We realize that it can be tough to match what rear wing goes best with our front diffusers or what front diffusers to get to match your existing wing. We scoured the internet for rear wings with publicly availably CFD data and used the information to match common applications. We made sure the CFD data provided made sense and made notes below when it was a little confusing. We are here to help. Here are some BROAD brush strokes to help point you in the right direction. We're assuming well-constructed splitters, moderate in size with our small diffusers and larger with our large diffusers. We're assuming a 3-4" splitter height. We're assuming fender venting. We're assuming no rear diffuser. We're assuming a lot of things but the suggestions below will get you on the dart board. From there you can tweak to get that bullseye. The most critical detail to note going in, weight distribution is most important! Your drivetrain layout doesn't really matter, but these examples can be useful. Without further ado; read, enjoy and ask questions! FWD: 65% Front / 35% Rear Weight Distribution Small Front Diffusers APR GTC-200: This little wing is extremely efficient and usable in this application. That being said, it will be at the upper range of its max performance, meaning any increase in front downforce will render the wing unsuitable. DATA Nine Lives Racing Wang: The data provided by Nine Lives is a little sparse as width isn't included in their figures. That being said, assuming the CFD is used on a large wing width, the downforce numbers are realistic and leave room for future aero upgrades. Especially when a Gurney flap upgrade is made. A good choice indeed. DATA APR GT-250: The GT-250 is an excellent match in this application. Not quite as efficient as the GTC-200 but it will still have plenty of extra performance left for increases in front downforce. DATA Large Front Diffuser- Nine Lives Racing Wang: I think this wing would work well in this application with a larger Gurney Flap option. There would be a little headroom left for future upgrades. DATA APR GT-250: The GT-250 is usable in this application with a little room to spare. Because using this wing would require it to run at a higher angle of attack, efficiency drops off slightly. With the Gurney Flap option, this wing is perfectly viable in this application. DATA AJ Hartman Apex 8 Single Element: A single element, 8" chord wing with great efficiency. It's performance is similar to the GTC-300 and Kognition Designs Wing, with just a touch less initial downforce. This makes sense as it has a slightly smaller footprint. An excellent choice for this application. DATA Kognition Designs: The CFD data on this wing is confusing. The base downforce levels seem realistic but the drag numbers seem too low and its ability to linearly increase downforce at high angles makes me think that everything above 10 degrees should be taken with a grain of salt. Efficient for this application with room to grow in the future, thumbs up. DATA APR GTC-300: The GTC-300 is a gem of a wing. Extremely efficient and just at the beginning of its usability in this application. What that means is room for large increases in front downforce in the future. DATA APR GT-1000: Nearly as efficient at the GTC-300 in this application, the GT-1000 might be overkill but it comes with an extreme amount of headroom. This could be the last wing you need for FWD applications, regardless of how much front downforce you make. DATA AWD: 60% Front / 40% Rear Weight Distribution Small Front Diffusers Nine Lives Racing Wang: A good choice to match our small front diffusers in this application. Right in the meat of its performance capabilities, likely pretty efficient, particularly without the Gurney Flap option. Purchasing the Gurney Flap later would give additional room for performance in the future. DATA APR GT-250: Another great option, with plenty of room for growth, particularly with the Gurney Flap option later on down the line. The headroom on this wing in this application is excellent. DATA AJ Hartman Apex 8 Single Element: Extremely efficient in this application and with plenty of room for upgraded front downforce in the future. Great fit in this case. DATA Large Front Diffusers- APR GT-250: Right at the very edge of what I'd consider usable. Efficiency suffers compared to more modest wing angles. The Gurney Flap option would be mandatory and there is no margin for safety if your aerodynamic balance is too far forward. DATA Kognition Designs: Because I don't trust the data above 10 degrees, I would say this falls into the same category as the GT-250 in this application. We have real world usage of this wing working in a similar weight distribution range but I'd be cautious with any front aero changes. DATA AJ Hartman Apex 8 Single Element: While this wing has less initial downforce than the Kognition wing, at higher angles, it performs better. The data is from a more trusted source as well, so I think it would be a pretty good choice for this application. There is moderate room for performance increase in the future as well. DATA Nine Live Racing Wang-Dual Element: A good choice for this application as well. My only concern would be the small working range of adjustment this wing has. While there might be some room for future front aero improvement, the window isn't huge. DATA APR GTC-300: A good, safe choice wing for this application. Still efficient with room for improvements in front downforce. I like this choice in this application as it has a good cost savings vs. jumping to a multi-element wing. DATA APR GT-1000: Nice and efficient in this application with large room for future aero improvements. This is the safest wing choice for this weight distribution in my opinion. DATA RWD: 50% Front / 50% Rear Weight Distribution Small Front Diffusers … Continue reading Which front diffuser goes with which wing and vice-versa?
