well i finally got my turbo setup all finished today but im far from done. ive searched and searched and cant seem to figure everything out. ok so when i first started the car it wouldnt idle for crap and vacuum was at 10...prutty low. so i checked all my vacuum fixed the mess of vacuum lines i had and got the vacuum up to like 20 which seems about right. i played around with the idle screw a little bit and finally got the car to idle however the car still bogs out if i rev up the motor or drive it. 1st and 2nd just bog out bad but third and fourth i can get through it not smoothly but it goes and i was able to hit 3 lbs of boost. now im thinking the problem can either still be with all the vacuum and hoses, the maf, or the o2 sensor. heres what ive done with everything.
1) the iacv hose i have routed right into the cold pipe right before the the tb
2) as for the maf...my power steering pump creates space problems for my intake off the turbo so all i could fit was 2 inch piping to the maf so im wondering if thats maybe effecting the readings of the maf that its going from its 2 1/2 diameter to 2" then to the turbo, i dunno.
3)now on the original ka intake theres 3 hoses that go into it, the iacv hose which i mentioned, the smaller of the 3 hoses which just comes off a vacuum line(i just removed the T and eliminated it, do i need that?) and the hose coming off the vavle cover, which i just have a hose on it open on the other end toward the ground. where is the best palce for all these lines maybe thats effecting me?
4) im also venting my bov to atmosphere
5) my maf also is just running with a screen over it cuz i couldnt fit a fliter on it, do you think that could effect anything??
at this point im so overwhelmed with all this thinking i been thinking about all kinds of stuff and getting nothing out of it. my setup is a kkk k27 turbo, bov vented to air, fmic, walbro 255, vortech 12:1 fmu and deltagate wastegate with 5lb spring

this is my first turbo project so any input would help a lot thanks in advance

 

An exhaust leak could cause the same problem. Or a leak in the air intake somewhere.

 

it was the maf...its just too sensitive i guess without a filter on it...put a filter over it cars runs fine