i just got my new built bottom end...ls motor...weisco pistons (9 flat cr) and eagle rods...first of all, is piston slap common on weisco pistons? cus my motor and 2 other motors at the same shop have piston slap...its an annoying noise and it makes me worry, but it goes away when the motor is warm,sometimes its a faint noise when the motor is warm...2nd of all...what should i set my btm msd dial to on 5psi while i break my bottom end in...also i have aem wideband guage which thanks to god if i didnt have id probably would've blown motor by now...currently im using a vafc to do the fuel for my turbo...so far 8% throttle and under its lean as hell at 15.5 and higher...then 9%-44% throttle its rich...id say 11.7-12.5...but as i start to do WOT...it leans out past 16...i dont understand whats going on b/c ive set on my vafc...all rpm range to dump fuel...i have it on 9 at 1k and go up 1 per thousand rpm...now what im trying to figure out is...why is it leaning out when i do 45% throttle and higher...not sure if it matters but i havent gone over 4krpm b/c of break in...do i need a fuel rail? bigger injectors? or what size injectors should i be running? what kind of fuel pressure should i have? or is there a setting on the vafc that i can tune the fuel dump to a certain throttle percentage? and for future reference...i want to run 12psi for daily driver...what kind of computer should i get and is it safe on a stock head for that kinda boost? and my wastegate opens up at just under 4krpm's, is that normal? does that leak boost? ive heard that these turbonetics deltagate's leak boost....getting a tial would be my best bet...havent had any disagreements on that subject so thats one future plan...also i have a blitz blow off valve...im wanting to put the hks ssq...any pro's or cons on that? please help, i need to know as much as possible b/c i cant afford to blow this motor...my main goal is to have a safe setup but at the same time i want a fair amount of hp

 

bump, cuz I have no ******* clue, and it looks like you need help