X1 CRT pinion size

[sweetride4me]

I am about to place my order with the site and wanted suggestions on pinion sizes to run.... I have a X1 CRT pro that I am converting and it has the stock metal spur on it right now....

Thanks for the help... being new to brushless and to center diffs I am all messed up her...

[Arct1k]

Depends on spur, tires, motor and voltage...

http://scriptasylum.com/rc_speed/

Use this can gear for 38-40mph

[Rnemhrd]

What motor, batteries, and how fast do you need to go?

I have the same truck look at this tread http://http://www.rc-monster.com/for...ad.php?t=17637may be helpful I'm running a 13t pinion have an 18t that came with the Monster combo and will be buying a 15t, if running 5s though
13t is enough for most tracks.

[sweetride4me]

Originally Posted by fsracer

I have the same truck look at this tread http://http://www.rc-monster.com/for...ad.php?t=17637may be helpful I'm running a 13t pinion have an 18t that came with the Monster combo and will be buying a 15t, if running 5s though
13t is enough for most tracks.

Thanks for that info I'll take a look...

[sweetride4me]

I will be running 4S 2200v mamba monster combo, just going to be mainly bashing around with my buddies brushless revo and my other buddies 5b ss...

[skellyo]

14:62 is a good place to start with a 2200kv on 4S

[sweetride4me]

Ok so my question is ... if I change out my front and rear diff pinions to 10t instead of the 13t can I then drop my spur to 44t???? or am I under thinking this???

Thanks in advance

[skellyo]

Depending on what kind of speed you want, you could actually get away with going to the Kyosho 46T spur and not changing your diff pinions. A 10:46 with 13:43 diffs is almost identical to a 13:46 with 10:43 diffs. However, changing to 10:43 diffs will allow for more gearing options. Personally, I run the stock 13:43 diffs and the stock 62T spur. There really isn't a real good reason to change it from the 62T IMO.

[sweetride4me]

Would I notice any gain in room for my v3 battery tray??? I measured and I might have just enough now to mount it the way I want, but have to ask anyway...

[George16]

Where did you buy the battery from? Is it tekno's or RCM? ANyway, you should have enough room to mount it on the left side.

[sweetride4me]

tekno tray, zippy H 4s 5000mah lipo .... if that helps Lito... looks like I need about 2" clearence and I have just that.... so we will see this weekend when I try to mount it

[George16]

That should fit without any problems. Don't forget to post some pics of your conversion.

[dirt101]

heck I have a 6s 5000mah with the stock 62t spur. haha, its VERY tight but it works. I would start with a 14t or maybe a 13t if you would like to keep temps down but really it shouldnt be a problem with a 14t.

4s with the 2200k/v is about the same as 5s on my 1700k/v and I ran 13t on 5s for a long time and was happy with it.

yea i didnt like the 62t spur myself, it was ungodly loud, not to mention it was only a couple mm's from the wires, i put a 48t losi spur on there with a 10t pinion, for the 1y and the 62t use a 13t pinion