the 9920

[neweuser]

Well, i have an HV maxx that runs hot. even with 12/72 gearing. So i'm looking into getting something that can take a good beating yet keep on going. The Hv seems to be temp sensitive. On fresh batts it stutters and spurs too. i have a new reciever coming in that is 75MHz hoping that will help the stuttering, but still want more speed. 9920/9L is what I was thinking, but will upgrade more later. Need to know the diff between 9L vs XL i guess in price and stuff.

[neweuser]

Ok I'm there. What does it mean when it says "basic XL 5000, 2400, etc"?

[coolhandcountry]

The 5000 is the kv of it. The xl 5000 turns 5000 rpm per volt. Same with the 2400 turns 2400 rpm per volt.

[neweuser]

So if i'm going to go with 14 cells and a 9920, with upgrading more cells later, which would be the best? Still the 10XL?

[neweuser]

Also, in the meantime, can you help me with the stuttering on my hv? After it runs a while it's fine, but with fresh batts is real bad...i bought a new radio and reciever on the way for FM 75MHz, will this cure my stuttering problem?
Thanks!

[coolhandcountry]

I had a problem like that on mine. It only did it on 14cells. I couldn't figure out why. It was like the voltage was to hi.

[neweuser]

That' s what I was thinking also. I'm in the process of getting things set up to air cool the motor with a fan, kinda like the set up with the esc. But not quit sure how to power that second fan.

[neweuser]

Let me know how that system runs for you. Lipos? How hard are they to take care of?
If i run the 9920/9L, what gearing should i go for?

[neweuser]

back to this thread. I just purchased 20 loose cells from mike. Is this too much weight on the emaxx? Also, just to confirm, will the controller handle it with the 10xl BK, or am i risking my system? Otherwise i could go 16-18?

[coolhandcountry]

The 9920 on 20 cells with a 10xl should be fine. It is some weight for the emaxx to tote. You have to get it set up for it.

[neweuser]

maybe i should run my 14's for now, resolder them, and get the one speed, and save for the gmaxx chasis carbon...lose 4 shocks(which i'm not sure how to set that up). The only prob is i heard the fast lane stuff does not work well with gmaxx, and i really wanted to use the hybrids.

[coolhandcountry]

The hybirds and gmaxx work well. I have two of them now. It is ue and flm that seem not to work well.

[neweuser]

So if i get he hybrids i should usewhat they call truggy 1/8 gears?

[coolhandcountry]

The truggy gears are really low geared. I use the buggy gears myself. It would depend on the setup you going for.

[neweuser]

Well, i like speed i guess. Maybe go for the ue 8 spyders and use their diff cups and stuff? But i heard they don't fit the fL bulks...is this true?