|
| LinkBack | Thread Tools | Display Modes |
03-13-2012, 08:49 PM | #41 |
RCC Addict Join Date: Nov 2006 Location: Lowell, Arkansas
Posts: 1,307
| Re: What is Torque Twist (TT) and how to fix it.
The counter rotation driveshafts idea has a little bit of merit. But only if all 4 tires had equal traction. TT shows up most while climbing. During a climb, there's very little weight on the front tires, and a bunch of weight on the rear tires. More weight on tires = more traction. (I know it's not a 100% proportional relationship) So, with only a little weight on the front tires, there's not much traction for the front tires to work with, and the rear tires having a bunch of traction, well you can guess the result. Counter rotating driveshafts is an interesting idea, but not worth the effort. |
Sponsored Links | |
03-13-2012, 08:53 PM | #42 | |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. Quote:
| |
03-14-2012, 07:49 AM | #43 |
Quarry Creeper Join Date: Feb 2009 Location: French Guiana
Posts: 433
| Re: What is Torque Twist (TT) and how to fix it.
Hello, I had been interested in the counter rotation driveshafts idea, but after I build a lab crawler, the Experimental Bull'Ax , with front Bully axe and rear AX-10 axle A stange project, but instructive On this video, you can see a little TT at the end. From this machine I concluded from it that the TT comes mainly from the rear axle. |
03-14-2012, 12:32 PM | #44 |
Shelf queen Join Date: Aug 2008 Location: Internet
Posts: 5,857
| Re: What is Torque Twist (TT) and how to fix it.
What if... A counter rotation unit was used WITH... a weight ring (to act as a gyro) on the front driveshaft (Ideally, up on the front diff yoke for both GC & effect since it will be as far forward as possible (so perhaps less mass is needed)? |
03-14-2012, 05:28 PM | #45 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it.
IIRC gyros are illegal. Even if they aren't, I doubt that the driveshaft would spin it fast enough to do much good. You'd really have to get it zinging to have much of an effect. And it would have to lay flat.
|
03-14-2012, 05:50 PM | #46 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:52 PM | #47 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:52 PM | #48 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:53 PM | #49 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:55 PM | #50 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:56 PM | #51 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 05:58 PM | #52 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it.
I guess so.
|
03-14-2012, 05:58 PM | #53 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 06:00 PM | #54 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 06:02 PM | #55 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| Re: What is Torque Twist (TT) and how to fix it.
That empirical scientist looks more like a tranny than a scientist.
|
03-14-2012, 06:04 PM | #56 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 06:11 PM | #57 |
Shelf queen Join Date: Aug 2008 Location: Internet
Posts: 5,857
| Re: What is Torque Twist (TT) and how to fix it.
Are you certian one of these on the driveshaft won't help? |
03-14-2012, 08:14 PM | #58 |
Suck it up! Join Date: Mar 2008 Location: Arkansas
Posts: 11,652
| Re: What is Torque Twist (TT) and how to fix it. |
03-14-2012, 08:24 PM | #59 |
Rock Crawler Join Date: Mar 2011 Location: hampton
Posts: 984
| Re: What is Torque Twist (TT) and how to fix it.
i had a nice "test" typed out last night, then henry county lost a power sub station and the power went out before i was done typing ill try it again. TT starts with the motor, and is made worse my resistance to movement. heres my test. if you have a rear drive car/truck, go start it up. now rev it a few times. what happens? front left lifts,rear right spuats= torque twist, no gears,tranny,or drive shafts involved do the same in a front wheel drive car with a transverse engine. no twist, maybe a slight back and forth rock now take the rear drive car, drop it in gear and hammer it. it will twist worse because the engine is pulling up on the left motor mount same as it did in park/netural. but now the forward movement is lifting the front and making it lighter so more weight is pushing against the rear springs, but at the same time, the chassis is twisting to the right because of the engine torque and putting a lot more weight on the right rear spring than any of the other 3 springs. its gonna compress more because any one spring isn't made to hold most of the weight by its self FWD cars wont twist, just loose traction on there drive wheels because the weight is moving to the rear of the car |
03-14-2012, 08:59 PM | #60 |
Rock Crawler Join Date: Oct 2011 Location: Great Outdoors
Posts: 651
| Re: What is Torque Twist (TT) and how to fix it.
Tests are good. Is the RF being pushed into the air by some torque reaction coming through the driveshaft, or being pulled into the air by a twisting chassis? What if we do the angle board thing with the rf shock disconnected. If the drivetrain torque is twisting the axle up, it still will. But if the tire is being pulled up by the chassis, it will now stay on the board. |
What is Torque Twist (TT) and how to fix it. - Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Help me understand, explain, and fix or solve torque twist | opek | General Crawlers | 85 | 02-22-2012 06:45 PM |
torque twist... | 73fordhighboy | Axial AX-10 Scorpion | 10 | 01-11-2010 11:46 PM |
torque twist | renzo | Newbie General | 8 | 08-09-2009 07:47 PM |
Torque twist | Greatscott | Axial AX-10 Scorpion | 1 | 04-01-2009 09:23 PM |
Torque Twist? | Mini | Newbie General | 3 | 12-13-2008 10:19 PM |
| |