Hey I was wandering if anyone could help me. The problem is my car starts to bust up whenever i get on it. The setup is a Big 16g on a Stock 93 LS. Im running a SAFC2 to due my afc hack. With the settings at -40 hi/lo from 1000 to 7600. Still have yet to hook up my o2 sensor just wondering if this could be the main problem. Any help would be great
Can you be anymore specific when you say your car starts to " bust up"? Does the car stutter hard when you get into the high RPM range? How much boost are you running? What size injectors are you using? I’m gonna guess you’re running DSM 450’s since it’s a common use with an SAFC. Running -40% across the board really isn’t a great idea with no specific way of seeing your air/fuel especially in the upper range, you may be leaning it out. Do you have access to a wideband? Have you retarded the timing at all at the distributor?
It sounds like you’re having some sort of ignition issue based off your limited information that you’ve given. could be detonation or misfiring due to lean conditions or bad spark plugs. A typical response would be to get new plug wires and a set of NGK bkr7e’s gapped to .030 but honestly it’s hard to tell with what information we have on your car.
check plug gaps and the heat range, bkr7e work well on boosted honda’s run the gap somewhere between .023-.026 less gap the higher the boost