Dyno Run: N52 6MT + Supersprint Headers (Stock Tuning)

3002 tii · 04-21-2017, 08:36 PM

Had to submit a dyno sheet for the track season. Goal was to get as close to the minimum weight to average hp limit of 14.5. Average is calculated as max hp + sum of next 3 highest data points that are +/- 500rpm increments from peak divided by 4.

Car: 2007 Z4 3.0si coupe 6mt with 80,000 miles
Exhaust: SS headers + 3" exhaust w/ 100 cell cat
Intake: RPi scoop + factory air box
Software: NONE - I reverted back to stock just to be safe

With no tune, I put down 235hp/219tq. Average hp using the formula above was 223whp. Competition weight including driver is 3260lbs so from a classing standpoint I couldn't ask for better #'s since that put my ratio at 14.6 (vs class min of 14.5).

TRiCC · 04-22-2017, 12:45 AM

very impressive n52 numbers !

Vanne · 04-22-2017, 03:27 AM

Bloody awesome stuff!! not sure if I've said it before, but that sure looks like a well setup track car mate.

3002 tii · 04-22-2017, 06:58 AM

Quote:

Originally Posted by TRiCC

very impressive n52 numbers !

Quote:

Originally Posted by Vanne

Bloody awesome stuff!! not sure if I've said it before, but that sure looks like a well setup track car mate.

Thanks fellas, assuming 15% drivetrain loss it comes out to about 275-280 crank. Im pretty sure with a good tune I could get very close to 250whp.

3GFX · 04-22-2017, 09:42 AM

Impressive for sure. That manifold on the N series makes all that difference.

With tuning, no cats, headers, dinan intake and axel back I'm putting down the exact same power on the dyno. The problem is that my software was pulling more with each run, so I'm not sure what the peak in the end may have been after it settled in.

3002 tii · 04-22-2017, 02:07 PM

Quote:

Originally Posted by 3GFX

Impressive for sure. That manifold on the N series makes all that difference.

With tuning, no cats, headers, dinan intake and axel back I'm putting down the exact same power on the dyno. The problem is that my software was pulling more with each run, so I'm not sure what the peak in the end may have been after it settled in.

Nice, how loud is that setup? Do you find it to be ok for daily driving?

3GFX · 04-24-2017, 10:01 AM

Quote:

Originally Posted by 3002 tii

Nice, how loud is that setup? Do you find it to be ok for daily driving?

I wish it was louder

But yea its great, not overly loud because I still have the stock resonators which are fairly free flowing.

3002 tii · 04-24-2017, 10:26 AM

Quote:

Originally Posted by 3GFX

I wish it was louder

But yea its great, not overly loud because I still have the stock resonators which are fairly free flowing.

Nice which catback are you running?

3GFX · 04-24-2017, 12:34 PM

Quote:

Originally Posted by 3002 tii

Nice which catback are you running?

Headersm not cat.

Stock mid-pipes (no cats).

Axel back only....Dinan.

https://www.youtube.com/watch?v=EGjfCWPGbI4

Steeler · 04-24-2017, 02:34 PM

Quote:

Originally Posted by 3GFX

Headersm not cat.

Stock mid-pipes (no cats).

Axel back only....Dinan.

https://www.youtube.com/watch?v=EGjfCWPGbI4

So you do not have any cats??

3GFX · 04-24-2017, 02:38 PM

Quote:

Originally Posted by dbarton62

So you do not have any cats??

Nope

Steeler · 04-24-2017, 03:16 PM

Quote:

Originally Posted by 3GFX

Nope

How does that work for you at emissions time??

3GFX · 04-24-2017, 03:25 PM

Quote:

Originally Posted by dbarton62

How does that work for you at emissions time??

Ask me next March

04-21-2017, 08:36 PM	#1
3002 tii Lieutenant General 2282 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.22]	Dyno Run: N52 6MT + Supersprint Headers (Stock Tuning) Had to submit a dyno sheet for the track season. Goal was to get as close to the minimum weight to average hp limit of 14.5. Average is calculated as max hp + sum of next 3 highest data points that are +/- 500rpm increments from peak divided by 4. Car: 2007 Z4 3.0si coupe 6mt with 80,000 miles Exhaust: SS headers + 3" exhaust w/ 100 cell cat Intake: RPi scoop + factory air box Software: NONE - I reverted back to stock just to be safe With no tune, I put down 235hp/219tq. Average hp using the formula above was 223whp. Competition weight including driver is 3260lbs so from a classing standpoint I couldn't ask for better #'s since that put my ratio at 14.6 (vs class min of 14.5). __________________ Follow for latest mods Last edited by 3002 tii; 05-20-2017 at 08:36 PM..
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04-22-2017, 12:45 AM	#2
TRiCC E86 M Coupe 265 Rep 403 Posts Drives: Z4M Coupe Join Date: Oct 2009 Location: SOCAL iTrader: (3)	very impressive n52 numbers !
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04-22-2017, 03:27 AM	#3
Vanne Down Under!! 1621 Rep 4,294 Posts Drives: 2007 Z4MC Join Date: Mar 2013 Location: Dubai iTrader: (4)	Bloody awesome stuff!! not sure if I've said it before, but that sure looks like a well setup track car mate. __________________ 2007 EuroSpec Z4///MC - Building/Developing Z4 GT3 Powered by
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04-22-2017, 09:42 AM	#5
3GFX Captain 723 Rep 912 Posts Drives: 2003 BMW Z4 3.0i Join Date: Sep 2015 Location: Ontario iTrader: (0)	Impressive for sure. That manifold on the N series makes all that difference. With tuning, no cats, headers, dinan intake and axel back I'm putting down the exact same power on the dyno. The problem is that my software was pulling more with each run, so I'm not sure what the peak in the end may have been after it settled in.
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