Titanium Group buy - LotusTalk

perryeyges · 08-27-2008, 04:11 PM

Thinking about putting together a "Titanium group buy" screws, bolts, etc.
Tell me which bolts/ screws you would like to change out to Ti.
Trying to gauge interest..

...m... · 08-27-2008, 04:29 PM

...titanium and stainless both are immune from galvanic action against aluminum?..

alil'britdifferent · 08-27-2008, 04:53 PM

From memory Ti is less reactive that Stainless. Would need to check book at work to be sure.

Randy Chase · 08-27-2008, 05:00 PM

Use caution for critical suspension bolts.

perryeyges · 08-27-2008, 05:40 PM

I LIKE the Noble! Thanks for the reminder on the suspension bolts..

MNlotus · 08-27-2008, 07:08 PM

i'd like some titanium bolts that keep that wheels on

perryeyges · 08-28-2008, 08:04 AM

I got my Poggipolini(Ferrari supplier) Titanium wheel bolts through Sector111. Not sure if they can still get them though. They were a BMW 3 Series wheel bolt kit.

pMarty · 08-28-2008, 08:43 AM

just a word of warning we used ti bolts on our race car... the galling tendency of titanium is greater than that of stainless steel. be careful in applications where parts rotate about the axis of the bolt, also bolts that are removed and re-torqued several times ie- wheel bolts.

perryeyges · 08-28-2008, 08:49 AM

Quote:

Originally Posted by pMarty

just a word of warning we used ti bolts on our race car... the galling tendency of titanium is greater than that of stainless steel. be careful in applications where parts rotate about the axis of the bolt, also bolts that are removed and re-torqued several times ie- wheel bolts.

My Ti wheel bolts are anodised. I was told that this keeps them from galling. I have taken them on and off 5 or 6 times and each time torqued them to 85lb ft., they show no galling and look pretty much new. A tiny bit of color change on the engaged threads and the cone(to be expected for any material, steel included). Ferrari uses titanium for wheel bolts on quite a few of their models. I have not heard of any problems. Porsche still uses aluminum wheel nuts on some of their cars.

luxige · 08-28-2008, 01:15 PM

Keep in mind also that if a critical Ti fastener gets a scratch or notch, it is much more prone to failure than steel, so should be discarded.

perryeyges · 08-28-2008, 02:54 PM

Quote:

Originally Posted by luxige

Keep in mind also that if a critical Ti fastener gets a scratch or notch, it is much more prone to failure than steel, so should be discarded.

Must be more brittle?

Randy Chase · 08-28-2008, 03:10 PM

Yep. More easily harmed by abrasion too. Not good for high heat fasteners normally. Can be corroded in the presence of a liquid (it is pretty noble on the galvanic charts).

Cool stuff, but just be careful where you use it.

300hpMR2 · 08-28-2008, 04:08 PM

I might be interested in some Ti bolts for unimportant parts.

I had a bad experience with a Ti seat bolt on my mountain bike. One morning the bolt snapped and one end plus the bolt went flying when I sat on the seat. I only had it on for about a month. Perhaps it was defective or i overtorqued it or i exceeded the weight limit.

If Ferrari uses Ti wheel bolts, I imagine they must be more than adequate. I should check out the ones on my friend's new f430.

drken · 08-31-2008, 12:13 PM

Has anyone calculated the weight savings using SS vs Ti?

08-27-2008, 04:11 PM	#1 (permalink)
perryeyges XPRMTL Join Date: May 2004 Location: Berzerkley Posts: 3,117	Titanium Group buy Thinking about putting together a "Titanium group buy" screws, bolts, etc. Tell me which bolts/ screws you would like to change out to Ti. Trying to gauge interest.. Attached Images

08-27-2008, 04:29 PM	#2 (permalink)
...m... Denuo Volatilis Join Date: Jun 2008 Posts: 2,714	...titanium and stainless both are immune from galvanic action against aluminum?.. __________________ 2005 Federal Elise \| Touring \| Storm Titanium ...73,000 miles and aging beautifully... 2000 New Beetle \| Turbo \| Reflex Silver ...107,000 miles of steadfast service...

08-27-2008, 04:53 PM	#3 (permalink)
alil'britdifferent English Exile Join Date: Oct 2007 Location: Fort Mill, SC Posts: 1,092	From memory Ti is less reactive that Stainless. Would need to check book at work to be sure. __________________ 2005 Elise: Starlight Black - Touring & Sport Pack Faster, Lighter, Safer: Nitron Sport Pro - Lotus Sport ECU - RTD Brace - Braille Battery - K40 anti-Radar/Laser - 4Tress Bar - Schroth 5P Harness' - Fire Ext'r - SS brake lines Audio: Alpine - JBL Speakers - Arqray Double Tip Exhaust w/ Sport Cat - Desnorkel/Green Visual: Hard top - Challenger Rear Grill - Carbon Fiber; Diffuser, Front Splitter & Side Scoops - Stealth Bulbs - Folding Tow Hook, Bootie, Mircomirror & Buttons

