lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Big Block Talk! > Sled Engine Swaps


Post New Thread  Reply
 
Thread Tools Display Modes
Old 03-05-2013, 01:24 PM   #1
Larboc
Getting Wild
Columbia
 
Join Date: Mar 2012
Location: painesdale, mi
Posts: 134
Default Tuning a sled clutch for golf cart use

Any suggestions for a starting point for tuning for a comet 102c in a cart using the stock driven pulley on the axle pinion?

Right now the engagement speed is a little higher on mine than it needs to be on a golf cart. Yamaha 540cc SRV sled engine with the stock comet 102c primary clutch with a-1 weights and a red spring.

I'm wondering what other people have done to make their primary's work with the stock golf cart secondary's.

I'd like it to engage at a lower RPM and also shift out more for a given part throttle RPM than it does now. I'm thinking about just going with a softer spring in general would be a good place to start and leave the weights as is for now. But I don't know what spring to purchase. I don't really want to spend $30 per spring for a bunch of springs that are complete guesses.

Also, is there a good place to find a dust cover for the 102c for dirty environment use?
Larboc is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Old 04-12-2013, 04:08 PM   #2
KoogarKiller
Gone Wild
 
KoogarKiller's Avatar
Mixed Breed
 
Join Date: Jan 2010
Location: Disfuction Junction AZ
Posts: 174
Default Re: Tuning a sled clutch for golf cart use

Pink Spring!!!!

I love mine.. takes off around 3000 nice and smooth.. with the recommended stock (exciter 440) silver spring it engaged way too hard.. busted a little wheely out of the hole and I was afraid the rear end wouldn't hold up to the snap
KoogarKiller is offline   Reply With Quote
Old 04-12-2013, 04:29 PM   #3
DOOmsman
Gone Wild
 
DOOmsman's Avatar
Yamaha
 
Join Date: Jul 2008
Location: Reddick IL
Posts: 11,217
Default Re: Tuning a sled clutch for golf cart use

Koogars right here is more than you need to know.


http://www.bing.com/images/search?q=...electedIndex=0
DOOmsman is offline   Reply With Quote
Old 04-12-2013, 08:16 PM   #4
sho305
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 15,433
Default Re: Tuning a sled clutch for golf cart use

http://www.hiperf.com/acatalog/Snowm...rings_117.html

You want a shorter spring if you want lower engagement. The spring stiffness and weights tune shift rpm, lighter spring is lower as heavier weights is lower. But you still need to keep peak WOT rpm in the range to get full power. To change how it works for example you might have to go with heavier spring and heavier weights. Around here polaris parts were cheaper for some reason, and were the same stuff for the 102c I had on my srv. I ended up using the purple spring, the high altitude setup it worked great, but that was in a sled. It did engage smooth. But I swear it had a black spring in it and it engaged pretty low, then would rev later. Anyway, a shorter spring the same tension should lower engagement. The shift out is mostly in the secondary. If you have a preload secondary you can unwind it.
sho305 is offline   Reply With Quote
Old 04-13-2013, 09:56 PM   #5
Larboc
Getting Wild
Columbia
 
Join Date: Mar 2012
Location: painesdale, mi
Posts: 134
Default Re: Tuning a sled clutch for golf cart use

Quote:
Originally Posted by DOOmsman View Post
Koogars right here is more than you need to know.


http://www.bing.com/images/search?q=...electedIndex=0
wow that's a nice chart. any chance of that chart for a 102c being out there somewhere? 94c uses totally different springs and weights.
Larboc is offline   Reply With Quote
Old 04-14-2013, 12:04 PM   #6
sho305
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 15,433
Default Re: Tuning a sled clutch for golf cart use

One thing you can look at is a sled with normal setup and then a high altitude kit. The HA kit will raise engagement rpm and shift rpm will be nearly the same or only slightly higher. So you look at the spring rates and weight size and see what they changed. The HA kits tend to rev more easily when you gas it.
sho305 is offline   Reply With Quote
Old 04-14-2013, 01:43 PM   #7
speedgolfer
Gone Wild
 
speedgolfer's Avatar
E-Z-GO
 
Join Date: Mar 2013
Location: Southern mn
Posts: 243
Default Re: Tuning a sled clutch for golf cart use

and another thing you do not want more then 20 thousands clearence on the belt sitting in the primary( might have to remove shim under spider to get less clearence)
remember the primary spring has 2 rates the pre load(engagement) and the rate (shift out)
there is allot of spring combos you could run and heavier weights
speedgolfer is offline   Reply With Quote
Old 04-25-2013, 06:59 PM   #8
Larboc
Getting Wild
Columbia
 
Join Date: Mar 2012
Location: painesdale, mi
Posts: 134
Default Re: Tuning a sled clutch for golf cart use

Quote:
Originally Posted by KoogarKiller View Post
Pink Spring!!!!

I love mine.. takes off around 3000 nice and smooth.. with the recommended stock (exciter 440) silver spring it engaged way too hard.. busted a little wheely out of the hole and I was afraid the rear end wouldn't hold up to the snap
Any idea as to which pink spring? I see there is a 92 and a 72 rate pink spring (why? I don't know).

Any idea what weights you had? I might just try copying your setup as a starting point.
Larboc is offline   Reply With Quote
Old 07-19-2013, 08:03 PM   #9
sho305
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 15,433
Default Re: Tuning a sled clutch for golf cart use

Some of the springs are for different clutches, some charts show them all.
sho305 is offline   Reply With Quote
Old 08-02-2013, 06:13 AM   #10
rvkersh
Gone Wild
 
rvkersh's Avatar
E-Z-GO
 
Join Date: Apr 2012
Location: Dansville, NY
Posts: 396
Default Re: Tuning a sled clutch for golf cart use

I have used both springs and either one works well, the 92 is just a couple hundred more rpm engagement. Find some stock ezgo weights from a 90 or newer, they will fit the 102c. They will give you the quick shift you need with that motor. The sock ezgo cover will fit the 102c.
rvkersh is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Big Block Talk! > Sled Engine Swaps


Thread Tools
Display Modes


Similar Threads
Thread Forum
CVTech06 Clutch Tuning Big Block Talk!
Tips & Hints for installing Clutch Tuning Kit, Removal of Drive Clutch Gas Club Car
Clutch Tuning Kit????? Gas Club Car
Sled engine to golf cart swap Big Block Talk!
Clutch tuning Big Block Talk!


All times are GMT -5. The time now is 02:14 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. © 2006-2017 Buggiesgonewild.com. All rights reserved.