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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > Bmw 335d engine/performance mods



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      02-03-2014, 06:57 AM   #89
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Greek AWESOME!!
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      02-06-2014, 04:53 PM   #90
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Any aftermarket exhaust systems available In the US?
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      02-07-2014, 04:18 PM   #91
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i have the DTUK and i beat a c63 before. 3rd gear start -high speeds meant he was catching but i pulled a car length away initially...
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      02-13-2014, 03:03 PM   #92
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Quote:
Originally Posted by konvict View Post
i have the DTUK and i beat a c63 before. 3rd gear start -high speeds meant he was catching but i pulled a car length away initially...
Sounds good!
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      02-18-2014, 04:03 AM   #93
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I have a fair selection of performance mods on my 335d and TBH it is a bit of a beast now. I had just below stock power before any mods were done and ended up with 380BHP and 600 torque. The biggest improvment to making it exciting to drive was actually the sprint booster. The drive is so much more "spirited" the only thing to note is you can't drive it around town with the gearbox in sport mod...it's far to lively !! Having the remap done again after the Wagner FMIC, exhaust and ITG Air filter was worth it to as it sharpened everything up a bit
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      07-18-2015, 12:03 PM   #94
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Hello guys.
I am from Greece and i have a 640d F13, the same (biturbo) engine as F30 335d xdrive.

Since some of you asked about water methanol injection... I installed an AEM kit with a 500cc/min injector nozzle. I used the MAF sensor to get a signal and drive the pump (MAF has a frequency signal, and the AEM controller can read it).
I performed a dyno with the car being stock (except from Supersprint exhaust), and with the DPF in place!
Of note, since i could not find methanol in Greece at the time, i used a 40% bioethanol/60% water mixture.
Stock car-no water-ethanol: 299hp (crank)
Stock car-with water-ethanol: 330hp (crank).

After remap i got up to 383hp (crank), but the intake air temperature was up to 109oC (very hot day, largely inefficient intercooler). Of note, the injector is (unfortunately) installed AFTER the air temp sensor, so i could not see the effect of water-ethanol injection on the intake temps. In any case, i think the intercooler needs to be changed as soon as possible. I know that Wagner tuning has developed an intercooler for 535d F10. Although the stock intercooler is the same as in the 6-series, Wagner tuning could not verify if their intercooler would fit my car (difficult to risk buying it, it costs 900 euros here).

I have now enlarged the injector nozzle (using a dremel, unfortunately AEM has a 1000cc/min nozzle only as an upgrade, which i think is too much). My next steps are to change the position of the nozzle and change the intercooler. Subsequently, i need to find someone to re-manufacture the large turbo. My goal is about 440 hp, but i cannot find anyone who has done a modification on this turbo (i have seen some upgrades but from 5-series E60 and i think the turbochargers are not the same).

Last edited by DrF; 07-18-2015 at 03:38 PM.
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      07-24-2015, 12:36 PM   #95
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There's some challenge for you guys: http://www.btcf.fi/forum/showpost.ph...&postcount=280
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