Alright I just got some 5mm hubcentric spacers I wanna throw on all four wheels. try and get a bit more "flush" from my fn01s +35...has anyone ran 5mm spacers on the stock studs and no problems? or am I askin for trouble? The kit came with longer studs but if the stock studs are good I'm not gonna change em. I can get a lil more than 5 full turns on the lugs with the spacers...

 

I wouldn't risk the stock ones. There is a reason for them being in the kit. Safety. The further you get to the end of the threads of the studs the weaker they are. I have been a mechanic for over 20 years trust me I am pretty sure the stock ones were tested and failed to hold the weight and force put on them while driving/cornering.

 

I believe a good general rule of thumb is you should have thread engagement equal to 1D to 1.5D. D is the stud diameter.

D = 12mm
1D = 12mm
1.5D = 18mm

12mm/1.5mm pitch = 8 turns
18mm/1.5mm pitch = 12 turns

I personally would not use anything with only 5 turns on it and def consider it unsafe. My usual goal with wheel fitment/stud engagement on this car is 10 turns minimum. Also consider the lug nut material, if you are using aluminum the more threads the better. Steel will not be as sensitive to engagement or temperature.

HTH,

John

 

Yea I figured it be to risky to try..has anyone replaced their rear studs?? Or know where I can find a manual to do so?

 

Yea I figured it be to risky to try..has anyone replaced their rear studs?? Or know where I can find a manual to do so?