|
| LinkBack | Thread Tools | Display Modes |
04-26-2009, 11:33 PM | #21 | |
Rock Crawler Join Date: Apr 2009 Location: NorCal
Posts: 529
| Quote:
This is a quote from the Losi site: "The 1/10 Comp Crawler features a front and rear solid axle with a worm gear drive. The worm gear functions as a breaking device while the power supply is idle, however when power is supplied the efficient design of the worm gear eliminates "torque twist" which commonly occurs in shaft driven rock crawlers. The heat treated steel worm gear also utilizes a smaller gear assembly, thereby maximizing ground clearance under the axle housing. The 1/10 Comp Crawler features a front and rear solid axle with a worm gear drive. The worm gear functions as a breaking device while the power supply is idle, however when power is supplied the efficient design of the worm gear eliminates "torque twist" which commonly occurs in shaft driven rock crawlers. The heat treated steel worm gear also utilizes a smaller gear assembly, thereby maximizing ground clearance under the axle housing." Now with a ring and pinion diff the pinion is on the side (most of the time) and when transmitting power to the ring gear (sitting vertically) it forces the ring up or down depending on the direction of travel. This is what twists the whole axel and transmits thru the suspension the twisting of the same axel causing us all the headache. Now go here; http://www.losi.com/Products/Default...rodID=LOSA0051 and look at how the driveshaft is directly above the the axels drive gear. When it transmits power it is a puling or pushing force....that will not twist the whole axel the way we all cuss at. I'm not saying there is NO torqe created,,,but as you stated it (IMHO and the Losi engineers) is reduced to nothing. BTW this is my first post and just want to say hello and not start a war,,,,just stir up some more VERY productive bashing,,,,:-P And I'm thinkin the wait is gonna be worth it,,,I'm holding out for the Losi | |
Sponsored Links | |
04-27-2009, 06:50 AM | #22 |
Newbie Join Date: Jun 2008 Location: North Ga.
Posts: 40
|
Personally I am waiting for the losi. I have yet to see a creeper in the hobby store. That is one thing to consider. Can or will you find parts near you or have to order online. I admit I don't like to be one of the first to buy something new since they usually have a few problems they don't expect but I'm biting the bullet for my first crawler.
|
04-27-2009, 08:36 AM | #23 | |
Rock Crawler Join Date: Mar 2009 Location: Cottontown
Posts: 880
| Quote:
cheers | |
04-27-2009, 12:48 PM | #24 |
Newbie Join Date: Dec 2006 Location: Downingtown, PA/ Milford, DE
Posts: 7
|
I always liked Losi but this doesn't make any sense. First of all most of you have it all wrong. Suspension doesn't effect TT, it the other way around. Think about this. Regardless of whether you have Bevel gear, Worm gears or Hypoid gears you will get Torque Twist. Why? Because of EQUAL AND OPPOSITE REACTIONS. Let use the layout of an Axial AX-10 (since everyone knows what they look like). Now if you where to "plant" or glue the rear wheels down to a surface and try to accelerate forward the chassis would TWIST the opposite direction that the motor is spinning because it the drive shaft can't twist then the motor and everything its attached to must (in the opposite direction). Even if the suspension was "blocked" the force on the left front would be less then that of the right rear. Do you see side to side torque twist on most ATV and motorcycles?? NO. Because the rotation of mass (the crank ect) is perpendicular to the direction of travel, thereby twisting the bike about a point somewhere about a point between the CG and crankshaft axis . Most of them are designed to naturally (physics) plant the drive rear tire(s). |
04-27-2009, 01:18 PM | #25 |
RCC Addict Join Date: Feb 2007 Location: Chucking rocks at your little truck!
Posts: 1,353
|
WOW, what a cluster. I've been driving the Losi 2.2 Comp crawler for about 3 months and have had no issues with this TT soundcolor has witnessed . Everyone has an opinion which is fine but leading people to think Losi is full of BS and the rig does not work like decribed on the Losi site needs to stop. Try one and you'll like it, if you don't then sell it and try something else. Thanks. Jay |
04-27-2009, 01:56 PM | #26 | |
Newbie Join Date: Dec 2006 Location: Downingtown, PA/ Milford, DE
Posts: 7
| Quote:
-Brad | |
04-27-2009, 02:11 PM | #27 | |
RCC Addict Join Date: Feb 2007 Location: Chucking rocks at your little truck!
Posts: 1,353
| Quote:
Thanks for the support. | |
04-27-2009, 02:51 PM | #28 |
I wanna be Dave Join Date: Jan 2009 Location: By a lake in Thornton
Posts: 2,218
|
i have an axial. i comp w/ a lot of bergs and a losi now and again. id buy the Losi. but hey, thats just like my opinion man. |
04-27-2009, 03:03 PM | #29 |
Newbie Join Date: Dec 2006 Location: Downingtown, PA/ Milford, DE
Posts: 7
|
I retrospect to what i said earlier, only if the t-cases and final gear ratio were the same, would they all torque twist. What Losi has done is put all the gear reduction at the axle and not in the t case. It is the T-case torque multiplication that causes the twist. If I am correct the drive shaft torque is actually less on the Comp Crawler than it is on a bevel gear crawler because of all the multiplication at the axle. |
04-27-2009, 03:06 PM | #30 | |
RCC Addict Join Date: Feb 2007 Location: Chucking rocks at your little truck!
