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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, May-28-2011, 11:14:56 PM   #11
MattMan
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Default Re: Official Dyno Thread

Finally got to a Dynojet

-2004 BMW M3
-Dynojet 224XLC at Dean's Peformance (St Charles, IL)
-Supersprint Stepped V2, SS Section 1, SS Section 2 Resonated, SS Race Muffler, UDPs, Dinan Intake, Epic Race Tune (93 Octane)
-4th Gear

Notes:
- Original baseline and tuning were done on a Superflow
- Current setup baseline with previous tune was 297RWHP
- Superflow w/ Epic Tune and current setup was 314RWHP, 241 RWTRQ
- Did 312RWHP w/ previous tune but had MS elbow, SS Section 2 non res, Dinan Muffler (rest same).
- The 297RWHP # was tuned for above setup.. lost 15RWHP changing elbow, adding resonator and going with SS RACE.
- Note - Had bad alternator on 297RWHP run and 314RWHP Superflow EPIC tune run (we did hook up a batter charger to hold +12V)

Dynojet SAE w/ smoothing 5 yielded 315RWHP, 238RWTQ
AFR was right at 13.1

Current Power SAE


STD Version


Environmentals and correction data
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Last edited by MattMan; Sat, May-28-2011 at 11:25:14 PM.
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Old Sun, May-29-2011, 09:12:27 PM   #12
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Default Re: Official Dyno Thread

Thanks for sharing the results Matt! Supersprint claims that their Section 2 should not really add/gain much power. Would you say that your bad alternator may cause the 15whp loss in power?

From all the information I've been reading, it seems like the SS Race is the most free flowing muffler. I can't imagine the MS Elbow to may that big of a difference.

Do you plan on throwing back any of those previous parts to see if you gain any more power?

Regardless, you are making some STRONG numbers! As I change up my intake and remainder of the exhaust, hopefully I can begin to see some nice gains like you have.

Thanks again!
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Old Sun, May-29-2011, 10:39:02 PM   #13
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Default Re: Official Dyno Thread

Here is my baseline.

2004 BMW M3 - 5/6/11
- Bone stock (30,000 miles)
- Dynojet dynomometer @ Carb Connection (Kirkland, WA)
- 4th gear for all runs
- 66.8 deg. F, 30.30 in-Hg, 25% humidity

Corrections
SAE: 0.95
STD: 0.98

Current power vs RPM (SAE)


Current power vs RPM (STD)


Current power vs RPM (UNC)


Current power vs road speed (SAE)


I believe the different in HP/TQ in the low-mid range is because the red run wasn't WOT until ~5250 RPM. I added the run where the RPM was cut at ~6,000 RPM to give an idea what the power would be like if it had been WOT the whole run.

I am planning to go back to the same dyno hopefully sometime this week to see how much power my SS V2 headers and euro section 1 added. Bimmerworld EPIC tune will then follow.
Attached Images
File Type: jpg HP & TQ vs RPM SAE.jpg (252.7 KB, 2510 views)
File Type: jpg HP & TQ vs RPM STD.jpg (253.8 KB, 2475 views)
File Type: jpg HP & TQ vs RPM UNC.jpg (255.0 KB, 2465 views)
File Type: jpg HP & TQ vs SPEED SAE.jpg (286.2 KB, 2487 views)
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Old Sun, May-29-2011, 10:50:26 PM   #14
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Default Re: Official Dyno Thread

hey fdub!

thanks for sharing your complete stock runs on a good dyno! i'm definitely looking forward to seeing your gains with just the headers. unfortunately, my 100% stock dyno runs are not very accurate, so i ended up going to a different dyno location. hopefully seeing your gains will give me a good idea in regards to what i would have gained!

update us soon!
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Old Fri, Jun-03-2011, 03:25:59 AM   #15
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Default Re: Official Dyno Thread

Alright, here is the update.

