James-man

I am not buying, but I will tell you there is a coolness factor here that only a few can deny.

Ispeed

I think it's cool (yes agreed unnecessary) and I'm for it, but there better be some GTS brakes in there with such cool wheels. It is dangerous to raise the bar like this, as it can get pretty expensive getting more stuff on the car up to that level of trickness.

SharkSkin

Looks pretty trick there, Rich. Opens up a whole selection of rims, and with all of that extra clearance you won't have to settle for wimpy GTS brakes...

Whether or not anyone else wants/likes the setup, I think it's pretty cool. Good luck with it!

blau928

The centerlock system uses a single nut to secure the wheels to the hub with the torque of the nut against the pressure disc clamping the assembley agaunst the hub. Same principle as with 5 or 4 lug nuts, but only one nut is used. The nut is required to be torqued to 425 lb/ft to hold the assembley in place.

Yes, there is also a safety pin that is on the spindle tip to prevent the nut backing out, and the spindle has an additional locking mechanism to also keep it in place.

Your axle nut that holds the hub and wheel and axle shaft on all 928's is secured in the same manner. Not many realize this but there is no safety pin on the axle nut holding the rear axle nut on the car. That is also torqued to 425 lb/ft and has not failed to date. Le Mans, and several other FIA class races use the system, and it has not failed to date. The Porsche Carrera GT, and now several of the others GT3, RSR, and RS will have centerlocking wheels as an option.

After all these years, using similar metallurgy, and in essence a similar design, I think it should be fine. Granted, Porsche uses aluminum, and I will use steel parts.

Granted, many may disagree about value, safety, and other things, as they have the right to do.

I think it's unique, safe enough for the track (proven over many years of motorsport and road use), so I will make the setup provided the front setup does not cost too much for a one off if no one wishes to buy some and help defray the cost.

Cheers,

blau928

Thanks for the compliment.

As far as brakes go, I don't know if you have seen the planned setup, but I have AP 6 piston with 15" front rotors, and AP 4 pistons with 14" rear rotors that I plan to put on the car.

This is partly the reason I also decided to do the centerlocks, as I wanted to use the BBS wheels, and they are one of the few 18' wheels that I can fit 15" rotors under and have the calipers clear the rims. They are Cup car wheels, that run a similar setup on the track.... With the right pads, you could also put PCCB's and have carbon brakes..... I prefer steel, but it can be done. You can get the Carbon rotors from the ZR1 and bolt them to a custom hat, and have carbon brakes if you wanted extra bling... Like I said, I prefer steel, so I will not put carbon rotors on the car...

One more thing about trick.... The car will have this under the hood... I think it's appropriate to have good brakes to stop the car as well as trick wheels....

blau928

Dave..! How are ya buddy..! Thanks for the kind words, I appreciate it. I already have brakes that would make the GTS look like bicycle grade... Just kidding.. However, as I mentioned, I'll be going to AP Racing calipers with 15" front and 14" rears on custom hats... I could even put 6 pistons all around if I wish... One step at a time though..

atb

Very Cool Richard,

Would be interested in knowing what you think the mod would cost.

Rob Edwards

Man, it might not be the most practical mod, and it might not make any fiscal sense, but I think it's great that you're making these. If no one trailblazes any new 928 mods, what trails are there for the rest of us to follow (or not, it's still a free country......)?

I'll go out on a limb and wager that anyone that bought a Panamera today lost more in depreciation driving it off the lot than Richard's spending on these hubs.

The mod I want is built-in air jacks. Anyone done that on a 928?

pcar928fan

Rob, I agree with you...

While this is not something I would do and I was somewhat critical of it at first...I LOVE the fact that there are SO MANY people out there still developing COOL STUFF for 928's! In fact there is more COOL 928 STUFF now than there has EVER BEEN BEFORE! This is ONE of those things...

Now, to your second point...I think the air jack could probably be installed for less money than this four corner center lock conversion! Probably fewer hassles and less new ground to break too I bet!

Oh, true on the Panamera statement too! Drive it off the lot and take 20% off what you paid INSTANTLY! That said, if you are looking to spend $100k+ on a four door car, this is one BAD A$$ CAR (performance wise)!

Dennis K

Richard -

Those look great! There's something about real BBS Motorsport wheels that just look right. There are similar mesh-style wheels like BBS LM's or Work Brombachers but if you're a keen racing fan, the single lug E28/E88 BBS's just have that authentic racing look. The only other 928 w/ single lugs I've seen is this one: http://www.928motorsports.com/heinrich.html

Got any pics of the six-piston AP Racing calipers?

blau928

Hi Dennis, Thanks for the encouragement, I appreciate it..! I agree with you on the BBS wheels, they are the real deal..

I took a look at the other 928 with centerlocks on Carl's site, and that one uses the larger nut and spindle combo like the GT2, and RSR, and earlier style spindle. I am going to use the newer style, with the smaller nut, similar to the one on the rear axle.

I have two sets of wheels, and one will be centerlock, and the other will be both centerlock, and 5 lug as I am having them drilled to put on the car in a week or so...

The caliper pics of a test fitment are attached... The fronts will be painted red like the rears. In addition, I might powdercoat the centers on the wheels body colour to offset the red calipers.... (minor details, but I have a lot of fine details that need to be done, so it adds up...)

Cheers,

Imo000

Nice work but is this street legal?

coast928

Why wouldn't it be? Porsche is already offering centerlock wheels as a $3,835 option for the current 911 Turbo model (19 inch RS Spyder Wheel with Center Lock) order no. 422. I admire those who say, "Why not, let's try it". Nothing ventured, nothing gained. That's why we have people like Carl Fausett, DR, and others who offer new & innovative products for our cars. More power to you Richard!

coast928

But anyway, even if it isn't exactly DOT approved, how many car enthusiasts and 928 owners alike do things to their street driven cars for the sake of style & aesthetics?

Imo000

Porsche's parts were tested to distruction to make sure they are safe for road use. These are not some esthetical parts, they hold the rims to the spindle. I admire Richard's enthusiasm, including the SC project but that's not the same as these custom spindles that (from a previous post by the OP) will be sold to others to use.