F8 - Aftermarket Wheels and Tires | FerrariChat

F8 Aftermarket Wheels and Tires

Discussion in '458 Italia/488/F8' started by Themip, Oct 18, 2022.

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If you installed aftermarket wheels/tires, has your F8 had any ADS camera issues?

Poll closed Nov 17, 2022.
  1. Yes, ive had issues after installing aftermarket wheels/tires with the ADS camera.

    33.3%
  2. No, the service center is full of BS, aftermarket wheels/tires have not cause me any issues.

    66.7%
  1. Themip

    Themip Rookie

    Jun 12, 2021
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    Ok to start this out; Who has put aftermarket wheels and tires on their F8? Secondly has anyone had any issues with the ADS camera (reads speed limit signs from what i understand).

    What im getting at is I put Novitec wheels and a little bigger tires on these wheels which have made a huge difference in handling and better traction. But my ADS camera has been malfunctioning, which i actually have seen the go to dealer to get fixed warning pop up even before i put aftermarket wheels and tires on my car.

    So i went into San Fran Ferrari service and they are claiming my aftermarket wheels and tires have caused the issue (couple of cm higher or lower with aftermarket shoes). The service manager i talked to stated she could void my warranty as this is probably whats causing my camera to malfunction. She claims i need to put stock wheels and tires back on for testing for them to prove its not what is causing the issue. . . . To be fair the dealership is about 200 miles away so its not like a oh yea let me put them on and ill brb. But i find this quite ridiculous as ive never seen anyone else posting about this causing an issue and for them to possibly void my warranty because of this; kind of mind blowing.

    Has anyone had similar issues? any input would be fantastic thanks.
     
  2. Kent Adams

    Kent Adams F1 Rookie
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    Sep 11, 2020
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    After market tire and wheel sizes outside factory specs causes several issues with Ferrari's and other performance cars in this category. The ECU is calculated based on factory specs. The dealer is correct. This has been true for many years, probably since the F430 was introduced with its e-diff. If your wheels are the same size as factory, that probably won't cause any issues, however, if you are using tires larger than spec, that most definitely will.
     
  3. Themip

    Themip Rookie

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    interesting. . . i couldnt see the car being off by almost 1/10th of an inch (higher in the rear so front end is literally a little lower) as i just measured it with the stock tires on vs aftermarket wheels/tires, causing the camera which only reads speed limit signs any issues. guess they should invest in better camera's to read the speed limits if 1/10 of an inch causes it to malfunction. \

    Ive put almost 12k miles on my car with these wheels and tires and had no other issues. Just the camera which reads speed limit signs, which they are saying is because my car is 1/10th of an inch lower in the front end now over stock. . . and that may void my entire warranty lol
     
  4. Kent Adams

    Kent Adams F1 Rookie
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    #4 Kent Adams, Oct 18, 2022
    Last edited: Oct 18, 2022
    Your tire size may not be an issue, all I'm saying is it most definitely could be an issue for others with much larger tire sizes that are routinely put on Ferrari's to the detriment of all kinds of systems, the least of which to worry about is the camera reading a speed sign. Some issues won't show up until something breaks. For instance, larger tire sizes causes the traction control system to not operate within specs and as a result, it can overwork the components. It will seem like everything is fine until it isn't. If your traction system brakes and the dealer finds out of spec tires, your warranty could be voided. Is this your first Ferrari?
     
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  5. mdrums

    mdrums F1 Rookie

    Jun 11, 2006
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    What are your tire size specs now?
     
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  6. Kent Adams

    Kent Adams F1 Rookie
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    BTW, I meant to write before you drive another 200 miles try the following. Put the original tires and wheels back on, then do a hard reset of the ECU. I don't know how to reset the ECU in an F8 but I'm sure someone on Fchat knows the procedure, it might even be in the manual. Then drive it around to see if the problem fixed itself. That way, you'll know before you go back to the dealer with the original wheels and tires on your car. Resetting the ECU is important.
     
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  7. SeattleStew

    SeattleStew Formula 3
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    I doubt your wheels and tires are causing the problem. Consider that it reads signs that vary in height by multiple inches. How does your camera being at a different height change its ability to read a sign?

    For what it’s worth the front camera has stopped working on my 812 for awhile now. I haven’t noted it to my dealer, so it hasn’t been fixed. I’m on stock wheels.

    edit: and now that I think about it, I lowered my 812 and the camera worked for at least 6 months after that.
     
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  8. Themip

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    That’s exactly what I’m getting at. No way a couple of cm difference in either the front or rear would throw off a camera which reads numbers on signs that are all different heights.
     
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  9. Themip

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    245/30 21 front and 335/25 22 on rear.
     
  10. Themip

    Themip Rookie

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    I know they are extremely picky about stuff you put on your car. Just funny they didn’t say a thing about my exhaust but they brought up my wheels and tires. Lol. I was just blown away they would tell me I could possibly void my warranty because of that. And I understand if the mod causes the issues, but there is no way that caused my ADS camera to have issues.

    And second Ferrari. I had a 85 328gts which I sold about 10 years ago. Obviously never touched anything on that car.
     
  11. pdxjim488

    pdxjim488 Karting
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    Aug 25, 2018
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    Noob question. Is that the camera at windshield around the rear view mirror?
     
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  12. todd cloud

    todd cloud Formula 3

    Jun 21, 2019
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    I too am having trouble seeing how the camera malfunction could be related to aftermarket wheels and/or tires.

    To be precise, a service advisor cannot void your warranty. That is WAY above his/her pay grade.

