel
- Cooled water and oil
- Scope of delivery: Super Core, 2 x water connection adapter -6AN, 1 x oil limiter -4AN
Compressor side
It uses the latest generation of CFD-designed compressor impellers. These impellers deliver up to 15% more flow on 60mm wheels and up to 30% more flow on 67mm wheels (compared to the GTX GEN II).
The optionally available speed sensor can now simply be inserted into the compressor housing and sealed using an O-ring.
Hull Group
The hull assembly is fixed to the exhaust housing by a V-band and can therefore easily be placed in any position and rotated 360°.
Four large water connection options allow for high cooling water flow and easy installation of supply and drain lines via two supplied -6AN adapters.
To facilitate the assembly of the oil supply, a -4AN oil restrictor with a 1mm bore is included.
The new 8mm compact high-speed ceramic cartridge is shorter, thinner, and lighter than its predecessors. This space allows for the first time the use of double-piston seals on the compressor and turbine sides, significantly reducing oil leakage from the bearing housing.
Exhaust side
The completely redesigned turbine wheel made of the high-performance material Mar-M enables exhaust gas temperatures of up to 1050°C.
Flow could be increased by up to 15-20% compared to GTX turbochargers, with efficiency up to 74%.
ATTENTION
All GMC Racing items that provide horsepower increases beyond those permitted by the highway code in the user's country are intended for competitive use only.
GMC Racing declines all responsibility for any use of the product contrary to national regulations.

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