Diablo Dilemma

3 minute(s) of a 72 minute read

Up!  http://forums.vwvortex.com/showthrea...veiling-in-NYC

....and

This is the pic from NRE of the actual turbos that are going on the Diablo. More to come..



Notice how they are like mirror images of each other. Symetrical twin turbos... that's their thing.

This is from the NRE website:

Symmetrical Turbochargers
Have you ever wondered... Why do all twin turbo applications use the same turbo on both sides? Why doesn’t the car builder just buy a left and right turbocharger and make it look symmetrical? Well at Nelson Racing Engines we’ve made a turbocharger breakthrough. We have just released our new patented NRE Symmetrical Mirror Image Turbochargers . For the last fifteen years we have been fighting packaging and installation problems associated with conventional twin turbo set ups. Up until now every twin turbo engine in exisistence has run a non-symmetrical turbocharger arrangement. This not only makes exhaust plumbing and intake plumbing unequal and the engine run unbalanced, but it translates into less reliability and power. while presenting an onslaught of packaging and installation problems. We have solved this with our new Mirror Image Turbochargers. Nelson Racing has been been flogging every turbo known to man for almost two decades, and of those, none were exactly what we wanted from a turbo. NRE started from a clean slate and designed the ultimate turbocharger. Every inch of this turbocharger is machined within .001 thousandths of an inch. There are no variations in castings or wheel design because we start from a billet part. We manufacture the turbine wheel from solid inconel. The compressor section is from a Solid 6061 blank, and we have virtually eliminated balance issues due to our proprietary manufacturing process of true concentric wheels. Aside from the performance you will gain running the industry's best Turbo, you will admire and appreciate the symmetrical balance of the Mirror Image Twin Turbos. Once you see how balanced and equal the engine looks, you will never go back to a conventional twin turbo set-up. Nelson Racing Engines Mirror Image Twin Turbos is the future - and the future is here

9-21-2011

In another couple of weeks, I'll have a bunch of pics of the turbos layed out in the engine bay.

These turbos also have some special valve that (as Tom Nelson explains) "shuts off half the turbo until the desired boost level is reached... so they'll spool up real nice".

I'm not entirely sure how that works, but it sounds pretty serious.