For the past year, I've have a suspicion that the R wasn't running as well as it did before. To debunk or prove my feelings, I decided to pay the dyno a visit today.

Blue Plot
Comptech Icebox
Spoon Header
Mugen Exhaust
18 Degrees Timing
Kosei K1 w/Azenis 205/50/15

Red Plot (Differences From Blue Plot in BOLD)
Mugen Airbox
Spoon Header
Mugen Exhaust
18 Degrees Timing
Comptech Aluminum Flywheel
JDM FD
Mugen MF10 w/Kumho 205/45/16

DISCLAMER - These are from the same brand dyno but different shops.



Modified by CPR at 7:20 PM 12/17/2003

 

Definately better midrange with your new setup. Probaby due to the spoon header.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">Definately better midrange with your new setup. Probaby due to the spoon header. </TD></TR></TABLE>

Eh. I think his midrange is better because he's running a kenji ECU. At least, that's what he was using before and perhaps forgot to add that in the mod list? Or is that with the stock ECU?

 

I took the Kenji ECU off to save on gas. Also, the Spoon header was part of both setups. The only difference between the two are the intake and wheels/tires.

 

Oh ok. Wow, that mugen intake fattied up your power.

How does the car sound with the mugen intake vs the comptech icebox?

 

Very nice.

 

I think there should be another groupbuy on the Mugen intake

 

Hmm.. I would make a comment, yet I can't see the damn plots, just a bunch of open space where the plots are supposed to be .

Austin

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">Hmm.. I would make a comment, yet I can't see the damn plots, just a bunch of open space where the plots are supposed to be .

Austin</TD></TR></TABLE>

I can't see anything either..

 

Just be patient and they will show up. I had to wait a few minutes. Grab a drink or something.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">Hmm.. I would make a comment, yet I can't see the damn plots, just a bunch of open space where the plots are supposed to be .

Austin</TD></TR></TABLE>

I think it's cuz we-todd-did-racing is acting we-todd-did today. No complaints though since it's free. I'll have the dynorun files tomorrow so I can put up a better comparison using the DynoRun viewer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegedrex &raquo;</TD></TR><TR><TD CLASS="quote">I think there should be another groupbuy on the Mugen intake</TD></TR></TABLE>

There was one in the spring. maybe those who are interested in another group buy can start organizing one.

 

I had the same problem, just refresh your screen and they take a bit of time to come up...

 

Were these done on the same dyno? I see that they are both 248C's, but was it the exact same dyno? I see one was at Springfield Motorsports and the other at Tempest Racing. You can see variances from one dyno to another, maybe not this much, but there are variances. Who knows?

 

I'm down for a mugen intake gb. My Icebox is toasted. It looks like tuning the intake would help gain some power between 5300 and 6300. You need to lower vtec to get that spike to turn int a smoothe hump.

 

ehh..two dyno runs from two different days at two diffrent shops,with a two HP diffrence?Im not trying to bring you down just saying that there could be unseen variable's,i wouldnt worrie about lossing 2hp

 

Forgot to mention another couple of mods with my current setup.
JDM Final Drive
Comptech Lightweight Aluminum Flywheel

 

I believe the JDM final drive can also affect your dyno numbers unless the dyno accounts for gearing differences.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">I believe the JDM final drive can also affect your dyno numbers unless the dyno accounts for gearing differences. </TD></TR></TABLE>

The flywheel does too. 2.5whp gained here:
https://honda-tech.com/zerothread?id=54813

 

Nice plots, are you using a cat or testpipe? And is that Mugen exhaust the USDM version or the JDM version?

 

Not to Hijack your thread, but I am going to be dynoing very shortly and need a clear cut answer to a question..

Does the size of the wheel or the weight make a noticable affect on the power output of the engine while on the dyno?

Currently I am on 17" wheels which will make the gearing longer, so would the power be the same, but for a longer period?

 

I dyno'd my stock JDM ITR engine/ecu with an AEM CAI, JDM ITR header and Comptech exhaust and dyno'd 178whp and 126wtq. Not sure if a Mugen box would make that much of a diff or if the cost would justify the increase, if any.

 

I just put up an overlay of a previous setup that comes the closest my setup now. I think after I put Kenji's ECU back on the car, I'll be into the 180s.