Trying to figure out injectors

[gingerbredman]

alright, so in the near future when i'm ka-t i'm looking for 300whp give or take a few, because i can probably free up enough horses somewhere else to hit the 300whp mark.. I'm planning on injectors, fp, ecu tune for fuel/ign. management.

problem is, i'm using the Deatschwerks calculator to figure out what size injectors i need to run, the thing that's messing me up is the "brake specific fuel consumption" deal.. it says for a turbocharged engine to put either .5 or .6, but leaving all other numbers the same and changing the BSFC results in HUGE difference.. See

Target HP 300# of inj. 4BSFC .5duty cycle 80%

req. inj. flow rate. 490cc (at 83% duty, inj are at 468cc's)

Target HP 300# of inj. 4BSFC .6duty cycle 80%

req. inj. flow rate. 590cc

not trying to be lazy, i just don't really have the time to get on the comp as much as i used to

leave me something for tomorrow

[lrb_2000]

550cc should get you to 300hp..

I run 810cc daily and get great mpg's. I got over 32mpg on a 800 mile trip.. it's all about the tune.. But you shouldn't go with less than 550cc for 300hp.

[DevilMB3017]

Get the biggest ones you can afford and your tuner can tune for.

You always want the ability to crank up the horsepower

[gingerbredman]

Cool beans, thanx yall

Yeah I'm thinking 12psi max on this t3/t4 offbrand turbo I've got, I'm kinda leery about pushing more. It has no play, but still ha ha

Well thanks again guys, much appreciated

[480sx]

If its an off brand(Chinese usually) turbo run an oil restrictor. I ran one without one and it lasted 3 WoT runs.

[gingerbredman]

Geewhiz man I hate that for ya

Yeah, luckily the guy boosted his ka to death before the turbo, he did everything except the fuel system

I still swear at him to this day for doing it lol.. damn he still owes me a title for the se hatch I just remembered! time to go get it!!

lol jk, i'm not going to shoot him if he doesn't give it