FLM Forward Conversion Build

[joeling]

Hi jhautz,

Thanks for the quick response.

I just saw in another thread started by knotted that HPI will have big bore shocks for the savage. 2008 is going to be good year for my savages. Bought 2 of these in 2006 & have not played with them much at all in 2007.

Regards,
Joe Ling

[jhautz]

BTW are these the Zippy lipos? I recently bought 3 of the 4s 5000mah packs I use in one of my buggies and they are pretty nice for the $$. Only a couple cycles on them so far they seem to be not bad for the cash.

Just thought I'd post an update. I installed the electronics last night and programmed the MGM using the USB link, which is a very cool feature I think. I reversed the motor wires because the motor was spinning the wrong way and got everything ready for an indoor test, just to see if everything was working. Well I managed to screw something up with the motor direction because it was still wrong and this time the motor drove the spur in the reverse direction and stripped to teeth off the 1st gear (the only plastic one in the three speed). Not only that but it broke the one way bearing which now is a two way........

Lesson - When you are dead tired don't work on your expensive RC stuff.

So tomorrow I will have another 1st gear and should be good to go. I still haven't built a barrier to stop the battery from crashing against the spur in the event of a major nose dive... Probably work on that tonight.

I also ordered the 52T hardened steel spur from Golden Horizons. As jhautz talked about it will add some needed space between the battery and the motor. I must say the metal on metal pinion/spur setup is really noisy and vibrates everything. The sound is pretty harsh. Kershaw sells some 5mm mod 1 delrin pinions with brass centers that might be worth trying. I just don't know how they would hold up though, probably not last long.

[jhautz]

Sweet! Do you have any updated pics?

I did a little test run around the living room last night at midnight. Its pretty much done with the exception of some tuning and whatnot that still needs to happen. But... the snow is flyin here now so I will ave plenty of time to get to htat before it gets a propertest run.

I actually went for the plastic spurs again. I got the 52T stock and a 51T delrin one on the way. I'm thinking the delrin one will be good for durability without some of the metal spur drawbacks. But in reality i dont think think a metal spur will be a problem, I run them in my buggies and they dont seem any louder than the plastic that I can tell.

(Truthfully I was to cheep to spend $25 on a metal spur so I went for the $10 delrin one instead )

[MetalMan]

Originally Posted by BashOn

Just thought I'd post an update. I installed the electronics last night and programmed the MGM using the USB link, which is a very cool feature I think. I reversed the motor wires because the motor was spinning the wrong way and got everything ready for an indoor test, just to see if everything was working. Well I managed to screw something up with the motor direction because it was still wrong and this time the motor drove the spur in the reverse direction and stripped to teeth off the 1st gear (the only plastic one in the three speed). Not only that but it broke the one way bearing which now is a two way........

Lesson - When you are dead tired don't work on your expensive RC stuff.

So tomorrow I will have another 1st gear and should be good to go. I still haven't built a barrier to stop the battery from crashing against the spur in the event of a major nose dive... Probably work on that tonight.

The transmission can only accept one direction of rotation unless you lock it, right? If it's spinning the wrong way, sounds to me like the diffs need to be flipped.

[MTBikerTim]

It you put the diffs in the savage around the wrong way it won't be able to roll freely. Sounds like he did something I have done a few times. Unplug the wires to swap them around but plug them back in exactly the same way again.

Correct MTBikerTim. The diffs are in the correct direction. The motor had so much torque it broke the one way bearing and now it is a two way bearing.

I took the truck out for a quick spin tonight right here by my condo. Not exactly the best spot to run a truck but I wanted to just see if everything was working. The truck ran great. The power was awesome..... The area I was testing in was way to small to really get a feel for what she is capable of. It was a little wet as well so was trying to avoid puddles.

This weekend I will get some time in at the local park and get a friend to shoot some video. It is early yet, but I think this thing is going to be awesome!

[MTBikerTim]

Originally Posted by BashOn

Correct MTBikerTim. The diffs are in the correct direction. The motor had so much torque it broke the one way bearing and now it is a two way bearing.

I took the truck out for a quick spin tonight right here by my condo. Not exactly the best spot to run a truck but I wanted to just see if everything was working. The truck ran great. The power was awesome..... The are a I was testing in was way to small to really get a feel for what she is capable of. It was a little wet as well so was trying to avoid puddles.

This weekend I will get some time in at the local park and get a friend to shoot some video. It is early yet, but I think this thing is going to be awesome!

Awesome it will be great to see some video. Try and hit some jumps for us.

I made a barrier as discussed to stop the battery from hitting the spur during bashing. I used a dremel and cut it out of a piece of carbon board. I attached it to one of the posts supplied with the kit using zip ties and CA.

It is pretty sturdy and I feel confident it will hold well. The lipo is nice and snug in there now.

A few more

Now that I know how to reduce the size of my pics here are the ones I linked to earlier.

more....

and more.....

[jhautz]

Serious beast there. It really looks bad a$$ with all that FLM stuff.

Do you have a scale to throw it on? I'm curouis what the weight difference is between that and mine with the plastic arms and bulks.

EDIT: Man that gonna be some serious power thith the 1521 and 6s.