Titanium brake heat-shield shims

[knucklesplitter]

Anybody heard of these?

http://www.takspeed.com/shop/index.p...FRBGGAodXEx1jA

Tech. discussion:
http://www.takspeed.com/shop/index.p...id=1&chapter=0

Discuss...

[MikeK]

How thick are these? I couldn't find any info on the site. When I put new brake pads in I have no room left over. I wonder how you are supposed to wedge them in.

[Kevin M]

Supposedly they reduce heat transfer from the pads to the fluid via the pistons. Stoptech has a white paper about them I think.

[sperry]

Yeah, StopTech sells 'em for their brakes, but they're really expensive simply 'cause they're Ti. IIRC, they're very thin, not more than 1 or 2 mm.

[knucklesplitter]

Originally Posted by MikeK

How thick are these? I couldn't find any info on the site. When I put new brake pads in I have no room left over. I wonder how you are supposed to wedge them in.

My guess would be .035" (.9mm).

[knucklesplitter]

Originally Posted by sperry

Yeah, StopTech sells 'em for their brakes, but they're really expensive simply 'cause they're Ti. IIRC, they're very thin, not more than 1 or 2 mm.

I could make those and sell them for less than that for sure. Only about $20 for the material for 4 (assuming .035").

[sperry]

Originally Posted by knucklesplitter

I could make those and sell them for less than that for sure. Only about $20 for the material for 4 (assuming .035").

Well, I'd be happy to "test fit" a set for StopTech ST-40 calipers.

[MikeK]

Originally Posted by knucklesplitter

I could make those and sell them for less than that for sure. Only about $20 for the material for 4 (assuming .035").

Count me in! BTW I need some rear ones as well

[knucklesplitter]

Originally Posted by sperry

Well, I'd be happy to "test fit" a set for StopTech ST-40 calipers.

Have any old (or new) brake pads laying around? Brembo or Stoptech.

I've been doing a lot of business with the waterjet guy in town lately.

[sperry]

Originally Posted by knucklesplitter

Have any old (or new) brake pads laying around? Brembo or Stoptech.

I've been doing a lot of business with the waterjet guy in town lately.

I got a stack of StopTech pads.

[knucklesplitter]

I emailed to enquire:

Originally Posted by Takspeed Motorware

Hi. they are .020" thick. What we usually find is that the shims fit fine with new pads, but you may need to bed the pads first.

[Dean]

I have STI pads front & rear handy.

.020 material sounds about right. They are jut acting as a radiant shield.

Please note, these will not affect pad compound related fade, only overheated fluid. In fact, they will likely increase pad & rotor temp.

[knucklesplitter]

Bring pads to Thursday's meet if you don't mind. I may do the first few in stainless to keep costs down on prototypes, but we'll see.

[Dean]

Originally Posted by knucklesplitter

Bring pads to Thursday's meet if you don't mind. I may do the first few in stainless to keep costs down on prototypes, but we'll see.

I won't be here... MikeK?

[knucklesplitter]

I don't know if I will make it tonight. I just remembered that my son has a baseball game and now it's a 20 minute drive for me.

Material cost per axle (4 shims) at .020" is about $13 (assuming the shims are about 3" x 4"). Waterjet cutting would be less than $20 per axle I bet.

[MikeK]

Originally Posted by Dean

I won't be here... MikeK?

I won't be at tonight's meet, but I do have lots of pads lying around

[100_Percent_Juice]

Originally Posted by MikeK

I do have lots of pads lying around

...really?

[rubberbiscuitt]

who's got the waterjet? does anyone here know CAD/CAM? the programing would be the most expensive part of the build, but it's a one time investment. most places/friends that do watercutting, is $85 hourly, and the same hourly charge for programing. an hour of a water jet machine runing can probably go through a 4x8 sheet of thin Ti. that's at least 50 sets (4 pcs) of shims.

and $20 material seems kinna cheap. but i don't sell metal anymore, so i really don't know.

[AtomicLabMonkey]

Originally Posted by rubberbiscuitt

does anyone here know CAD/CAM?

Yes.

[knucklesplitter]

Originally Posted by rubberbiscuitt

who's got the waterjet? does anyone here know CAD/CAM? the programing would be the most expensive part of the build, but it's a one time investment. most places/friends that do watercutting, is $85 hourly, and the same hourly charge for programing. an hour of a water jet machine runing can probably go through a 4x8 sheet of thin Ti. that's at least 50 sets (4 pcs) of shims.

and $20 material seems kinna cheap. but i don't sell metal anymore, so i really don't know.

I do everything on CAD. I use Waterjet Machining & Design off Rock near Mill. They have a waterjet and a plasma cutter, and they do small lots very cheaply and don't charge (as far as I know) for the nesting and path programming if I give them a CAD file of the individual part.

Used McMaster.com pricing for estimating Grade 2 Ti @ .020" thick. Estimated the size but didn't factor in waste or shipping. It is prolly off a little.

[knucklesplitter]

If y'wanna, bring your brake pads to tonight's meet. New or used I will have them back to you in a week or two (sooner if necessary). Just need one each for front and rear - STI Brembos (same as EVO?), StopTechs, WRX's, whatever.

If I am not there, then give them to somebody willing near NW Reno and I'll pick 'em up.

Doable?

[sperry]

Originally Posted by knucklesplitter

If y'wanna, bring your brake pads to tonight's meet. New or used I will have them back to you in a week or two (sooner if necessary). Just need one each for front and rear - STI Brembos (same as EVO?), StopTechs, WRX's, whatever.

If I am not there, then give them to somebody willing near NW Reno and I'll pick 'em up.

Doable?

I'll see what I can do: should be some pads for the ST-40 StopTech caliper, and the Subaru 2-pot rears (the older STi only rears... they may have changed the pads between my R180 compatible rear calipers and the '06 WRX 2-pot calipers).

[knucklesplitter]

IF you bring pads to the meet, give them to Scott. I can't make it again.