trinitom Posted March 5, 2010 Share Posted March 5, 2010 just found this on the web. nice idea on the turbo. Cosworth XB Series Two: Fuel Control: The fuel control used on the XB is the same as used on the HB. The XB uses sixteen primary Bosch Motorsport injectors, two per cylinder, and four side feed Bosch injectors arranged in a ring, called the PCI, at the turbo compressor inlet. The sixteen primary injectors are driven directly by the ECU while the PCI injectors are driven by the ECU through a separate PCI amplifier. Note: the PCI injectors were changed from the early XBs to the later XBs, XD, XF, and XFE. See the note on PCI Injectors for an explanation. Fuel rail pressure is 8 Bar or approximately 120 psi! Atomization at this pressure is a sight to behold. The compressor inlet injectors serve to cool the incoming mixture as it is compressed. Fuel is supplied by a mechanical fuel pump located in the fuel cell. The pump is driven directly from the XB's right side scavenge pumps by a couple of inch long square drive quill. The fuel system must be purged of corrosive methanol after each use. This is done by disconnecting the feed from the fuel cell and looping the pressure side back to the return. The engine supply and return is then connected to a separate "pickle" tank that supplies gasoline under pressure and provides a dump can for returning methanol from the engine's fuel rail. The ECU can be programmed with a pickle map that fires the PCI injectors at low rpm while leaning the mixture significantly from that required running methanol. In practice, I use a separate ECU programmed with the pickle map. The XD fuel control has a nice feature in that the Pickle Map can be configured to be one of the settings on the steering wheel mixture control. WTF http://img97.imageshack.us/img97/6908/pciw.jpg all info can be found here Quote Link to comment Share on other sites More sharing options...
MattP Posted March 5, 2010 Share Posted March 5, 2010 an interesting pic to say the least Quote Link to comment Share on other sites More sharing options...
Thorin Posted March 5, 2010 Share Posted March 5, 2010 You planning on putting one in a Supra? Quote Link to comment Share on other sites More sharing options...
trinitom Posted March 5, 2010 Author Share Posted March 5, 2010 You planning on putting one in a Supra? no, and even if i wanted i'm sure it wont be cheap or possible at all! Quote Link to comment Share on other sites More sharing options...
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