    The more proper terminology is that Ferrari North America can decline to cover certain repair costs submitted on your behalf by a dealership (otherwise covered under warranty) due to vehicle modifications.
     
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  13. Themip

    Themip Rookie

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    yes indeed. looks like its inside of the spot where the mirror is mounted.
     
  14. Themip

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    They need to reset the ADS system to try and fix it. I guess it takes 8 hours to reset that system, so they wouldnt touch it without my stock wheels and tires on it since it would have to be warranty work. Which makes no sense as well, since i know the issue started right when i was driving it 200 miles home from the dealership the warning light came on for ADS camera malfunction. So ive really never even used the system except for maybe 50 miles or so, i saw the little speed limit signs pop up on my screen telling me when the limits changed. Since then ive put 12,000 miles on the car without using that system which i dont even need in the first place as i can use waze on carplay to tell me the speed limits lol.

    But obviously ill be putting the stock wheels and tires back on to go in for my yearly service next month and get the system reset and prove to them it will still malfunction with stock wheels and tires.
     
  15. Viperjoe

    Viperjoe F1 Rookie
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    Can't you simply turn the ADS Camera off and be done with the whole issue? My car has been lowered (~ 1" BTW) and I haven't had any ADS related issues. Of course, one of the very first things I did after the car was delivered was to turn off the ADS system.
     
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  16. Themip

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    Ah yes! It is turned off. BUT everytime i start the car it has the popup for 60 seconds which says ADS Failure, See Dealership for Service. Takes up majority of the left LCD Screen.

    And after i clear the screen it still has the ADS Symbol which stays on the screen permanently.
     
  17. Kent Adams

    Kent Adams F1 Rookie
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    This may sound like a dumb question, but have you looked at your fuse box for a blown fuse?
     
  18. Themip

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    I haven’t! I don’t even know where the fuse box is lol. I guess I could figure out what fuse runs the ADS and check it out!
     
  19. Viperjoe

    Viperjoe F1 Rookie
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    I would try switching the ADS back on, and then try switching it off again. The electronics in modern F cars are a complex and erratic.
     
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  20. Themip

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    I will try. Even with it off it says its still malfunctioning though. But ill give it a shot.
     
  21. mdrums

    mdrums F1 Rookie

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    Posted this basically on another thread but this info has been posted by others many times before and search on this forum is tough. I come from over a decade of track days, racing etc so I'm a tech performance type.... so in a nutshell.... since your car is on stock springs the cars height with the larger wheels/tires you are riding around 1.4" higher than stock. So yes your camera is probably not tracking correctly. Suspension geometry is off now.

    The stock overall tire dimension with 20" wheels with stock tires are:
    26.8" FRONT Diameter (top of tire to bottom fyi)
    27.2" REAR Diameter

    21/22" wheels/tires too have are:
    255/35/21 FRONT which is 28.1" diameter
    335/25/22 FRONT which is 28.6" diameter.

    A little bit of other info....about front to rear diameter difference. Stock tires are a .4" difference between overall diameter between front and rear for stock sizes. So as long as you stay close to this .4" overall diameter difference ABS or Traction Control and how the ECU controls power in the various Manettino settings will work as designed. You are fine for these things with the tire sizes you have.....but there's more to think about-

    The overall diameter with your 21/22" set up is also 1.4" taller than stock. Your car not only sits higher...This changes the final drive gear ratio due to taller tires and not in a good way for performance. The added weight of larger wheels and tires plus a taller rear tire will affect acceleration performance. Some care about ultimate performance some don't. All up to you.
     
  22. Themip

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    Yes indeed the overall height is higher, but like I said the slant of the car is only off by 1/10th of an inch .4in vs .5in now difference from front to rear ride height difference. And road signs are all different heights and road surfaces are all different slope. So makes no sense why this would make the front camera malfunction. . . And the fact that this wasn’t working when I had stock wheels and tires on means it absolutely wasn’t that.

    and yes I get that. At 214 on my Speedo I had two gps units running showing I was going 220.8 and 221.1 mph. So the Speedo is definitely off. But my 0-60 also went down to a 2.62 second avg which I have been able to repeat multiple times. Stock I was doing a 2.84 0-60. I also had the exhaust installed so that added approximately 37hp and 22ft/lbs. but the traction issues have been completely solved with the 335’s. Main issue I had was traction on 0-60 runs.

    novitec wheels and the tires I chose together are slightly lighter if I recall but I can’t find the specs on my wheels/tires. I will weigh them tomorrow.

    but yes I understand everything you have said. But I feel there’s no way a .1 or 1/10th of an inch change in the slope of vehicle can affect a camera that reads road signs of all shapes and sizes and heights.
     
  23. SeattleStew

    SeattleStew Formula 3
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    Ferrari cameras are so sensitive they can’t read signs up or down hill apparently. Or if the signs aren’t at the exact millimeter of where it expects them, or if the lights different, or or or.

    If his camera was working but ‘couldn’t’ read signs because of geometry, it simply wouldn’t read the signs. He’s having an actual error, not just it’s simply not reading signs. There’s a large difference here between the camera working and not detecting, and not working because it’s had a malfunction. His wheels and tires aren’t going to cause the system to throw a malfunction code for the camera
     
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  24. mdrums

    mdrums F1 Rookie

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    Put stock wheels on and see if camera works… if it does then you know the issue, if it doesn’t work still then take the car to the dealer for warranty.
     
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  25. Themip

    Themip Rookie

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    I concur 100%
     
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