08-27-2008, 05:00 PM	#4 (permalink)
Randy Chase Registered User Join Date: Apr 2002 Location: San Diego and where ever the roads lead Posts: 28,172 Images: 761	Use caution for critical suspension bolts. __________________ [b]* V E R I T A S * A E Q U I T A S [/b] We have been feeling the buzz since 2002 2006 Noble M400. Getrag tranny, Quaiffe LSD, Hinged clams. Duratec dual turbo V6. Hoosier 315-18 tires. 2350 pounds. Over 500hp. Track weapon. 2009 Rossion Q1. [color=orange]Monaco Orange. [/color]Wing. Black leather/Alcantara with orange stitching. The street car. In build: 2009 Toniq R (300whp? 1100 pounds?). [color=orange]Chrome Orange. [/color] Lexus GX-470 tow vehicle. [color=blue]“Busy at times off the forum and scary* actually off the Internets. So I may not see your pm or emails for a while"[/color]

08-27-2008, 07:08 PM	#6 (permalink)
MNlotus 06 elise Join Date: Jun 2004 Location: apple valley MN Posts: 793	i'd like some titanium bolts that keep that wheels on __________________ 2006 Lotus Elise-way too many mods to list (k24 swap planned. 300+whp) http://www.youtube.com/watch?v=tjIcCsvhWvY 2003 Caterham Super Seven DeDion http://www.youtube.com/watch?v=Z1ysO...e=channel_page

08-27-2008, 05:40 PM	#5 (permalink)
perryeyges XPRMTL Join Date: May 2004 Location: Berzerkley Posts: 3,117	I LIKE the Noble! Thanks for the reminder on the suspension bolts..

08-28-2008, 08:04 AM	#7 (permalink)
perryeyges XPRMTL Join Date: May 2004 Location: Berzerkley Posts: 3,117	I got my Poggipolini(Ferrari supplier) Titanium wheel bolts through Sector111. Not sure if they can still get them though. They were a BMW 3 Series wheel bolt kit.

08-28-2008, 08:43 AM	#8 (permalink)
pMarty Registered User Join Date: Aug 2008 Posts: 90	just a word of warning we used ti bolts on our race car... the galling tendency of titanium is greater than that of stainless steel. be careful in applications where parts rotate about the axis of the bolt, also bolts that are removed and re-torqued several times ie- wheel bolts.

08-28-2008, 01:15 PM	#10 (permalink)
luxige luxige Join Date: Jun 2007 Location: MA Posts: 1,184	Keep in mind also that if a critical Ti fastener gets a scratch or notch, it is much more prone to failure than steel, so should be discarded. __________________ In theory, there is no difference between Theory and Practice. In practice, there is. - Y. Berra

08-28-2008, 03:10 PM	#12 (permalink)
Randy Chase Registered User Join Date: Apr 2002 Location: San Diego and where ever the roads lead Posts: 28,172 Images: 761	Yep. More easily harmed by abrasion too. Not good for high heat fasteners normally. Can be corroded in the presence of a liquid (it is pretty noble on the galvanic charts). Cool stuff, but just be careful where you use it. __________________ [b]* V E R I T A S * A E Q U I T A S [/b] We have been feeling the buzz since 2002 2006 Noble M400. Getrag tranny, Quaiffe LSD, Hinged clams. Duratec dual turbo V6. Hoosier 315-18 tires. 2350 pounds. Over 500hp. Track weapon. 2009 Rossion Q1. [color=orange]Monaco Orange. [/color]Wing. Black leather/Alcantara with orange stitching. The street car. In build: 2009 Toniq R (300whp? 1100 pounds?). [color=orange]Chrome Orange. [/color] Lexus GX-470 tow vehicle. [color=blue]“Busy at times off the forum and scary* actually off the Internets. So I may not see your pm or emails for a while"[/color]

08-28-2008, 04:08 PM	#13 (permalink)
300hpMR2 Not a poseur anymore! Join Date: Jul 2007 Location: Orange County, CA Posts: 577	I might be interested in some Ti bolts for unimportant parts. I had a bad experience with a Ti seat bolt on my mountain bike. One morning the bolt snapped and one end plus the bolt went flying when I sat on the seat. I only had it on for about a month. Perhaps it was defective or i overtorqued it or i exceeded the weight limit. If Ferrari uses Ti wheel bolts, I imagine they must be more than adequate. I should check out the ones on my friend's new f430. __________________ 07 Phantom Black Exige S - Touring Pack/Track Pack/TC/SS/Titan QR rack/Costco wireless rear view cam/BWR door sill protectors/Locking gas cap mod/headlight film with bubbles/Larini SC Sport/Multivex mirrors/Saikou Michi Oil Catch Cans/Dunlop Direzza Z1 Star Specs/Manly's Motor Mounts

08-31-2008, 12:13 PM	#14 (permalink)
drken Registered User Join Date: Jul 2008 Posts: 55	Has anyone calculated the weight savings using SS vs Ti?

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