A valid question indeed and a few reasons for why. The turbo in this position will offer no extra horsepower gains over a conventional twisted kit. The reason RCM etc would not offer this as a kit is there are too many extra modifications needed to fit the tutbo in the position..... reverse inlet, you have to move all the stock fuel lines, etc etc which makes them un viable as an off the shelf kit.... begs the question why on earth did I do it....
So the GT4094 is twin scroll. Arguably oversized for what I need... as chance would have it I happen to have one so I didn't have to pay out for a new turbo after I realised the old one was a touch deaded... becuase of this I wanted to run direct and short pipes with and few twists and turns as possible... that's where the V mount comes in and primarily the turbo position. I also wanted to run longer secondaries on the manifold to help more mid range power and this was a suitable location to allow me to do so. Also of you look at the down pipe coming out the rear turbine housing it is unimpeded as it's absolutely straight out the back of the turbo then drops down the passenger side. The GT40s do have problems with choking up when it comes to exhaust temps/gas flow so an attempt aid to help that.... If you twist the through 180 degrees but in the same position you can run an air box directly under the scoop (I'd you go back through the build you can see that was my original intent) but the trade off is a super tight down pipe and the GT40 would have suffered as a result... However a GT30 or 35 would not suffer as much from being placed there.....
In terms of heat no not at all. If you think about a typical twisted kit the turbine housing is sitting in a small space surrounded by the suspension turret, mater and clucth cylinders, aswell as the down pipe all bunched up in a corner with very little air movement around it.... at least the turbo big up there is in more 'empty' space.... I will likely at some stage change the scoop for a vent....
And the final reason.... pretty much just because it looks cool and I can...
So in short
- long secondaries on the manifold
- very short intercooler pipes
- very straight outlet on the exhaust
- looks cool
But ad I say you couldn't sell this as kit from a tuner perspective as it could never be a bolt up solution like the twisted kits are....
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