What size injectors are needed for a lsj turbo. I have 60lbers with a t3/t4 50 trim turbo. Its blow through maf with a vulcan intake manifold. I flow about 47lb/min maf if that helps any. On a recent log in hp tuners my idc's were well over 125%. I figured 60's where enough.

 

if your duty cycle is 125 its obviously not, time to bump up to 80s my friend

 

running 60#s also and it's plenty for me.

 

yea thats what i figured but i dont know if it could have something to do with the tune for the injector offsets or something cause i didnt set any of that up

 

then your not making enough power

 

i can do a burnout at 50mph, that's plenty

 

do you log your car any idea what your idc's are around or what your seeing across the maf. just trying to figure out if its the tune or am i really maxing out the injectors

 

mine are right at 80% wot in 4th @ 7000 i'll have to check the log files on the specific a/f, but i do know it was right near perfect

 

you need 80lbs atleast

 

well it looks like they didnt go much over 95% until my car decided it wanted to suddenly command 10.4 afr. so i need to find what table is causing it to command something other than 11.4 like its set up in pe

 

did i send you my tune? i sent it to a few people here, it seems to work pretty good on my car and it was built on another car, so it's pretty solid

you're more than welcome to it if you want

 

yea i have it. but i didnt want to flash it on to the car yet since i still dont have a wideband yet. so i'm just tweaking what i have cause i know the fuel side is safe right now

 

some people run 60's and a return style fuel system. Most people just go with 80's since you can still run a rsfs with those and get more potential out the turbo that way.

 

take it to a dyno and hook it up with a/f, pay the guy $50 or whatever for a couple of pulls and see which tune works best.

then you know what the car puts down + you can get log files with your hptuners and send them to someone here for tuning... get all that stuff done in one shot and there's no question on anything

 

yea maybe i'll do that we'll see what happens eventually i need to get a wideband so might just order one this week

 

well fixed the random rich spot when going wot. so thats taken care of but still at 115% idc. so looks like its time to step up to 80lb injectors