Quote:
Originally Posted by Mr_Eyo
Those aero panels are all in my wishlist but I've been hesitant to pull the trigger on them being skeptical on noticeable improvements considering total weight added.
Also suggest getting an aluminum driveshaft to save 12 pounds that is also not insignificant rotational driveline inertia reduction. I've done that, 4.56 FD, Wilwood BBK, trunk junk removal, and aftermarket wheels/tires and run E85 with the OFT tune and it is night and day compared to stock. More weight savings could be had by getting a lightweight water pump pulley, emptying the wiper fluid, and running with a low gas tank.
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Drag reduction actually adds up and makes a big improvement. I wouldn’t do it as a first mod but once the low hanging fruit is picked it’s definitely worth it. Just look at modern supercars. Most have just a flat under panel from bumper to bumper. Underbody drag reduction is awesome because it lowers drag but also increases down force. Usually you have to sacrifice one for the other.
The JDM panels only add about 2.5lbs. Trans tunnel covers about 4lbs but in a major drag area. Also spread evenly across the lowest point of car.
I dont have the numbers off the top of my head but just from those I think the added weight breaks even from drag reduction at 25mph and then is essentially equavalent to 100lbs weight reduction at 100mph.