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Drilling 727 Kickdown Lever for Lokar Kit #1312456
09/29/12 03:51 PM
09/29/12 03:51 PM
Joined: Jul 2007
Posts: 1,526
North Carolina
cjskotni Offline OP
pro stock
cjskotni  Offline OP
pro stock

Joined: Jul 2007
Posts: 1,526
North Carolina
Guys,

I have been reading some of the more recent posts on here about the shortcoming of the Lokar kit namely that the ratio on the carb lever does not match the ratio on the kickdown lever causing the kickdown to be almost unadjustable.

I have the Lokar kit and I want to stick with it. I know Bouchillon has their version which is supposedly better but I don't want to pay 125$ for that right now...please don't suggest that.

The issue I am running into now is I can adjust to the point where the tranny kicks down at WOT but then the tranny won't upshift from 2nd to 3rd at light throttle until I let off the gas entirely. If I adjust it the other direction to the point where the tranny shifts properly at part throttle, it isn't far enough to kick down at all when at WOT.

I have read that you can make the ratio more correct by drilling the lever inward a bit to re-locate the stud thereby reducing the ratio.

Can somebody give me a rough idea how far in I should drill to move the stud in? I know this isn't an exact science but I don't want my lever to turn to swiss cheese doing this!

Any ideas would be appreciated. You can use my photo and make a dot where it worked for you maybe?

PS carb is a Holley 4150.

Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: cjskotni] #1312457
09/29/12 04:02 PM
09/29/12 04:02 PM
Joined: Jan 2003
Posts: 15,548
Norwich CT USA
moparts Offline
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Over the years there are different length leavers out there.

So drilling should work fine, just finding the correct length to work correctly.


Tom ,

2011 Ram 3500 C&C Diesel
2009 Challenger R/T
1971 Challenger Conv. 511/4 speed
1970 Challenger R/T 503/727


Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: cjskotni] #1312458
09/29/12 05:12 PM
09/29/12 05:12 PM
Joined: Jan 2003
Posts: 25,748
Rio Linda, CA
John_Kunkel Offline
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Measure the total travel of the carb lever (from warm idle to WOT) where the Lokar cable attaches.

Then find the place on the trans lever (from full forward to full rearward) that matches the carb travel dimension and drill your hole there.

When you've done that, attach a light spring in the unused original hole to pull the lever forward.


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Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: John_Kunkel] #1312459
09/29/12 07:07 PM
09/29/12 07:07 PM
Joined: Aug 2003
Posts: 1,062
Amherst,NY
challengermike Offline
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Amherst,NY
you can change the ratio by moving where the cable connects to the carb. closer to the throttle shaft the less it will pull the further away (down) the more throw. I usually drill a new hole in the carb closer to the throttle shft(butterfly arm). You can do the same with the trans arm also. I use locar cables all the time and they work perfect for me.

Last edited by challengermike; 09/29/12 07:08 PM.
Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: moparts] #1312460
09/30/12 09:36 AM
09/30/12 09:36 AM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
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Florida
Quote:

Over the years there are different length leavers out there.

So drilling should work fine, just finding the correct length to work correctly.






I have a hand full of leavers and they are different lengths and the D-hole is clocked different on some of them as well.

I have changed them to re-clock the D-hole to get the lever to move further back at WOT with cobbled together linkage on my junk.

Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: John_Kunkel] #1312461
09/30/12 10:25 PM
09/30/12 10:25 PM
Joined: Jul 2007
Posts: 1,526
North Carolina
cjskotni Offline OP
pro stock
cjskotni  Offline OP
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Posts: 1,526
North Carolina
Quote:



When you've done that, attach a light spring in the unused original hole to pull the lever forward.




Any idea where to buy a bracket to attach the spring to? Doesn't anybody make a bracket to bolt on the front of the tranny to be the front attchment point for this spring?

It seems the lever will pull itself back ont its own but I am guessing an extra spring wouldn't hurt...

