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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 > My official N54 turbo upgrade build



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      02-26-2010, 05:59 PM   #155
chris b.
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I don't want to get any hopes up so don't quote me on this, but if all goes as planned the car will be back on the dyno with the upgraded turbos by the end of the week.

Parts were ordered, the turbofolds will be dropped off to get blasted with a hi-temp coating and will be ready for install early/mid week.
cool! hey if you need any help lmk!
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      02-26-2010, 09:14 PM   #156
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Are you modding the inlet charge pipe as well? The inlet and charge pipe are ID matched which means you just introduced a step in the flow right before the compressor...
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      02-27-2010, 04:32 PM   #157
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You kicked your warranty out the door.
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      02-27-2010, 06:34 PM   #158
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well if these work and actually come out soon, i might hold off on a new project/weekend car in the summer
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      02-27-2010, 07:14 PM   #159
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nice jpsimon.. I'm really happy with the power my car is making right now too, and if I could see 500whp with a nice and steady power curve, that would be perfect.. if these built twins don't run outta breath up top, this could be great
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      02-27-2010, 08:01 PM   #160
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I did this on my stock 89 supra's CT26 turbo and it was a very nice bump in power. It moved the power band up and screamed till redline. I did replace the cartridge because the stock one had too much play. Nice affodable upgrade, can't wait to see your info/results!
nice ! what was it the 57 ? 60, 60-1 ?
was it by alltec ?


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jeez we'll see how these do soon.. if it makes 30-40whp more then it's worth it in my eyes. I will also be doing meth eventually (in the spring/summer).
you should be making alot more then 30-40 in gains. much like the FP turbos although the smallest one you can find there is a 18g

i see that the BMW turbos are vary small there only so much you can do.
did you guys change the shafts? if so what are there ?
i think the only thing holding you guys back is the HPFP


has any one or will anyone every tried using a FP turbo like a Green/Red or even a Black on a BMW ? i would like to know if they can bolt on to the stock mani and fit. it would be a cheaper turbo upgrade


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      02-27-2010, 08:59 PM   #161
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Devin

AMS experimented with FP. No offense, but if FP had a housing that would just bolt up to the N54 someone would have done it long ago...
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      02-27-2010, 09:00 PM   #162
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Devin

AMS experimented with FP. No offense, but if FP had a housing that would just bolt up to the N54 someone would have done it long ago...
very true..
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      02-27-2010, 09:01 PM   #163
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You kicked your warranty out the door.

No shit sherlock
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      02-28-2010, 03:33 PM   #164
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You kicked your warranty out the door.
oh crap I better return the turbos and cancel the project!!
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      02-28-2010, 04:25 PM   #165
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      02-28-2010, 06:43 PM   #166
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Devin

AMS experimented with FP. No offense, but if FP had a housing that would just bolt up to the N54 someone would have done it long ago...
tru


anyone have a pic of the stock mani ??
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      02-28-2010, 06:56 PM   #167
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Quote:
Originally Posted by Devin View Post
tru


anyone have a pic of the stock mani ??
I get the feeling you think you're going to r&d a turbo upgrade right here in this thread... There are lots of resources on this forum that show the manifold. And if you'd read any of the turbo upgrade threads you'd have seen it posted several times. While your at it make me a big single upgrade.

This thread has no rails anymore.
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      02-28-2010, 07:01 PM   #168
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I'll try to get it back on the rails tomorrow, should be able to post up some preliminary data
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      02-28-2010, 07:11 PM   #169
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^It does for many of us man, keep us updated
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      02-28-2010, 08:23 PM   #170
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Price ?
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      02-28-2010, 10:53 PM   #171
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Quote:
Originally Posted by jpsimon View Post
I'll try to get it back on the rails tomorrow, should be able to post up some preliminary data
I've been checking e90post 95% for this thread only, don't disappoint me

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Price ?
Five dollars. Yes, Its true. If you had read the thread, you'd know this. All for the price of five chicken sandwiches you can upgrade your turbos.
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      03-01-2010, 04:24 PM   #172
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      03-01-2010, 04:31 PM   #173
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      03-01-2010, 04:34 PM   #174
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1
WHAT DOSE THAT DO FOR US!!! MORE INFO!@!@!
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      03-01-2010, 04:40 PM   #175
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WHAT DOSE THAT DO FOR US!!! MORE INFO!@!@!
baseline!
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      03-01-2010, 04:48 PM   #176
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We just did the preliminary dyno pulls today. Going to drop the car off tomorrow morning and they are going to start taking it apart.

We did a couple valet mode pulls (stock boost/timing), and stage 3+ at their default settings. The results are pretty much exactly as we estimated, although this is an awd mustang dyno so it reads MUCH lower than folks on here are normally used to seeing... and I know no matter how it is explained, people will be confused, but i digress.. moving on!

We have to remember a couple things... although the baseline run is at the stock boost levels, my car is completely catless, has an upgraded FMIC, and intakes.. So if one was to guestimate, a COMPLETELY stock 335xi would probably put down ~20+whp less. Also, these runs were done with the hood closed.

--

In valet mode (with all my mods) it made roughly 251whp / 283wtq. With the stage 3+ map (maxing out at 16psi) it made 338whp/383wtq. So the delta is exactly what should be expected if we factor in the 20-25whp less for a completely stock XI (they estimated a stock 335xi would make 230whp)

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