dyno graph...


base run yeild 141.59 whp and 145.55 wtq
2nd run yeild 174.14 whp and 177.74 wtq
3rd run yeild 182.53 whp and 191.98 wtq

h23a1

modifications

*short ram intake with tenzo air filter
*msd 6a
*no power steering belt
*bypassed cold start valve
*nos dry sytem - 60 shot
*magnaflo exhaust

would a S-AFC improve the choppy power curve so it could be smoother?


Modified by prelude2sin at 1:34 PM 12/19/2003

 

What brand of nitrous you using?

 

NOS dry system

 

my question is if the dips in the power curve could be do to the clutch slipping?
is the hdss pressure plate cool for the power out-put?
also i was expecting 60 whp increase but it was less. is this normal?

 

the hdss will handle anything you throw at unless you are making 300+ whp, then you need to consider the amount of torque you're making.

 

Have to say the dyno's kinda disappointing to me......

~40 hp from a 60 shot?

Can't really see the graph too good, do you have an a/f chart?

 

cool.

always wanted to know what my old engine would be pulling if i sprayed.

feel free to post in link in my sig too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">Have to say the dyno's kinda disappointing to me......

~40 hp from a 60 shot?

Can't really see the graph too good, do you have an a/f chart? </TD></TR></TABLE>

i didn't think you actually got 60 hp to the wheels w/a 60 shot

 

w/ most wet systems you will get 60 to the wheels if that is the shot you run. Dry systems tend to run a little less than advertised

 

im also disappointed that i did not get 60 whp. now i kno that dry kits produce less than they suppose to.

ludeykrus i have no a/f graph.

this link leads to bigger pix of dyno graph
http://www.imagestation.com/pi...g.jpg
better pic of torque curve



Modified by prelude2sin at 9:25 PM 12/25/2003

 

I have seen a 100shot on a a/c VW bug, but that was w/ some slightly lean tuning. Usually you'll get right below the advertised HP rating, but 40/60 is a wide margin!

 

i was thinking that the stock exhuast manifold is really hindering air flow on my car. also maybe the stock clutch is really slipping badly. that might explain the power dip. shoot im not really sure.

 

clutch could be it. not getting enough fuel could be a reason also

 

put your car in fifth at like 25 or 30 and floor it
and see if it rev's up w/o the car pulling

 

i e-mailed a holley tech if the results were kool or not and this what they said,

"41hp to the wheels is good for a 60hp jetting. If the tune up is safe
then I would not touch it. Thanks Jessie".

hmmm what do you guys think?

 

Either the "tune" is a little too safe, or something's robbing power somewhere.

First, go to an interstate, get the car to 5th gear at cruising speed, floor it and spray and see if your speed rises w/ the rpm's. If the rev's go, but not the car, then your clutch is slipping.

It wouldn't be a restrictive header b/c the H23's is pretty good from the factory. I would bet that you are running pretty rich.

Like I said before (in I-haven't-slept-in-2-days english!) is I have seen an old bug w/ a 100shot make 102hp at the rear wheels; it's all in the tuning.

 

NOS rates there power to the crank not the wheels, I have a 70 shot, and I only get like 45 from it, I think zex rates there power to the wheels. I think, not sure, but am sure about NOS brand.

 

ludeykrus would there be a certain smell if the clutch was slipping. everytime i would spray i would smell a certain, shoot i cant explain it, but there is a smell like burnt material.

 

That just doesn't sound right to me; I would still bet that the a/f is very rich when spraying, and some power could be made by tuning it out.

Even w/ 45hp out of a 70 shot, that motor's supposedly losing 33% of its power through the drivetrain! I would expect about 60whp out of a 70shot

 

get one step colder plugs and play with the distributor timing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The Raven &raquo;</TD></TR><TR><TD CLASS="quote">get one step colder plugs and play with the distributor timing.</TD></TR></TABLE>

have you done this b4? how did it go?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slp mode &raquo;</TD></TR><TR><TD CLASS="quote">NOS rates there power to the crank not the wheels...</TD></TR></TABLE>

yep you are right. i e-mailed a holley tech and this what they said,

[These kits are measured at the flywheel. Thanks Jessie

------Original Message-----
From: H23PWR@aol.com
Sent: 1/9/2004 1:55:23 AM
Subject: how does NOS rate advertise power gain?

Im just curious where power is measured from, at the flywheel or at the
wheel? more specifically for a dry kit. thanx in advance.]

also note that in their 2003 cataloge they claim the more "inefficient" the engine the more it would benefit from n2o.

vehicle................................"35hp" jetting..."50hp"jetting
---------------------------------------------------------
1998 neon 2.2l DOHC............40hp...............61hp
2000 focus 2.0l.....................39hp...............50hp
1993 crx 1.6 vtec..................35hp...............48hp

 

Holy torque!!! I would try NGK BKR7E plugs and checking the cap & rotor. Where did you have it dyno'd?

 

a shop in upland called hook-ups.

 

heres my buddies prelude w/ 75 shot

http://nehondaclub.proboards19...93391