N54 Single Turbo Kit Choice

DASN54

Specialist
May 27, 2019
62
25
0
Pismo Beach, CA
Ride
2008 Jet Black E90 335i


I went Speedtech with s372sx-e. No complaints so far except I fried the MSD80 ecu lol. I haven't had the motivation to get it fixed yet so she just been sitting lol

Hows the spool on your setup? Originally I was going to go with a BW but since leaning towards Precision.
 

Abacus38

Lieutenant
Nov 2, 2016
643
385
0
34
Tampa/Orlando, FL
Ride
2007 Ti Ag 335i
Hows the spool on your setup? Originally I was going to go with a BW but since leaning towards Precision.
I would recommend going with a smaller Borg Warner since this one is a 72mm. As of right now (still in the process of tuning it) I’m getting full boost on 93 of 23 psi around 5000-5200rpms. On a s362sxe you’ll spool a lot quicker. Generally I’ve seen those hit full boost on 93 around 38-4200rpms on 93
 
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MoistNapkin

Corporal
May 25, 2019
104
89
0
Ride
08 135i
Im at 18 psi and getting absolute full boost at exactly 3500rpm. We'll see what happens the next few revisions.
Im on a precision 6266 gen2blahblah.
 
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DASN54

Specialist
May 27, 2019
62
25
0
Pismo Beach, CA
Ride
2008 Jet Black E90 335i
So I'm ready to pull the trigger and I have emailed and text Jeff from Speedtech with no response. I also read some people are having issues with O2 sensors on this kit. Anyone have any current updates on Speedtech? Should I look at another kit?
 

RuskiRacer

Captain
Jul 17, 2019
1,209
757
0
Ride
2009 e93 335i
So I'm ready to pull the trigger and I have emailed and text Jeff from Speedtech with no response. I also read some people are having issues with O2 sensors on this kit. Anyone have any current updates on Speedtech? Should I look at another kit?
Doc race is a good kit. Jeff always responds to me so thats wierd
 

nexus

Lurker
Jul 2, 2017
12
6
0
Ride
135
No, issues with Jeff @Jeff@Speedtech or the kit. He usually responds within 24-48 hours. Also, if you plan on running stock o2's there are a few threads on the issues that people have had on all the kits out. Recommend just going with ADV and not dealing with the headache.
 

DASN54

Specialist
May 27, 2019
62
25
0
Pismo Beach, CA
Ride
2008 Jet Black E90 335i
So I ended up with a VI Engineering Top Mount, couldn't pass up the deal I got. I was messaging Jon (owner/fabricator) and he advised to just Ceramic Coat the manifold and leave the downpipe bare to prevent the manifold from cracking, hearing that made me scratch my head since every top mount I have seen has a wrapped or coated downpipe due to the heat. I was planning on coating everything but per Jon's recommendation I guess I'm going to coat just the manifold and dump tubes.
 
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Brule

Sergeant
Feb 20, 2017
371
440
0
Ride
335i 2007 6spd manual
Hope you get your kit.
Theres a few horror stories on the forums about delays and missing parts.
 
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