2004 BMW M3 - 6/2/11
- Supersprint V2 stepped headers + euro section 1 w/ 200cell cats (31,000 miles)
- Dynojet dynamometer @ Carb Connection (Kirkland, WA)
- 4th gear for all runs
- 68.5 deg. F, 29.24 in-Hg, 35% humidity

Corrections
SAE: 0.97
STD: 1.00

Current power vs RPM (SAE)


Current power vs RPM (STD)


Current power vs RPM (UNC)


Current power vs road speed (SAE)


Decent results (+11HP/+6TQ). There is a dip that we kept seeing between 6,250-6,750 RPM. I could feel it everytime I made it through that area of the engine speed range. I am going to take a look at my plugs and possibly replace them. It could also be coils, but I am going to replace the inexpensive parts first. The car isn't tuned yet.
Attached Images
File Type: jpg HP & TQ vs RPM SAE.jpg (270.9 KB, 2586 views)
File Type: jpg HP & TQ vs RPM STD.jpg (272.0 KB, 2410 views)
File Type: jpg HP & TQ vs RPM UNC.jpg (269.9 KB, 2402 views)
File Type: jpg HP & TQ vs SPEED SAE.jpg (312.3 KB, 2386 views)
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Last edited by fdub; Fri, Jun-03-2011 at 03:30:10 AM.
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Old Fri, Jun-03-2011, 08:13:12 PM   #16
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Default Re: Official Dyno Thread

Thanks for sharing fdub! Hopefully you can fix up that little hick up in your powerband.

Your numbers look quite similar to mine. How many miles did you put on your car after installing the headers, before you got your last dyno?

I think what's noticeable about the SS V2 Stepped Headers that make it worth investing the extra money for is that there is a bunch in power throughout the whole powerband. It seems like with other headers, theres always a compromise in power at one end of the powerband or the other. Clearly with the stepped design, you are able to get the best of both worlds.

Have you decided on a tune yet?
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Old Fri, Jun-03-2011, 08:18:59 PM   #17
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Default Re: Official Dyno Thread

Quote:
Originally Posted by flipm3 View Post
Thanks for sharing fdub! Hopefully you can fix up that little hick up in your powerband.

Your numbers look quite similar to mine. How many miles did you put on your car after installing the headers, before you got your last dyno?

I think what's noticeable about the SS V2 Stepped Headers that make it worth investing the extra money for is that there is a bunch in power throughout the whole powerband. It seems like with other headers, theres always a compromise in power at one end of the powerband or the other. Clearly with the stepped design, you are able to get the best of both worlds.

Have you decided on a tune yet?
That's exactly what made up my mind when choosing headers. Beef up the mid range and gain that top end power, nothing I've seen out there that does it quite as well as the stepped headers.
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Old Fri, Jun-03-2011, 11:09:03 PM   #18
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Default Re: Official Dyno Thread

Quote:
Originally Posted by PerkM3 View Post
That's exactly what made up my mind when choosing headers. Beef up the mid range and gain that top end power, nothing I've seen out there that does it quite as well as the stepped headers.
With my car being almost primarily a street driven car, I really did want to do everything I can to get as much torque as I can.

I have recently thought about switching to catless, but with the reduction in backpressure, I may lose some torque throughout the powerband at the expense of making more top end power. Hmmm, what to do...
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Old Sat, Jun-04-2011, 03:12:22 AM   #19
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Default Re: Official Dyno Thread

Quote:
Originally Posted by flipm3 View Post
Thanks for sharing fdub! Hopefully you can fix up that little hick up in your powerband.

Your numbers look quite similar to mine. How many miles did you put on your car after installing the headers, before you got your last dyno?

Have you decided on a tune yet?
I went about 250 miles since installing the headers. I went out and picked up some spark plugs and I am going to swap those out tonight to see if it improves everything. I am going to redyno next Saturday with hopefully a Bimmerworld tune by then.
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Old Sat, Jun-04-2011, 03:55:18 AM   #20
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Default Re: Official Dyno Thread

Quote:
Originally Posted by fdub View Post
I went about 250 miles since installing the headers. I went out and picked up some spark plugs and I am going to swap those out tonight to see if it improves everything. I am going to redyno next Saturday with hopefully a Bimmerworld tune by then.
Nice! Im definitely looking forward to your results with tune considering we have pretty much the same power mods, sans the tune.

In August, I will be redynoing without the tune, then back with the tune. Now that my Pre-Cat O2 Sensors are fixed and having a better dyno location, hopefully I can get more accurate recordings.

Keep us posted!
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Discussing Official Dyno Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)