Please me find a bracket to do this.

Thanks!

Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: cjskotni] #1312462
09/30/12 11:34 PM
09/30/12 11:34 PM
Joined: Jan 2003
Posts: 11,076
Berlin, N.J.
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abodyjoe Offline
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Quote:

Guys,

I have been reading some of the more recent posts on here about the shortcoming of the Lokar kit namely that the ratio on the carb lever does not match the ratio on the kickdown lever causing the kickdown to be almost unadjustable.

I have the Lokar kit and I want to stick with it. I know Bouchillon has their version which is supposedly better but I don't want to pay 125$ for that right now...please don't suggest that.

The issue I am running into now is I can adjust to the point where the tranny kicks down at WOT but then the tranny won't upshift from 2nd to 3rd at light throttle until I let off the gas entirely. If I adjust it the other direction to the point where the tranny shifts properly at part throttle, it isn't far enough to kick down at all when at WOT.

I have read that you can make the ratio more correct by drilling the lever inward a bit to re-locate the stud thereby reducing the ratio.

Can somebody give me a rough idea how far in I should drill to move the stud in? I know this isn't an exact science but I don't want my lever to turn to swiss cheese doing this!

Any ideas would be appreciated. You can use my photo and make a dot where it worked for you maybe?

PS carb is a Holley 4150.





i've been using lokar cables for years now on a lot of different cars. i've never had to drill the leaver to get it to work properly. i have always used the a-body leaver which seems to be quite a bit shorter then the one in your picture.


It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

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Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: abodyjoe] #1312463
10/01/12 12:05 AM
10/01/12 12:05 AM
Joined: Jan 2003
Posts: 32,922
Grand Prairie,Texas
stumpy Offline
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Grand Prairie,Texas
Make a bracket it's not that hard. It doesn't need to be much because the spring you need is really light.

Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: stumpy] #1880206
07/28/15 06:08 PM
07/28/15 06:08 PM
Joined: Jul 2005
Posts: 1,723
North Austin
KnuckleDuster Offline
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North Austin
Dug this one up, but I am having the exact same issue with the 2-3 shift with a Holley. Not buying a new kit, either.

Anybody got a pic of the lever they used for perfect shifts and kickdown with a Holley carb?

Thanks!

Last edited by KnuckleDuster; 07/28/15 06:09 PM.
Re: Drilling 727 Kickdown Lever for Lokar Kit [Re: cjskotni] #1880208
07/28/15 06:14 PM
07/28/15 06:14 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
Too Many Posts
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Posts: 28,312
Cincinnati, Ohio
Originally Posted By cjskotni
Guys,

I have been reading some of the more recent posts on here about the shortcoming of the Lokar kit namely that the ratio on the carb lever does not match the ratio on the kickdown lever causing the kickdown to be almost unadjustable.

I have the Lokar kit and I want to stick with it. I know Bouchillon has their version which is supposedly better but I don't want to pay 125$ for that right now...please don't suggest that.

The issue I am running into now is I can adjust to the point where the tranny kicks down at WOT but then the tranny won't upshift from 2nd to 3rd at light throttle until I let off the gas entirely. If I adjust it the other direction to the point where the tranny shifts properly at part throttle, it isn't far enough to kick down at all when at WOT.

I have read that you can make the ratio more correct by drilling the lever inward a bit to re-locate the stud thereby reducing the ratio.

Can somebody give me a rough idea how far in I should drill to move the stud in? I know this isn't an exact science but I don't want my lever to turn to swiss cheese doing this!

Any ideas would be appreciated. You can use my photo and make a dot where it worked for you maybe? <img src="/ubbthreads/images/graemlins/thumbs.gif" alt="" />

PS carb is a Holley 4150.


Not a great picture. I took a old throttle pressure lever and mounted it onto my linkage. I can now slide my pivot point up or down to get the stroke right. Might not look so great but works for me.

Better picture.


Last edited by Challenger 1; 07/28/15 06:23 PM.






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