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Halo · 12-22-2005, 01:16 PM

There is no computer system (with either setup). There is an ESM that clamps the MAP sensor voltage so the OEM computer doesn't freak out when it sees boost and an aftermarket fuel pressure regulator that blasts the stock injectors with higher fuel pressure to provide more fuel when on boost. This is one of the reasons the SC kits have been so popular: Plug and play (pray?). There is no tuning involved such as you would need for an EMS.

That said, I still think it is worthwhile to run the car with a wideband on there and measure the A/F.

I'd be curious to see what kind of fuel system SOS runs for a total package price of $9 grand to be able to handle a 75 shot. Some people have reported on S2ki that the stock injectors are already >75% duty cycle at stock boost (~5 psi for Comptech with AC).

12-22-2005, 01:16 PM	#11 (permalink)
Halo Senior Member Join Date: Mar 2004 Posts: 598	There is no computer system (with either setup). There is an ESM that clamps the MAP sensor voltage so the OEM computer doesn't freak out when it sees boost and an aftermarket fuel pressure regulator that blasts the stock injectors with higher fuel pressure to provide more fuel when on boost. This is one of the reasons the SC kits have been so popular: Plug and play (pray?). There is no tuning involved such as you would need for an EMS. That said, I still think it is worthwhile to run the car with a wideband on there and measure the A/F. I'd be curious to see what kind of fuel system SOS runs for a total package price of $9 grand to be able to handle a 75 shot. Some people have reported on S2ki that the stock injectors are already >75% duty cycle at stock boost (~5 psi for Comptech with AC).