I have little or no knock (0-2) degrees when running the 1/8 or 1/4 mile. However, if I'm driving say around 40-60 mph and I hammer it, I get about 6 degress of knock. It's not false because I can hear it.
Blue Tops (now I know these are small but they are by no means at their limit. I'm only running 13:30's. I'll upgrade them when I'm in the mid to high 12's.
PTE 93 chip
15 lbs of boost
Thanks for your help.
I bought the car with the blue tops and stock turbo that was going out. The upgrade will be 50# injectors but I know my blue tops are good to mid to high 12's. I'm not maxing them out yet.
I know your saying you only run 13.30's but what is your mph? This would tell you what kind of power you are making thus relating to your injector size. I have the same turbo and it spools pretty quick. Most of the time I will be at full boost in street trim before I am WOT. My guess is that your lean. Your 52 flows alot more cfm at 15 then a stock turbo at 15. Just my $.02.
I have a 3500 stall AC nonlockup. I run alittle higher stall because of the cam but besides that I have been happy with it. It was a huge difference from stock. I used to run 12.7 @109 at 22-23 lbs with 110 oct. Now I can run the same mph with 17-18 lbs. The turbo seems to really come alive at 22+lbs but I don't have any track times to compare.