Snail Tuning

ok i have a 1991 crx si. im planing on building a multiport dry nitrous kit. eventually i will drop in a rebuild motor with cam, ls rods, and the cng 21mm wrist pin pistons. but thats later.

i plan to spray this summer as i aquired a used zex kit on a trade. so now for my basic setup and questions.

Basic Engine Setup
d16a6 stock block
d16z6 head
y8 intake manifold, or cheap aftermarket manifold.
ls or gsr throttle body
dc sports header
2.5" exhaust from header back
8.5lbs flywheel and stage 2 clutch

Nitrous Plan
my plan for the nitrouse setup. multiport taped in on the top of the runners on a y8 manifold, or possibly an aftermarket obx, or edelbrock. 1-2" from injectors aimed at injector spray to help mix fuel and nitrous. i was going to run itbs, but i think my funds will run short. i was also wandering if i could put a jet upstream after the solenoid but before i split off to the multiport this would alow me to run a larger diamiter jet but a smaller hp shot. my goal is to make power from the all-motor setup and just have the nitrous as a nice boost in late 2nd and 3rd. so i will be trying to stay between a 40-80shot tops. my other main goal is to use the nitrous to cool the engine not make huge power. ill be running dsm 310 or 450cc injectros and use uberdata to control nitrous activation, fuel, and ignition. by using uberdata im eliminating the need for the wet kit. making the install much cleaner and easyer. and much more reliable as i can completly control fuel. i don't want to have a quick spert of power. im hoping this setup wil give me a solid 40-80hp in a wide powerband, be reliable and allow the bottle to last a long time.

Questions
dry multiport is not as common as wet multi port. why?

can i use the standard dry nozzel or do i have to run the wet nozzel to get the correct spray pattern?

can i run a jet upstream and use only 1 jet instead of 4. alowing me to run a larger diamiter jet but keep the hp level down. decreasing the chance of a clog? (all 4 tubes would be same length and diamiter, and same amout of bends to alow nitrouse to hit each cylinder eaqual.

does the fuel or nitrouse jet typicly clog when the jet size is small?

do they make 10-20hp jets and will they clog?

if i have to run a wet nozzel for the multiport could i run a 2 stage and run both sides of the wet nozzel dry? one stage for street and both stages for the track?

will dsm 310 injectors be enough or do i need to run the 450cc?

im a turbo guy so im very new to nitrous so please no flaming

Garage 808 Hatch

dry is not as common as wet, because wet is better. where the hell did you get a dry multiport?

for your power, id just get a wet single fogger. i used to run dry kits, got a wet kit, and will NEVER go back. they are better because you only have to change the timning when you want more, no need to retune for more fuel etc.

Snail Tuning

i have a zietronix wideband, and a laptop deticated for tuning. so retuning is not a problem, and id rather have my fuel control by the ecu not be a jet. my plan is to start spraying around 3500-4000rpm and start out with a small shot. im not looking for big gains, just very reliable and long lasting power. by using uberdata i can adjust fuel and ignition and plan on running 310-450cc injectors. so the wet kit is not nessasary for my setup as i have complete fuel and ignition control.

in theory if i aim the nitrous spray into the injector spray pattern won't i have a wet kit anyways? because i will have added fuel comming from the injector.

just curiouse if anyone has done this type of setup, or if it sounds reliable and safe.




Modified by Snail Tuning at 10:44 PM 4/15/2007

OMG B16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Snail Tuning &raquo;</TD></TR><TR><TD CLASS="quote">i have a zietronix wideband, and a laptop deticated for tuning. so retuning is not a problem, and id rather have my fuel control by the ecu not be a jet. my plan is to start spraying around 3500-4000rpm and start out with a small shot. im not looking for big gains, just very reliable and long lasting power. by using uberdata i can adjust fuel and ignition and plan on running 310-450cc injectors. so the wet kit is not nessasary for my setup as i have complete fuel and ignition control.

in theory if i aim the nitrous spray into the injector spray pattern won't i have a wet kit anyways? because i will have added fuel comming from the injector.

just curiouse if anyone has done this type of setup, or if it sounds reliable and safe.


Modified by Snail Tuning at 10:44 PM 4/15/2007</TD></TR></TABLE>

That will work, i'd go with 440cc's at least. BUT i dont think uberdata has nitrous controls, like a switch to n/a and nitrous fuel/timing maps. Its one or the other.

