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Old 07-09-2013, 06:11 PM   #3
neutron256
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Join Date: Jan 2012
Drives: '13 GBS Subaru BRZ
Location: Minneapolis, MN
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Neutron256's electric supercharger build

Relevant Skills:
-Basic Electronics (including some experience with micro controllers)
-Hobby Machinist
-CAD (preferred program RhinoCAD)
-Hobby Mechanic

Speciality Tools:
-Benchtop CNC Mill
-Benchtop Lathe
-3D Printer
-Assorted Shop Tools
-Limited access to a full Machine Shop

My Build

Compressor
-TD05/06 Compressor Housing (ordered)
-20G Compressor Wheel (ordered)

I may have to switch to a 25G wheel and housing but I will see how the 20G performs first.

I'll have to custom machine the backplate for the housing to serve as a mount for the motor.

Some sort of adapter will need to be created to mount the compressor wheel directly to the motor shat

Motor
Turnigy SK3 (3968-1500KV)

Kv (rpm/v) 1500 (theoretical top speed 45K RPM)
Weight (g) 363
Max Current (A) 110
Resistance (mh) 0
Max Voltage (V) 30
Power(W) 3000
Shaft A (mm) 8
Length B (mm) 68
Diameter C (mm) 39
Can Length D (mm) 68
Total Length E (mm) 92

Speed Controler
Turnigy dlux 120A HV Brushless Speed Controller

Spec.
Max Cont Current: 120A
Max Burst Current: 140A
BEC: N/A
LiPo: 6~12S
NiMH: 16~36cells
Weight: 129grams
Max RPM (2-pole): 200,000rpm
Size: 60 x 33 x 23mm
Motor Plug: Female 4mm bullet Connector
Battery Plug: Nil
Features: Spark Eliminator Lead with 2mm Plug

Controller
-Microcontroller (haven't decided but I favor the PICaxe because its cheap and simple)
-Display (I really just want a simple LED Bar display to show charge)
-Inputs
Tap into the throttle position sensor
Boost sensor
Battery Charge
Power Switch
Arm Switch

Battery
-Testing
Turnigy nano-tech A-SPEC 4000mah 10S 65~130C Lipo Pack (This will be charged outside the car. Test setup will not include a charging system)

-End Goal
Still Researching

General Concept

The boost sensor will allow the Micro Controller to keep the compressor running at a speed to match atmospheric pressure reducing intake restriction when the system is in standby. When the system is active the Micro Controller can use the boost sensor to match the amount of boost to a given throttle position.

Other Thoughts

It might be nice to have selectable recharge rates to allow the driver to choose how much and when the extra load of the battery charging happens.
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Last edited by neutron256; 07-14-2013 at 10:40 AM.
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