Re: Alky install
I finally got my Razor alky setup running a few days ago. Had it all plumbed up months ago, but never got around to using it. Been messing with it for the past few days and playing with the adjustments. One thing you learn quickly with these alky injection systems is that "too much" alky is not a good thing. You'll know right away if you're spraying too much if the motor sputters or bogs when you get on it. The WBO2 will show you how much richer the alky is making your AFR. The adjustments on the Razor system are definitely more sensitive than the old SMC setup I had. Right now, the Sy is running so well on 91 without alky that I haven't found a need to turn on the spray. I've got basically no knock below 15psi so I'm going to adjust the spray to come on at higher boost levels - less expensive that way for a daily driver.
From experience, the alky injection won't cure part-throttle knock situations, but over a long WOT pull, your IA temps will come WAY down and KR should be very low or nonexistent. For example, when I had the stock turbo/wastegate, I would get up to 8 degrees KR, even at part throttle acceleration. After I put the SMC kit on, I would still knock right when stabbing the gas, but after a few seconds of WOT, I could just watch the IA temps drop and the KR settle to ~1 degree in Datamaster and stay there. The stuff definitely works :tup:
I also situated the nozzle in the bottom of the RPM A2A pipe with the M15 nozzle pointed up. This makes for a clean install with the nozzle out of sight, plus you won't have alky dribbling down out of the line after you quit spraying. My only complaint about the system would have to be the low-alky sending unit is too sensitive and flickers with the tank less than 1/2 full. I ended up just disconnecting the low-alky LED altogether. Another issue I had was the turn-on/spray active LED was dimly lit with the system armed and not spraying no matter what I did with the adjustments. Don sent me a resistor to put between the PAC grey wire and ground and that solved the problem.
One more thing - when I pulled my upper and lower intakes off at 71K original miles, the plenum and runners were spotless. I mean, there was absolutely no carbon buildup, varnish, or anything in there. The alky will wash all that stuff off your intake tract...another plus.