i have a 03 lb7 i need injectors and im thinkin about going 100hp over stock and i know im going to run into some trubbles in doing so. i plan on up gradeing my fuel system with a air dog and possablie a exturnal fuel pump now ive been told by some people that i will run in to my egts going through the roof unless i change the tubro is their another way around doing so for now untill i save up money to get one. also when i plan on doing the injectors im going to install head studs and head gaskets with the injectors and possable doing the air dog then or wating on getting my core charge back on the injectors then doing the air dog also i have been looking at injectors and im not sure of a good site to order them off of and will the upgraded injectors be able to handle a programer up to 215hp once all my other ducks are in a row in the event i cant find my way back to this post fell free to add me on face book brad ringeisen butler pa

 

100 overs are pretty large for the stock turbo. The stock injectors are more then enough to max out the stock turbo. I would suggest efi live tuning as you'll likely need to play with the throttle and idle some to make it smooth and driveable. If you really don't want to do a turbo upgrade yet you might be able to get away with a small shot of nitrous to keep the smoke down and keep the egt in check. Jest remember that you are venturing into the high HP arena and you will likely start breaking parts fast. Start saving up for upgraded internals as you will need them soon.

Another way around it would be to turn down the pulse width if the injection cycle so you are not pushing too much fuel.

 

i dont want to run stock injectors and i want to have room to play with them so when i do upgrade the turbo i dont need injectors to suport it and i thought about going with the 50hp injectors but when i had the programer on 50hp it didnt seam like that much of an upgrade in hp would i be better off with 75hp injectors and some web sites list them as hp and other list %over stock how would i compair the two

 

Complaining a 50hp tune and 50% over injectors is like the apple orange thing. Personally I think 50 Overs would be a good start and would be easer to tune so the engine runs right. Remember a 50 hp tune is usually only on the top end but larger injectors will inject extra fuel across the board. This includes idle and light throttle areas. This could make it idle rough and hard to drive slowly like in a parking lot. With 50 overs, a turbo and some good tuning you can push more then 600hp and easely brake internal hard parts. 100 overs are for the guys that are building up their bottom end and want to push the high hp.

get yourself a good custem tune and ditch the canned tuners and then see if you think you still need 100 overs.