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are very similar to the stuff from Snow. Engineers/designers moved from one company to the other, some bad blood as well. I use boost referenced variable controllers in both my Z and my subaru. It's since been explained to me that MAF based controllers will offer a little more control on a fast spooling turbo application and 2D controllers using MAF and injector duty cycles go even further. However, my Subaru is my daily driver and up until last year, my track car as well. The boost based controller does great on the street and the track. My gas mileage is good and I see no point in changing my set-ups at this time. On the Subaru, I start spraying at 8psi,just above the wastgate spring level, and go full spray at 15psi. That turbo peaks at 22psi and spools very quickly so the time from 8psi to 15psi under WOT is almost a moot point. For the Z, I have dual nozzles, one in each pipe just before the throttle bodies, safe injection, fluid level indicator, and the boost variable controller. The new pumps are a better design than the previous Shureflo models, higher psi too. My safe injection is tied into a relay that cuts the pump when a trigger is thrown, which also cuts power to my boost control solenoid. The new safe injection piece from Labonte can also interface with a flow indicating gauge, which is a feature I wish I had. I might upgrade that over the winter. Hope that helps.
"Too dumb for opera, too smart for NASCAR." |
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