dubfordstyling

Hi All,

I have a set of wheels that i'm desperate to get on my 964. Trouble is they're completely wrong for the car however i'm not giving up just yet! I know from my VW days that an option is to get them plugged and redrilled but as these wheels have exposed lug holes its going to end up being a mammoth job.

Now, when looking at the amount of meat on the hubs of a 964 its got me thinking... In the spaces between the studs, could I get them redrilled to 5x114.3 which my new wheels are, remove the original studs and use bolts to get them on?





Thanks in advance,

Angus

s4magman

Once you have the hubs drilled - what about the rotors? I'm curious to see what wheels would make someone go through this much trouble. There are so many wheel options for Porsche and you can get custom made ones - I don't think I would ever muck with the hubs for a set of wheels as it seems to risky and too expensive should you fail.

Good luck and show us some pics!

IanR

It may be possible to re-drill the front hubs, as the hub is round (can't see it in your photos as it's inside the disk bell). However, the rear hubs are kind of star-shaped, with the wheel studs mounted in each of the (short) arms - I can't see there being any room. Also note that standard PCD is 130 - you'd be trying to move the studs in by nearly 8mm.

Indycam

You didn't ask or say , but that will not stop me , off set & back space ?
Have you calculated all that out ?

"remove the original studs and use bolts to get them on?"
It's rare to have the meat for threads where studs were .
If you do convert over 5x114.3 , why not stay with studs ?

Some wheels will not take a redrilling , some will .
Have you thought about redoing the wheels to fit the stock porsche bolt pattern ?

dubfordstyling

Yes I've seen the rears and thought they might be tricky.

dubfordstyling

Yes the calculations of backspace is not an issue as they are 3 piece wheels so I can get different barrels and different lips to fit. The offset is the problem hence having to alter the PCD on the wheels or hubs. As the wheels have a low offset using PCD adapters which are a minimum of 15mm thick will lower my offset even more.

Yes I could have studs just think it maybe easier when redrilling hubs and rotors to use bolts but whichever really?

Redrilling and plugging is the only option at the moment but as they have exposed lug holes and dont have flat backs it's going to be a hell of a job.

Indycam

There are big studs , stock car size , if you drill everything oversize and offset from stock , you can get things to match up sometimes .
Speedway sells a set of 5/8 studs and nuts "cheap" .
http://www.speedwaymotors.com/Wheel-...ngth,5483.html

Indycam

I don't feel comfortable with this , have you actually done the work to make sure that you can have everything line up ?

If the hub doesn't have the meat for enough threads the bolt option is a non starter . After drilling new bolt holes , the bolt holes need to be tapped , that is not a "whichever really" thing . Every machining step when doing bolt holes is set in stone , not so much with stud holes .

Drilling a hole offset and larger should not be a problem for a machinest with a milling machine .

Mr.Alex

Either have them re-drilled and filled so there are no holes, or get adapters to fit the new PCD.

Altering the hub is a bad idea, and then if you want porsche wheels again you have to convert back,

Ken D

So every time you have a major brake service with rotor replacements you'll have to re-drill the rotor hats? Unless you plan to go with custom two-piece rotors.

dubfordstyling

Which bit don't you feel comfortable with? The width at the back can be made narrower or wider dependant on the barrel and on the front of the wheel can also be made narrower of wider by changing the lip

The drilling part is not too much of a problem, its the fact that the original lug holes will have to have a plug made, welded up, welds ground down before the drilling can be done - thats the tricky bit

dubfordstyling

Cant use PCD converters as it will lower the offset otherwise that would be my 1st choice

s4magman

I guess you could get rotors with removable hats - with two sets of hats you could switch back and forth depending on the wheel you use.

deutschland-dobson

I've been through all these options before trying to fit the LMs bud. Its hard to fit a car to a set of wheels sometimes

What are you trying to fit and ill give you my thoughts if you need?

Drop me a PM if you need.

Chris

dubfordstyling

Now thats a thought!