Martian Wheels MW03

[Atraf]

I was expecting to get at least the same efficiency as the original 20'' but it seems maybe the difference is due to stickier tires. The PS4s on 19'' does not have the foam inside seem less efficient than the 20'' PS4s made for Tesla specifically. That's because also at lower speeds like 20mph I can see the difference in efficiency, at this speed the aerodynamics don't play such a big role. Maybe the solution is to find a tire with low rolling resistance.

It is, weight reduction is for acceleration gains, aerodynamic wheel profile is for high speed range gains and tires (width, height, weight and esp rolling resistance) are king for range efficiency.

But there's a trade of rolling resistance vs traction, I wouldn't want anything less than OEM tires in terms of traction, car is already at the edge of what's safe for less than perfect roads (unless if you drive very very conservatively)

 

[vladmury]

Today wanted to remove one wheel to check my winter setup, guess what martian wheel wont come off even with lugs removed. I noticed when I mounted them 3 weeks ago that are not going all the way and align with the hub, guess after mounting the lugs are completely stuck. Never had this issue with any other aftermarket wheel

 

[Sam1]

Today wanted to remove one wheel to check my winter setup, guess what martian wheel wont come off even with lugs removed. I noticed when I mounted them 3 weeks ago that are not going all the way and align with the hub, guess after mounting the lugs are completely stuck. Never had this issue with any other aftermarket wheel

You mean like the holes aren't symmetrical and the studs are catching? Not sure exactly what you're saying is sticking.

 

[vladmury]

You mean like the holes aren't symmetrical and the studs are catching? Not sure exactly what you're saying is sticking.

yes correct

 

[Sam1]

yes correct

Damn that is a serious issue, I've never even heard of a bore being off center before.

Is it possible that the holes for the studs are just not the same size? And that's what is throwing it off just enough to catch? Not sure what the stud holes size is on those wheels, if it's tight or loose.

 

[dsgerbc]

Pics of the lug seats please.
I find it _highly_ unlikely for the lug holes to be off. They are probably stuck on the hubcentric due to excess paint there.

 

[dmj080]

Today wanted to remove one wheel to check my winter setup, guess what martian wheel wont come off even with lugs removed. I noticed when I mounted them 3 weeks ago that are not going all the way and align with the hub, guess after mounting the lugs are completely stuck. Never had this issue with any other aftermarket wheel

I'm sure that this couldn;t be the issue, but did you remove the bolt that Tesla uses to hold the brake assembly together for installation? You don't need that bolt once the brakes are installed.

 

[dmj080]

Couple of quick picks after install. Very happy with the quality and color!

 

[Sam1]

yes correct

Any update on this? Am interested to hear what the possible cause was like gunk in the holes as dmj080 said, or if it was something more serious.

 

[SigNC]

Mine were very tight going on the hub. so tight in fact I took a wire brush to some of the small amount of rust that had built up on it and it seemed to make it easier to get the rim on.

 

[Sam1]

Mine were very tight going on the hub. so tight in fact I took a wire brush to some of the small amount of rust that had built up on it and it seemed to make it easier to get the rim on.

Guessing the wheels have a stud bore of 15mm if this is the case? Sort of curious on how much of the lug nut is seating if this is the case; this is the same issue I went through on the first set of wheels from that other company before they changed the design for everyone else.

 

[SigNC]

Guessing the wheels have a stud bore of 15mm if this is the case? Sort of curious on how much of the lug nut is seating if this is the case; this is the same issue I went through on the first set of wheels from that other company before they changed the design for everyone else.

They went on completely flush, just took some rocking. from what i saw the lugs were not the tight area.

 

[P3D-R]

Today wanted to remove one wheel to check my winter setup, guess what martian wheel wont come off even with lugs removed. I noticed when I mounted them 3 weeks ago that are not going all the way and align with the hub, guess after mounting the lugs are completely stuck. Never had this issue with any other aftermarket wheel

This generally happens at the hub area. Often times rust will develop from mineral deposits. You can leave a couple nuts on the wheel but backed off while still engaging at least 5mm or so. It's not an exact science. Then from the backside of the tire you can bang it with a rubber mallet in various places to get it to rock off. The nuts are there to prevent the wheel from flying off. Also make sure to use a wire brush to clean off the rust and put anti-seize on the hub protrusion area as well as studs to ensure this won't be an issue again. When I manufacture wheels I generally have the centerbore of the wheel slightly larger than the OEM CB so this isn't an issue. On my Giulia it's a 65.1 but the factory 19" wheels measured out to a 65.5 CB. just food for thought.

 

[vladmury]

I managed finally to take one wheel off after a lot of rocking , the center hub of the wheel seems to tight so when it mates with the rotor hub it will become very tight

 

[Sam1]

I managed finally to take one wheel off after a lot of rocking , the center hub of the wheel seems to tight so when it mates with the rotor hub it will become very tight

That makes much more sense than the lug holes being off

 

[dmj080]

I managed finally to take one wheel off after a lot of rocking , the center hub of the wheel seems to tight so when it mates with the rotor hub it will become very tight

The bolt between the two top studs is the bolt that I mentioned. Most after market wheels will need this bolt removed to seat correctly.

 

[vladmury]

You dont need to remove that, the wheel has a cut off out in that area so it does not interfere with the bolt.

 

[vladmury]

This looks grows on me, now need more efficient tires as PS4S are quite thirsty

 

[Sam1]

This looks grows on me, now need more efficient tires as PS4S are quite thirsty

Not sure it's the tires. before my wheels I was running 290wh/mi with the all season continentals @500 wear rating over 35,000 miles. New wheels have ps4s with a 300 wear rating and I'm seeing 289wh/mi over almost 5,000 miles.

 

[vladmury]

Can only be tires or wheel spoke design + ET28 offset. But I noticed even at 10-20 mph speeds it less efficient than the 20” OEM Michelin. At that speed the aerodynamic impact of the wheel is negligible.