I said it before and i'll say it again. Include an inch of brake clearance at the hub!

How many wheels does it take to make a first run? Can the run consist of the various 17" sizes and offsets?

Can you go into a little more detail on this?

Not sure. It will depend on the construction mether adopted. If 3-piece then we could build any combination. If monoblock we might have to restrict sizes innitially.

I'll start w/ a standard Carrera/RS body/suspension and what I have used and seen used
front
8" is the maximum I've seen and used, ET25 to ET31, the lower ET will need more lip work, I use 8x17 ET25 and I shaved the lips completely off when I had 7x15 ET23.3 and 205/50 tires at extremely low ride height. It came in handy w/ the 8ET25 and 235/40 x17 tires. ET31 8" have less issue at the lip more at the strut housing, friends w/ race SC/Carreras and ETET30 leave the strut dust shield off or at least cut away w/ 245/40 tires

rear
I use 9.5 x17 ET19, currently 255/40 tires but 275/40 in the past, the 275 requires that the passenger side oil line be relocated and the trailing arm bolts/nuts shaved, there is minimal clearance both at the trailing arm and shaved lip, ride height is somewhat compromised

Here is 8x18 ET30 245/35 9.5 x18ET20 285/30
http://forums.pelicanparts.com/uploa...1349104871.jpg

here is 8 ET25 235/40 9.5x17 ET19 275/40
http://forums.pelicanparts.com/uploa...1349105012.jpg

Thanks Bill. That's good info.

I'm thinking it'll be safer for everyone if you go 3-piece, especially if you can do hidden fasteners.

Sure. It's a standard thing for wheel manufacturers, but I'll splain it anyway.

If you put big brakes on a 911 the caliper extends outward past the plane of the hub. So, if the hub of the wheel was a simple flat piece of aluminum you could not bolt the wheel onto the hub.

If you take a standard Fuchs wheel and cut them apart and re-weld them into a 17, you would have this problem if you try to bolt it onto a car with big brakes.

This is alleviated by having a thicker hub flange on the wheel. You could think of it as a spacer except it's actually part of the wheel itself.

On the diagram below it's called caliper overhang.

993 brakes require about .75" or thereabouts.

H

http://forums.pelicanparts.com/uploa...1349129593.gif

Just my 2cents wrt brake clearance all the modern built up wheels I've seen in 911 o/s have squared off brake space which allows for most brake caliper setups, the room comes from the built up nature of the wheels

I use 993RS brakes, there are few larger options, on my 1976 Carrers 3.0 and the same on my 1995 993, the 911 8&9.5 x17 wheels have far more axial clearance than the 8.5 &10 x18 993 wheels

1976 wheels
http://forums.pelicanparts.com/uploa...1349132163.jpg


Clearance 8x17 & 9.5 x17 on 1976 C3, 3 piece
front
http://forums.pelicanparts.com/uploa...1349132529.jpg
rear

http://forums.pelicanparts.com/uploa...1349132546.jpg

clearance 8.5 & 10 x18 on 1995 993, 3 piece w/ hidden bolts
http://forums.pelicanparts.com/uploa...1349132663.jpg
http://forums.pelicanparts.com/uploa...1349132648.jpg

Any idea Paul if this is a "Go"? I need to order wheels at some point in the off season.

Not right now Plavan but it is moving through the works. I hope to know soon.

So the factory is proposing to make 17" wheels using the same process as the current 15" and 16" in the following specs:

7" +49
8" +30
9.5" +19
11" 0

As with the current range adjustments to these offsets would be available as an extra cost option.

Do you see any glaring omissions or any other size/offset we would require?

Prices are not yet set but I imagine they will be in line with the current offering but perhaps 17/16 more. Let's hope that's the case.

As I started all this it seems I may have an obligation to buy the first run. I hope all the enthusiasm shown in this thread proves genuine and I'm not just reading what I want to hear.

Does all this seem realistic?

I need a 10" and 9" in negative offsets, so I'm probably out. I can't fathom spending all that money on wheels that might not fit. :(

I have a question for Pelicans with 930s (or folks running 930 calipers). On a 930 running 9x16 Fuchs if you remove the factory rear spacer can you still mount the 9x16 wheel on the hub with no interference? Or does the back of the wheel hit the caliper with the factory spacer removed?

If the back of the 9x16 Fuchs does hit the turbo caliper with factory spacer removed does anyone know what the minimum spacer width is to allow the 9x16 Fuchs wheel to work with the turbo calipers?

Thanks for the info!

Paul - I would be interested in the 11" and 8" wheels in RSR finish for my project but it will be months before I buy anything. IF Pirelli releases the Corsa Classic P7 in 15" I could go that route but 17" gives a LOT more choices in tires in 315/335 and 245/255 widths..

Scott,

When these calipers are modified for non-930 trailing arms, the fins are typically milled off. So, it's a tight fit with a regular SC/Carrera trailing arm and no spacer. The spacer you'd need is quite thin because it only has to be slightly thicker than the depth of the fins on the caliper "face"

930 rear caliper modification for 911

Too much offset for a stock-body SC/Carrera. I'd need to run 19-21mm spacers both front and rear. Not too enticing for me.

For which sizes? 7&8x17 sure. For 8&9.5x17 no.

Great info. Thanks!

So I guess a 930 using stock unmodified 930 calipers would need a ~5mm spacer to fit the 11x17 et0 wheels on the rear.

Yes, I was talking about the 7 & 8 sizes.

I was thinking about these wheels for awhile yesterday, and also had a lengthy discussion with Paul about them. Now I'm thinking to really pull this off as best as possible these wheels should be available with the offsets listed below. I'm also thinking ~10mm of material should be added to the backs of the mounting surfaces (along with deeper lug holes like the 951 Fuchs) to allow more room for large brake calipers.

