A bit of info please (savage conversion) - Page 2 - RC-Monster Forums

Nixpus · 05.27.2009, 02:17 PM

Arg :)

And the fat ones? KB45 08XL should have a nice RPM @ 22,2volt ~ 35-36.000ish... but then Im back at the low CoG issue as it wont fit in between! Merde ;)

nitrostarter · 05.27.2009, 02:43 PM

The KB45 motors aren't bad for the price, and they are little powerhouses. But the KD36 motors are garbage.

Nixpus · 05.27.2009, 03:17 PM

Cheers!

KB it is then! Any opinion on the motor choice? Im thinking the 12L 1400KV will be more than enough... but the 08XL 1600KV is teasing my inner power junkie.

lincpimp · 05.27.2009, 03:19 PM

Go with the 8xl, it will stay cooler due to the longer can and more torque. Either will require good lipos, 25-30c min with 5000mah min. Something like the flightmax zippies would be a good inexpensive option. I ran the L can KB motors in my gtp conversion and they did fine, but I am sure your savage will be heavier and have more wheel/tire weight.

Nixpus · 03:47 PM

Thanks again-again guys :)

Any idea what these alu bulk heads are? And did I read something about shimming somewhere?

EDIT: If I hold the diff by the shafts there are some play when I pull them apart push them in. Is that what I should get rid of?

onetoo3 · 05.28.2009, 06:45 PM

hi just some questions for you
i have the savage21 i want to convert to flm
i got the flux tranny and 52t spur form my 21
going to use mmm 2200kv combo just need help with spur & pinion
thanks
and i must say that my 21 was just in storage. than i found rc-monster.
next i am getting flm parts in the mail........i think we know the rest....
thanks guys

Nixpus · 05.29.2009, 06:57 AM

Just got word that the 4465 will arrive in a new and improved version next monday... Now I have 2 motors en route.

Regarding gearing of a Flux tranny with the mmm 2200 KV combo... look at the flux and get the same gear ratio.

Regarding gearing of the 4465 and KB45-08XL... I take it I cant go totally wrong if I aim at around 45 mph and take it from there.

nitrostarter · 05.29.2009, 10:42 AM

45mph should be fine on those motors. No problems, just watch your temps if you want to gear for more.

Nixpus · **Worn bits :) -** 06.30.2009, 04:49 AM

Mkay... got the 4465 motor and 150a ESC installed. Pictures later when my colleagues have left the lab

For now I only have pictures of the worn parts.

The spur gear wasnt uber tight when I made the 1st test run. 44.000rpm will do that to a spur gear in 1½ minute!

After swapping the gear and tightening the slipper fully... the hex shape of the wheel stopped being hex shaped... its round now... time to play with epoxy!!

Nixpus · **E-Sav v1 -** 07.03.2009, 11:34 AM

Ok... hex hubs epoxyed into the rim.

This guy does standing back flips and wheelies at crazy speeds... Guess HW was right when they claimed the C4 combo to be crazy powerfull

It is currently in a version 1 state... it can drive but the motor mount + bat trays are plastic.

Hope this works.

Nixpus E-Savage v1:

Mortor mount v1:

ESC + motor mount:

Question time...

What is the strongest diff I can put into this guy? The one thats in there is quite tight and favours one of the wheels over the other.

Whats the best wheelie bar out there?

What type of slipper should I put into this guy? The standard either slips all the time (and then the plastic spur gear melts) or I tighten it all the way and it doesnt slip at all (at least I cant tell that it does)

What kind of wheels baloon less? The standard tyres I have atm is double size at top speed. And one of them is about to leave the rim. So even tho Ive used the calculator to gear for 45MPH... its much faster due to balooooooning.

I'll do a serious attempt at mounting the motor below the spur... its gotta be possible!! Will have to remove the motor mount of course. But I can make some other construction to stiffen the TVPs.

Nixpus · 07.05.2009, 03:47 PM

Found a set of XL wheels with 17mm hex and all for 70$ delivered to my doorstep. Hope those guys will be a tad more durable than the old ones.

Nixpus · 07.09.2009, 03:42 AM

Battery trays made out of a stiff plastic box wasn't that sexy... but they got it up and running.

Time for battery tray v2. Found a stick of U shaped aluminium. Made a cut out in each end and bend them. tadaa... battery tray!

Added a strip of velcro to the bottom of the tray and the bat. will have 2 velcro straps around each tray. The straps are from lab top PSU's... they are used in order to manage the cable length.

Made a plastic insert in each tray. This way I can use standard hex screws. The "head" of the screws is sitting slightly lower than the edge of the plastic insert. Battery safe from harm... at least they wont get damaged by the screws ;)

Placed them at the front of the sav... should be ok balanced once motor + ESC is installed in the back.

lincpimp · 07.16.2009, 03:02 PM

The 5645 will not be much of an upgrade over the 645. If you want to have very strong steering, a good hi torque digital is a must. I like the jr 9100t, solid, powerful and quiet...

BL_RV0 · 07.16.2009, 03:45 PM

The 5645 is fine in my 12lb truggy...

Nixpus · 07.17.2009, 06:32 AM

Remind me... whats lb? 12lb doesnt make sense to me... Im a metric kinda guy.

Had a minor problem with one of the Turnigy batteries. On of the tracks on the PCB where all the wires are soldered simply burned over:

Fixed it with some fat wire and solder... but slightly annoyed. I want to buy great quality at low cost damn it!!!

I covered the solder pads which I didn't need to work on with insulation tape. Shorts in a LiPo is bad I hear! Just a little security tip if anyone reads this and has to do similar repair work.