The 370Z Weight Reduction Thread

[M.Bonanni]

Originally Posted by 370zForever

Hey guys, got some great info on aerodynamics. APR performance has their front wind splitters that give added traction and downforce. No idea about weight savings, but I do know that you can send APR info about you bumper and they will send you a custom wind splitter designed for your car. About $340 and $850 for a honeycomb splitter made from carbon fiber, fiberglass, and nomex honeycomb. The honeycomb splitter is stronger and is very light. The other cool aerodynamic part that has come out is the Evo-R rear diffuser. The diffuser should work with the front splitter and the underbody to create good airflow and suck the car to the ground for added downforce and stability at high speeds. The diffuser looks like it was designed for style, but it does have aerodynamic effects. $389 for the rear diffuser. I really like these offers and want to get them. I, however, do not want to buy a bigger wing pack to work with the diffuser and splitter. I want the added performance from the wing, but I really cannot have a bigger wing. The problem with that is that the standard wing is not designed to work with diffusers to maximize downforce and airflow. However, that is not a big issue. The other thing is that the Z does not have a really flat underbody to maximize airflow, but it looks sufficient. I like the packages for the diffuser and the splitter, but I'd like some input from you guys.

First off, an APR splitter wont save any weight since you aren't replacing anything, you are just adding it to the car. It is a great way to get some downforce on the front end though.

The EVO-R rear diffuser is for looks only. It does not offer any aerodynamic gains. It does not extend underneath the car at all. A rear diffuser that goes forward underneath the car (towards the rear axle line) will offer aerodynamic advantages, but the EVO-R piece is not actually a diffuser by definition.

Also this is not the right thread for this. None of the above mentioned modifications will reduce any weight on your car since they are all add-on parts, not replacment parts. Start a good aero debate thread in the track/autocross forum .