CRT X2 project
 

Gentlemen,

Inspired by droopy & recent success in converting a CR X1 buggy, I've decided to embark on a truggy conversion. Oh also I'm having a lot of fun driving my Thunder Tiget ST-1 pro truggy with a nitro GO 25 Turbo head. Very fast, power & handles better than a buggy over the rough stuff & jumps (i.e. easier & more forgiving - perfect for an "expert" driver like me:party:).

Anyway, I have a kit on the way from my LHS. Should be here next week. I have ordered a blue Neu 1515 2200KV motor. I intend to run 5S using a Mamba Monster.

I have also consulted someone in the know as to whether there is any difference between the center diff mount of th X1 & X2. Apparently, the X2 sports a smaller center diff - 48T ! This is the same as the buggy. So, now I'm thinking how to proceed as I have emailed Monster Mike for a CRT mount. Maybe I should change & order a buggy mount ? Decision decisions...

I will likely use a PQ 5S 6000mah 25C lipo. In addition, I'm also thinking of using mechanical brakes as well. What do u think ?

Gearing will be 13/48. Not sure what is the stock clutch bell size...

Here are some pics I found :

http://i198.photobucket.com/albums/a...ing39/diff.jpg

http://i198.photobucket.com/albums/a.../diffplate.jpg

http://i198.photobucket.com/albums/a...diffholder.jpg

http://i198.photobucket.com/albums/a...ffassembly.jpg

http://i198.photobucket.com/albums/a...39/crkit01.jpg

http://i198.photobucket.com/albums/a...39/crkit02.jpg

http://i198.photobucket.com/albums/a...39/crkit03.jpg

http://i198.photobucket.com/albums/a...39/chassis.jpg

Regards,
Joe Ling

Cool, I saw these were coming out. I am thinking of doing a truggy and I'm laning towards the MBX5T they have for $499, but I wanted to see what the X2 was about as well. Aside from small diff gears, big bores and a longer chassis, I want to know what is changed and what is in common w/ the X1. May be easier to get X2 parts @ the LHS. I'll be waiting to hear how it drives.

G/L

Joe - How much are they over there? They arn't available yet in the usa... Would you ship a couple to the USA?

The 2200 on 5s could be a bit much - Mike runs the 2.5D in his 8T - I have one too for my LSP - Runs great and gears up...


Fin - This is why I'm trying to sell the LSP... :) then I can have:

Brushless Jammin X1CR Pro
Brushless Jammin Crt.5 Pro x2
Brushless Jammin X2CRT

arct1k
can i have link to the neu that mike uses in his 8T will be starting a build soon and want to know.
thanks
Terry

Here you go...
http://www.rc-monster.com/proddetail...5_2.5dF&cat=20

anybody knows if the rcmonster motor mount for the x1crt will work on the new x2crt?

The guess is the buggy mount ATM

Well, some time has gone & I'm still X2 less. The 1 week wait turned out to b a 1 month wait as apparenty i live in the backwaters & the big cities get theirs first. Anyway, my LHS says the kit is on the way with plain packaging. In fact he asked whether I would mind getting a plain box instead of the usual pretty ones as the factory was lagging behind the packaging department. Told him to get it here already, not gonna wait another month for nice packaging.

I'm still waiting for the neu & MMM from Impakt & a MMM & battery tray from Mike. I also feel that perhaps a 2200KV motor on 5S is a little too much & ordered a 2050 Nue 1515 from CC direct just now.

I am on the verge of buying some batteries. I was set on the PQ 5S5000mah 25C lipo. I want to make 30 minutes of runtime in hot & humid conditions. Do u think it will b enough ? Maybe I should get a PQ6S6000mah ? Any advice ?

I am worried as I read here that the CRX1 buggy mount won't fit the X2 without modification. Another obstacle in the way to an electric truggy.

Regards,
Joe Ling

PS : my MMM ver1 died & my buggy is waiting a transplant :=(

i just ran the x1 today i run a 1515 1y on 4s and it runs super cool, i dunno about the motor mount tho, e-mail mike is what i would do

Joe as you know i have converted my X2 using the TeknoRC mount but had to brace the centre diff to the rear chassis brace to stop centre chassis flex , since the mount is seperate from the diff .


