Throttle Cable Swap and Problems
Thread Starter
Burning Brakes
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
Throttle Cable Swap and Problems
I bought a lot of parts off fo a member here, and at the time I did not realize the LPE 58mm throttle body had the older throttle cable setup, while my 91 vette had the newer style.
I bought an 85-88 cable from wilcox, and its the oem gm part.
I got the cable installed (what a bitch...) and all hoooked up, but the cable does not open up the throttle 100%.
I haven't gone too crazy picking at it yet, but it seems that I am getting full travel from the pedal, but the cable is just a little too long to make this work.
There is a plastic sheath which prevents the cable end from pulling any more. I have been thinking of cutting this sheath back 1/4 of an inch, and that will give me a little more play, but only if the pedal isnt maxed out. I am thinking I need to shorten the actual braided cable and cut back that sheath in order to get full opening of my throttle body.
Did the accel pedal setup change when they changed cables? How hard is that to swap out to an earlier year if that will fix my issues?
It also seems the cruise control is no longer going to work correctly. Anyone deal with this before?
Thanks,
Mike
I bought an 85-88 cable from wilcox, and its the oem gm part.
I got the cable installed (what a bitch...) and all hoooked up, but the cable does not open up the throttle 100%.
I haven't gone too crazy picking at it yet, but it seems that I am getting full travel from the pedal, but the cable is just a little too long to make this work.
There is a plastic sheath which prevents the cable end from pulling any more. I have been thinking of cutting this sheath back 1/4 of an inch, and that will give me a little more play, but only if the pedal isnt maxed out. I am thinking I need to shorten the actual braided cable and cut back that sheath in order to get full opening of my throttle body.
Did the accel pedal setup change when they changed cables? How hard is that to swap out to an earlier year if that will fix my issues?
It also seems the cruise control is no longer going to work correctly. Anyone deal with this before?
Thanks,
Mike
Last edited by Deepa; Mar 20, 2011 at 07:40 AM.
Heel & Toe
Joined: Dec 2005
Posts: 23
Likes: 0
From: Mississauga Ontario
I had the exact problem on my 85 when I put on a Holley 58mm throttle body.I could only get the throttle about 75% open. Don't cut the plastic sheath shorter.I did it and it did nothing to help.I needed a shorter throttle cable.For now I put on an old nitrous plate,which moved the throttle body just far enough so the throttle plates (butterflys) open to 100%.This also fixed my cruise problem.
Thread Starter
Burning Brakes
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
so basically you added a spacer plate in between the throttle body and plenum? I have a superram so where the throttle body bolts to is angled, and if i make a plate for it, it will mess up the angle for the acordian boot. Still an option to check out though.
I need to scope out how to shorten the cable. Maybe I can fab up something on the pedal end of the cable. If I remember, there is a little brass collar crimped/welded on the end of the cable (which the plastic retainer sits against). If I can cut the cable there, then get a new crimp on piece (or weld on) and figure out what i need to cut off, maybe I'll be ok.
I do have these at home. http://dratv.stores.yahoo.net/sooninthcaen.html
Its a make your own throttle cable kit for atv's. It seems the braided cable is the same od so those solder on ends may work.
I'll have to do some measuring and take the cable out of the car then try to shorten it. I'll practice on the old one a few times first. I hope I dont destroy the cable taking it out of the firewall like I did the other one.
Thanks,
Mike
I need to scope out how to shorten the cable. Maybe I can fab up something on the pedal end of the cable. If I remember, there is a little brass collar crimped/welded on the end of the cable (which the plastic retainer sits against). If I can cut the cable there, then get a new crimp on piece (or weld on) and figure out what i need to cut off, maybe I'll be ok.
I do have these at home. http://dratv.stores.yahoo.net/sooninthcaen.html
Its a make your own throttle cable kit for atv's. It seems the braided cable is the same od so those solder on ends may work.
I'll have to do some measuring and take the cable out of the car then try to shorten it. I'll practice on the old one a few times first. I hope I dont destroy the cable taking it out of the firewall like I did the other one.
Thanks,
Mike
Last edited by Deepa; Mar 20, 2011 at 09:01 AM.
Heel & Toe
Joined: Dec 2005
Posts: 23
Likes: 0
From: Mississauga Ontario
I have not seen those cable kits before.Looks like it should work.What I was looking at was a Lokar throttle cable.They are cut to fit inner and outer cable and housing.
http://www.lokar.com/index.html.Check this out it might work for you.
http://www.lokar.com/index.html.Check this out it might work for you.
Thread Starter
Burning Brakes
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
another possibility is making some sort of spacer to hold the cable back farther where it slips into the bracket. Or maybe even moving the bracket somehow.
I am thinking about a piece of aluminum which the bracket can clip into, then that aluminum is welded to the bracket once all of the measurements are right?
I am thinking about a piece of aluminum which the bracket can clip into, then that aluminum is welded to the bracket once all of the measurements are right?
Pro
Joined: Feb 2010
Posts: 677
Likes: 3
From: Metairie LA
What you saying? Mine doesn't look good? Just kidding. I was so anxious to finally drive it that it was a quickie solution. I still have to touch up the welds and paint it - just realized when I took the picture that it is starting to rust.
It does work like a champ though.
It does work like a champ though.
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Thread Starter
Burning Brakes
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
Well I got it all figured out.
When I bought my superram, it had a plate bolted on to where the stock throttle cable bracket bolts to. It had 3 holes drilled/tapped for the bracket. This essentially moved my bracket 1/2 an inch closer to the throttle body and screwed up the travel. I removed the plate, and bolted the bracket directly to the superram, and all is well.
Full open and close, full travel, same with cruise control.
Thanks for all of your help.
Mike
When I bought my superram, it had a plate bolted on to where the stock throttle cable bracket bolts to. It had 3 holes drilled/tapped for the bracket. This essentially moved my bracket 1/2 an inch closer to the throttle body and screwed up the travel. I removed the plate, and bolted the bracket directly to the superram, and all is well.
Full open and close, full travel, same with cruise control.
Thanks for all of your help.
Mike
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
