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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > disappointing Dyno day today...wtf??



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      09-03-2016, 11:41 AM   #1
Msport335
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MHD e60..disappointing dyno day...looking for some input

last July on same dyno in fairly warmer Temps I dynoed at 442/507 on e60.. no meth or inlets

this morning now with 50/50 meth and Aem 500cc nozzle and mmp silicone inlets dynoed at 437/498. only other change made between dyno's was going from 255/40/17 conti DW to 275/40/17 nt555r and mfactory Lsd

dyno graph attached and today's logs below

http://datazap.me/u/msport335/mhd-e6...og=0&data=4-22

Here is last years Dyno logs

http://datazap.me/u/msport335/mhd-e6...og=0&data=4-23



pretty much identical Dyno graphs even running more boost up top now due to the inlets

I'm stumped....could the drag radials have robbed that much power?

even being realistic I was aiming for at least 460whp
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Last edited by Msport335; 09-03-2016 at 01:49 PM.. Reason: Title change
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      09-03-2016, 11:54 AM   #2
007_e350
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What were you IAT s and boost before/ after
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      09-03-2016, 11:58 AM   #3
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Quote:
Originally Posted by 007_e350
What were you IAT s and boost before/ after
here is the log from last year's dyno

http://datazap.me/u/msport335/mhd-e6...og=0&data=4-23
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      09-03-2016, 11:59 AM   #4
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Are you hitting full boost? My boost solenoids died and I was at 21psi not 28.
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      09-03-2016, 12:00 PM   #5
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Walnut blast?
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      09-03-2016, 12:09 PM   #6
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I'm thinking u got a leak somewhere you didn't know about that happened recently?
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      09-03-2016, 12:35 PM   #7
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Quote:
Originally Posted by CLRBLND
I'm thinking u got a leak somewhere you didn't know about that happened recently?
no leak...boost is hitting target
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      09-03-2016, 01:03 PM   #8
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How long since you blasted
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      09-03-2016, 01:07 PM   #9
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Quote:
Originally Posted by Fundguy1
How long since you blasted
less than 15k ago
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      09-03-2016, 01:16 PM   #10
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Link to log of latest dyno is not working. Although in the log from your original dyno you're running 14+ degrees timing plus you're pegging (exceeding) the stock tmap at 21.5 PSI so boost is pretty damn high. Doesn't get much more aggressive than that.
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      09-03-2016, 01:20 PM   #11
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Quote:
Originally Posted by GODDSPD View Post
Link to log of latest dyno is not working. Although in the log from your original dyno you're running 14+ degrees timing plus you're pegging (exceeding) the stock tmap at 21.5 PSI so boost is pretty damn high. Doesn't get much more aggressive than that.
1st post updated with working datazap link of today's logs

http://datazap.me/u/msport335/mhd-e6...og=0&data=4-22
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      09-03-2016, 02:33 PM   #12
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Timing is higher and AFR leaner on run before meth and inlets. Adjust tune and dyno again..
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      09-03-2016, 02:38 PM   #13
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Thats with stock turbos I assume?
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      09-03-2016, 03:09 PM   #14
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yes these are on stock turbos now with 75k miles
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      09-03-2016, 05:46 PM   #15
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Quote:
Originally Posted by Msport335 View Post
1st post updated with working datazap link of today's logs

http://datazap.me/u/msport335/mhd-e6...og=0&data=4-22
Timing was 15 degrees on the recent dyno and you had more boost up top so I really don't know what to tell you. Different days equals different results I guess.
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      09-04-2016, 01:17 AM   #16
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Try 100% meth
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