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FE Power Forums => FE Technical Forum => Topic started by: 62Fordguy on May 06, 2020, 05:55:52 PM

Title: Tunnel Wedge
Post by: 62Fordguy on May 06, 2020, 05:55:52 PM

Is there a way to tell the difference between a Dove vs. original ford tunnel wedge without having both in front of you or that familiar with them? I believe they both have the part # between the bases.

Title: Re: Tunnel Wedge
Post by: jayb on May 06, 2020, 05:59:26 PM

If you have my book, or know someone who does, there are pictures of both those intakes in there.  One difference is the radius of the runner inlets; it is much sharper on the stock manifolds.

Title: Re: Tunnel Wedge
Post by: 62Fordguy on May 06, 2020, 06:13:49 PM

Got to get that book. Was the bottom heat shield just a flat stainless plate?

Title: Re: Tunnel Wedge
Post by: jayb on May 06, 2020, 07:14:06 PM

The Dove one was, although I don't think it was stainless.  The Ford TW was a stamped sheet metal plate with ridges and an edge around it.

Title: Re: Tunnel Wedge
Post by: 62Fordguy on May 06, 2020, 07:35:14 PM

What would be your best guess Jay, oem or dove? Thanks for the help.

Title: Re: Tunnel Wedge
Post by: thatdarncat on May 06, 2020, 07:41:02 PM

Like Jay said, the original Ford Tunnel Wedge has a stamped steel cover plate with stiffening ridges, and the original screws were drilled & safety wired. Below is a picture of my original Ford Tunnel Wedge. Also as noted & pictured in Jay’s book, there was a difference in shape between the original Ford and the Dove copy at the water passage. The original Ford has a distinct shape that matches some gaskets, with the lowest point at the side, the Dove copy Jay tested had a different water passage shape that was lower in the middle, which allowed it to leak out the weep slot some intake gaskets have. I don’t know if all Dove Tunnel Wedge intakes had that water passage shape though, or it was a casting fluke of his. I have a picture below of the original Ford Tunnel Wedge water passage shape. Also, Jay tested all the intakes in the book for volume and the results are listed in the book, the Dove Tunnel Wedge has a much larger volume than the original Ford intake, so theoretically you could test the intake for volume and see which it’s closer to.

(https://i.postimg.cc/HWwMqChv/159-A330-D-E072-433-B-A16-A-62-EDD57-BF3-DF.jpg) (https://postimg.cc/yWNWR2B0)

(https://i.postimg.cc/8z0fRk7c/8-B8-D1-CF4-C1-F9-4-BB9-B3-DC-4-E2-BAFBA173-B.jpg) (https://postimg.cc/K1tYF2rh)

Title: Re: Tunnel Wedge
Post by: Gregwill16 on May 06, 2020, 09:18:16 PM

Here is a link on here that I found helpful to id them.

http://fepower.net/simplemachinesforum/index.php?topic=5924.msg64372#msg64372

Title: Re: Tunnel Wedge
Post by: BattlestarGalactic on May 06, 2020, 09:22:06 PM

My Dove TW has a serial number stamped on the front edge next to the bypass nipple.  Mines number 057.

The bottom plate is just a flat plate with SHCS holding it on.