thread engagement
 

I searched and found a post about thread engagement, but somthing confuses me. I was hoping some one can tell me how many turns you guys get on a stock Rx7 with alloys.

With the FN01R-C's I get about 6.5 turns but I've found that the general rule is you want at least as much thread engagement as the stud is thick. So if I have 12mmx1.5 I'd want about 12/1.5=8, so I want 8 turns on the lugs. But I don't remember getting this.

And well was hoping to get some input here, I didn't add a spacer or anything but would using these wheels constitute needing longer studs?

thanks
Rip

Excellent rule to live by.

I agree.

thanks looks like I'm on the market for new studs. I'm thinking ARP.

What do you guys think is a good length?

I guess too much is better than too little, but I got the keyed nuts so they have a top to them, so I cant go to long.

stock is about 2.25" or about 57.2mm given that I need at least 2 more turns well thats about 2*1.5=3 more mm of length so 60.2mm should work.

So I'm looking for 60.2mm or 2 3/8.

but I'm guessing nothing is that exact amount. anyone have suggestions?

arp comes in 2.85" and 2.5" long

2.85" has a .485 knurl
2.5" has a .509 knurl

what is the stock knurl