View Full Version : material for spacers
Wiscoballer
03-23-2012, 06:18 PM
http://www.ebay.com/itm/UHMW-virgin-white-sheet-cut-offs-75-x-2-x13-25-Made-in-USA-CNC-/350550135083?pt=LH_DefaultDomain_0&hash=item519e6a912b#ht_804wt_1270
C (http://www.ebay.com/itm/UHMW-virgin-white-sheet-cut-offs-75-x-2-x13-25-Made-in-USA-CNC-/350550135083?pt=LH_DefaultDomain_0&hash=item519e6a912b#ht_804wt_1270)an I use these to make my own spacers? Can someone give me dimensions? I have access to a mill that I plan to use to make them.
RoadWarrior222
03-23-2012, 08:06 PM
Think it melts too easy that stuff.
Would be good for rub strips or skids to protect oil pan, bottom of air dam etc, on a lowered car.
---------- Post added at 08:06 PM ---------- Previous post was at 08:04 PM ----------
http://en.wikipedia.org/wiki/UHMW
The weak bonding between olefin molecules allows local thermal excitations to disrupt the crystalline order of a given chain piece-by-piece, giving it much poorer heat resistance than other high-strength fibers. Its melting point (http://en.wikipedia.org/wiki/Melting_point) is around 144 to 152 °C (291 to 306 °F), and, according to DSM, it is not advisable to use UHMWPE fibers at temperatures exceeding 80 to 100 °C (176 to 212 °F) for long periods of time. It becomes brittle (http://en.wikipedia.org/wiki/Brittle) at temperatures below −150 °C (−240 °F)
2 5/8" x 24" is about as small as you can go and still have a little bit of wiggle room. That's enough to cut a set of spacers. I went with Delrin and I've heard that certain types of nylon work. Depending on the car most people go 1/2" or 1". P-bodies have the least clearance. My 1/2" spacers are pretty tight on my 94 Shadow.
There are some pics of mine near the bottom of this page. http://www.turbo-mopar.com/forums/showthread.php?62520-3.0-Build-Project-quot-Green-Machine-quot/page7
Sundance 6g72
03-23-2012, 11:59 PM
take the gasket that goes between the upper and lower intakes and use that as a stencle.
when i laser cut my spacers, i put my gasket in a scanner and then had the scanner send it to the plasma cutter and it just cut them out for me. this was with steel though... i didnt mill them flat so they require permatex to seal correctly.
moparman76_69
03-24-2012, 11:29 AM
Why not use Phenolic?
Wiscoballer
03-24-2012, 01:36 PM
this was cheaper
Wiscoballer
03-24-2012, 01:47 PM
http://www.ebay.com/itm/3-4-WHITE-POLYPROPYLENE-STOCK-SOLID-SHEET-PLASTIC-12-X-8-1-2-/370587778037?pt=LH_DefaultDomain_0&hash=item5648c0bbf5#ht_500wt_1054 what about this? melts at in between 320*F and 350*F
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