Hey guys, i have a few questions on my n2o setup. I'm going to be running a fully built and sleeved b20/vtec motor. Its going to have around 12.3:1 c/r. Now i'm planning on putting a 175 direct port shot on it. I'm not really sure how extensive of a fuel system I am going to need? I was planning on going w/ a 255 intank pump, a aeromotive reg., and 450cc injectors. do you think this will be sufficient? Also the car is going to be my daily, so do you think this setup will last while running 93 octane. And it will be fully tuned on hondata s200. please put any info. you think will help, as i am kinda new to the big shot setup. I know how to handle smaller shots, but nothing quite like this. Thanx for any info. you can share and any suggestions you may have.

 

i would look into gettng a helper pump for the spray

 

here's the setup so you know what I'm working with:
b20 block w/ 85mm golden eagle sleeves
eagle h-beam rods
cp pistons 12:1
balanced crank
cometic 0.040 h/g
block girdle
b16 head port and polished
skunk2 stage2 cams
skunk2 valves, gears, retainers, and dual springs
rmf narrow header
aebs intake mani.
450cc inj.
arp rod and head bolts
aem fuel rail
f/p reg.
68mm throttle body
hondata i/m gasket
fluidamper pulley kit



Modified by poorboy44 at 8:52 PM 2/13/2006

 

ttt need some help here guys. dont wanna have to build 2 motors

 

PM cubish or 1700anddroping, They both know what u need...

 

Read this!!!

https://honda-tech.com/zerothread?id=1460144

Ask questions if they are not already answerd but 175 shot on 93 octane on 12.3:1 compression is pretty much a no no

 

i went to cp's website and found some 11.5:1 pistons that i will be going with instead.

 

walboro 255 pump will supply enough fuel for what your goals are
450 injectors are good for your all-motor supply.

also skunk2 cams are not nearly as strong as Honda OEM castings. On a large shot of nitrous i would be worried about breaking them. would seriously look into ITR/CTR cams, not only for the strength but for the longetivity.

 

those b20 sleeves are weak with all that cylinder pressure i would feel that being the weakest link

 

thats why i'm having it sleeved, like posted above. As far as the cams go, thanx for the info. I'm definitly going to be doing some research on that issue

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda_Tengoku &raquo;</TD></TR><TR><TD CLASS="quote">walboro 255 pump will supply enough fuel for what your goals are 450 injectors are good for your all-motor supply</TD></TR></TABLE>


yes a 255 will supply,but not hold constant pressure.you will need a 2nd pump to do it right.


as far as b20 sleeves go.i welded a block guard in and have spraid 400 w/a stock
97 gsr computer and that motor is still running today.

 

what if i just run one aeromitve 700hp+ fuel pump. i mean if its not gonna work thats fine but i was just trying to see so i dont have to spend the money on two pumps

 

and for the sleeves, the block has damage so i have no choice but to get it sleeved. and w/ ge's m.i.d. sleeves it should be plenty capable of handling that

 

well on my deck plated set up i run a sx1k hp pump w/a 10an s/s
braided line to the rail.i use a 255 in stock location and use stock lines for the
nitrous set up.i t both returns together and i'm done.


if it were me...i would do it like this,so each one can be tuned seperately.
i will be running the new neptune.but all it is going to do is the motor set up.
i will tune the nitrous,because i know what works and what doesn't plus it is fun as hell when i am under pressure...hahahaha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poorboy44 &raquo;</TD></TR><TR><TD CLASS="quote">and for the sleeves, the block has damage so i have no choice but to get it sleeved. and w/ ge's m.i.d. sleeves it should be plenty capable of handling that</TD></TR></TABLE>


i said that about the sleeves because some one said they are weak.truth is
anything is weak w/o reinforcement.

 

awesome man, I'm definitly going to look into the duel pump setups some more.

1700: Have you ever heard anything about the s2s2 cams being weak and being damaged under spray

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poorboy44 &raquo;</TD></TR><TR><TD CLASS="quote">awesome man, I'm definitly going to look into the duel pump setups some more.</TD></TR></TABLE>

IT IS THE RIGHT WAY TO GO...TRUST ME.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">1700: Have you ever heard anything about the s2s2 cams being weak and being damaged under spray</TD></TR></TABLE>


really couldn't tell you about the cams,i run type s cams w/a hump in there back.

 

one other question. do you have both pumps on at all times or do you have one of them hooked up to your arming switch. if so which one do you run for the motor and which one on a switch

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poorboy44 &raquo;</TD></TR><TR><TD CLASS="quote">one other question. do you have both pumps on at all times or do you have one of them hooked up to your arming switch. if so which one do you run for the motor and which one on a switch</TD></TR></TABLE>


they are on at all times...both are regulated at the fuel pressure required.
you will love it this way....

 

what do you mean both are regulated? are you running two seperate lines and two seperate regulators?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poorboy44 &raquo;</TD></TR><TR><TD CLASS="quote">what do you mean both are regulated? are you running two seperate lines and two seperate regulators?</TD></TR></TABLE>


that is correct....you can not regulate 2 different pressures on the same line.

 

so basically:
line #1&gt;pump&gt;filter&gt;regulator@40psi&gt;fuel solinoid.
line#2&gt;pump#2&gt;filter#2&gt;reg.#2&gt;fuel rail

then have the return lines from both reg. y into one return line to the tank

p.s. sorry for so many ?'s but this isnt something i wanna do wrong and destroy my motor

 

think more like this

back into tank------- AN-Line-return-------
.................................................. ....... /
.................................................. ......./
.T...pump1......................................re gulator/rail
.A........----\..........AN Line to rail.........../
.N..............==================/
.K........----/
......pump2


2 lines into 1, then to the rail

1 regulator for both and a larger return than stock should work just fine


sorry but ignore the ...... they are just so the forum doesnt get rid of my spacing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poorboy44 &raquo;</TD></TR><TR><TD CLASS="quote">so basically:
line #1&gt;pump&gt;filter&gt;regulator@40psi&gt;fuel solinoid.
line#2&gt;pump#2&gt;filter#2&gt;reg.#2&gt;fuel rail</TD></TR></TABLE>

THE 40 IS A REFERENCE POINT....but start out at,at least 40 CONSTANT.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">then have the return lines from both reg. y into one return line to the tank</TD></TR></TABLE>

YOU HAVE THE IDEA AND LISTEN VERY VERY WELL.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">p.s. sorry for so many ?'s but this isnt something i wanna do wrong and destroy my motor</TD></TR></TABLE>


that is why i am here to help so that does not happen.

 

what would you suggest i start out at for the base fuel pressure for the fuel solinoid?