What the heck is that... how could a rubber band + zip ties help the car!?

 

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


Thats not a DIP, thats the fall of the CAI HUMP.


Side note: I put down 155-160 on a dynapack, and then 175-180 on a dynojet.</TD></TR></TABLE>

Dynapacks can measure higher or lower than a dynojet. All depends on how it is setup. Most people who run dynapacks can tell how their dynapack compares.

Cruzer

 

What kind of differences can there be? How can you set it up differently?

 

I believe it depends on the different programs and software available. But, don't quote me on that.

Search Dynapack at google.

You should pull up some more information.

It's all irrelevent anyways. A dyno number is just a number. It should only be used as a tuning tool or a parts comparison tool when controling variables.

Trying to compare one persons dyno to another is wastefule pissing contest, unless you are doing back to back runs at the same dyno with similar weather conditions and engine temps.

Cruzer

Cruzer

 

I am no expert in chemistry, so I cannot tell you how it work exactly.

But whatever the case is, it does show gain on the dyno, 1-2 whp peak and 3-5whp at 5-6000rpm. And all I have to do is wrap that rubber band around the fuel line and zip tie it.

NO, the zip ties did not help gain whp!!

 

Something's wrong here...your torque doesn't match your HP.

On the first chart you posted, you are above 200whp at 8000 RPM. However at 8000 RPM, you are making 119 ft-lbs torque. 119*8000/5252 = 181whp

Your torque curve also shows the 1.1 Cf like the HP curve so they should be matching up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SurferX &raquo;</TD></TR><TR><TD CLASS="quote">Something's wrong here...your torque doesn't match your HP.

On the first chart you posted, you are above 200whp at 8000 RPM. However at 8000 RPM, you are making 119 ft-lbs torque. 119*8000/5252 = 181whp

Your torque curve also shows the 1.1 Cf like the HP curve so they should be matching up. </TD></TR></TABLE>

hmm..

 

thats the wierd thing about the dynapack that i dont get.

 

Is it normal for Dynapacks to register strange HP numbers? This is the first time I've seen a Dynapack register an incorrect HP/Torque figure. Granted I've only seen a couple Dynapack charts, but still, this doesn't add up.

Also the gear ratio doesn't seem to add up to any of the standard Honda gear*FD ratios. Could the gear ratio have been entered incorrectly and this is what is giving the wrong HP number? I understand Dynapacks do not use an electrical RPM connection to the ignition, and just get the RPM number by the gear ratio. But I don't know, just some observations.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SurferX &raquo;</TD></TR><TR><TD CLASS="quote">
Also the gear ratio doesn't seem to add up to any of the standard Honda gear*FD ratios. Could the gear ratio have been entered incorrectly and this is what is giving the wrong HP number? I understand Dynapacks do not use an electrical RPM connection to the ignition, and just get the RPM number by the gear ratio. But I don't know, just some observations.</TD></TR></TABLE>

Ratio is Gear * Final

 

You are right, the tq and whp number doesn't match, it weird. I will go back to the dyno place to get them print out the file with all the rpm/tq/whp numbers in it, and I will try to see what's going on.

As for the gear ratio, the reason is that I don't have stock Honda gear, that's why. But then when I do the calculation, it still off by like 0.1 on the ratio. I don't know, got to go talk to the shop about it and try to see what's going on.

 

Finally figured out why the tq and the whp doesn't match. It is because on dynopack, the tq number shown is the uncorrected number and the whp number is the SAE corrected number.

At the place I dynoed at, the SAE corrected number is around 12% higher than the uncorrected number. (high elevation really suck)

I tried to get the dyno place to print out the SAE corrected tq number and plot it against the SAE corrected whp number, but they were not able to do it. (This suck big time)

Also, the CF was set to 1.1 by mistake, so to get the real whp number, just divide the whp on the graph by 1.1

I hope that explained all the questions about the tq and whp graph doesn't match.

 

It's all so clear now...

;-)

Cruzer