You have got to watch this!

[r3drckt]

The rear diffuser is only part of the equation. The exposed wheels are most likely causing the drastic slow down

 

[Justin]

I might. I know it's expensive just trying to figure out if its worth it. Maybe someone who made there own rear diffuser will chime in and tell we what benefits they felt from it.

 

[Fozda]

I'm interested in this diffuser. How would I go about getting one from 9lives? Would they need me to give them measurements for it or will they just make a copy of the one they already made. Do you guys think that this would really help with the cars aero. If I'm doing a 100 and let off the gas my car slows down like I'm hitting the brakes.

Like r3drckt said, the rear underside is very small part of that equation. Aside from the lack of aerodynamics, the car is also super light so there's far less momentum to push you through all of that air and it's a manual so as soon as you let off the throttle the engine is slowing you down too. I'd be willing to bet you'd slow down far less quickly if you pushed the clutch in or pulled it out of gear.

 

[Justin]

I think you guys are right. I should probably just save my cash. No point in spending a bunch of money on just a rear diffuser because there are so many other factors that are affecting the aero that I will never address. Thanks for the input guys I appreciate it.

 

[r3drckt]

The best aero mod you could do is a front splitter and plate the entire bottom of the car so there’s no spots to catch air (front heat exchanger relocate to the back upright or side). This will help keep the downforce on the front and the low pressure under the car

 

[TheNuker]

I think you guys are right. I should probably just save my cash. No point in spending a bunch of money on just a rear diffuser because there are so many other factors that are affecting the aero that I will never address. Thanks for the input guys I appreciate it.

My first goblin felt like I was hitting the brakes every time I let off the gas, I had it tuned when I installed the ZZP stage 3 kit for the SS/SC and it coasted like a "Normal" manual ever since.

Nuker-

 

[ctuinstra]

My first goblin felt like I was hitting the brakes every time I let off the gas, I had it tuned when I installed the ZZP stage 3 kit for the SS/SC and it coasted like a "Normal" manual ever since.

Nuker-

Too bad we can’t get ahold of that tune file so we could see how they did it. I wonder if that’s part of the DFCO.