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what injectors for mild b20 build

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Old Feb 14, 2010 | 02:03 PM
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negusjuda's Avatar
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Default what injectors for mild b20 build

hey i just want to know what size injectors and fuel pump do i need for my set up. and also since i have obd0 clips what brand injectors can i get that plug right in without modifications.this is in a 91 da integra hence why i have obd0 injector clips. my set up is as follows:

slightly ported gsr head
skunk2 tuner stage 1 cams
megan racing 4-2-1 header basic shelf header not 2.5 in collector
skunk2 intake mani
edlebrock 65mm tb
short ram intake with vstack and filter setup
tanabe 2.36in exhaust
stock cat
eagle rods
84mm 10.5:1 comp pistons with my head decked .010 my compression is around 11:1
basic 3 angle valve job
also what kind of power am i looking at
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Old Feb 16, 2010 | 02:50 AM
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Default Re: what injectors for mild b20 build

bump
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Old Feb 16, 2010 | 08:09 AM
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Default Re: what injectors for mild b20 build

Originally Posted by negusjuda
hey i just want to know what size injectors and fuel pump do i need for my set up. and also since i have obd0 clips what brand injectors can i get that plug right in without modifications.this is in a 91 da integra hence why i have obd0 injector clips. my set up is as follows:

slightly ported gsr head
skunk2 tuner stage 1 cams
megan racing 4-2-1 header basic shelf header not 2.5 in collector
skunk2 intake mani
edlebrock 65mm tb
short ram intake with vstack and filter setup
tanabe 2.36in exhaust
stock cat
eagle rods
84mm 10.5:1 comp pistons with my head decked .010 my compression is around 11:1
basic 3 angle valve job
also what kind of power am i looking at
Let the dyno tell you what power ure engine is going to put out or look in the all motor dyno tread and find a set up close to ures and se what it put out.
For injectors. In my b20v ill be running OEM RDX 410cc injectors (for the 12:1-12:5 CR that ill be running) wich are about 40$ a pop. have really good fuel atomization. But they require some adidtional stuff. Do some reserch on them. For fuel pump. You can use an intank walbro 255 or an 190. Ill let the guys with more knowledge chime in.
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Old Feb 16, 2010 | 08:45 AM
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Default Re: what injectors for mild b20 build

pump - 190L/h will be fine, the 255L/h c an overwhelm a stock FPR.
injectors - the RDX injectors can't be beat.
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Old Feb 16, 2010 | 11:10 AM
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Default Re: what injectors for mild b20 build

Originally Posted by Relic1
pump - 190L/h will be fine, the 255L/h c an overwhelm a stock FPR.
injectors - the RDX injectors can't be beat.
Thats new. Can some one chime in on that. Reason why im asking is. I will be running an 255 walbro on an itr FPR or maybe even an adjustable one.
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Old Feb 16, 2010 | 02:46 PM
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Default Re: what injectors for mild b20 build

I've seen it more than once, when at idle the fuel pressure surges (or simply stays high)with the larger pump. Install an aftermarket regulator or a smaller pump and the problem goes away.
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Old Feb 16, 2010 | 03:44 PM
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Default Re: what injectors for mild b20 build

very true, the 255lph pump is usually overkill on most setups and it kills the stock regulator, it also heats the fuel alot due to it circulating through the return line so often because the engine doesn't use the excess fuel volume/pressure.
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Old Feb 16, 2010 | 04:55 PM
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Default Re: what injectors for mild b20 build

I would still run the 255 w/ the adjustable regulator. Why? you alsways have room to grow and wont have to worry about anything later on in the future. I am a turbo guy so i have used them on all my builds with no problems on the stock FPR. its like a 20 dollar difference and you wont ever have to worry about it again, just my .02.
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Old Feb 16, 2010 | 06:49 PM
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Default Re: what injectors for mild b20 build

Originally Posted by Relic1
I've seen it more than once, when at idle the fuel pressure surges (or simply stays high)with the larger pump. Install an aftermarket regulator or a smaller pump and the problem goes away.
Ok so for my 12:1-12:5 CR with 410CC RDX injectors, stage 2 skunk 2 cams. An walbro 190l/h is going to be enought....? What if i am planing on running E85 down the road. Im shure ill need the 255l/h for that. Butt e85 gets really shitty gas millege. Car will be a DD.
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Old Feb 16, 2010 | 10:32 PM
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Default Re: what injectors for mild b20 build

i was thinking h22a 345cc injectors since im only running 11:1 compression and tuner stage 1 cams which are basically a slight more agressive then ctr cam also this is going in a 91 da so i need peak and hold injectors which is why i was going with the h22 injectors and were you get rdx injectors for 40 bucks a piece heck h22 injectors are like 100 a piece new
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Old Feb 17, 2010 | 10:37 AM
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Default Re: what injectors for mild b20 build

GSR pump
dsm 450cc

cheapest route u can go!!!!!
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Old Feb 17, 2010 | 11:18 AM
  #12  
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Default Re: what injectors for mild b20 build

Originally Posted by igorka_91
Ok so for my 12:1-12:5 CR with 410CC RDX injectors, stage 2 skunk 2 cams. An walbro 190l/h is going to be enought....? What if i am planing on running E85 down the road. Im shure ill need the 255l/h for that. Butt e85 gets really shitty gas millege. Car will be a DD.
the 190L/h should be enough to keep up with those plans.
stock pump is around half that.
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Old Feb 17, 2010 | 12:41 PM
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Default Re: what injectors for mild b20 build

i actually have dsm injectors but i dont have the clips and also the pintile caps need to be replaced
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Old Feb 17, 2010 | 12:43 PM
  #14  
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Default Re: what injectors for mild b20 build

is there a way to maybe modify the injector or honda clips to fit on the dsm injectors i think i read some where that you have to cut the lil nipple thing on the dsm injector for the honda clips to fit on the dsm injector
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Old Feb 17, 2010 | 09:34 PM
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Default Re: what injectors for mild b20 build

Originally Posted by Relic1
the 190L/h should be enough to keep up with those plans.
stock pump is around half that.
Nah il still invest in an 255l/h with an adjustable FPR.
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