Can Accelerator Sweet Spot Be Adjusted?
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Can Accelerator Sweet Spot Be Adjusted?
My '73 has a sweet spot in the accelerator about 55 MPH. It is very easy to hold that speed but trying to hold a speed greater than that is very difficult. Without a lot of concentration I end up back at 55 before I know it. Is there anyway to adjust the throttle tension to make it easier to hold a higher speed without wearing out my right leg?
DC
DC
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
My '73 has a sweet spot in the accelerator about 55 MPH. It is very easy to hold that speed but trying to hold a speed greater than that is very difficult. Without a lot of concentration I end up back at 55 before I know it. Is there anyway to adjust the throttle tension to make it easier to hold a higher speed without wearing out my right leg?
DC
DC
Unless your linkage is worn, has binding or set up wrong, there should be no such thing. The Lokar setup mentioned is a great solution for any of these.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Maybe the spring you are using is a little 'stiff' [different from stock or, maybe, just too stiff for your leg]. You could probably stretch it a bit, or try replacing it with another (softer) spring. If there is another hole in the throttle bracket (closer to the pivot point), that you can try moving the spring there to see how it feels.
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Actually, driving 55 in Texas will get your butt run over big time, hence the need to solve this problem. 
Thanks for all the replies.
It is definitely not my leg. This is the only vehicle I drive (or have ever driven for that matter) that I've noticed this. I don't feel any obvious binding but I haven't physcially checked the cable, springs and linkages. It just seems the spring is tight and more so after 55. I'll double check everything and may play with some different springs. If I don't find anything, that Lokar setup sounds pretty good. What's the cost on something like that?
DC
Thanks for all the replies.
It is definitely not my leg. This is the only vehicle I drive (or have ever driven for that matter) that I've noticed this. I don't feel any obvious binding but I haven't physcially checked the cable, springs and linkages. It just seems the spring is tight and more so after 55. I'll double check everything and may play with some different springs. If I don't find anything, that Lokar setup sounds pretty good. What's the cost on something like that?
DC
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Actually, driving 55 in Texas will get your butt run over big time, hence the need to solve this problem.
Thanks for all the replies.
It is definitely not my leg. This is the only vehicle I drive (or have ever driven for that matter) that I've noticed this. I don't feel any obvious binding but I haven't physcially checked the cable, springs and linkages. It just seems the spring is tight and more so after 55. I'll double check everything and may play with some different springs. If I don't find anything, that Lokar setup sounds pretty good. What's the cost on something like that?
DC
Thanks for all the replies.
It is definitely not my leg. This is the only vehicle I drive (or have ever driven for that matter) that I've noticed this. I don't feel any obvious binding but I haven't physcially checked the cable, springs and linkages. It just seems the spring is tight and more so after 55. I'll double check everything and may play with some different springs. If I don't find anything, that Lokar setup sounds pretty good. What's the cost on something like that?
DC
Bracket assembly = $23.95
http://store.summitracing.com/partde...5&autoview=sku
Cable = $41.95
http://store.summitracing.com/partde...5&autoview=sku
Very clean and extremely adaptable/adjustable setup.
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Discovered that the previous owner had connected the throttle return spring to the kickdown hole which is a tighter stretch. Also discovered that he had installed two identical throttle return springs. Most of the dual spring setups I've seen before have two different looking springs such as this setup:
Mine has two of the smaller diameter longer springs as shown in the photo. I'll drive it later (after it stops being 98 degrees) to see what improvement moving the springs to the correct hole will bring. If not enough, I'll find another spring combo to try. Didn't find anything binding.
DC
Mine has two of the smaller diameter longer springs as shown in the photo. I'll drive it later (after it stops being 98 degrees) to see what improvement moving the springs to the correct hole will bring. If not enough, I'll find another spring combo to try. Didn't find anything binding.
DC
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Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Update
This turned out to be the problem. I put the Vette in the shop to have it tuned right after I moved the springs back to the proper hole and just got it back to test. Now the "sweet spot" is around 70 MPH and the throttle is much easier on the leg.
DC