924Board.org

[Raceboy]

Just finished it. I did it on my friends machining shop, used a 8.5 mm drill.
Mostly very easy to do, the toughest part is to make a start from the backside to get proper angle.
If I can get my hands on a cam, i'll take some close-ups of it.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[Diesel]

Bad Bad Bad.

[Raceboy]

What is? Drilling a hole?
No, I don't think so. Why? Because later style spindles are larger in diameter and if on earlier version it works, it will work on that too.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[Diesel]

Do you think you just made that spindle stronger or weaker?

[morghen]

no harm done i guess...the old ones had a hole trough them...i am thinking of drilling a hole into mine too...i need a spedo and a 944 gearbox is out of the question.

could you please post pictures and explications after you are done with it ?
_________________
Supercharger and EFI kits
https://www.the924.com

[gohim]

I have seen enough photos of failed 951 and 944 spindles and read enough messages about broken late model spindles to conclude that drilling and weakening late model spindles is a BAD IDEA.

Raceboy, since you already drilled yours,

Good Luck with that...

[Raceboy]

Diesel, do you think I'm an idiot? Yes, of course it became weaker, but not to a level where it would cause any bad results.
Anything CAN happen, even with non-drilled spindle.
Yeah,yeah, and everyone tells that running 17 or 18 inch wheels results in spindle failure too.
Guess what, I ran 17's last season with heavy tracking on 924 NA (!) axles and they did hold up very well. In fact I inspected them after swap to 5lugs and no ill effects. They do have holes there.
Or do you guys consider some Honda Civic axles stronger than Porsche ones? I personally don't, I've seen them and compared them, and almost every ricerguy who wants to earn some respects from the guys like himself, runs 18's or bigger. And they do fine.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[Diesel]

[morghen]

i dont think a small hole can cause that part to crack or anything....waiting on the photos
_________________
Supercharger and EFI kits
https://www.the924.com

[Raceboy]

[arx]

[Diesel]

You do realize the spindle is actually holding your freaking wheel on right? Did Porsche heat treat the spindle with the hole in it before or after the hole was drilled? Was the hole actually CAST into the spindle instead of being machined? Did the early spindles actually require a different grade of steel at manufacture time than the later ones? Do you know, because I sure don't. I do know one thing, modifying a steering part is a DUMB thing to do. I'm done with this thread, I just wanted to put my $.02 in just in case an inexperienced person stumbled onto this topic and was thinking about pulling the same stunt.
_________________
Dan Flanagan--2002 VW Jetta TDI, 83 Mercedes 300D,83 Mercedes Euro-240D

[gohim]

If you want to see some photos and read some posts about failed 951 spindles (with and without the hole drilled), go to the RennList Website, and do a search.

You will find that 951 spindles fail when tracked, EVEN WITHOUT HAVING THE HOLE DRILLED.

This leads me to the conclusion that if you actively and/or aggressively drive your car, drilling and further weakening the spindles is a bad idea.

Oversized wheels seems to aggravate the problem with failure of spindles (and front wheel hubs) according to some information I have seen and read in Excellence Magazine.

While failure of spindles and wheel hubs is fairly rare, I have no desire to be one of the "chosen" ones who are unlucky enough to have this happen to their cars.

[Raceboy]

I am user in Rennlist, and have seen many topics regarding this spindle failure. But, in most cases 964 turbo guys are complaining about the spindles and hubs failing on the track.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

[ic932]

hi read this with interest as im contemplating drilling out the spindle in order to keep the speedo drive.i think its pretty obvious to anybody,that based on statistical evidence we all take our lives into our hands by climbing into a car in the first place,that said NOBODY wants to increase the risk by tampering with such crucial parts.Could anybody please tell me an alternative suggestion to this problem.for example how did the 951 send the speed info to the speedometer......i am already running a 924S box am i right in beleiving that the later gearboxes play a role in speed calculation and ultimatly display?

dave.