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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 > Walnut blasting performance before and after



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      10-11-2013, 10:05 PM   #1
Davyhay
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Walnut blasting performance before and after

I went to the track last Friday night and I also went tonight. Conditions were practically identical. The car is completely stock with the exception of JB4. I am running map 5 with 4 gallons per tank E85. I had the walnut blasting done between this week. Here are the results:

Before:
60'-2.19
1/8-8.65
1/4-13.15
MPH-109.78

After
60'-2.06
1/8-8.45
1/4-12.89
MPH-111.34
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      10-11-2013, 10:17 PM   #2
dscOFF_funON
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Thanks for posting this... Getting it done soon as well!
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      10-11-2013, 11:02 PM   #3
vr6extreme
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Do it yourself. It's not that hard
Just finished tonight and the car is totally different to drive.

Here are some before and after pics
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      10-12-2013, 07:55 AM   #4
Davyhay
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It makes a huge difference, especially on the bottom end. Now my car has 97K miles and has never been cleaned, so it was REALLY bad!! But nearly 3/10 of a second is a huge improvement!!
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      10-12-2013, 08:35 AM   #5
froop
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I don't mean to rain on your parade but the 3/10ths of a second gained are more than likely due to the better 60ft. A better measure of the performance gained is in your trap speed where you went from 109 to a 111mph.
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      10-12-2013, 08:48 AM   #6
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^^^ This
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      10-12-2013, 08:54 AM   #7
Davyhay
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I agree, but this service is also to thank for the much improved 60'. Before, I could not break the tires loose for anything. Now, even under a spirited launch at a red light at 3/4 throttle, it'll light 'em up. Though I am sure there is benefit throughout the rev range, the vast majority of the gain is in the bottom end.
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