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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 > Big Turbo Kit for 335i $6400 complete



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      06-29-2007, 03:49 PM   #1
rallycobra
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Big Turbo Kit for 335i $6400 complete

http://www.racingdynamics.com/Catalo...Motor_Body.htm

They are quoting $6400 for 2 new turbos, chip, and complete exhaust. Seems like a deal, but I don't think it's for real.

Hell, supersprint is $8300 for just the exhaust

I wonder if their R30 is an APS S/R30 turbo
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      06-29-2007, 03:55 PM   #2
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Nasty, it's a good deal if it was true...
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      06-29-2007, 03:58 PM   #3
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where does it say that? all i see is a video of an E92
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      06-29-2007, 04:13 PM   #4
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It says it on the site...

R30 Biturbo

The R30 Biturbo conversion features an oversized set of turbochargers (supplied in exchange for a set of original turbos with less than 5000 miles), a complete exhaust system, and the relevant EMS.
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      06-29-2007, 04:16 PM   #5
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"Racing Dynamics' development of BMW's new twin-turbo motor is called the R35 Biturbo, and is currently being tested in a variety of trims that are already consistently surpassing the 420Hp mark."
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      06-29-2007, 04:26 PM   #6
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This starts to raise questions about gearbox/transmission and diff strength.
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      06-29-2007, 04:27 PM   #7
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Quote:
Originally Posted by Jaws View Post
This starts to raise questions about gearbox/transmission and diff strength.

and also, Definitely kills your warranty...


This is one of those mods that if you do it, you can't reverse it without spending a lot of money....unless you have the kills/knowledge to DIY...
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      06-29-2007, 05:10 PM   #8
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I said it a long time ago. No tuner or aftermarket company will be able to offer any kind of turbo upgrades until they actually come up with some fuel upgrades first.

Having a 2900psi fuel system on our cars will make this task nothing but very difficult. Once we find a reliable and feasible upgrade fuel system with reliable fuel pump and bigger injectors then we can move into upgrade turbos.

I am not trying to be pesimistic but that is the way is going to be. As far is the turbo topic, well, I think we will be much better off having Forceperformance building us a bunch of turbo upgrade unit which means putting a couple of size bigger compressor wheels and still utilizing the existing turbo housing. This is my opinion the way to go until there is much more R&D on turbokits.

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      06-29-2007, 05:11 PM   #9
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can I install this on my 325?
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      06-29-2007, 05:20 PM   #10
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I hope the car in the vid didnt have the R30 twin turbo kit......
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      06-29-2007, 09:46 PM   #11
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Quote:
Originally Posted by Evo8MRto335I View Post
I said it a long time ago. No tuner or aftermarket company will be able to offer any kind of turbo upgrades until they actually come up with some fuel upgrades first.

Having a 2900psi fuel system on our cars will make this task nothing but very difficult. Once we find a reliable and feasible upgrade fuel system with reliable fuel pump and bigger injectors then we can move into upgrade turbos.

I am not trying to be pesimistic but that is the way is going to be. As far is the turbo topic, well, I think we will be much better off having Forceperformance building us a bunch of turbo upgrade unit which means putting a couple of size bigger compressor wheels and still utilizing the existing turbo housing. This is my opinion the way to go until there is much more R&D on turbokits.

my.2c
Well said +1
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      06-29-2007, 10:01 PM   #12
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can I install this on my 325?
No
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      06-29-2007, 10:01 PM   #13
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Quote:
Originally Posted by Evo8MRto335I View Post
I said it a long time ago. No tuner or aftermarket company will be able to offer any kind of turbo upgrades until they actually come up with some fuel upgrades first.

Having a 2900psi fuel system on our cars will make this task nothing but very difficult. Once we find a reliable and feasible upgrade fuel system with reliable fuel pump and bigger injectors then we can move into upgrade turbos.

I am not trying to be pesimistic but that is the way is going to be. As far is the turbo topic, well, I think we will be much better off having Forceperformance building us a bunch of turbo upgrade unit which means putting a couple of size bigger compressor wheels and still utilizing the existing turbo housing. This is my opinion the way to go until there is much more R&D on turbokits.

my.2c

7th injector might work.
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      06-29-2007, 10:04 PM   #14
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how about the 330?
fingers crossed
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No
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      06-29-2007, 10:04 PM   #15
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No
why not? I have some ratchets and sockets and stuff

I even have a floor jack
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      06-29-2007, 10:29 PM   #16
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Quote:
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why not? I have some ratchets and sockets and stuff

I even have a floor jack
Don't see why not. A few hours should be all that it takes.
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      06-29-2007, 10:32 PM   #17
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Quote:
Originally Posted by Evo8MRto335I View Post
Having a 2900psi fuel system on our cars will make this task nothing but very difficult. Once we find a reliable and feasible upgrade fuel system with reliable fuel pump and bigger injectors then we can move into upgrade turbos.
Why do you want to change the fuel system? We are after 500hp only. Not 700.

Having fuelling/ignition map together in the package with turbos is a must. RD can provide the map.
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      06-29-2007, 10:32 PM   #18
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Quote:
Originally Posted by Evo8MRto335I View Post
I said it a long time ago. No tuner or aftermarket company will be able to offer any kind of turbo upgrades until they actually come up with some fuel upgrades first.

Having a 2900psi fuel system on our cars will make this task nothing but very difficult. Once we find a reliable and feasible upgrade fuel system with reliable fuel pump and bigger injectors then we can move into upgrade turbos.

I am not trying to be pesimistic but that is the way is going to be. As far is the turbo topic, well, I think we will be much better off having Forceperformance building us a bunch of turbo upgrade unit which means putting a couple of size bigger compressor wheels and still utilizing the existing turbo housing. This is my opinion the way to go until there is much more R&D on turbokits.

my.2c

I agree, even if we could run just two more psi(16) at 6k rpm w/turboback and tune We would be well over 400whp, while maintaining a nice lag free driving experience.
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      06-29-2007, 10:35 PM   #19
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I agree, even if we could run just two more psi(16) at 6k rpm w/turboback and tune We would be well over 400whp, while maintaining a nice lag free driving experience.
The stock turbos will make 20psi @ 4500rpm. Don't ask how I know.
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      06-29-2007, 11:20 PM   #20
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Why do you want to change the fuel system? We are after 500hp only. Not 700.

Having fuelling/ignition map together in the package with turbos is a must. RD can provide the map.
why stop at 500hp? if for no other reason do it for keeping the 335 from losing value sooner... for example look at how well the potentially +1500rwhp supras are still valued today.

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The stock turbos will make 20psi @ 4500rpm. Don't ask how I know.
but how hot is the air that's being forced in at that psi? that might be outside the efficiency range for the turbos.
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      06-30-2007, 01:00 PM   #21
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It says on the website "in exchange for a set of original turbos with less than 5000 miles"....um, who's car will be under 5000 miles by the time anyone gets around to buying this kit?!
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      06-30-2007, 01:49 PM   #22
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It says on the website "in exchange for a set of original turbos with less than 5000 miles"....um, who's car will be under 5000 miles by the time anyone gets around to buying this kit?!
At $6400 if you subtract the cost of the exhaust ~$1800 + $1400 for the Xede you are left with $3200 for a pair of turbos. Not too bad. However, anybody will be crazy to do this mod at less than 5000 miles.
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