There is just barely clearance to the spring perch.
We removed the spring and shock and bumped the suspension to full compression to check for clearance.
At full compression, as the tire cambers-in, there is still clearance to the fender.
It’s a snug fit but there is no rubbing at full compression travel.
With the car on the ground out in the sunlight, we were very happy with the stance of the car.
The Michelin Track Connect App is a very helpful tool that accurately displays the tire’s temperatures and pressures and gives recommendations on adjusting pressures based off that data. This has the potential to be a very powerful tool.
At the time of this writing, the app itself does not have all of the tire models and sizing in its database and is limited to certain cars. I was not able to find my Cup 2 Connect tire size nor add it to my car’s profile because it was not an OEM size for that application. Instead, I selected a Porsche GT3 because it had the same width as my tires, even though the diameter was different. I would expect these little bugs to be worked out in the near future, but this inconvenience didn’t affect the functionality of the great system.
9 comments
Jesus Christ, that is one great-looking car! That massive rubber and functional stance really bring out the purpose of the NSX.
Thank you very much. It took a lot of planning and testing but i’m extremely happy with how everything came together visually and performance wise. Stay tuned for when we track test and compare it to standard 17/18 tire sizes!
Billy, you are making the best content out there on car websites right now. Keep it up. I also enjoyed seeing you in Dahm’s RX7 series!
Thank you for the kind words. I’m trying to put out unique and interesting content. Spread the word! 🙂
There will be more Project FD RX7 Restomod coming up soon, so keep an eye out!
Thanks for including the wheel and tire weights. Pretty amazing that you could add that much tire and still lose some unsprung weight.
Now you just need a twin-turbo and sequential gearbox to make the ultimate NSX!
“Plus, it raised the ride height by over an inch, which is not good for looks, handling, or performance.”
Do you have any idea if dropping an inch (going the other way) would help handling?
My logic as to why it may work, preserves suspension geometry, reduces unsprung weight, opens up possibility for cheap, fun tyres.
Reasons why it may not work, ground clearance.
The 1 inch smaller diameter tire will drop the ride height 0.5″ without any other change, which is a win-win. The ability to lower it another 0.5″ from a fender clearance standpoint will have benefits and negatives (lower center of gravity, but less ideal suspension geometry). Depending on the rest of the setup this can be good or bad, but typically it will still be good. Ground clearance isn’t an issue on track.
Thank you so much.
I’m a casual driver and would like to get a set of spare rims for track tyres. I’d like to go to 16″ down from my stock 17″ and maintain the tire sidewall height.
All this time I didn’t realize you were the wheelman with the Mustang too. Hopefully other tire manufacturers start offering stuff like this, namely Toyo as I’m required to run their tires in my series. It would be awesome to datalog tire temps and pressures over the course of a race.