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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 09-25-2010, 06:04 PM   #1
Iceman00
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Finally: Dyno Shark vs Stock

The title is a bit misleading, as the car relatively stock at least.

Test car was my 2000 Z3 M52TUB25 with Shark injector, Supersprint "exhaust" (a muffler) and 'debaffled' intake. That's it.

I flashed the car back to stock, made my 3 runs, and then reloaded the Shark Injector and made 3 more.

First run was expected to be low, as the car had to warm up. We then did two more runs (with near identical power). We took a break, loaded in the Shark programming. The car's first one (the lowest) matched the previous best. The next run was the was better, and the 2nd run being the strongest. For the 3rd run, I took the filter out of the intake box, virtually no change in power.


I have run files if anyone wants them (and to post better pictures of the graphs for me) Feel free to ask questions. And yes, I will be posting a dyno of every engine
modification I do


I have excessive rear camber, I know

I like this picture a lot, despite it being blurry

Peak power
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Old 09-25-2010, 06:07 PM   #2
dfjaws
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So all in all you gained about 5 hp? Hmm..
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Old 09-25-2010, 06:38 PM   #3
Iceman00
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I'm wondering where my torque is.
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Old 09-25-2010, 07:11 PM   #4
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Old 09-26-2010, 05:18 PM   #5
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Looking for headers and a B30 intake manifold...
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Old 09-27-2010, 03:18 AM   #6
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so... $300=5whp?
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Old 09-27-2010, 09:51 AM   #7
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Originally Posted by e36-2.0 View Post
so... $300=5whp?


HP gains vary with every motor. (as from Conforti website)

Edit: was wrong previously, 323 shares the same motor to me for forgetting that.
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Last edited by Blocked Out; 09-27-2010 at 12:10 PM.
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Old 09-27-2010, 10:12 AM   #8
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so... $300=5whp?
What other mod give you 5hp around the same price but is as easy as shark.. Headers yes but install is a bitch.
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Old 09-27-2010, 10:37 AM   #9
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Intake should be here this week, I'll dyno it next. Still undecided on a header choice, and I'm trying to source a B30 intake manifold. I'll keep you all posted.
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Old 09-27-2010, 10:09 PM   #10
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just wanted to say thanks for doing this. I will stay tuned.
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    Old 09-28-2010, 07:42 AM   #11
    aggieE46
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    Nice job! Can't wait to see more updates.
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    Old 09-28-2010, 08:07 AM   #12
    m3collins
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    I see you are in Fl. Not too far from Atlanta PM me and I'll get you with someone that does custom tunes. Shark injector is still a widely conservative off the shelf tune and a custom tune that costs only $200 more than the shark will net you much much more gains in the midrange. Shoot I bet that for free they will let you flash to stock and do some pulls, flash the shark and do some pulls, and then their custom tune to compare them all.
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    Old 09-28-2010, 02:36 PM   #13
    Iceman00
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    I think I found out where some of my power is; Got a check engine light today with P1188 P1189 P0173 and P0170. Running lean apparently, so I'll trying cleaning the MAF, replacing the lower intake boot, replacing the crappy Bosch plugs the car came with, and putting the intake on. We'll see what happens.

    Last edited by Iceman00; 09-28-2010 at 02:51 PM.
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    Old 09-28-2010, 02:43 PM   #14
    alibusoul
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    Doesn't it take some time for the DME to adjust the air/fuel ratio when you de shark and reshark? Or does the shark software do all that right away?

    Your M52 is running strong at 158rwhp at the wheels for being "stock", shouldn't it be around 145rwhp
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    Old 09-28-2010, 02:51 PM   #15
    Iceman00
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    Quote:
    Originally Posted by alibusoul View Post
    Doesn't it take some time for the DME to adjust the air/fuel ratio when you de shark and reshark? Or does the shark software do all that right away?

    Your M52 is running strong at 158rwhp at the wheels for being "stock", shouldn't it be around 145rwhp
    No, mid 150's would be normal for an M52tu. I'm not sure about the adjustment period though. Supposedly it learns your driving style, and will adjust accordingly. I try to do a mixture of driving styles, so I don't know how well that's working for the ECU.

    I can say this car feels smoother than my last Z3, but the top end power, and mid range torque (especially when I had an intake) aren't quite there.
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    Old 09-28-2010, 09:07 PM   #16
    Iceman00
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    Currently talking with a few people about the Schiedmann headers, or what other options I have. Worst case scenario, I go with ebay headers, and thermal wrap them again.
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    Old 09-29-2010, 11:32 PM   #17
    Iceman00
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    Added the intake today, broke some shit, so I'll probably be set back on the dyno until later next week (if possible)

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    Old 09-30-2010, 01:16 AM   #18
    TiAgTouring
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    very nice What kind of intake?

    Would love to see a dyno with an M54B30 intake manifold on an M52TUB25!!
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    Old 09-30-2010, 10:46 AM   #19
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    in for updates
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    Old 10-04-2010, 06:02 PM   #20
    Iceman00
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    Putting in my new radiator today, hopefully we'll see some dyno time by the end of the week. What should I do next? Intake manifold, Pullies, or Headers?
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