Dyno: SMSP vs Mugen - Honda Prelude Forum

LVSBB6 · 07-31-2005, 12:57 AM

Mods: TWM 52mm ITB/motorcycle sock filters/AEM EMS tuned by myself
The rest of the engine mods are Jun cams/SMSP header/SMSP exhaust with Sard muffler/UR pulleys
Head and bottem end is USDM stock w/ 10.1 compression

Our local Dynanometer reads about 10% less than Dynojets, as bone stock Preludes are averaging only 140whp on this dyno (vs 154whp on dynojet). If you want to translate my numbers to dynojet figures, multiply 206 by 1.1 would be fairly accurate.
Im also running AEM big brakes and 18" wheels, so numbers could be higher w/ stock brakes and smaller wheels setup.

I was able to do a run just before header swap for a more precise comparison:
196whp represents BLUE line, which I had Mugen header & T1R exhaust. Its a little lower than last time (200whp) due to hotter intake temperature
RED line (206whp) is w/ SMSP header & exhaust.

SMSP 206.3whp@~7700, with over 200whp on tap from 6800 to 8700

Jun cams with SMSP is such a killer combo
Mugen 196.3whp@~7100, power started to fall off after 7400.

At 8000 there's a difference of 16whp(205 vs 189). The gains would be 25whp if I revved to 8300 with Mugen setup. Now if I extend the Mugen curve out to 8700, the difference would be a whopping 35whp (200 vs 165)!!

SMSP 163tq @~6000
Mugen 157tq @~6000

ThatPreludeGuy · 07-31-2005, 06:59 AM

Wow all the word about how the header is made to work with a more aggresive setup is true. Those are some NICE gains, makes the money for the SMSP worth at that point

Mojo85 · 07-31-2005, 07:14 AM

look at that torque curve!!!!!!!!!!!

Is AEM EMS hard to tune? I really want to get into moding the engine and keeping it N/A, but i have still lots to learn so i'm wondering how hard is it?

azjs · 07-31-2005, 07:56 AM

Very nice! Thanks for sharing with us mate - this is the first time I've seen mugen being outperformed in the header department! Is it still a t1r exhaust, or is it an smsp item too?
-az

Somboa · 07-31-2005, 12:07 PM

Good stuff. What cat are you running (if any)?

LVSBB6 · 07-31-2005, 04:19 PM

^Im running test pipe for both runs.

sharkcohen · 07-31-2005, 06:30 PM

Look how much better the SMSP flows above 7000 rpm compared to the Mugen. Amazing.

I think what is most impressive is that you have been tuning the AEM EMS yourself. It must also be very satisfying.

MugenPoweredLude · 07-31-2005, 08:18 PM

amazing!!!

LVSBB6 · 07-31-2005, 09:41 PM

Good point! SMSP outflows Mugen handsdown.
Infact if I revved up to 8700 with Mugen, it looks like I would land @100 lb-ft, but at 100 lb-ft that's just 165 whp. While SMSP still makes 200whp, the gains would be a whopping 35whp!!

I'm just an amateur aem ems user, I bet there's still room for further improvement in the hands of professional tuner.

Quote:

Originally Posted by sharkcohen

Look how much better the SMSP flows above 7000 rpm compared to the Mugen. Amazing.

I think what is most impressive is that you have been tuning the AEM EMS yourself. It must also be very satisfying.

monk3y · 07-31-2005, 11:11 PM

WoW that's really impressive!

good stuff, man

Emerald99 · 08-01-2005, 07:04 PM

If I had one wish in the world, besides the obvious ones, it'd be for LVSBB6 to rebuild the bottom end, that'll be the happiest day of my life. You rule LVSBB6.

hwani.h22a. · 08-01-2005, 07:32 PM

wow. Mugen got K.O.ed.

Mojo85 · 08-02-2005, 04:21 PM

which stage of jun cams do you have?
what other mods to your valvetrain have you done?
would AEM EMS work on an OBDII ecu?

AllMotorBB6 · 08-02-2005, 04:32 PM

Quote:

Originally Posted by Mojo85

which stage of jun cams do you have?
what other mods to your valvetrain have you done?
would AEM EMS work on an OBDII ecu?

Jun only has one profile for the h22...its Jun III

Aem ems replaces your ecu. You start completely from scratch.

azjs · 08-02-2005, 07:02 PM

Quote:

Originally Posted by LVSBB6

I'm just an amateur aem ems user, I bet there's still room for further improvement in the hands of professional tuner.

I'm pretty damn sure there's huge room for improvement - you've done ok thus far!

-az

dvsracergirl · 08-08-2005, 04:06 PM

damn...i love my mugen....but i need the power the SMSP has past it.

Hokester · 08-15-2005, 11:38 AM

How much of the difference do you think is due to the Mugen being mated with the T1R exhaust versus the smsp being mated with the smsp exhaust. Granted there will still be a difference with the smsp header outperforming the Mugen, but how much of that do you think it is due to the exhaust? Or how much better would the mugen perform if mated to the smsp exhaust?

LVSBB6 · 08-15-2005, 10:41 PM

Cannot say how much better the smsp exhaust tubing is, but I would say the majority of the gains come from the header. Hope that helps