7" +49
7" +30 (a bit more offset vs. stock to make fitment up front a little easier)
8" +30
8" +10
9" +15
9.5" +19
10" 0
11" 0

Plavan - why the need for negative offset wheels?

BTW I have no affiliation with Braid or any other wheel manufacturer. I'm just a Porsche guy who happens to also be a wheel guy. I'd like to see a few more choices available for Fuchs style wheels.

Based on the offset list above I'd be a buyer for a set of 9" +15 and 10" 0. My second choice would be the 9.5" +19 and 11" 0.

I'm also thinking that the people who are serious about wanting to buy nice, durable, and somewhat affordable 17" Fuchs style wheels should post which sizes and offsets they are ready to buy.

:)

Note that the 951 Fuchs are not the only wheels that have the countersunk lug holes. The 930 16x9 has countersunk lug holes too.

I think to simplify the manufacturing, the 17x7 should be a 30mm offset like the 17x8 front wheel. Making a 27 in lieu of a 30 is really not worthwhile IMO when the clearance is not extremely critical with the 7 in. wheel? Just a thought. I agree that adding more positive offset to the 7 in. wheel is good because the typical +23.3mm Fuchs wheel is not a great fitment, especially with a tire that is 225 section width.

Oh my, this is gettiing confusing again. So many requirements to fill that I'm back on my three-piece fetish again.

Do bear in mind that whatever offsets we settle on they will likely be available with custom variations just like the current 15" and 16". We just need to find the sweet spot with as few widths as possible.

It looks like the Euromeisters are offered in

7x17 +23
8x17 +10
9x17 +15

Do they make anything wider?

Zuffenhaus are a little less than forthcoming with their specs, just list by application. Are these three-piece?

No, nothing wider.

Yes, 3-piece.

Or just have Braid manufacture the centers only, drilled with 20 holes compatible with BBS Motorsport rim halves, with 10mm additional material added to the back mounting surface of the wheel center. Let the buyers (or BraidUSA) finish the wheels themselves with whatever rim shell specs they want to use!

:D

Kaefer, like your idea for flexibility and strength/quality. BUT wouldn't that escalate the price?

I dunno. Paul needs to answer that one. My guess is maybe a little bit but since 20 bolt rim halves are plentiful from a few suppliers (new and used) I don't think cost would escalate too much.

Then again... I could be wrong!

I just meant negative offset, not positive for the REAR- I have -12 offset on my rear 15x10 right now. They fit. 0 might work for 17" wheels, but with 15" wheels/tires, there is not alot of room on the inside (Springplate adjustment screws, oil lines etc).

However, tire sidewall flex will not be a drastic with 17's as with 275/50 15" tires. So 0 offset looks like it would possibly work.

The fronts im pretty open with. I know 17x9 (+15) should fit, not sure about 17x 9.5 (+19) what do you think? I have RSR/ST flares up front.

+1

Sorry for lettting this thread go a bit quiet for a while. I was waiting for the factory to get back to me with prices etc and them blew my engine in our race car so a bit of scrambling ensued.

So the 17" BZ wheels are going to follow the same semi-forged manufacturing process as the current 15" and 16" range and prices are as follows.

17 x 7 $790
17 x 8 $842
17 x 9.5 $902
17 x 11 $989

The only details I haven't nailed down yet is what offsets to offer and when they will be available. Stay tuned.

I should mention, these are full retail pricing. I have in mind to offer a discounted price for the first batch of orders but I will have to talk with Pelican about the details of that of course.

Braid 16x10 RSR finish
 

Here is a picture of a Braid 16x10 in RSR finish. I ordered from Paul and received in 3 weeks. great service.http://forums.pelicanparts.com/uploa...1351526959.jpg

Bump

Quality alternative,




Mirage Intl - Other Race Components

Ticking timebombs....... No thanks.

Uses Old Fuch centers.....

Fuchs are old, and getting older. Prone to cracking like on my OEM 15x8 Fuch. I'll stick with new wheels.



http://forums.pelicanparts.com/uploa...1354585752.jpg

Hey guys,

I've been crunching more wheel specs for a couple buddies putting together widebody cars. Here's today's numbers:

Size and offset

8x17 +30
9x17 +15
9.5x17 +19
10x17 -15
11x17 0

Ideally additional mounting depth for big brakes (similar to the 951 and 9" 930 wheels, but deeper) would be designed in. Maybe 12mm of additional depth.

So... is anyone here interested in wheels with the above specs? It will probably take a first run of ~40 or so wheels for Braid to commit to making them.

Please keep in mind I have no affiliation with any wheel manufacturers. I'm just trying to help.

Will the 9x17's +15 fit on the front of my racecar (RSR front fenders/ "S" calipers)? I pretty sure the rear 10x17 -15 will on the rear.

For reference on my 930-flared SC racecar I have 17x10 wheels with an effective offset of (minus) -22mm. They are a true 10 in. wheel (11 in. wide edge-edge) with a +6mm offset. I run 28mm 930 spacers behind them which makes them effectively -22mm offset.

Incidentally I stacked some spacers for grins and with a 28mm + 21mm, I still clear the rear flares wearing a 275/40 tire.

I can't provide much insight on front wheel fitment because my car has lengthened A-arms, which throws off the offset calculation for a typical widebody-converted car.

Yes. Your car has the same front fenders as mine. 9x17 +15 is an easy fit. What tire size are you thinking about up front?

Try on a 930 9x16 +15 Fuchs if you want a general idea of fit!

Kevin,

Do you happen to have a pic of this? This is basically 10x17 -43 (!!!) ET with 275/40/17 tire. This setup puts the outer wheel lip 3mm past the original 11x15 -27 ET RSR setup.

Also how much negative camber were you running with this test fitment?

Thanks for the info,