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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 > single turbo kit thoughts and opinions?



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      08-10-2014, 09:47 PM   #1
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single turbo kit thoughts and opinions?

Go bananas on your thoughts on each kit and whatever your heart desires so long as it pertains to single turbo n54 kits.

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      08-10-2014, 09:53 PM   #2
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fftec (Excellent top and bottom mount quaility only seen one weld failure(unknown cause) of all the kits on the market it is the most proven)
Pro Tuning Freaks (Good short runner manifold nice use of space )
Ventura Motorsports (Twin scroll kit equal length longtube design.)
AD Engineering (Nice short/mid runner bottom mount kit good transitions. Would be nice as a twinscroll vband)
Proven Power (Good top mount quality low numbers)
ZNS (Horrible QC unless the one they sent that guy was a joke)
other (Aflateau's top mount is putting down good numbers)
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      08-10-2014, 10:15 PM   #3
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Quote:
Originally Posted by Ingeniator View Post
fftec (Excellent top and bottom mount quaility only seen one weld failure(unknown cause) of all the kits on the market it is the most proven)
Pro Tuning Freaks (Good short runner manifold nice use of space )
Ventura Motorsports (Never heard of it assuming fftec cloan)
AD Engineering (Nice short/mid runner bottom mount kit good transitions. Would be nice as a twinscroll vband)
Proven Power (Good top mount quality low numbers)
ZNS (Horrible QC unless the one they sent that guy was a joke)
other (Aflateau's top mount is putting down good numbers)
Afltateau is running a 6466, no?
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      08-10-2014, 10:26 PM   #4
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Quote:
Originally Posted by '___' View Post
Afltateau is running a 6466, no?
Yeah on a custom hotside kit. by John Donovan

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      08-10-2014, 10:29 PM   #5
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I guess I should add in Tony's Stage 3's Should be interesting. I'm just unsure how spool will be with two larger parallel twins.
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      08-10-2014, 11:42 PM   #6
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Some interesting info on 321 and 347 stainless steels can be found here. Could be good for those making manifolds out of SUS304 to read through.
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      08-11-2014, 08:40 AM   #7
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Quote:
Originally Posted by '___' View Post
Some interesting info on 321 and 347 stainless steels can be found here. Could be good for those making manifolds out of SUS304 to read through.
tell us about your fftec kit??
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      08-11-2014, 08:58 AM   #8
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Quote:
Originally Posted by Ingeniator View Post
Ventura Motorsports(Never heard of it assuming fftec cloan)
Not even close. Looks nothing like FFTEC

Speaking of clones the AD manifold looks a lot like the FFTEC

Last edited by chili36; 08-11-2014 at 09:15 AM..
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      08-11-2014, 09:54 AM   #9
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Quote:
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tell us about your fftec kit??
What would you like to know?

6466 precision turbo
Right now I'm just running on a "stock" map at ~20psi to make sure everything is working as it should. Unfortunately it's taking longer than I'd like, but I just don't have much time to mess with the car at all lately.
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      08-11-2014, 09:59 AM   #10
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Quote:
Originally Posted by '___' View Post
What would you like to know?

6466 precision turbo
Right now I'm just running on a "stock" map at ~20psi to make sure everything is working as it should. Unfortunately it's taking longer than I'd like, but I just don't have much time to mess with the car at all lately.
I just wanted to hear your thought on the kit? I saw you were running one. Why so long to make sure everything is up and running? Thought it was a pretty straight forward install and tune?
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      08-11-2014, 10:22 AM   #11
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Quote:
Originally Posted by chili36 View Post
Not even close. Looks nothing like FFTEC

Speaking of clones the AD manifold looks a lot like the FFTEC
Post up some links then I'll take a look and edit my first post.

