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Throttle Linkage setup for LT1 280ZX??


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Right now I am working on installing an LT1/4l60e into my '81 280ZX. I bought a 36" Lokar throttle cable designed for the TPI and later engines and I noticed that it takes about 2 inches of cable travel to get full throttle out of the motor. Ideally I want to have the cable hook right up to the gas pedal but the pedal only travels an inch. What have other Hybrid Zers done to solve this? Thanks for any input you may have.

 

Sean

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I am using the stock gas pedal in my LT1 powered 280ZX, however I removed the gas pedal and "reformed" it so that I had enough travel. I wish I could give you a rough measurement but it was so long ago that I dont know exactly what I did to get enough travel.

 

I still using that plastic ball that the old linkage used to connect to the gas pedal. I will get some pics for you tomorrow when Im out in the garage. You should be able to get the point with some pics.

 

Guy

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Ok, I finally found my camera and got some pics for you....

 

Picture #1 is where I cut the gas pedal into 2 pieces and welded it back together. I also had to cut the actual pedal part off of the rod and move it so that it wouldnt hit the floor too soon.

dcp_1933-502x328.jpg

 

Picture #2 is how the gas pedal looks in the car. DCP_1934-502x326.jpg

 

Picture #3 is the bracket that I made for the end of the Lokar throttle cable that is closest to the firewall. That bracke bolts on to where the original throttle bracket went. I just cut off part of the old one and welded on a piece that would hold the new cable.

DCP_1935-498x323.jpg

 

Picture #4 is where I mounted the other end of the throttle cable. It actually mounted right up to the old throttle bracket for the LT1. I had to ream out the throttle "cam" to get the cable end to fit into the "cam" and move freely. No big deal with a dremel! Also as you can see the old "ball joint" from the original throttle cable is screwed onto the end of the new Lokar unit. It fits like a glove and makes hooking up the cable to the gas pedal extremly easy.

DCP_1936-497x323.jpg

 

 

I hope this will help give you an idea on how to modify the linkage/cable assembly.

 

 

Guy :-D

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