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06-25-2005, 09:07 AM
| #1 |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
|  Offset max adaptors AND offset wheels ?
Another relativly stoopid question ! but one that requires experience to answer... First off i'd just best explain this is for a Clod, will be running on a JB tuber... Iv got some ally 3/4" offset maxx adaptors & am planing on fitting Maximizer beadlocks with LST tyres, this is a non-competitive crawler, so width for getting through "gates" is a non-issue, however i use a wheelchair to get about, so not rolling on a steep bank is very much an issue !! Question really is if i'v got 3/4" offset from the adaptors should i run stock maximizer beadlocks or X75's which would give me approx' 1-1/2" per side offset ? i know this should seriously stop sideways rolls, but will handling be seriously compromised by too much offset ? Like i said, stability is my main aim, not competetive crawlability..... Cheers for help in advance  Andy |
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06-25-2005, 09:22 AM
| #2 |
| Rock Crawler Join Date: Jul 2004 Location: OC, Oregon
Posts: 803
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Run the x-75's otherwise your tires will most likely rub on the links. |
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06-25-2005, 09:35 AM
| #3 | |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
| Quote:
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06-25-2005, 09:45 AM
| #4 |
| MODERATOR™   Join Date: Jul 2004 Location: Ohio
Posts: 18,928
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A real wide offset has a few disadvantages also. Firstly, the scrub radius. Definition: The distance between the extended centerline of the steering axis and the centerline of the tire where the tread contacts the road. The greater the scrub radius (positive or negative), the greater the steering effort and pivot binding that takes place. Long story short, the steering components are going to get seriously worked. It's because the contact patch of the tire is no where near the kingpin. The tire doesn't pivot around the imaginary line, it swings around that line, which requires much more effort. Given the same servo, expect weak steering. Also, the diffs are now much more exposed. When I run Heydco's adapters, and RPM's StableMaxx offset wheels, the diffs get beat on more than if I don't use the offset wheels. The best thing to do, would be get the center of gravity as low as possible, and don't use the additional offset wheels. Your mileage may vary of course. ;) I wish I could explain the pivoting vs swinging better. It's like holding your arm out fully extended to the side, and trying to push an object. Or NOT holding your arm out fully extended to the side and pushing an object. |
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06-25-2005, 10:14 AM
| #5 |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
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I understand totally mate coming from the nitro truck world it's similar to Hotbodies Lightning truggy with long wishbones vs the GS SUT with short wishbones and looong offset adaptors.....I realise i'll need a damn good servo to deal with it if i go "double offset" but im happy to throw some cash at quality servos provided it'll do the job once there, i suppose really the question should be will it turn without needing a football field !?! and will the stability increase enough to make it worth while ? Cheers for the input |
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06-25-2005, 10:23 AM
| #6 | |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
| Quote:
 Well, I can tell ya the HiTec 645 and a lot of offset don't do so well together. ;) | |
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06-25-2005, 12:09 PM
| #7 |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
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I probably would go with a pair of Hitec 5997TG's or similar , hopefully that should do the trick ? |
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06-25-2005, 01:20 PM
| #8 |
| Pebble Pounder Join Date: May 2005 Location: Oregon City, Or
Posts: 105
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Perhaps the 5955's would be better (not the 5995, the 5955) See: http://www.hitecrcd.com/Servos/allservos.htm |
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06-25-2005, 01:44 PM
| #9 |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
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From that table it does look that way, but i can only get 5997TG's or 5995TG's from my usual Hong Kong supplier So i guess its 5995TG's ? |
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06-25-2005, 04:59 PM
| #10 |
| Pebble Pounder Join Date: May 2005 Location: Oregon City, Or
Posts: 105
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Ya, I don't see why not. I doubt it has any incompatible features or functions (because of it's "robot servo" status). Plus it is by far the torquiest. Let us know how it turns out. |
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06-26-2005, 04:18 AM
| #11 | |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
| Quote:
Just noticed aswell from the close-up pics this (5995TG) seems to be what's being used on the "prize" crawler..... | |
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06-26-2005, 10:26 PM
| #12 |
| RCC Addict Join Date: Jun 2004 Location: ORegon
Posts: 1,002
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it should work fine. I would suggest a servo saver though. For that expensive a servo, you wouldn't want to risk it blowing. Also Robot servos have 180* travel. So the servo saver can soak up some of that travel. Most people don't run savers though for the response and torque absorbing issues.
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06-27-2005, 01:01 PM
| #13 |
| Newbie Join Date: Mar 2005 Location: Southport
Posts: 35
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Cheers, i wasn't planning on using a servo saver at all, especially with the Ti gear 5995's as i thought all the torque would probably over power a plastic s/saver anyway..... Anyone that knows different though im all ears |
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06-30-2005, 02:04 PM
| #14 |
| Rock Crawler Join Date: Nov 2004 Location: in a basement in Kalispell, MT
Posts: 857
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The 5995 works great, I'd recommend setting end point adjustment before connecting any links. I lost a servo saver from overtravel in the first minute. Also found out it wouldn't work in some a 3rd channels that didn't have end point adjustment.
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