Also the AD manifold isn't really a clone the transitions are much better. Shows he didn't just buy one and build his. Only so many bottom mount designs will work that is why PTF's manifold is so sweet. They ended up with really short runners.
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      08-11-2014, 10:54 AM   #12
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Quote:
Originally Posted by Ingeniator View Post
Post up some links then I'll take a look and edit my first post.
http://www.n54tech.com/forums/showthread.php?t=26075

http://www.***********.com/showthrea...t-ST-Group-Buy


Quote:
Originally Posted by Ingeniator View Post
Also the AD manifold isn't really a clone the transitions are much better. Shows he didn't just buy one and build his. Only so many bottom mount designs will work that is why PTF's manifold is so sweet. They ended up with really short runners.
Looks very similar to me. Maybe a couple of inches difference in runner length.
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      08-11-2014, 01:14 PM   #13
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Quote:
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I just wanted to hear your thought on the kit? I saw you were running one. Why so long to make sure everything is up and running? Thought it was a pretty straight forward install and tune?
I've been waiting till I have a free weekend to put my clutch in and do break in before turning up the boost. I have also just been trying to get it out and stretch its legs a little here and there when I have time to just look for consistency in performance and make sure the car is running correctly. Then I saw a little smoke one day in my rear view mirror while in low rpm and decent load (read uphill in slow traffic). So, I am trying to diagnose that as well. I hooked my boost gauge up to a barbed fitting I drilled and tapped into my oil cap and found I am reading a slight positive pressure in the crankcase under all conditions as opposed to vacuum. So, next is to remove the rb valve and shorten the pcv line from my turbo to the pcv valve and recheck. I'd be super interested to see what other single turbo guys are seeing in their crankcases as I don't know of anyone who has even mentioned do any sort of testing in that area for their single kit...
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      08-11-2014, 01:16 PM   #14
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Quote:
Originally Posted by chili36 View Post
http://www.n54tech.com/forums/showthread.php?t=26075

http://www.***********.com/showthrea...t-ST-Group-Buy




Looks very similar to me. Maybe a couple of inches difference in runner length.
the angle of each merge looks less perpendicular, which is where the big benefit would be.
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      08-11-2014, 01:32 PM   #15
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My advice to anyone who wants to get single turbo kits is to research a lot before buying anything. And i am not just talking about quality but also power
The bigger the turbo is the more power it will offer but at the same time it will be a lot slower to spool and you will lose low end power.
So for daily driving a twin turbo set up or a smaller single kit is more fun.
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      08-11-2014, 01:37 PM   #16
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Quote:
Originally Posted by mike@x-ph.com View Post
My advice to anyone who wants to get single turbo kits is to research a lot before buying anything. And i am not just talking about quality but also power
The bigger the turbo is the more power it will offer but at the same time it will be a lot slower to spool and you will lose low end power.
So for daily driving a twin turbo set up or a smaller single kit is more fun.
Staged sequential...
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      08-11-2014, 01:42 PM   #17
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Lag is good for gas mileage on high power turbo cars though!
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      08-11-2014, 01:47 PM   #18
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Quote:
Originally Posted by mike@x-ph.com View Post
My advice to anyone who wants to get single turbo kits is to research a lot before buying anything. And i am not just talking about quality but also power
The bigger the turbo is the more power it will offer but at the same time it will be a lot slower to spool and you will lose low end power.
So for daily driving a twin turbo set up or a smaller single kit is more fun.
Stoplight to stoplight in a city, for sure. But let the car stretch its legs and the curve of stock frames isn't in the same zip code of fun.
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      08-11-2014, 02:05 PM   #19
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the angle of each merge looks less perpendicular, which is where the big benefit would be.
Data to back this up?
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      08-11-2014, 02:11 PM   #20
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Quote:
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Data to back this up?
Exhaust pulse scavenging, better fluid dynamics. Should in theory have less back pressure with same tube size and turbo. If it was turned into a twin scroll it would be even more effective.

http://en.wikipedia.org/wiki/Exhaust...ust_scavenging
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      08-11-2014, 02:36 PM   #21
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Quote:
Originally Posted by Ingeniator View Post
Exhaust pulse scavenging, better fluid dynamics. Should in theory have less back pressure with same tube size and turbo. If it was turned into a twin scroll it would be even more effective.

http://en.wikipedia.org/wiki/Exhaust...ust_scavenging
Actual data comparing the two kits.
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      08-11-2014, 03:01 PM   #22
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Quote:
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Actual data comparing the two kits.
As someone not interested in either I don't really care. Why don't you wait for that data if your interested in one of them.
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