Forgot to mention: in previous pic, the rad top fitting is 1 1/8"; tube is ~1" OD. The silicone coupler is just a piece of 1" silicone hose. It will stretch quite a bit.

This shows a transition fitting from the pump outlet 1 1/4" to 1".

On 10/21/2014 9:56 AM, Charlie England wrote:

Pics to follow in multiple emails, due to list size limits.

I bought most of my stuff from
http://www.siliconeintakes.com/
and
http://www.verociousmotorsports.com/

Also, check ebay for both mandrel bends and silicone bends. There are several sites with pretty good prices.

Silicone Intakes' mandrel bends are much cheaper than their silicone bends. For same-size couplers, you can just buy a length of hose & cut it into couplers (see radiator input pic).

I had no luck bending thinwall AL tubing myself, even if I packed the tubing with sand prior to bending & used a Harbor Freight hydraulic pipe bender. However, if you can stand the loss of flow area, AL electrical conduit is relatively easy to bend without collapsing it (thicker walls).

Silicone hose seems to cost anywhere from $5 (1") to $20 per foot.  Tubing looks prettier, but a continuous run of silicone hose isn't that much more expensive and it can get done in minutes instead of weeks. Ask me how I know....

Charlie

On 10/21/2014 7:28 AM, Jeff Whaley wrote:

Hello Doug:

The radiator is 100% stock; I did not weld any fittings onto it.  My method may not save you any money though, as I bought expensive $30 blue silicone hose (HPS) couplers to mate with the stock 1.5 inch water pump inlet/outlet connectors on my engine.  One elbow is 1.5” to 1.5”, 90 degree and the other is 1.75” to 1.5”, 45 degree to match the radiator.  In between is 1.5” aluminum straight or elbow tubing.   Jeff

 

From: <flyrotary@lancaironline.net> Subject: FW: Getting There, New Exhaust and Radiator Setup Date: Mon, 20 Oct 2014 13:07:28 -0400 To: flyrotary@lancaironline.net

Jeff: Do you have any shots of the fittings you had welded onto your Griffin radiator, etc.  I am thinking of doing something similar for my 9A w/13B since I really don't want to spend $1K on a bunch of $35-40 a piece AN fittings, hose, etc. Thanks. Doug Lomheim RV-9A 13B FWF

 

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Attachment: radiator out.jpg 

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