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-   -   getting away from belts (http://www.oople.com/forums/showthread.php?t=14175)

rcracer1 19-09-2008 04:17 PM

getting away from belts
 
I am currently selling my xx4 to go towards shaft drive. Just getting your opinion,

which buggy would feel like the xx4 driving: Lazer or B44?

I do like stick packs but they don't usually handle like saddle type . I don't race at any tracks yet but i do like finding jumps etc... nearby

:woot:

Borat 19-09-2008 04:31 PM

Are you on crack?

ruf 19-09-2008 06:18 PM

1) Nothing handles like an XX-4. This is Gil Losi Jr.'s masterpiece as far as I'm concerned. The reason it handles so well is the suspension geometry, not the saddlepack chassis layout.

2) Stick pack lipos are light enough to where you can balance them with most electronics. If you have really small lightweight electronics, then a little ballast weight will even it out. Though you don't race, we always have to add ballast to get back to legal weight anyways. If you are using NiMH, then balance may become an issue.

Richard Lowe 19-09-2008 07:28 PM

Quote:

Originally Posted by ruf (Post 161293)
The reason it handles so well is the suspension geometry, not the saddlepack chassis layout.

I must disagree there, a XX4 and X5 with the same setup on feel very different. Both cars have the same geometry and nigh on identical weight distribution, yet feel different to drive.

Granted the X5 will have more roll inertia (wide cell spacing) and less polar/pitch inertia (due to the motor and cells being at opposite ends of the car in the XX4), but the main difference in handling IMO is mostly down to all the elastic bands connecting the front and rear wheels in the XX4 :)

Stu 19-09-2008 07:40 PM

Quote:

Originally Posted by Richard Lowe (Post 161309)
I must disagree there, a XX4 and X5 with the same ........blah.........blah.....................blah :)

Window masks?

ruf 19-09-2008 07:59 PM

I'm not arguing that changing the position of your cells won't change the way a car feels. The X5 also uses a (asymmetric) saddlepack configuration, so it's not the saddlepack layout that makes it handle differently. I can't say that I've driven an X5, but as I understand the design philosophy, they greatly reduce the polar moment of inertia via mass centralization which results in a completely different feel while maintaining static weight distribution.

What I'm trying to say is that defining chassis handling by a category such as saddlepack and stick pack is pretty arbitrary, especially if you return the balance with ballast. I feel that there are larger factors at play such as the suspension geometry and the position of the battery - regardless of saddlepack or stick pack. Case in point are those of us running lipo stick packs in the XX-4.

ashleyb4 19-09-2008 08:08 PM

Nothing handels like a xx4 Thats why im keeping mine its a beutiful car to drive on sunday at coventry It was good every where but seeing it go around some of the corners it made me smile so much it was not my best result but it was one of the happiest days racing ive had Because the car did exsactly what i wanted it to do and it was SSSOOO controlable.

A

_sleigh_ 19-09-2008 09:09 PM

Wooooow there young Ash. Look just right of the "m" key, you'll see two other very important keys. :thumbsup:

jimmy 19-09-2008 09:12 PM

He spluttered that out without breathing! :o

ashleyb4 19-09-2008 09:12 PM

Which ways right ?

A

Southwell 19-09-2008 09:14 PM

Then his head exploded.

ashleyb4 19-09-2008 09:15 PM

Quote:

Originally Posted by ashleyb4 (Post 161340)
Nothing handels like a xx4, Thats why im keeping mine its a beutiful car to drive. On sunday at coventry, It was good every where but seeing it go around some of the corners it made me smile so much. It was not my best result but it was one of the happiest days racing ive had Because the car did exsactly what i wanted it to do and it was SSSOOO controlable.

A

I can sort of do it if i try lol

Saturday was pretty good to, last night wasnt to good my cr turned into a red arrow with lots of smoke pouring out of it.

A

_sleigh_ 19-09-2008 09:15 PM

Quote:

Originally Posted by ashleyb4 (Post 161364)
Which ways right ?

Theres a joke there somewhere, but maybe it's a little "old " for you. :lol:

ashleyb4 19-09-2008 09:18 PM

oooo the < and > keys

rcracer1 23-09-2008 08:45 PM

great points. I guess I'm riding a pony because some of it went right over the lid!!

anyway, what then differentiates the xx4 with the B44 let's say? the motors are still up front. the batteries are in similar positions.


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