interesting turbo setup on a M5

[Hyperion]

Hi Guys, was sent this email today of a turbo'd M5, i was oh ok, but then i saw this pic, have you ever seen something like this before??

[maxfield]

Was discussed in another thread.

Conclusion was good but could be laggy.

[gcorky]

oh turbines going through a puddle...or rain...tut tut

[buster]

bizzaro

[tomson]

never seen that before

[DieselMeister]

Surely this approach only merits being used when you can't physically fit the turbos in the engine bay (or accomodate the heat)? I would have thought that the cooling benefits wouldn't necessarily offset the extra distance the air had to travel but I'm no engineer. I guess lag is less of an issue when you already have 5.0 litres to play with

[stuartgallafant]

funny enough, we were talking about this last week on my technical course!!

i dont suppose you have a link do you?

our conclusion was serious lag

[Turbo-Brown]

The heat of the exhaust gas plays a large part in spool times and, by the time the gas has reached the rear of the car there isn't much heat left in it.

Gotta say that the quality of that setup looks....er questionable!

The welding looks like pigeon shit!

Looks like the turbos live on diff oil too!

[e30_Turbo]

Here ya go, the pro's :

Benefits of Remote Mounting

* Ease of installation. STS turbo systems can be installed in about 8 hours with standard tools and average mechanical ability.
* Performance Sound. The turbo acts as a muffler and sounds like an aftermarket performance muffler. Turbo spool and rushing air from the blow-off valve make a unique sound that will turn heads!
* No need for major modifications to your vehicle. STS systems are designed to "bolt-on" to factory mounts.
* Increased gas mileage. Unlike a belt driven supercharger, the turbo utilizes "wasted" energy leaving your tailpipe. Most of our customers get 1-3 mpg increase in gas mileage.
* Lower underhood temperatures. No need to worry about melting wires, hoses, or other components.
* Converts back to stock in about an hour.
* More room under the hood. Future repair work or modifications will not require the expense of removing the turbo system to allow access to engine components.
* Cooler oil to the turbo. Cool oil is better for both the turbo and engine.
* Approximately 500F lower turbo temperatures. Eliminates the need for a turbo-timer, which allows the engine to run after the car is shut off in order to cool down the turbo and prevent oil and bearing damage.
* Denser exhaust gasses drive the turbo turbine wheel more efficiently.
* Built-in intercooling. Intake piping provides ~50% intercooler efficiency. There is no need for the expense, pressure drop, and installation problems associated with a front mounted intercooler.
* Turbo is exposed to ambient air rather than underhood air. Allows for better cooling of turbo components.
* No need for expensive headers, mufflers, or exhaust systems.
* Turbo is closer to the tail pipe outlet. Provides a better pressure differential across the turbine wheel which promotes better flow across turbine.
* Better weight transfer. Increases traction because the bulk of system is mounted in rear of vehicle rather than up front.
* Less noise in the passenger compartment.

[Kos]

saw it in bmw car mag, i thought it was intersting

low boost application with roller bearing turbo's it could work quite well.