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SPR400 V2 Surge Tank Special Features
Single Fuel Pump Port
8AN fuel fuel ports
Perfect fuel pressure control
Staged fuel pump operation
Superior fuel pressure stability due to our design protected 3-to-1 fuel pump manifold
Plug & Play
The SRP400 V2 features the Aftermarket Industries 6 way (30A per pin) Plug & Play electrical connector to allow independent control of up to three fuel pumps.
Bio-Fuel Compatible
Zero fuel vapour loss
Zero fuel smell GUARANTEED due to anodising process
Unleaded, Ethanol, C16
Capacity
Engineering
Precision machined from aerospace grade 6061-T6 billet aluminum, designed using best practice engineering principles and stress tested to ensure maximum safety for all motorsport applications
Plug & Play 6 way (30 amp per pin) electrical connector - independently stage fuel pump operation for 1-3 fuel pumps.
Compatible Fuel Pumps
Walbro 255
Walbro 460 F90000267 F90000274
Walbro 520 / 525 F90000285
Bosch BR540 (RECOMMENDED) (Also known as the DW400)
Wiring Guidelines: Required For WARRANTY
| Fuel Pump Qty | Main Power Wire | Fuel Pump Power Wire | Relay Wire Size | Relay Size | Fuel Pump Circuit Breaker |
| Single Pump | 10 AWG Tefzel Mil-Spec 22759/34 | 10 AWG Tefzel Mil-Spec 22759/34 | 16 AWG Tefzel Mil-Spec 22759/16 | 35A-50A | 25A-30A Circuit Breaker or Fuse |
| Twin Pump | 4-6 AWG Main Wire Tefzel Mil-Spec 22759/16 (50A-60A Breaker/Fuse) | 10 AWG Tefzel Mil-Spec 22759/34 | 16 AWG Tefzel Mil-Spec 22759/16 | 50A | 25A-30A Circuit Breaker or Fuse |
| Triple Pump | 4 AWG Main Wire Tefzel Mil-Spec 22759/16 (80A Circuit Breaker/Fuse) | 10 AWG Tefzel Mil-Spec 22759/34 | 16 AWG Tefzel Mil-Spec 22759/16 | 50A | 25A-30A Circuit Breaker or Fuse |
*Fuel Pumps are NOT included in this package
SPR400 V2 Surge Tank Power Support Guidelines
Fuel Pump | Power HP (Ethanol) | Power HP (Unleaded & C16) | Base Fuel Pressure* (PSI) | Total Fuel Pressure** (PSI) | Voltage*** (v) |
1x Walbro 460 | 500 | 600 | 40* | 70 | 13.5v-14v |
1x Walbro 520/525 & Bosch B540 | 650 | 700 | 40* | 70 | 13.5v-14v |
2x Walbro 460 | 850 | 1000 | 40* | 75 | 13.5v-14v |
2x Walbro 520/525 & Bosch BR540 | 1200 | 1300 | 40* | 75 | 13.5v-14v |
| 3x Walbro 460 | 1400 | 1500 | 40* | 80 | 13.5v-14v |
3x Walbro 520/525 & Bosch BR540 | 1500 | 1600 | 40* | 80 | 13.5v-14v |
*BASE FUEL PRESSURE MUST BE SET @ FIGURES STATED OR LOWER TO ACHIEVE HORSEPOWER TARGET
(Recommended Fuel Injector: Bosch Motorsport 1650cc)
**Maximum Peak Fuel Pressure (Base Pressure + Boost Pressure)
***Maximum Voltage
Rotary Engine: Reduce Horsepower HP Support Figures by 30%
Add a Fuel Bulkhead Fitting (Sold Separately): A major issue with any aftermarket fuel system is a pressurised overflow from the surge tank back to the OEM fuel tank. A common mistake is the use of adapters;the OEM return in ALL instances is far too small and MUST be modified to ensure the fuel flows freely from the surge tank back into the OEM fuel pump module. We've now developed a super flow profile -8AN fuel bulkhead fitting to address any potential issues part number BULKHEAD8AN. Simply cut a small 20mm hole in the OEM module and secure the bulkhead fitting.
