Paul,
  If you or Jeff still have any RX-8 coil
  heat sinks on hand, I need one. Just
  let me know how much and where
  to send the money. Thanks.
  Frank


  I only made one Frank. Jeff never made any to my knowledge.
  Alex Moltena owns it. The demand is not much so far.
  Might take awhile for most people to realize it is the best way to go :)

  If you know someone with a mill you can get the islands
  machined and clamps made. If not my next door neighbor will do it
  for $35 an hour. Drop ship the extrusion to me.

  The minimum order for the extrusion is enough for two parts as I recall.

  Paul Lamar

  Would a spreadable thermally conductive compound be beneficial for this
application?  The product in mind is used
  between the CPU of a computer and it's heatsink.  If it is of benefit,
would applying it to the stock mounting plate
  provide meaningful results?

  Product in mind:
  http://goo.gl/Bx5Nr

  Aaron Buster

  That is a given but you still need the islands.
  The thing to constantly keep in mind is four cycle piston engines
  work the coil half as hard.

  Paul Lamar

Found a great heat sink riding the back of the processor in an old HP
computer.  Easy to get to, and free, or nearly so,
when your PC dies.

Lewis.

How big is it. What are the dimensions.

Paul Lamar

Paul,
I have already contacted the supplier. They are no longer
called M&M Metals, instead they are called Alexandria
Industries. Their minimum order is $250 for a six foot
length, enough for about 12 heat sinks. I can't justify
this for only one part; any suggestions?
Frank

Anybody else need some heat sinks?

There are lots of options.

http://www.thermal-solutions.us/contact-us.html
http://www.thermal-solutions.us/extrusions.html

Check the price from this company on part number
EXT301525

http://thermocoolcorp.com/wp-content/uploads/2013/01/TCP7503.jpg
TCP7503 will work.

http://www.aavid.com/product-group/extrusions/search

http://catalog.chtechnology.com/viewitems/extruded-bonded-fin-heat-sinks/extruded-heat-sinks


All of these will work.

You want something about 3 inches wide with fins 1 to 1.5 inches high.

Paul Lamar

I suggest starting a small biz. Invest in extrusions and a chop saw with a carbide tooth blade. Cut the extrusions to length and find somebody to machine them for you. Try Jeff or Jim Poole, or John Lynch. Small biz people all.
Jim and John are hangar neighbors. Jim works manually on a BridgePort end mill and John has an NC mill as does Jeff.

No need for a biz license out of your home and mail order. Collect in cash and pay in cash whenever possible.

I'll give you free advertising on the RENL web site.

There was about 400,000 to 500,000 RX8's sold. Plus many earlier 13B engine that can use and need RX8 coils. 2.5 million total. The road racing and drag racing market also exist.

There is no black magic in ignition coils. For a given dwell time, RPM and energy there will always be waste heat. Here is what Tracy Crook is doing to cool the GM LS1 coils on his RV8. IMHO he would be better off with RX8 coils on a heat sink as they are designed for high RPM rotary or two cycle..

I'll cut the first batch for you for free as I have a chop saw with carbide blade.

Paul Lamar



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