Yusa buggy? - RC-Monster Forums

stampedeproject · 05.27.2008, 12:23 PM

Quote:

Originally Posted by cmcclive

Novak finally started giving gearing recommendations for their motors. The do not recommend using the 4.5 for anything but a speed run, but they suggest using a 10-11t pinion for the new 5.5 (depending on model). Also, assuming you are still using the 1/8 in shaft, the old 4.5 is equivalent to the new 5.5, so a 10t or 11t should work. If you have a plastic spur, century and thunder tiger make mod1 pinions for their helis (go down to 9t) but they are not hardened. I think Novak has "hardened" pinions now in 11t, maybe even 10t.

Wow an 11T Mod1, now that is a freaking tiny Mod 1 pinion - that might work. Just guessing here but I would say that since I am only seeing 10K RPM, I need to go way down on the gearing and since the motor didn't seem to even break a sweat, I might be able to ditch the heat sink.

05.27.2008, 06:47 PM

Quote:

Originally Posted by stampedeproject

Wow an 11T Mod1, now that is a freaking tiny Mod 1 pinion - that might work.

I have a 9t mod1 pinion. I think it was made by century.

stampedeproject · 05.28.2008, 11:16 AM

Wooo hooo I already have a 12T. I'll give that a try this weekend.

9T, WOW didn't even think a Mod1 could make the radius at 9T - Do you get any weird spur/pinion wear?

bl-is-future · 05.28.2008, 11:30 AM

WOW i am shocked, i see my LHS is mentioned. http://www.larrysperformancercs.com Does anyone else live near this HS?

stampedeproject · 05.28.2008, 01:34 PM

I gave the Yusa a complete tuning overhaul. I took my Losi Race Roller and matched that setup to the Yusa. Holly cow it changed the handling completely.

I will work up and post a setup sheet.

05.28.2008, 03:47 PM

Quote:

Originally Posted by stampedeproject

Wooo hooo I already have a 12T. I'll give that a try this weekend.

9T, WOW didn't even think a Mod1 could make the radius at 9T - Do you get any weird spur/pinion wear?

Here is the image of the thunder tiger pinion, I have only just started using one (I am trying to 10t, and am going to race it this weekend to see how long it will run before thermaling).
http://images.amainhobbies.com/image.../ttrpv0545.jpg

Additionally, in terms of speed, I got my mp777 sp2 runing the hv4.5 and a 10t pinion going 44 miles an hour yesterday (average top speed over 5 runs), so I am guessing that the high gearing and the 3s battery situation are the cause of lack of speed. 11t or 12t should work ok, without to much thermaling (hopefully) so you should be able to get mid 40s to 50s (maybe).