Z4M Baseline Dyno

[Steenos]

I went to the dyno yesterday to get a baseline of the car. Supercharger is going in today! I was hoping for closer to 300whp but 288whp is not bad at all. My current setup is in my sig. Hope y'all enjoy!

[Twixboy]

Does the M follow the general 15% rule? If so, then 8whp gained from exhaust, headers, and tune doesn't sound like much.

[Steenos]

I never got a stock dyno. So I'm not totally sure.

[Twixboy]

Thanks for sharing. I also found this thread for comparison:
http://www.zpost.com/forums/showthread.php?t=1060789

Jay had these mods and got 297 WHP:

- ESS Tune
- RPI Air scoop
- BMC Air Filter
- Carbon filter delete
- OEM M3 CSL Headers (no cats)
- Custom Catless Mid pipe with H pipe
- Stock x pipe
- Stock exhaust
- 4.10 Rear Differential
- 19" DPE SP16 wheels

Then he got it tuned again at TTFS and increased to 316 WHP.

[Twixboy]

I don't mean to whore your thread, but I thought it'd be a good place to throw up some comparisons. I found another Z4M dyno on my local tuner's website.
Before (Drop in Filter, Scoops, Rear Exhaust, STOCK DME):
297 hp 240 ft/lb

After Custom BrenTuning DynoTune:
319 hp 250 ft/lb

Seems like you should be seeing way more WHP after a good tune, which you'll get sorted out after your supercharger install.

[Beedub]

can't wait for the s/c numbers :-)

what it are you going for?

[Steenos]

Originally Posted by Twixboy

I don't mean to whore your thread, but I thought it'd be a good place to throw up some comparisons. I found another Z4M dyno on my local tuner's website.
Before (Drop in Filter, Scoops, Rear Exhaust, STOCK DME):
297 hp 240 ft/lb

After Custom BrenTuning DynoTune:
319 hp 250 ft/lb

Seems like you should be seeing way more WHP after a good tune, which you'll get sorted out after your supercharger install.

I basically got the AA Tune just to pass emissions cause it was o2 ready even with the headers. I'm sure I'll be looking for a better tune.

[Steenos]

Originally Posted by Beedub

can't wait for the s/c numbers :-)

what it are you going for?

350whp would be nice

[Steeler]

Originally Posted by Steenos

350whp would be nice

Yaaaaaaaaaaaa go time

[Steenos]

Just hit a stopping point. Missing the long spacer for the supercharger bracket. Ugh.

[Vanne]

Glad to see your installing that puppy mate

man, id love to get a baseline done... may have to do so before my CSL intake goes in...

Good luck with the install and hope the numbers are AWESOME!!!! (which they no doubt will be with that kit your installing

[Steenos]

This damn kit is driving me insane.

[deemo319]

Originally Posted by Steenos

This damn kit is driving me insane.

You have patience and it will be installed before you know it.

That first drive after installation and sorting out the details will make it all worthwhile.

Then it's all

[Steenos]

Haha So true. I just want it!

[pokeybritches]

I agree 288 whp is lower than I would have expected, however, you can't tell if something is wrong without a stock baseline. Stock cars usually dyno around 265-275 whp on Dynojets. There are theories out there that OBD2 readiness costs a bit of power, but I haven't seen them substantiated.

This is a good pre-supercharger baseline, because all that really matters is the % gained with the supercharger. I'm guessing this same dyno will read 380-390 whp once everything is sorted.

[Steenos]

Hah, I would shit myself.

[tiltmode43]

Originally Posted by Steenos

Hah, I would shit myself.

Got the kinks sorted with the S/C setup? Any dyno planned yet?