| [GMCnet] FiTech throttle linkage and travel [message #302069] |
Sun, 12 June 2016 21:55  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Senior Member |
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Hi Jon,
Search for my posts under the subject "FiTech is the real deal". All of these items and several more were covered quite some time ago. No jury rig required. I will be doing a seminar on EFI and the modern self learning units like FiTech at the five club rally at Coos Bay, OR, this October if you can make it.
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed & hand crafted
in the 1907 former Masonic Temple building
in historic Kerby, OR
http://jerrywork.com
..........
Message: 8
Date: Sun, 12 Jun 2016 17:05:32 -0400
From: Advanced Concept Energy Solutions
To: gmclist@list.gmcnet.org
Subject: [GMCnet] FiTech throttle linkage and travel
Message-ID:
Content-Type: text/plain; charset=us-ascii
So I installed a FiTech on my 455. Lots of fitment issues they don't talk about. You need to cut bottom off throttle linkage to get clearance above manifold. You need three of those carb spacers to get clearance of butterflies over flanges. 60% of primaries and 40% of secondaries are cut off by gaskets. More on the right than on the left. Can't wait to hear them at full throttle.
I tried every throttle support I could find but wound up building my own out of aluminum angle from Home Depot.
I have adjusted the throttle cable all the way at the engine and under the dash. New cable last year from Alex Sirum. I still need another 2-3 inches to be able to get full throttle opening. Thinking about using squeeze on shots at the gas peddle.
Anybody got any ideas on how to shorten the cable.
I really don't have room at the throttle body to try and extend the arm to get more travel as I think it would interfere with the air filter.
Has anyone else had this issue. Also what have you used at the throttle to attach the cable to the 1/2" hole. Bought the bushing and throttle pin bolt but bushing extends far from shaft ( torquing tb shaft) and throttle pin bolt was too short. Seems like everything about this install in a jury rig.
Jon Darcy ACES
North Jersey 76 stretch, flares, 4 bag, Alcoa's, bunkhouse,MAC Dash
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] FiTech throttle linkage and travel [message #302078 is a reply to message #302069] |
Mon, 13 June 2016 12:46  |
Norisan
Messages: 18
Registered: April 2015
Location: Calgary
Karma: 0
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Junior Member |
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Hi Jon: I installed the Fitech but have an aftermarket manifold so did not have your clearance issues. I did have a problem with the force required at the gas peddle, so I made a bushing and using a longer bolt I installed the cable to the 1/2" hole in the linkage to give more leverage, and then simply bent the gas peddle upwards sufficiently to obtain wide open throttle. These units are "universal fit" so will usually require some mods, however the end result, in my case anyway, was worth the effort. From a driving perspective this is by far the best mod I've done.
Norm.
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