RyanEJ8

Nitrous hit farely strong right away, not as strong as a full 100 shot though, and the power just died off. This was typical of several dynos including ones on a 55 and 75 shot. In fact I lost power going from a 55 to a 75 shot. All the dynos were in the 150-160WHP range at 55, 75, and 100 shot (so basically no gain in hp), but there was a gain of around 20WTQ with each increment. The bottle was supposably full and had 900 psi. When hitting the purge it would take several seconds to get frost coming out. My guess is either I got the bottom of the stores nitrous tank and had a bunch of pressurized air or possibly a leak in my line or solenoid somewhere. What do you guys think?

This one was done on 100 shot....





Modified by RyanCivic2000 at 6:40 PM 10/12/2003

twkdCD595

wow definately does not look like a 100 shot... what kit and wet/dry? the zex kit in your sig?

thats horrid... you must of had a bottle full of crap pressurized air... wonder the method they used to do your refill.

what jet combination are you using.

EDIT... maybe too much fuel after reading the thread about your setup... I seen the graph at first but not now.

sporkcrx

I'm getting a red X. That sucks to waste money for the dyno with **** in the bottle

RyanEJ8

Sorry Red X is fixed.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twkdCD595 &raquo;</TD></TR><TR><TD CLASS="quote">wow definately does not look like a 100 shot... what kit and wet/dry? the zex kit in your sig?

thats horrid... you must of had a bottle full of crap pressurized air... wonder the method they used to do your refill.

what jet combination are you using, maybe not enough fuel (just seeing a redx now).</TD></TR></TABLE>

It is a dry kit. Fuel was plenty. No fuel jet used. It was controlled using Hondata nitrous controls and 550cc injectors.

twkdCD595

hmmm thats nuts?!?

the torque starts to look pretty nice but then wham... your hp rolls way down hill.

was this the first time for the fuel jet being completely removed?

RyanEJ8

It is nuts isn't it. I really hope it's just a bad nitrous fill. Either way it sucks because that was expensive dyno time wasted and Secret Services doesn't have nitrous refills.

The car made 126WHP all-motor too....
https://honda-tech.com/zerothread?id=646034

twkdCD595

this may sound stupid but did you have the bottle in so that the internal pick-up was in the right place?

I would try another refill from someplace else or a different method... if they are using a gravity refill system or something... you need the bottle SUPER cold for best results. if they have a refill station with pump they should have no problem either way... chilled is always good when filling though.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twkdCD595 &raquo;</TD></TR><TR><TD CLASS="quote">this may sound stupid but did you have the bottle in so that the internal pick-up was in the right place?

I would try another refill from someplace else or a different method... if they are using a gravity refill system or something... you need the bottle SUPER cold for best results. if they have a refill station with pump they should have no problem either way... chilled is always good when filling though.</TD></TR></TABLE>

Pickup tube was positioned right. They filled the bottle using the gravity method and they chilled the bottle for an hour before hand. I'm thinking about going to this other place nearby that uses a pump. Think that is the problem?

twkdCD595

maybe get a some other opinions but if your tuning was right and everything else... the bottle had to be full of junk in my eyes.

maybe someone else has ideas?

jdmDXrex

what kind of fuel pump do you have? have you ever considered it just not supplying enuf fuel on top end?

btw i cant see the dyno plot but for a lot of our turbo cars we noticed that even after market fuel pumps with booster pumps arent sufficient. but we were tuning built b series motors on 15-29psi boost making 350-600+ whp

just a thought. trying to help

RyanEJ8

It's not showing up for you? I can see it, can anyone else?

I am using a Holley 255LPH high pressure fuel pump. It is providing the fuel, if you could see the dyno it goes way rich as the power drops at a consistant rate too.

twkdCD595

go figure, I see it now still.

gitwidit

Pic isn't there for me either. Your fuel system is sufficicent. The nitrous fill you had could be the root problem. Do you have any idea how much fuel John added on your nitrous map? just curious.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by twkdCD595 &raquo;</TD></TR><TR><TD CLASS="quote">go figure, I see it now still. </TD></TR></TABLE>

Sony Imagestation has been giving me problems. Anyone know a better place to host pics?

twkdCD595

EDIT: can you see this one?

RyanEJ8

I can.

civicguy

try 1,200 psi

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GITWIDIT &raquo;</TD></TR><TR><TD CLASS="quote">Pic isn't there for me either. Your fuel system is sufficicent. The nitrous fill you had could be the root problem. Do you have any idea how much fuel John added on your nitrous map? just curious.</TD></TR></TABLE>

He ran the numbers by me, but I don't remember them. I'll try to get ahold of him and find out and write them down this time.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicguy &raquo;</TD></TR><TR><TD CLASS="quote">try 1,200 psi</TD></TR></TABLE>

Bottle pressure is only supposed to be 900-950psi though.

97hb

Looks just like my nitrous dyno. I had about 3 pounds in the bottle and pressure was at 1000psi. My tq started to drop off like yours. Did you weight the bottle??? I would get the bottle refilled and try again. Looks like you got the fuel though. What kind of plugs you using. Graph looks kinda shaky. Your hp line should go up, looks pretty straight to me. I'm guessing low bottle.

tegasaurus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">

Bottle pressure is only supposed to be 900-950psi though.</TD></TR></TABLE>

lolz... get it so its JUST before the red on the gauge. You'll feel some REAL kcik in the pants dyno. Your bottle isn't gonna esspload unless your release valve isn't functioning. Let the pressure cruise up to about 1200 or 1150 and make sure it stays consistent durring runs.

nice setup but im leaning towards a **** nitrous fill.

CarbonfiberR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">

Pickup tube was positioned right. They filled the bottle using the gravity method and they chilled the bottle for an hour before hand. I'm thinking about going to this other place nearby that uses a pump. Think that is the problem?</TD></TR></TABLE>
Where did you get the nitrous filled at?

twkdCD595

in my experience there is always (more often than you think) a shop that will junk fill a bottle warm or by the pressure and not the weight.

I had 2 10 lb bottles filled for almost a 70.00 bill worth of juice... come to find out it was like 4 pounds in one and like 6 and a half in the other. made for a bad weekend at the dyno also if you can imagine.

97hb

Also, I know that the zex kit uses some of the nitrous to jack up the fpr. Did you deal with this issue. Could be losing some nitrous and nitrous pressure through the zex box and could be messing with the shot. I would probably plug both holes for the fuel on the zex box.

Mase

Heh, welcome to my world not too long ago.

We had trouble on johns dyno getting the nitrous to trigger too.

I think john's dyno just doesnt like nitrous, it has a curse

it was so weird because on the street, the nitrous would trigger 100% of the time, on the dyno it was only triggering maybe 30-40 %, we were using the EMS to control nitrous though, not hondata.

Nitrous sucks, i dont like it, stick to all boost