Injector size?
07-24-2006, 08:35 PM
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Injector size?
i am just about to be done with my B18c1 turbo build- i am running T3T4 6-8psi- i have aftermarket fuel rail and B@M adjustable fuel pressure regulator- currently stock fuel pump and filter- any suggestions on Injector size i should use, and safe fuel pressure to start with?
07-25-2006, 07:07 PM
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Re: Injector size? (mtber)
just dont want to run lean- would rather run a little fat- to be on the safe side- it is for a everyday street car that has a lot of get up an go- i was either leaning toward the 440/or 450 dsms or 750 RC
07-25-2006, 07:16 PM
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Re: Injector size? (j-D-m)
unless you plan on doing internals, 550's would be great. loose the b&m reg and go with a stocker. it never reads correctly, and all the ones i have put on, i have taken off because they dont work.
basically if you dont plan on growing, 550's but if you want room to grow, look at 750's.
basically if you dont plan on growing, 550's but if you want room to grow, look at 750's.
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07-26-2006, 04:29 PM
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Re: Injector size? (mtber)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtber »</TD></TR><TR><TD CLASS="quote">This all depends on your whp goals 
</TD></TR></TABLE>
psi doesnt really matter, different turbos make different power. the 440's are only gonna get you to about 300whp. you mentioned you have some internals done. i would say 550's for about 350whp or you might as well grab some 750's so you have room to grow. why do you only wanna run 8psi on a built motor anyways?
EDIT: also, what are you gonna be using to control them. most of today's ems systems have no problem idling 1000cc injectors so you shouldnt have a problem whatever size you choose.
</TD></TR></TABLE>psi doesnt really matter, different turbos make different power. the 440's are only gonna get you to about 300whp. you mentioned you have some internals done. i would say 550's for about 350whp or you might as well grab some 750's so you have room to grow. why do you only wanna run 8psi on a built motor anyways?
EDIT: also, what are you gonna be using to control them. most of today's ems systems have no problem idling 1000cc injectors so you shouldnt have a problem whatever size you choose.
07-26-2006, 06:34 PM
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Re: Injector size? (22psicrx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 22psicrx »</TD></TR><TR><TD CLASS="quote">get rc 750. reliable, good start up and if you want to make more hp you already have the injectors.</TD></TR></TABLE>
07-26-2006, 07:44 PM
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Re: (Schister66)
cause i dont want to blow **** up-i know my rods crank and pistons can handle what ever i throw at em, its the sleeves i am worried about- i only have a 8psi spring- i may be getting a 12psi- depending on how the 8lbs feels. i think i am going to go with the 750's - its just hard to choose right now cause i dont know exactly hopw much HP to expect to calculate what size injectors i should use- but i keep doing the equations and i think i need something more like 750s
07-26-2006, 09:08 PM
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Re: Injector size? (j-D-m)
you should get some 550 to 750 injectors. (they can tuned them so you wont get too much fuel) you should also get a 255 walbro fuel pump and put the stock fuel pressure regulator on it and you will be good to go after you get it tuned
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