enjoy the read:

http://www.germancarfans.com/news.cf...id/2051115.002

awesome read thanks for the post!

These German engineers never fail to impress

Ok. Now this turbo will be a very interesting aftermarket
consideration. Probably costly to start, and definitely not
a simple bolt-on, because you will definitely need to
program for it, but I do hope it becomes available for
retrofits.
Joe

Interesting, thanks for sharing that link.

It would seem like programming of such in the form of mods becomes much more complicated. Any prelim comments from turbo guys?

This is new?

I have had this kind of turbo on my BMW M3 for 6 years!

what type of turbo does your car have?

Anyhow, it's not a production engine/turbo system you have, which is what is new wit h the Porsche.

I wonder if after market tuning will become more difficult or not?

The VTG turbo must cost a lot more, and be much harder to program.

The VGN, VTN or VATN technology has been around for a long time 15-20 yrs. Mercedes and Mitshu still use the turbos today in their production trucks. Nothing new. Except for use in a car.

I have the Bell Aerodyne VATN. It is the larger unit that is capable of +500hp. The unit itself is a work of art. These types of turbos provide fantastic drivability on the street with almost 0 lag. My car makes full boost (currently set at 11psi) at 2200rpms which generates 365ft/lbs of torque at 2800rpms.

The difficulty with this type of turbo is the flow capability for high hp cars (its not there). Plus, tuning the fuel delivery can be difficult when you are asking a car to go from 0-10psi in a matter of 100-300 rpms. This also can create boost spike which can have its own issues. Both problems are easily solved with he right components and tuning.

It took me over 8 months to finally get it right 5 years ago. The car has been perfect ever since. Results:

95 BMW M3 Stock =190rwhp 178ft/lbs
VATN turbo=11psi & 349rwhp 362 ft/lbs

I don't think anything that Porsche does is really that revolutionary. They just take good ideas from the past and perfect them. Erik's point is well taken .... making the system more complicated can take away from mod potential. It seems with every new car Porsche gives you something but takes away another. For example you got more power but more weight and less mod potential.

If anyone can make these turbos work it is porsche.

These types of turbos have traditionally been used on diesels correct? If it is difficult to make these turbos flow up top it seems that the aftermarket potential for the turbo will be curbed.

Shelby used this technology back in 1989 in a Shadow CSX.