Hub adaptor question

[bochnak]

bochnak, I know you're just quoting Skulte's website FAQ, but if a 1/4" loose spacer is "safe", does that mean that a slip-on C5/C6 rotor is unsafe at .300"? They're essentially the same thing. I'm not advocating loose wheel spacers of any thickness, just trying to get everyone to think a little before condemning them.



As for your offset specs, they essentially drop from 20mm (.797") to 10mm (.394") in the front with the addition of a 10mm (.394") spacer. Similarly, the rear offset becomes 8mm (.315") in the back with a 12mm (.472") spacer. This means that your front and rear backspacing become approximately 4-3/8" and 5-1/16" respectively. Sorry about jockeying between english and metric.

I was just stating that the min thickness of an adapter is 3/4", and the potential isses with spacers.

I have seen adapters cheaper on ebay and googling "wheel adapters". I guess the major thing to look for is conical lug seats, which center the adapter better than a counterbore.

[MonzaRacer]

now if you can find lugs that go through the wheels and the spacer and stop at about 1/8 in from the rotor face AND the holes in the spacers have holes same size as the lug body diameter I have had good luck running them even when dragracing.
Also you should remeber to lube the studs with silver (nickle based) antiseize(as it doesnt promote over torqueing but does allow for a more uniform torque application.
I also like to make sure I use quality lugnuts that are fully threaded such as McGuards.
!/2 in studs should also be torqued (grade 8 actual studs) to 100 ft lbs and rechecked every 50 miles for the first 250 miles.
I have never had issues with loosening or coming loose do in this.
We ran a 5/8 thick spacer that was fitted to the rotor hub and the holes were sized for the lugnuts and the lugs fit down into them.
elcheapo spacers are not worth the dmage that can be done.

[Garymac69]

I'm helping a friend convert his '69 Camaro from Pro-street to Pro-touring. The rear-end is narrowed, so we need a backspacing of 3.375". The 18" wheel he wants to use has a minimum BS of 4". I see the Skultz company has a billet .625" spacer. He has long 1/2 ARP studs. What would be the pro/con of TIG welding the spacer to the wheel?