R@mon

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Garage 808 Hatch &raquo;</TD></TR><TR><TD CLASS="quote">dry is not as common as wet, because wet is better. where the hell did you get a dry multiport?

for your power, id just get a wet single fogger. i used to run dry kits, got a wet kit, and will NEVER go back. they are better because you only have to change the timning when you want more, no need to retune for more fuel etc. </TD></TR></TABLE>


what? lol


do the dry setup, if uberdata can control it youll have the best of both worlds. full control of the fuel map so you wont be lean on the low end and rich on top (for example) plus no fuel solenoid to get stuck closed .

this was my old setup. kpro and 550cc's injectors controlled the fuel

tokesGTR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Garage 808 Hatch &raquo;</TD></TR><TR><TD CLASS="quote">dry is not as common as wet, because wet is better. where the hell did you get a dry multiport? </TD></TR></TABLE>

Not true. When you have something like Hondata's nitrous control where it can automatically adjust the mixture it is far easier to tune than messing with jet sizes to get the A/F ratio correct

Snail Tuning

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OMG B16 &raquo;</TD></TR><TR><TD CLASS="quote">
BUT i dont think uberdata has nitrous controls, like a switch to n/a and nitrous fuel/timing maps. Its one or the other.</TD></TR></TABLE>

this is correct, but with the new chips and a 2fer you can switch between n/a and nitrous maps with a flip of a switch. so no problems there either. drive to the track on the n/a map, and switch to the nitrous map. im planing on using my a/c switch to activate the whole system. so ill use a relay to automaticly switch between maps when the nitrous is armed. that way there is no way to forget to switch maps when spraying.

R@mon did you use 4 dry nozzels? also to keep my hp low and keep my orphace size big could i put a jet in before the block right after the solenoid? just wandering if that would work. i plan on hitting the dyno with my basic setup this summer. ill make 4 runs.
1. n/a.
2. dry shot before the throttle body.
3. dry multiport 1jet.
4. dry multiport 4 jets.
i will also be monitoring my egt temps as my whole purpose behind this small poweradder is to keep my combustion temps low.

also how far into the runners do your nozzels go?

R@mon

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Snail Tuning &raquo;</TD></TR><TR><TD CLASS="quote">
R@mon did you use 4 dry nozzels? also to keep my hp low and keep my orphace size big could i put a jet in before the block right after the solenoid? just wandering if that would work.

also how far into the runners do your nozzels go? </TD></TR></TABLE>

yah those are 4 dry nozzles. i wouldnt do the jet after the noid because it the nitrous qould start to expand right at the point and what you really want is for it to be a liquid right up till it hits the foggers. it would work, but wouldnt be very ideal. the nozzles were only in a far as i needed them to clear the outlet. setup worked good.

Snail Tuning

how did you get the nozzels to stay out that far?

RIP V8s

was also thinking of going dry DP on my kseries... ramon how much power did you make off the bottle on your k? i just bought some 440s and i know ill need bigger if i decide to dry. and what shot were you on?

R@mon

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vrex &raquo;</TD></TR><TR><TD CLASS="quote">was also thinking of going dry DP on my kseries... ramon how much power did you make off the bottle on your k? i just bought some 440s and i know ill need bigger if i decide to dry. and what shot were you on?</TD></TR></TABLE>

off bottle it made about 220, never got a good dyno on the juice but id say about 350-375

RIP V8s

what was it jetted at and other mods besides the juice? was it a stock motor 2.0 or 2.4?

R@mon

k20a2 with ips k2's/rbc/dtr header. dont remember the jet size but i just jetted it till i saw the hp i wanted

RIP V8s

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R@mon &raquo;</TD></TR><TR><TD CLASS="quote">k20a2 with ips k2's/rbc/dtr header. dont remember the jet size but i just jetted it till i saw the hp i wanted</TD></TR></TABLE>
nice, mine should be running soon, ill let you know how it goes....

-TSx
-type r cams
-TWM 52's
-5sp ep3 tranny with LSD
-100 DP dry

R@mon

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vrex &raquo;</TD></TR><TR><TD CLASS="quote">
-100 DP dry </TD></TR></TABLE>

*****! lol

id hit it with atleast 150, but thats me.lol

RIP V8s

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R@mon &raquo;</TD></TR><TR><TD CLASS="quote">

*****! lol

id hit it with atleast 150, but thats me.lol</TD></TR></TABLE>

you think? im just nervous becasue if it takes a **** on me, all the money ive put into it... only one thing i could do after that, and thats hang myself

RIP V8s

p.s. check pm ramon