Posts: 1,353
| Quote:
| |
04-27-2009, 03:08 PM | #31 |
Quarry Creeper Join Date: Nov 2008 Location: Vacaville
Posts: 249
|
have you seen a venom compete? i have and its a joke, all of them have broken parts and no support:-( just my 2 cents buy the losi
|
04-27-2009, 03:25 PM | #32 |
Pebble Pounder Join Date: Dec 2008 Location: Cen Cal
Posts: 148
|
No support??? Why don't you check out the Venom section before typing freely. Oh and I did run a comp course with a couple Axials, a ARTR and a modded kit truck. Mine is basically stock (tires and shock placement) and did as well or better then them. I did not break either. Yeah there was issues with parts being over heat treated but that has been taken care of already.
|
04-27-2009, 03:30 PM | #33 |
I wanna be Dave Join Date: Mar 2009 Location: sittin in the sky
Posts: 4,630
|
id take a losi any day of the week i kno losi has great products and never has losi let me down nor has axial
|
04-27-2009, 03:47 PM | #34 |
I wanna be Dave Join Date: Jan 2009 Location: By a lake in Thornton
Posts: 2,218
|
id buy; HH motors ESC and everything electronic. Axial Tranny Dna Dig DNA SSS chassies. HB Rovers, DX3R and whoop on everybody lol |
04-27-2009, 04:37 PM | #35 | |
Quarry Creeper Join Date: Aug 2007 Location: Morrison Crawlerado
Posts: 353
| Quote:
Greeeaaattt... another torque twist debate. I think people get too bent out of shape over torque twist. If your rig is set up right, it is pretty negligible and sometimes it can even help you pull the right front up onto an obsticle. I'm starting to realize that this sport is about 80% driving skill and 20% rig capability. Give any top driver a decent shafty rig and he'll torque twist his ass over any course all the way to the top of the podium! | |
04-27-2009, 04:50 PM | #36 | |
Rock Crawler Join Date: Mar 2009 Location: Cottontown
Posts: 880
| Quote:
"Suspension doesn't effect TT, it the other way around. Think about this." Your right, maybe I wasnt clear on what I was trying to say. TT doesnt effect TT, But it is the suspension that allows the TT to be shown as a flexing, or twisting motion in the chassis. Then you said "I retrospect to what i said earlier, only if the t-cases and final gear ratio were the same, would they all torque twist. What Losi has done is put all the gear reduction at the axle and not in the t case. It is the T-case torque multiplication that causes the twist. If I am correct the drive shaft torque is actually less on the Comp Crawler than it is on a bevel gear crawler because of all the multiplication at the axle." I disagree with this. It shouldnt matter where the reduction (or gear multiplication) takes place. The end result is that the tires see the same reduction wherever the reduction takes place. In a real crawler they have an actual transfer case, that takes power from one way, and splits it, and then sends it to opposite ends of the vehicle. Generally, gear reduction is spread out around the various bits of the driveline. In our crawlers you can have a diffrent gear ratio for the front and rear axles regardless of whats coming out of the trans. I think. (I'll have to do some studying up on the subject) Darryl | |
04-28-2009, 09:32 AM | #37 |
RCC Addict Join Date: Feb 2007 Location: Chucking rocks at your little truck!
Posts: 1,353
| |
04-28-2009, 09:49 AM | #38 |
I wanna be Dave Join Date: Jan 2009 Location: By a lake in Thornton
Posts: 2,218
|
LOL dont be offended rubba. when it comes out, a lot of foots will have to go in a lot of mouths... or maybe asses, because that seems to be where a lot of this shit is being pulled from... ZING! |
04-28-2009, 11:34 AM | #39 |
Newbie Join Date: Mar 2009 Location: southwest
Posts: 44
|
what hop ups are available for the creeper , berg, losi, kyosho
|
04-28-2009, 09:09 PM | #40 | |
Rock Crawler Join Date: Mar 2009 Location: Cottontown
Posts: 880
| Quote:
No prob. Sorry for getting pissed back. And ya know what, I might be surprised. Losi might have pulled it off. I personally dont see a way around it, but you never know. I may well end up eating my words. If I'm wrong, I'll let you donkey punch me in the back of the head. No seriously I will. Under what conditions you ask. Must be a stock creeper, with a motor designed for use in it, gearing properly set up for a crawler, suspension stock, and without excessivly cranked down shocks/springs. Of course now that I have agreed with this LOSI will no doubt rush production just to get it out there so they can see me get hit. | |
| |