wheel refinishing? - Page 9 - ZR-1 Net Registry Forums

-=Jeff=- · 12-02-2013

Yes, that would be preferred

WVZR-1 · 12-02-2013

Quote:

Originally Posted by -=Jeff=-

bolt on Right says "R O" and "TITAN"

both are M6 as far as I can tell, one is about 28-29mm the other 32mm

Found some chrome plated ones on eBay for $60 per wheel r $220 for all 4. I doubt I can get these parts from Speedline, not sure where else to look

They appear to have different shoulder dimensions but of course that could be maybe a "visual" thing from the snapshot. You need to confirm which is correct - I assumed the 120 count because they were the majority but maybe that's wrong. What was the hex size of the nuts? M6 I believe would be M10 and M7 would be M11. I don't know that you could rely on those but I believe anything else would be a specialty dimension. The heads of the bolts appear to be different also, 6pt vs. 12pt, yes/no? Were the nuts also 12pt? You didn't mention. I believe you need to look seriously at M7 hardware.

M7 Titan here:

http://www.enha.eu/product_info.php/...32-titan.html/
Almost every M7 spec is displayed here and you could dimensionally match the flange diameter etc:

http://www.titanium-touch.de/shop/in...--nbsp-M7.html

A simple vernier answers most of your questions, M6 thread diameter would be less than 6mm and M7 would be 6mm +. Both are 1.0 pitch so the screw pitch gage is of no value. What's the bore dimension of the holes? Not the painted centers.

-=Jeff=- · 12-02-2013

You are right, these are M7.. Caliper shows just over 6mm on the diameter, head is 8mm 120 are 12pt and 40 are 6 point. I will check the barrel hole size tonight,

Now that I think about it, the but is 11mm also 12pt

-=Jeff=- · 12-02-2013

Another interesting thing..

many I find that are M7x32mm are chrome.. I was thinking Stainless would be good but

the Chrome are tensile strength of 12.9 while Stainless is 10.9

would 10.9 be okay?

WVZR-1 · 12-02-2013

I would think you would want to avoid the chrome and 10.9 is fine. The other thing to consider is the torque of these. Some/most I believe settle on a spec that is 17 - 20 lbft. When/if you see values greater than those I'd be somewhat skeptical.

Since time is maybe not an issue why not just post a WTB in the tire/wheels, autocross/road-racing sections of the CF with specs and a "snapshot". Someone may just have a couple handfuls of the "Titan" product you need for a match OR maybe knows "where to get"!

You should have enough information I'd think to do the WTB>

-=Jeff=- · 12-02-2013

well I found a set of Stainless for a good price, I might just go that route, but I will do a WTB on CF and see if anything happens..

GOLDCYLON · 12-02-2013

Quote:

Originally Posted by -=Jeff=-

Another interesting thing..

many I find that are M7x32mm are chrome.. I was thinking Stainless would be good but

the Chrome are tensile strength of 12.9 while Stainless is 10.9

would 10.9 be okay?

Id go with stainless due to pitting rust concerns in your neck of the woods. GC

-=Jeff=- · 12-02-2013

how do I tell if the original bolts were titanium or Stainless?

Next is to verify the flange size, some are 14.9 others are 12.9

I found a set of Stainless with the 12.9 flange, but need to measure mine at home

GOLDCYLON · 12-02-2013

Quote:

Originally Posted by -=Jeff=-

how do I tell if the original bolts were titanium or Stainless?

Next is to verify the flange size, some are 14.9 others are 12.9

I found a set of Stainless with the 12.9 flange, but need to measure mine at home

Gotta be stainless.. titanium would have cost a boat load still does to this day

-=Jeff=- · 12-02-2013

so If I go stainless I could just do one wheel to match it or get all new bolts nuts..

12-02-2013	#81
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? Yes, that would be preferred __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

12-02-2013	#83
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? You are right, these are M7.. Caliper shows just over 6mm on the diameter, head is 8mm 120 are 12pt and 40 are 6 point. I will check the barrel hole size tonight, Now that I think about it, the but is 11mm also 12pt __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

12-02-2013	#84
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? Another interesting thing.. many I find that are M7x32mm are chrome.. I was thinking Stainless would be good but the Chrome are tensile strength of 12.9 while Stainless is 10.9 would 10.9 be okay? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

12-02-2013	#85
WVZR-1 Join Date: Oct 2004 Posts: 1,890	Re: wheel refinishing? I would think you would want to avoid the chrome and 10.9 is fine. The other thing to consider is the torque of these. Some/most I believe settle on a spec that is 17 - 20 lbft. When/if you see values greater than those I'd be somewhat skeptical. Since time is maybe not an issue why not just post a WTB in the tire/wheels, autocross/road-racing sections of the CF with specs and a "snapshot". Someone may just have a couple handfuls of the "Titan" product you need for a match OR maybe knows "where to get"! You should have enough information I'd think to do the WTB>

12-02-2013	#86
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? well I found a set of Stainless for a good price, I might just go that route, but I will do a WTB on CF and see if anything happens.. __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

12-02-2013	#88
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? how do I tell if the original bolts were titanium or Stainless? Next is to verify the flange size, some are 14.9 others are 12.9 I found a set of Stainless with the 12.9 flange, but need to measure mine at home __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

12-02-2013	#90
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: wheel refinishing? so If I go stainless I could just do one wheel to match it or get all new bolts nuts.. __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978