New titanium bolts
06-16-2014, 03:58 AM
#2
Rennlist Member
Where did you get them from? Minds sharing? Cost? Why did you change them out?
06-16-2014, 07:50 PM
#3
Rennlist Member
They look great but are they of any value?
30 grams (which is the weight saved per bolt) is just over 1 ounce. So that's 5 ounces per wheel, which is about 1/3 pound. Meanwhile the wheel and tire weigh more than 40 pounds.
??? Am I missing something?
30 grams (which is the weight saved per bolt) is just over 1 ounce. So that's 5 ounces per wheel, which is about 1/3 pound. Meanwhile the wheel and tire weigh more than 40 pounds.
??? Am I missing something?
06-16-2014, 09:27 PM
#4
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You answered your own question. They look great. That's the main value.
06-16-2014, 11:55 PM
#5
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Appearance only, weight is negligible as noted. And they definitely do look good.
I would be curious to know if brake dust build up between the lug and the wheel is reduced with the gap being so much smaller. Or alternatively is the gap so small you can't really tell its dirty and thus don't need to clean it?
I would be curious to know if brake dust build up between the lug and the wheel is reduced with the gap being so much smaller. Or alternatively is the gap so small you can't really tell its dirty and thus don't need to clean it?
Last edited by Marine Blue; 06-17-2014 at 11:30 AM.
06-17-2014, 11:13 AM
#7
I bought really expensive Italian titanium units and although I'm not sure I'd do it again they look awesome and likely will for years without all the refinishing needed on the factory units.
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06-24-2014, 10:23 AM
#8
If the Titanium bolts are not Porsche approved for your Porsche, then I would take them off.
Bolting material is quite critical with regards to material, testing, manufacturing and quality control and assurance.
Just because some source sells Titanium bolts does not mean they are sufficient for your Porsche.
Bolting in the USA is to a standard and so it will be in Germany.
I would be interested in the manufacturer and pedigree of your Titanium bolts.-Richard
Bolting material is quite critical with regards to material, testing, manufacturing and quality control and assurance.
Just because some source sells Titanium bolts does not mean they are sufficient for your Porsche.
Bolting in the USA is to a standard and so it will be in Germany.
I would be interested in the manufacturer and pedigree of your Titanium bolts.-Richard
06-25-2014, 02:01 AM
#10
Rennlist Member
Thread Starter
If the Titanium bolts are not Porsche approved for your Porsche, then I would take them off.
Bolting material is quite critical with regards to material, testing, manufacturing and quality control and assurance.
Just because some source sells Titanium bolts does not mean they are sufficient for your Porsche.
Bolting in the USA is to a standard and so it will be in Germany.
I would be interested in the manufacturer and pedigree of your Titanium bolts.-Richard
Bolting material is quite critical with regards to material, testing, manufacturing and quality control and assurance.
Just because some source sells Titanium bolts does not mean they are sufficient for your Porsche.
Bolting in the USA is to a standard and so it will be in Germany.
I would be interested in the manufacturer and pedigree of your Titanium bolts.-Richard
06-25-2014, 08:04 AM
#12
"You're funny... I have 4 masters in various Engineering disciplines... Do you think that I have a clue? This purely cosmetic. These bolts will never see track duty and are over specified by a factor of 3 at least. On my 991 Porsche figured out that ****ty rusting bolts needed to be replaced by what I assume is PVD bolts. On the Spyder, I replaced them with these..."
Not a clue!
I don't think you want to compare Engineering credentials and experience, you will lose.
Bolting isn't just Track related but is as important on the Road as on the Track.
From, my G Meter, I pull 1.05G on and off Track. Top speed will probably have little effect on stress as the bolt is essentially just holding the wheel on and the only difference is radial force. Cosmetics is not a reason to change material. Proper maiintenance will keep your bolting clean.
I asked for the manufacturere and pedigree or what one would call in the Quality Assurance World, tracebility to a standard for design and material tracebility.
None of which you have provided.
I'm sure Porsche does not treat it's bolting as a casual product but has very specific criteria for both material and manufacturing. I don't think Porsche OEM bolts come from China either, a continuing source of substandard bolting.
Have you contacted Porsche Germany and queried the use of Titanium bolting?
If you have not contacted Porsche and have no approval, I would not use the bolting.-Richard
Not a clue!
I don't think you want to compare Engineering credentials and experience, you will lose.
Bolting isn't just Track related but is as important on the Road as on the Track.
From, my G Meter, I pull 1.05G on and off Track. Top speed will probably have little effect on stress as the bolt is essentially just holding the wheel on and the only difference is radial force. Cosmetics is not a reason to change material. Proper maiintenance will keep your bolting clean.
I asked for the manufacturere and pedigree or what one would call in the Quality Assurance World, tracebility to a standard for design and material tracebility.
None of which you have provided.
I'm sure Porsche does not treat it's bolting as a casual product but has very specific criteria for both material and manufacturing. I don't think Porsche OEM bolts come from China either, a continuing source of substandard bolting.
Have you contacted Porsche Germany and queried the use of Titanium bolting?
If you have not contacted Porsche and have no approval, I would not use the bolting.-Richard
06-25-2014, 11:26 AM
#14
Rennlist Member
Thread Starter
"You're funny... I have 4 masters in various Engineering disciplines... Do you think that I have a clue? This purely cosmetic. These bolts will never see track duty and are over specified by a factor of 3 at least. On my 991 Porsche figured out that ****ty rusting bolts needed to be replaced by what I assume is PVD bolts. On the Spyder, I replaced them with these..."
Not a clue!
I don't think you want to compare Engineering credentials and experience, you will lose.
Bolting isn't just Track related but is as important on the Road as on the Track.
From, my G Meter, I pull 1.05G on and off Track. Top speed will probably have little effect on stress as the bolt is essentially just holding the wheel on and the only difference is radial force. Cosmetics is not a reason to change material. Proper maiintenance will keep your bolting clean.
I asked for the manufacturere and pedigree or what one would call in the Quality Assurance World, tracebility to a standard for design and material tracebility.
None of which you have provided.
I'm sure Porsche does not treat it's bolting as a casual product but has very specific criteria for both material and manufacturing. I don't think Porsche OEM bolts come from China either, a continuing source of substandard bolting.
Have you contacted Porsche Germany and queried the use of Titanium bolting?
If you have not contacted Porsche and have no approval, I would not use the bolting.-Richard
Not a clue!
I don't think you want to compare Engineering credentials and experience, you will lose.
Bolting isn't just Track related but is as important on the Road as on the Track.
From, my G Meter, I pull 1.05G on and off Track. Top speed will probably have little effect on stress as the bolt is essentially just holding the wheel on and the only difference is radial force. Cosmetics is not a reason to change material. Proper maiintenance will keep your bolting clean.
I asked for the manufacturere and pedigree or what one would call in the Quality Assurance World, tracebility to a standard for design and material tracebility.
None of which you have provided.
I'm sure Porsche does not treat it's bolting as a casual product but has very specific criteria for both material and manufacturing. I don't think Porsche OEM bolts come from China either, a continuing source of substandard bolting.
Have you contacted Porsche Germany and queried the use of Titanium bolting?
If you have not contacted Porsche and have no approval, I would not use the bolting.-Richard
