14

Here is a view of the Verus Engineering strakes looking upward. The shape, mounting angles, and geometry of the strakes have all been determined with CFD analysis. 

You can see how the bottom of the GT-R is just about a flat bottom from the factory with lots of drag reducing plastic panels with venting to keep heat-sensitive under car parts cool. 

Here is a view of our modified diffuser looking forward from the throat of the diffuser outward.  The placement of the strakes increases the diffusion and generates vorticities that attach the air flow to the diffuser roof better and improve the flow in the car's wake.

The Verus carbon panel covers the one part of the GT-R's undercarriage that is not a flat bottom. This is where the exhaust system and driveshaft can create turbulence in the critical area at the entrance to the diffuser. 

Considering the great amount of time Nissan devoted to reducing drag on the GT-R, including a lot of small aero details that are not exactly cheap to implement, we find it odd that they didn't do anything to clean up this area of obvious improvement.  

The entire Verus Engineering aero system gives the GT-R a near race car like flat bottom and effective rear diffuser. 

The good thing is that the stock accessibility of under car components for service, adjustment, and repair remains the same.  If you have ever had to work on a flat-bottomed race car, you will know what we mean in that it can be a bitch to work on these cars, especially when doing chassis setup or major repairs at the track.

 

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Comments
Bradl3y76
Bradl3y76link
Tuesday, May 15, 2018 10:38 PM
I don't have their wares on my car currently, but will when I finish a few other areas in need of attention. Their stuff is fantastic.
Mike Kojima
Mike Kojimalink
Tuesday, May 15, 2018 11:48 PM
Yes they have CFD designed aero for many cars, not just the GT-R
ThisGuy
ThisGuylink
Wednesday, May 16, 2018 8:45 AM
Would you say the NACA ducts in the diffuser are to aid the top side of the diffuser or for cooling various items above the diffuser?
MattAtPlaton
MattAtPlatonlink
Wednesday, May 16, 2018 10:23 AM
Great products! Just careful with those speed bumps...
Mike Kojima
Mike Kojimalink
Wednesday, May 16, 2018 1:34 PM
@ThisGuy, they are to cool the CV joints, transaxles, exhaust, driveshaft joints
Rory
Rorylink
Friday, May 18, 2018 10:19 AM
When you guys plan to do some power on this car, bring the car over to us at SP Engineering :)
engineered
engineeredlink
Sunday, May 20, 2018 5:33 PM
Are you really sure you can feel the difference between .26 and .25 CoD?
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