Drilling 300zx rotors for 4 lug (tool?) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Bleakley · 07-07-2019, 08:12 PM

How has everyone been drilling out their 300zx rotors to fit their 4 lug car?
I’m doing ANOTHER 300zx brake swap on a car I bought. However, this time I’m burying it all under the stock rims using the 26mm brakes.
Autozone rotors come 5-lug, I need em 4-lug. My idea was to buy a hub from Autozone and use that as my guide (take the lugs out, put the hub over the 300zx rotor and use the lug holes as my guides). My fear though is if that’ll be a tight enough centering tool.
Other idea was to turn down pipe at work to make a real tight fit and center an old 4-lug rotor over the new 5-lug rotors.

If I end up making a tool. Figured I’d see if any of you guys want some to make your lives easier? Not even sure what I would charge to be honest.
But yeah, if anyone has better ideas, I need to hear em.

Kingtal0n · 07-07-2019, 09:13 PM

better ideas?

5-lug conversion lol

alright, falling out of chair now

***S14DB*** · 07-07-2019, 09:35 PM

Clamp the old rotor to the new one. Wheel face to wheel face. 3-4 clamps around on the friction surface. Line up one lug hole on both and make sure they are both centered on the hub hole. Use the old 4 lug rotor as a drill guide.

*afishysilvia* · 07-07-2019, 10:14 PM

Better idea, get 88rotors 300zx drilled conversion rotors.

Bleakley · 07-08-2019, 02:34 AM

Quote:

Originally Posted by S14DB

Clamp the old rotor to the new one. Wheel face to wheel face. 3-4 clamps around on the friction surface. Line up one lug hole on both and make sure they are both centered on the hub hole. Use the old 4 lug rotor as a drill guide.

Saw this. Punching just 3 holes right? If I do it that way, I’d throw the rotor a little out of balance. Or is it such little material it’s not much to worry about?
Thanks for the reply.

Quote:

Originally Posted by afishysilvia

Better idea, get 88rotors 300zx drilled conversion rotors.

Conversion rotors is good idea / tempting. Thank you.

speedingmofa · 07-08-2019, 02:46 AM

Quote:

Originally Posted by Bleakley

Saw this. Punching just 3 holes right? If I do it that way, I’d throw the rotor a little out of balance. Or is it such little material it’s not much to worry about?
Thanks for the reply.

Conversion rotors is good idea / tempting. Thank you.

Been done a gazilion times.. It's so close to the center, it shouldn't do much to the balance.
Just drill, best is to user a centering drill and a drill press

jedi03 · 07-08-2019, 07:31 AM

+1 on drill press! great idea on using the old rotor too, uncle and i measured mine for the one and only time i did re-drill...5 lug was so worth the money and less hassle!

*TheRealSy90* · 07-09-2019, 05:12 PM

Just drill the damn holes the rotor is hubcentric not lugcentric it shouldn't matter.

Bleakley · 07-09-2019, 07:18 PM

I understand the rotor is hubcentric (why else would I have suggested turning down a pipe so it’s same size as hub ring for rotor. Lol.) Was mainly curious if people had out of balance / vibration issues with drilling the rotors, but I guess not. Seems like everyone and their cousin is just punching the 3 holes in the rotors the more I search.
Keeping it simple works for me for now I guess. Thanks.

rawgarage · 07-09-2019, 07:20 PM

drill press...and call it a day

*brndck* · 07-10-2019, 08:39 AM

welp people used to drill 4lug rotors to 5lug pattern, so I can't imagine it would give you too much headache to drill 5lug rotors to 4lug pattern.

Bleakley · 07-10-2019, 10:16 AM

Just me overthinking / worrying bout nothing I guess. Thanks again guys.

07-07-2019, 08:12 PM	#1
Bleakley Zilvia Addict Join Date: Apr 2011 Location: Near Pittsburgh, PA Posts: 634 Trader Rating: (1) Feedback Score: 1 reviews	Drilling 300zx rotors for 4 lug (tool?) How has everyone been drilling out their 300zx rotors to fit their 4 lug car? I’m doing ANOTHER 300zx brake swap on a car I bought. However, this time I’m burying it all under the stock rims using the 26mm brakes. Autozone rotors come 5-lug, I need em 4-lug. My idea was to buy a hub from Autozone and use that as my guide (take the lugs out, put the hub over the 300zx rotor and use the lug holes as my guides). My fear though is if that’ll be a tight enough centering tool. Other idea was to turn down pipe at work to make a real tight fit and center an old 4-lug rotor over the new 5-lug rotors. If I end up making a tool. Figured I’d see if any of you guys want some to make your lives easier? Not even sure what I would charge to be honest. But yeah, if anyone has better ideas, I need to hear em.

07-07-2019, 09:35 PM	#3
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Clamp the old rotor to the new one. Wheel face to wheel face. 3-4 clamps around on the friction surface. Line up one lug hole on both and make sure they are both centered on the hub hole. Use the old 4 lug rotor as a drill guide. __________________ Comments should be taken as Opinions not as Statements of Fact

07-07-2019, 10:14 PM	#4
afishysilvia Premium Member Join Date: Jan 2010 Location: Cali Posts: 3,372 Trader Rating: (30) Rides Gallery: afishysilvia Feedback Score: 30 reviews	Better idea, get 88rotors 300zx drilled conversion rotors. __________________ Dont be a pussy...Leave your name

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

07-07-2019, 09:13 PM	#2
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	better ideas? 5-lug conversion lol alright, falling out of chair now

07-08-2019, 07:31 AM	#7
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,784 Trader Rating: (8) Feedback Score: 8 reviews	+1 on drill press! great idea on using the old rotor too, uncle and i measured mine for the one and only time i did re-drill...5 lug was so worth the money and less hassle!

07-09-2019, 07:18 PM	#9
Bleakley Zilvia Addict Join Date: Apr 2011 Location: Near Pittsburgh, PA Posts: 634 Trader Rating: (1) Feedback Score: 1 reviews	I understand the rotor is hubcentric (why else would I have suggested turning down a pipe so it’s same size as hub ring for rotor. Lol.) Was mainly curious if people had out of balance / vibration issues with drilling the rotors, but I guess not. Seems like everyone and their cousin is just punching the 3 holes in the rotors the more I search. Keeping it simple works for me for now I guess. Thanks.

07-09-2019, 07:20 PM	#10
rawgarage Banned from the Marketplace Join Date: Oct 2007 Location: h o u s t o n Age: 32 Posts: 5,990 Trader Rating: (75) Feedback Score: 75 reviews	drill press...and call it a day

07-10-2019, 10:16 AM	#12
Bleakley Zilvia Addict Join Date: Apr 2011 Location: Near Pittsburgh, PA Posts: 634 Trader Rating: (1) Feedback Score: 1 reviews	Just me overthinking / worrying bout nothing I guess. Thanks again guys.