Here we will keep you up to date with interesting customer projects and their racing exploits (as well as our own) and any interesting links, pics and videos.


 Never Party without Protection

 

 Pressure sensor

 The pressure sensor in the picture above is cheap insurance for your expensive race/performance engine.

 

AVR Performance can set these up as fuel pressure and/or oil pressure inputs into your Life Racing or Motec hundred series ECUs and then configure an intelligent protection limit if the fuel pressure or oil pressure fall to dangerous levels.

 

 

 Fuel_press_cut_copy

 The data logging in the picture above shows how this system saved our race engines bacon at a track test day. For the warm up lap the fuel pressure behaved as it should have. However fuel pump inlet strainers & fuel filters were blocked severely reducing the fuel pumps flow capacity. The first time full throttle was applied & boost came in the fuel pressure fell over. You can see from the traces the moment this happened the ignition cut came in and prevented the engine from otherwise inevitable damage. Even though the alarm light came on & a warning message was displayed on the dash the driver (who is a bit slow) attempted full throttle a second time with the same result before deciding to head into the pits to check out the problem. The problem was corrected and away the car went again. So a happy ending to what would have been tears at bedtime.

Call AVR Performance to discuss this valuable insurance for your car.

Riley’s RX7 FD3 Bridgeport turbo update

  P1000757c_copy

  

The 13B REW full bridgeport fitted to the car along with the Garret T04Z turbo. The next phase is the V-mount radiator & intercooler system.

 

 

 

 

 

Exedy twin plate

 The Exedy  twin plate clutch & flywheel kit while heavy at around 3x the weight of the AP twin plate clutch/flywheel in the AVR RX7 racecar does  offer robust durability – where as the AP unit in the racecar tends to warp its plates if slipped & abused.

 

 

 To cover the fuel requirements (and future proof for more power at a latter stage) the entire fuel system has been fully revamped. ID2000cc secondary injectors & ID1000cc have been fitted up front along with the appropriate fuel rails along with AN fittings/braided hose for bling & safety. Twin fuel lines with twin fuel filters have been run under the car.

Fuel pumps 

For the fuel pumps twin Siemens 315 L/hr pumps have been fitted up inside the Standard RX7 fuel tank. The flow capacity of each of these pumps almost matches the benchmark Bosch 044 pumps commonly used, however the Siemens units are considerably more compact than the 044 making the act of fitting 2 of these in an OEM fuel tank much easier.

 

The other aspect of the fuel pump upgrade was getting the appropriately sized power & ground wires into the tank to power the twin pumps. This was overcome with a 4-pin through tank hermetically sealed connector kit (these are the wires you can see exiting the top of the pump assembly in the picture). This left the standard connector to run the fuel level sender.

 

The other bonus with the Siemens pumps is at $230 each they are quite a bit cheaper than the 044's. Feel free to call AVR Performance order the Siemens 315L/hr (at 3bar) fuel pumps and/or the 4-way through tank power connector.

 

Rileys RX7 FD3 Series-7 Full Bridgeport project

Rileys Series-7 RX7 FD3 street car started of with the standard13BREW twin turbo engine. With 100 000km on the clock the engine was still running fine but he decided to have the engine torn down for a freshen up. At this point things started to get carried away with plans of a full bridgeport & single turbo conversion.

A Garret T04Z turbo has been selected and the engine has recieved a stud kit along with all of the other reliability mods for the level of power anticiapated. A V-mount intercooler/radiator setup, full fuel system upgrade and 60mm Tial wastegate are all to be fitted to achieve Rileys aims.

Ready for porting

 

 

 

 

 

 

 

 

End plates with the bidgeport slots freshly machined ready for porting.

 

Riley_engine_assembly_montage

 

 

 

 

 

 

 

 

 Assembly of the Full bridgeport 13BREW

 

 

 

 

riley_engine

 

 

 

 

 

 

 

 

 

 

 

 

The finished product.

 

Engine_bay_cleaned_up

Empty engine bay cleaned up & waiting patiently

 

 

 

 

Video showing testing of the Paddle shift gear system at Ruapuna

 

More Articles...