Understanding spools...
#16
Tech Champion
iTrader: (15)
Originally posted by fatdoggy
Front oneway forever, I dislike running dual diff's so a spool up front would be horrible.
Q? when you change to a spool what would you do to a standard dual diff setup? increase toe-out? Get rid of front swaybar?...
Front oneway forever, I dislike running dual diff's so a spool up front would be horrible.
Q? when you change to a spool what would you do to a standard dual diff setup? increase toe-out? Get rid of front swaybar?...
#17
Tech Champion
iTrader: (17)
Yeah, just make some minor changes to get yourself a little more turn in. Remember, you're going to be braking hard which transfers a lot of weight forward. I added a little rear droop to get it to transfer even more forward. Also depending on what car you're running, on the Losi you can use the overdrive pully on the front to add some turn in on the car. My spool is a 41 tooth overdrive pully with diffrings and steel outdrives all JB Welded together. Like I said, it's murder on CVD's but mad grip coming out of corners and awesome amounts of braking.
#18
Tech Elite
iTrader: (13)
Just got back from testing at our carpet track... first time with a spool. Ran my MI2 on foams... started with my base setup for this track and I didnt have to change anything. The car turned in great and the spool eliminated my "diffing" problem coming out of the corners. so far I like it!
I could hear my front CVD's chattering in the tight corners so I am sure its harder on them
I could hear my front CVD's chattering in the tight corners so I am sure its harder on them
#22
Hi Guys,
Spools are really hard on the front universals on most cars and chattering is pretty normal. You can use some Tamiya Anti-wear grease on the CVD joints, and on the outdrives of the spool. This will help cusion and reduce the rate of wear on these parts. I ran the Reedy Race this weekend as well and I was surprised that I didn't have to rebuild my universals at all this weekend.
Sometimes spools are better on tracks with lower bite as well. The tendency of the spool wanting to make the car push will help stabilize the car on a low bite tracks
Steve Wang
Spools are really hard on the front universals on most cars and chattering is pretty normal. You can use some Tamiya Anti-wear grease on the CVD joints, and on the outdrives of the spool. This will help cusion and reduce the rate of wear on these parts. I ran the Reedy Race this weekend as well and I was surprised that I didn't have to rebuild my universals at all this weekend.
Sometimes spools are better on tracks with lower bite as well. The tendency of the spool wanting to make the car push will help stabilize the car on a low bite tracks
Steve Wang
#23
I'll give a spool a shot on carpet this weekend(Ball diff locked up completely). I've never run a ball diff on carpet let alone a spool so it will be a very big learning curve. Thanks MikeR, jkerr0043 for the setup info.
#24
Tech Master
surely lowering front shock oil or raising rear shock oil would yield the greatest difference when running a spool?
#26
Registered User
Xtreme RC Cars Magazine March'04 issue have 4 pages article explain diff, one way, and spool very well. Answer most of our questions.
#27
Originally posted by fatdoggy
I'll give a spool a shot on carpet this weekend(Ball diff locked up completely). I've never run a ball diff on carpet let alone a spool so it will be a very big learning curve. Thanks MikeR, jkerr0043 for the setup info.
I'll give a spool a shot on carpet this weekend(Ball diff locked up completely). I've never run a ball diff on carpet let alone a spool so it will be a very big learning curve. Thanks MikeR, jkerr0043 for the setup info.
#29
Carpet with a corally C4ag. A pic of the track is below, but the track infield is tighter now.
http://www.rctrack.com/images/facility/track1.jpg
I only ran stock through last winter so I got away with a front one-way(car actually ran pretty well). In 19t or mod though dual diff's were the norm. I'll definately be running either a tight diff or a spool though next winter though after trying it today.
http://www.rctrack.com/images/facility/track1.jpg
I only ran stock through last winter so I got away with a front one-way(car actually ran pretty well). In 19t or mod though dual diff's were the norm. I'll definately be running either a tight diff or a spool though next winter though after trying it today.
#30
Tech Elite
iTrader: (32)
Spools with foam tires will act exactly like a oneway on power.Not a good thing with Foam on carpet.Make the car unstable because of all the onpower steering.I have heard of only a couple people having success with a spool on foam on carpet.Oneway with rubber tires on carpet on the other hand will work fine depending on the track layout.