3 / bar is a good number for a gade ' 162 '
Thats how I did my 04
But the studs only stuck out an 1/8 of an inch or so
And I didn't get much hook up
Whether it was that or the SC3 or both
4000 miles... only 1 pull out and a couple bent bad enough I had to replace
If I did it again I'd go longer and all up the middle
You now have 108 and will be adding 54
Use what holes you have and add an extra one
Either in the middle or alternate outside (One side- then the other)
Don't worry about looks
Alternate from left to right to keep the track balanced
Just try and create as many new scratch lines as possible
A perfect stud job would have every single stud cutting it's own line
And make sure the tunnel protectors are sufficeint!
My 05 X is a short track and the guy who owned it the first year
pulled all the studs out before I got it ?
So what I did was 3 in the middle, the two existing holes and an extra one
Using longer studs so they stick out 3/8 to 1/2"
Then alternating side to side on the ouside with slightly shorter ones.
Theory being, I'll get some traction from the outside
but allowing the track to pivot easier for turning.
I'm left with 27 empty holes but I don't care.
I can't wait to try this setup with the SC4