Need some help on a crt .5 conversion - RC-Monster Forums

**Need some help on a crt .5 conversion -** 03.27.2009, 10:34 PM

Hey guys!
New to the forum and have a few questions
Ok to start with I got a brand new crt .5, a brand new VXL brushless system, and a brand new spectrum MG servo for steering. The truck also came with the rc-monster motor mount. Everything is still NIB ...I don't think I did too bad considering everything is brand new and I paid 300 for it all

ok now while I am not new to brushless I figure I would save myself some headache and ask the people who know and have done it.
To complete this truck I need the adapter to convert a 5 mm bore pinion to 1/8 inch shaft (vxl) correct? I know I saw it on here somewhere....
Also I need a someone to recomend a pinion for this thing......should I start with what is stock for the nitro motor? 13 tooth I believe? Do I use the mod1 pinions? The pitch is kinda throwing me for a loop and I am not sure what to get. I planned on getting a variety of pinions but I need somewhere to start first.
I have 3300 Mah 2 cells and 3300 Mah 3 cells
I also have many 2200 Mah 3 cells

I know the VXL is not the first and best choice but it's what I got so I would really like to use it

(I tried using the search function but couldn't get desired results)

If anyone is able to help I would much appreciate it!
Thanks!

Snipin_Willy · 03.27.2009, 10:49 PM

Depending on the motor KV rating, I would stick with the small buggy wheel. Dunno about gearing. I don't think you are gonna wanna push those Lipos too hard. What are they rated for?
Yes mod 1 pinions.

jnev · 03.27.2009, 10:54 PM

Here is the bore reducer you will need:
http://www.rc-monster.com/proddetail...rod=RCMreducer

The CRT.5 does use mod1 gears. Using this calculator (made by BrianG):
http://www.scriptasylum.com/rc_speed/_top_speed.html On a 14 tooth pinion on 3s lipo, you will be right under 40mph. You can play with the values though to see what set up/speed you like.

03.27.2009, 11:21 PM

Snipin_willy
I was not planning on changing the tires or wheels
No worries about my lipos...

Jnev
yes that was the bore reducer I was talking about. I will order some of those and some Mod1 gears
14 tooth pinion was right about at what I was thinking so I will order 12 thru 16 so I have plenty available for tuning
Most of my cars lead a pretty easy life being run only once or twice a week on the track so this one will probably be the same way
I can't wait to get this one done and see how she performs

Thanks for the quick response!
told me exactly what I needed to know

04.02.2009, 09:17 PM

Snipin-willy, jnev
Thanks for the help
I got my jammin running and it runs great!
I ran it on 3 cell lipo and the temps were very manageable
motor around 105 and esc slightly warmer at 120
I am using a 13 tooth pinion
I am very happy with the performance and now it just needs to be tweaked to be running perfect
Thanks again for the help!

Snipin_Willy · 04.02.2009, 09:40 PM

Sounds like you have a balanced setup, have fun with it!