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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Dynoed my bone stock 335i N55



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      11-15-2014, 03:03 PM   #1
skiracer8148
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Dynoed my bone stock 335i N55

Friends of mine recently opened up their speed shop, they mostly do GM stuff but are pretty open to everything. They actually got their start by putting GM LS motors in E36 and fabbing the wiring and mounts. They had an open house for the new facility and had a dyno day. 3 runs $75, yes my car is stock but it was cheap and was curious to see what it would put down and have some base numbers for any mods I do later. The dyno they have is Land & Sea Eddy Current .Literally the only mod is Cobb drop in filter. Was hoping you guys could give me some feedback on if these numbers are on par or off
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      11-15-2014, 04:06 PM   #2
rr006rbc
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Seems a little low..usually they drop around 260-280WHP..some cars are just factory freaks.
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      11-15-2014, 06:18 PM   #3
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That's very odd, it's 20-30 off
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      11-15-2014, 11:45 PM   #4
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They don't put a fan in front of the car?
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      11-16-2014, 11:10 AM   #5
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This is not a Dynojet. Every dyno reads differently and this one reads lower than a Dynojet.
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      11-19-2014, 08:08 PM   #6
hetzle
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Quote:
Originally Posted by jazze90 View Post
This is not a Dynojet. Every dyno reads differently and this one reads lower than a Dynojet.
Exactly. Dynojets seem to read higher than most, this is in line with a 15-20% drivetrain loss.
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      11-20-2014, 07:15 PM   #7
skiracer8148
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Quote:
Originally Posted by hetzle View Post
Exactly. Dynojets seem to read higher than most, this is in line with a 15-20% drivetrain loss.
So you think this is reasonable or still seem not right?
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      11-20-2014, 07:29 PM   #8
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resonable for type of dyno, jeez seems so low compared to just adding JB4.
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      11-22-2014, 09:53 PM   #9
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Dyno are only used to compare before and after modifications
later when you add mods, make sure to dyno your car at the same place and on a day with similar temperature.
Then you will have a good idea of how much WHP you gained.
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