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Unread 05-15-2009, 09:46 PM   #11
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Smile Re: dissapointed

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Originally Posted by tonyton View Post
Long ago, (before I knew better) I bought a torque kit from BU. It by-passes the foot pedal on/off, so the cart would idle and give more torque on take off. A heavier spring is provided for drive clutch. The key switch becomes the ignition on/off switch. Basically a spring and a jumper.
First, I couldn't get my cart to idle, so the by-pass would just keep the starter turning.
Second, the spring caused over-rev on take-off before it would engage.
It sounded fast but wouldn't move until the heavy spring engaged. It basically sucked.
I got a credit from my return.
The spring may be good for an application where you want a hi stall speed rpm. Like a drag cart! The real answer for me was the rear clutch. 28 deg. It does a good job.
Just FYI. hope this prevents someone..........
28 deg. works great... I don't think there is such an animal for Club Car.
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Unread 05-15-2009, 10:05 PM   #12
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Default Re: dissapointed

Yea, I don't know much about those anymore (CC) My last experience with CC was the old V-glides. That wasn't a real good experience but, they were real good AT THAT TIME. The point was, the back clutch was the key to my torque problem. They have to hop those up to get some more GRAB somehow.
Like I said, I don't know much about CC, so I'll shut up now.
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Unread 05-15-2009, 10:33 PM   #13
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Default Re: dissapointed

Moped
The problem is not the spring, What you are doing is not the correct fix.
Here's a example to explain whats going on. Lets say you have no power spring at all and you put cart on this hill and try to take off. Cart does not move at all. OK now lets put in a power spring. Same hill same results, What the heck. (you didn't expect the spring to add horsepower did you?)
The way the spring works is it slows the upshift of the clutch. If the cart didn't have the power to take off from a stop the spring can not correct this as the clutch isn't even turning so slowing the upshift will not help. This same theory applies to the ezgo 28 degree clutch. Now if you are moving and hit this hill clutch with spring or 28 degree will both help as they will downshift much faster to maintain movement.
Now here is the correct fix. Machining the rear clutch will allow it to start in a ratio that was not possible before machining. By STARTING in a lower gear it is actully easier to get the cart moving and now that it is moving upshifting slower due to a stiffer spring or less agressive helix angle (28 degree) will be a benifit. Basicly it gives it a granny gear to get things movin. To give you another example since everybody talks about the 28 degree for the ezgo a 36 degree clutch that has been machined will out pull any 28 degree clutch. You can take a ezgo cart with a 28 degree driven clutch and tie it to the back of a ezgo cart with the normal 36 degree driven clutch that has been machined and the machine clutch will win this tug o war everytime. Reason 28 degree is still starting at the same ratio as the unmachined 36 degree. We'll call this first gear. Again the 28 degree part just controls rate of upshift. The cart with the machined clutch is starting out in a higher gear ratio. (granny gear)

Take a machined clutch and add the heavier spring (or less aggressive helix) and your cart will climb like a mountian goat. Hope all this info makes sense and you see it dosent matter how many springs you add it does not change your starting gear ratio or add horsepower.

And since some think the shorter belt is the best ticket I will add this.
Some guys use shorter belts to acheive this different starting ratio and that works also. That works by the belt being tighter it is pulled lower in the drive pully which also changes the starting ratio. The shorter belt does acheive a higher starting ratio but still not as high as the machined driven clutch. Also the short belt comes along with some side effects that the machined clutch does not have. And with the machined clutch you can use the normal belt for your model which is much easier to remember.
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Unread 05-15-2009, 10:58 PM   #14
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Smile Re: dissapointed

Quote:
Originally Posted by BigBlockMan View Post
Moped
The problem is not the spring, What you are doing is not the correct fix.
Here's a example to explain whats going on. Lets say you have no power spring at all and you put cart on this hill and try to take off. Cart does not move at all. OK now lets put in a power spring. Same hill same results, What the heck. (you didn't expect the spring to add horsepower did you?)
The way the spring works is it slows the upshift of the clutch. If the cart didn't have the power to take off from a stop the spring can not correct this as the clutch isn't even turning so slowing the upshift will not help. This same theory applies to the ezgo 28 degree clutch. Now if you are moving and hit this hill clutch with spring or 28 degree will both help as they will downshift much faster to maintain movement.
Now here is the correct fix. Machining the rear clutch will allow it to start in a ratio that was not possible before machining. By STARTING in a lower gear it is actully easier to get the cart moving and now that it is moving upshifting slower due to a stiffer spring or less agressive helix angle (28 degree) will be a benifit. Basicly it gives it a granny gear to get things movin. To give you another example since everybody talks about the 28 degree for the ezgo a 36 degree clutch that has been machined will out pull any 28 degree clutch. You can take a ezgo cart with a 28 degree driven clutch and tie it to the back of a ezgo cart with the normal 36 degree driven clutch that has been machined and the machine clutch will win this tug o war everytime. Reason 28 degree is still starting at the same ratio as the unmachined 36 degree. We'll call this first gear. Again the 28 degree part just controls rate of upshift. The cart with the machined clutch is starting out in a higher gear ratio. (granny gear)

Take a machined clutch and add the heavier spring (or less aggressive helix) and your cart will climb like a mountian goat. Hope all this info makes sense and you see it dosent matter how many springs you add it does not change your starting gear ratio or add horsepower.

And since some think the shorter belt is the best ticket I will add this.
Some guys use shorter belts to acheive this different starting ratio and that works also. That works by the belt being tighter it is pulled lower in the drive pully which also changes the starting ratio. The shorter belt does acheive a higher starting ratio but still not as high as the machined driven clutch. Also the short belt comes along with some side effects that the machined clutch does not have. And with the machined clutch you can use the normal belt for your model which is much easier to remember.
Damm, Ya got a copyright on that??? I don't think all my posts ad up to all them words... Oh, by the way,,, Da Man is right on da money wit dat one...
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Unread 05-15-2009, 11:00 PM   #15
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Default Re: dissapointed

i got a 89 cc ds and it has 22x11x10 tires what spring should i buy? an help will do thanks
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Unread 05-15-2009, 11:04 PM   #16
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Smile Re: dissapointed

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Originally Posted by kamahaobuilt13 View Post
i got a 89 cc ds and it has 22x11x10 tires what spring should i buy? an help will do thanks
BigBlockMan is CPP. That's the guy I was tellin' ya to call...
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Unread 05-15-2009, 11:14 PM   #17
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Default Re: dissapointed

We still agree the rear clutch is the target?
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Unread 05-15-2009, 11:14 PM   #18
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Default Re: dissapointed

Tom, thanks for spelling all of that info out in crayollas No one has explained all of that better in one post since I have been here. There was something in there for everybody ... Maybe Somebody could make that a stickie so we don't loose it... Thanks again.
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Unread 05-15-2009, 11:15 PM   #19
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Default Re: dissapointed

This would be the best spring
http://www.cartpartsplus.com/club-car-power-kit.html
and having the driven clutch machined will give the maximum effect.
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Unread 05-16-2009, 10:52 AM   #20
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Default Re: dissapointed

hey bigblockman thanks so much for explaining that. it makes perfect sense. ill probably wait till fall and send you my clutch for machining. just wish i new were and how much to take off. im a machinist by trade and thats nothing to do. i just dont know what to do. so youll be seeing it. thanks again.
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