Soo i am building my d16 zc. i am putting in tuner toys rods, and fjt's bottem end kit that is for sale on turbod16. i am still debating on what sixe injectors to go..im thinking percision 1000's. also im puttin in a t04e turbo off of ebay tuned on zdyne. but my question is should i upgrade the fuel pump and if soo what should i go with. just thought i would ask everyones oppinion. let me know what u think


Modified by boosted91REX-SI at 7:00 PM 10/15/2007

 

1000ccs are way way way way overkill for anything that has the letter D in it.

Pull back your injector sizing, and yes upgrade your fuel pump, walbro or the like.

 

thanks for the advice i just figured if i went that big with injectors i probably wouldnt have to buy any bigger ones when i go bigger...

but what is every one else running...fuel pump wise???any help is appreciated

 

every build ive seen has been runnin a Walbro 255 lph id say ud be safe with that and i agree with the first guy 1000 is WAY too big cut that back and run the Walbro and u should be go to go good luck

 

im running a 255 in my 00 si i got a precision t4 6076 w/s cover bb turbo stock bottom built head with ctr's and 750 rc injectors on 52 fuel psi on a aem ems. on 7.5-8 psi im only at about 45% duty cycle at full boost. so i have more then enough fuel with this setup.

 

you would have probably benefited from running a smaller injector at a higher duty cycle from what i've seen. I plan on running 580-640cc injectors with an LS-T pushing 12 lbs.

 

i had smaller injectors 440's but ran into 85% duty cycle at 11 psi of boost on cooler days, so i ran it for a while like that then turned down the boost too save my motor and bought the 750's so i can put in my built bottom end, turn up the boost and not have to worry. if you can figure out of your whp goal or range you want to be at, picking your fuel setup is not that hard. mine will max at around 450 to 500 at the wheels depending on my fuel psi, and injector duty cycle. i like to stay around 80-85%.

 

Yes, if you mod you car then you must upgrade fuel system. Duh?

 

actually if u wanna be a smartass...i already modded my car...if ya wanna no im runnin a t25 on 12psi..and the stock fuel pump is workin just fine...soo basically i was askin what fuel pump alot of ppl are running...thanks for the useless information though