Optima Mid and Brushless

[Bagman]

Just a quick question for those in the know. How many turn brushless motor should you go to on a bog standard Optima Mid?

Cheers in advance

[chonkat]

Ooooh, oohh!!! Did you get any answers elsewhere, or figure it out ??? I'm wondering exactly the same thing now--- How many turns motor should I get if I go brushless with my Optima Mid?!?!

Also-- Can I use NiCd's for now with, say a Mamba ESC and motor and then hop over to LiPo?? Would the NiCd's just have really short run times?

Any input greatly appreciated!!!

Jon Q

[peetbee]

Missed this first time round!

I've run one with a 10.5 in it for 6 meetings and wouldn't want to use anything more powerful as I'm not sure that the belt would cope.
(that's with lipo too)

[Belsten]

I ran a 13.5 in mine indoors and I DOMINATED :thumbsup:

[VintageRacer]

Would I be safe with a 13.5 in a chain drive Optima too?

[kartstuffer]

Talking of Optimas ,does anyone know where to get front hubs and wishbones for a turbo optima.Cheers.:thumbsup:

[chonkat]

Thank you guys! Still reading up- cool that now there've been leaps in motor power and power src tech! Well, I guess I should've known, it hAs been since like 1990!

Knowing you've got Optimas- Other than paying like $70 and/or waiting on eBay, any ideas about where to get a front shock for mine? Or "other" shocks that would be sized about right (so far I only know to look for gold, platinum, or the red option house ones)

[dodgydiy]

time to get the ruler out..... on a mid the associated 2wd fronts fit the front ok but you need to restrict their travel, rears are ok too, seem to remember using different length shafts although i am not sure, been a long time. old optima is a bit more difficult, mine used to have brimod shocks on an upright fibreglass tower at the front and brimod on standard tower rear

[superdez]

At a guess I would say associated 0.56 stroke should fit.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LX2587&P=7

[chonkat]

Ordered the associated 0.56 for the front of my Optima Mid, with 2 sets of springs to test the tensions... and 50W oil...

Any opinions on this combo for a stock Optima Mid?
Associated 540R 3900kV Motor/XP SC450-BL ESC
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXZMX2&P=0

Thanks,

Jon Q

[TallTopher]

I've just put a 3900KV Toro into one of my Optima Mids. It's fast enough to worry me a little about how it will wear but it sure is fun. Any observations by others on how they hold up?

[Welshy40]

I ran a 13.5 in mine indoors and I DOMINATED :thumbsup:

Only cause you cut half the track against me. :thumbsup: Still may be an idea to tension the rear belt if your using as they may strip.

[DanB4]

I ran my LWB Mid hard in Oz with a 10.5 system and LiPo's (see my avatar ;)) - it survived but now hasa B4 slipper fitted to hopefully prolong the life of the transmission.

[terry.sc]

Only cause you cut half the track against me. :thumbsup: Still may be an idea to tension the rear belt if your using as they may strip.
Just like to point out the Mid doesn't have a rear belt:lol: although the idler gear is a weak point in the drivetrain.

[optiman]

I use to run my Mid Custom with a brushed Trinity 12turns and 8.4volts, quite fast. If I remember well it was faster than a BL 3600Kv maybe more. Everything was new inside and never had any problems in about 6 meetings. Belt drive was 100% sealed so this may have contributed to having 0 issues.
Why did I part of that buggy....? :wub:cry: