RC-Monster Forums - Brushless LST2 conversion

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- - Brushless LST2 conversion - This is how to do it!!! (https://www.rc-monster.com/forum/showthread.php?t=17575)

Quote:

Originally Posted by TexasSP (Post 287713)

Thanks, I had thought the 63t was the biggest spur for the LST2. Although looking at the 70t spur it looks as though it will not work with the TDR single speed hub. I looked and realized the 22t pinion and 66t spur will put me right at 50. My main concern is not the speed as much as can the motor handle moving it.

I recently had a cc2200 in a savage geared for 50+ on 5s lipo and it did fine. The savage was having issues, but the tires were not balanced.

The 70t may not work with the tdr hub, never tried to fit it on.

I will try first with the thing geared at 60. If temps come in too high I will get the 66t spur and 22t pinion. All the feedback I have heard on the CC 2200 has been good so I will keep my hopes up.

Quote:

Originally Posted by lincpimp (Post 245728)

After that I swapped the gears in the tranny to get a slighly higher ratio. Simple mod, requires slight clearancing on the inside of the trans case. Completely reversible too. Basically threre are 2 gears in the tranny, a 22t and a 23t, I swaped them to help out my slower turning motor (1500kv on 6s) get to 40mph with my available gearing choices.

you can now also use the lst xxl output gears to get almost the same reduction as the swap mod (swap mod 1,89 / xxl gears 1,91). the output gears in the xxl are 29/16 (losb3119). the output gears in the lst2 are 30/15.
you can also do both: swap mod&xxl output gears (1,73 reduction)

Any of you guys racing the LST2's??

I was watching this video of a LST2....and I was amazed. Heck I don't think my Revo could handle that well.

http://www.youtube.com/watch?v=jaJpZt4X9Bs

Quote:

Originally Posted by jzemaxx (Post 317189)

Any of you guys racing the LST2's??

I was watching this video of a LST2....and I was amazed. Heck I don't think my Revo could handle that well.

http://www.youtube.com/watch?v=jaJpZt4X9Bs

The driver has excellent jump placement skills( judges the how far to jump and where to land very well) plus I think those huge shocks really help.

Looks like its not your ordinary stock LST2....

http://www.forum.losi.com/showpost.p...73&postcount=9

Quote:

Originally Posted by jzemaxx (Post 317204)

Looks like its not your ordinary stock LST2....

http://www.forum.losi.com/showpost.p...73&postcount=9

Oh yeah you're right. Wish I could see the pics in the losi forum. Thats not enough of a reason to join though.

Here is the pics posted....

Having both the LST2 and Revo I truely believe set up properly the LST2 could out handle the revo. It definitely handles rough terrain better by far. I feel that sometimes the revo has too many tuning options making it a pain to get right as well.

Quote:

Originally Posted by TexasSP (Post 317234)

The one above definitely shows the capability of a LST2 setup to race.

Quote:

Originally Posted by lincpimp (Post 272072)

Started working on adapting the muggy bellcrank servo saver steering setup to the lst. It is one of the things that I do not like about the lst, and countless fixes exist for the steering, but none actually address the design's short comings.

I have made decent progress and should have some picture ready material soon. This mod will require a new chassis plate to be made, as I will run a single servo, and it will not reside in the facotry mount holes.

I also plan to extend the chassis length 1.55 inches between the front bulk and the tranny. I arrived at this length as the front center driveshaft can be replaced with a lst1 wheel driveshaft. This will do 2 things, give me more room to mount the battery tray, and the added wheelbase will tame the wheelies a bit. Plus my current setup is slightly nose heavy, moving the lipo an inch back will help that too. And I get to use an off-the-shelf part, and I have about 8 of them.

It is a reasonably simple mod, but does require trimming the side braces and front top brace. This mod can be done with the stock length center driveshafts, but the brake and reverse servos may need to be moved around slightly.

Pics to come soon.

Any progress with the steering mod? ...pics? :intello:

Yeah, I actually did it to my 6x6 lst, check the project X section, thread is titled my latest project x. I have not made a new chassis plate for either truck yet, but I should be back working on them by christmas. So I have not actually mounted a servo yet.