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I'm putting these on my list of items to measure, so when I have the wheels off next, I can get it all done in one go.
I don't have measurements but I test fitted 19's on mine yesterday and they fit just fine. The 18" Aeros fit on the front but their inner barrel diameter is just a few mm too small to fit over the rears, so I'd imagine most all 19" wheels would fit.
Haven't put these on the car for good yet because there's a lip around the base of the center hub bore that prevents my wheels from mating flush to the surface of the hub (see second and third pic). Not sure if this is specific to just the Performance brakes, but I've ordered 5mm spacers with 70.5mm bore, which should be plenty to clear the ~3mm lip.
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Jedi2155
Model 3 has Arrived.
I noticed you're running a staggered setup on your P3D+, how are your 0-60 acceleration numbers on it?
I'll be mounting the wheels later this week. I'll make a thread comparing them to the 20's when I do.
I got 3.48 seconds (w/o rollout) on the stock 20's and a damp road last night at ~85% SoC, with an 11.81sec quarter mile.
At least there are two of them for redundancy. lol.
Tuned mass damper for NVH.
Those zip ties look like 100-200lbs rated each, it's not a problem.
FlatSix911
Porsche 918 Hybrid
I believe the upper control arms are plastic. I guess they were too light and they had to attach weightsAnyway the zip ties are just there to hold the weights until the glue dries.
Stamped steel with dampers... should have gone with forged aluminum
FlatSix911
Porsche 918 Hybrid
That pronounced raised lip may pose a problem for a number of aftermarket hub-centric wheels... best to check fitment
Daniel in SD
(supervised)
Some initial teardown said they were plastic. Seemed a little sketchy to me. I wonder if they were wrong or if they switched?Stamped steel with dampers... should have gone with forged aluminum
FlatSix911
Porsche 918 Hybrid
I thought you were kidding... take a look at the weld where the control arm meets the bushing.
Daniel in SD
(supervised)
Yeah I can't quite tell from that picture. Here's the plastic part from the LR teardown:I thought you were kidding... take a look at the weld where the control arm meets the bushing.
FlatSix911
Porsche 918 Hybrid
That must be some seriously strong FRP
That piece puts the composite in composite. The FRP is probably too brittle without the steel. I bet it's stronger and lighter than aluminum part.
Ok, took the wheels off again.
Upper arms are ferrous.
Rotors and rotor hats are ferrous
Front and rear calipers are assumed to be aluminum, as they are definitely non-ferrous.
Front brake info:
8" from center of hub to outer edge of caliper (horiz.)
8.25" from center of hub to furthest point of caliper
2.436" of friction surface
4.215" from center of hub to rotor hat
2.842" from rotor hat to edge of rotor
Rear brake info:
8.25" from center of hub to outer edge of caliper (horiz.)
8.375" from center of hub to furthest point of caliper
2.238" of friction surface
2.55" from rotor hat to edge of rotor
These are close estimates, and I may be off by a mm or 2.
Diameter of front rotor with these measurements is 358.5 mm, so it's likely that they are actually 355mm.
Diameter of rear rotor with these measurements is 343.6mm, so it's likely they are 340mm, unless I really goofed up and they're closer to 335mm.
Disclaimer: it was getting dark, and I don't have all the right tools for precise measurements.
Upper arms are ferrous.
Rotors and rotor hats are ferrous
Front and rear calipers are assumed to be aluminum, as they are definitely non-ferrous.
Front brake info:
8" from center of hub to outer edge of caliper (horiz.)
8.25" from center of hub to furthest point of caliper
2.436" of friction surface
4.215" from center of hub to rotor hat
2.842" from rotor hat to edge of rotor
Rear brake info:
8.25" from center of hub to outer edge of caliper (horiz.)
8.375" from center of hub to furthest point of caliper
2.238" of friction surface
2.55" from rotor hat to edge of rotor
These are close estimates, and I may be off by a mm or 2.
Diameter of front rotor with these measurements is 358.5 mm, so it's likely that they are actually 355mm.
Diameter of rear rotor with these measurements is 343.6mm, so it's likely they are 340mm, unless I really goofed up and they're closer to 335mm.
Disclaimer: it was getting dark, and I don't have all the right tools for precise measurements.
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Powered By Jay
Member
That pronounced raised lip may pose a problem for a number of aftermarket hub-centric wheels... best to check fitment
This is kind of a bummer.
This is awesome. I'd love measurements on your suspension height from the wheel cap to the top of the wheel fender. I started a thread on this with my data, and would be great to share.
Suspension Height - P3D vs. P3D+ vs. RWD
Also - my car has similar built weirdness, e.g., screws with no bolts on them in the same places as where you photographed them.
Suspension Height - P3D vs. P3D+ vs. RWD
Also - my car has similar built weirdness, e.g., screws with no bolts on them in the same places as where you photographed them.
Thank you for taking the time to do that. Really helpful info.
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That’s good news on the 19s. That lip is interesting. I inquired about some wheel options with one manufacturer and I’m not sure they are aware of that lip as their test fittings appear to have been on vehicles without the performance brakes.
Brian N
Member
That pronounced raised lip may pose a problem for a number of aftermarket hub-centric wheels... best to check fitment
Dang why did they do this? Is the regular non Performance hat rotor thicker? Is this why it’s only on the performance models?
That pronounced raised lip may pose a problem for a number of aftermarket hub-centric wheels... best to check fitment
Does the non-performance upgrade have this lip too? This is really annoying. I might remove my upgrade now.
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