I aslo have a CR mount coming from Mike to try out as he seemed to think a couple of guys are already using it in the X2 .
I posted a thread on this but they haven't responded yet so will let you know when i get it :wink:

Hi ffactory666,

Thanks for the info. The Tekno mount looks really interesting.

Regards,
Joe Ling

Whew, after a long wait, something is happening :

http://i198.photobucket.com/albums/a...eling39/x0.jpg
http://i198.photobucket.com/albums/a...ling39/x01.jpg
http://i198.photobucket.com/albums/a...ling39/x02.jpg
http://i198.photobucket.com/albums/a...ling39/x03.jpg
http://i198.photobucket.com/albums/a...ling39/x04.jpg
http://i198.photobucket.com/albums/a...ling39/x05.jpg
http://i198.photobucket.com/albums/a...ling39/x06.jpg
http://i198.photobucket.com/albums/a...ling39/x07.jpg
http://i198.photobucket.com/albums/a...ling39/x08.jpg

There is a small problem to fit the BL motor mount as there is a chassis brace in the way. The way out of this is to cut a notch at the motor mount where there is interference (I think).

Well, I'm under pressure to slap some nitro stuff onto this chassis as it's the first X2 is my part of the country.

Regards,
Joe Ling

PS : sorry about the poor lighting. Took the shots at night under the glare of the incandescent light.

Joe which mount did you go with ?

If you notched the mount will it fit ok with the center brace .

MIke has shipped my CR buggy mount out so should have it by Monday but if you are already trying out the buggy mount and the centre brace is the only porblem to get it to fit that's great news .

I'm hoping so , that way i can remove the Tekno mount in my X2 and get rid of the centre bracing i had to run with that mount.

that thing looks good, not much different than the x1 it seems

Hi ffactory666,

I have Dan's mount with me & one of Mike's on order. On cursory glance, it looks like the brace is the only area of concern. I will know soon.

Regards,
Joe Ling

Good news so far since Dans and Mikes were designed around the same diff mount.

Good news Joe , Mikes mount fits just have to put a notch in it so it clears the centre chasssi brace :wink:

Have a look at my X2 thread for the pics

well, i was on the verge of installing my nitro motor so that i can take her out this coming weekend. With 2 emails last week, my plan is back on track. Finally got off my lazy bottom & put the notch into Dan's mount. So, I managed to mount the center diff with Dan's mount. However, I think I may have hit another problem. I am concerned that that silly brace may interfere with the finned motor like the Neu. I tried a finned feigao & it seemed ok but the fg has a smaller diameter. I will know once the Neu turns up together with MMM.

Regards,
Joe Ling

http://i198.photobucket.com/albums/a...ling39/m07.jpg

http://i198.photobucket.com/albums/a...ng39/m03-1.jpg

http://i198.photobucket.com/albums/a...ng39/m02-1.jpg

sorry for the poor white balance :oops:

Regards,
Joe Ling

About time you joined the club ,very nice , i like Dans top mount .

My Medusa 1600kv is 36mm and just clears the brace with 14t-15t pinion . Not sure on the Neu finned size and will depend on the pinion as well .
What size pinion are you going with ? The larger the further away from the brace the motor will be but then you will have to be running a low kv motor .

sigh...confirmed that the finned Neu will not fit. Had to relocate the brace to the other side.

http://i198.photobucket.com/albums/a...ng39/x01-1.jpg

Also decided to use a spare CR steering servo plate.

Regards,
Joe Ling

You can still bring the brace in closer to the spur , that way you can get the battery tray as close as possible as well .

http://i198.photobucket.com/albums/a...ng39/a01-4.jpg

http://i198.photobucket.com/albums/a...ng39/a02-4.jpg

http://i198.photobucket.com/albums/a...ng39/a03-4.jpg

http://i198.photobucket.com/albums/a...ng39/a04-3.jpg

http://i198.photobucket.com/albums/a...ng39/a05-4.jpg

http://i198.photobucket.com/albums/a...ng39/a06-4.jpg

not to long now...

These pics are already shown in another thread under Castle Creation sub forum but I thought I'll include them here for completeness :

http://i198.photobucket.com/albums/a...ing39/X201.jpg

http://i198.photobucket.com/albums/a...ing39/X202.jpg

http://i198.photobucket.com/albums/a...ing39/X203.jpg

http://i198.photobucket.com/albums/a...ing39/X204.jpg

http://i198.photobucket.com/albums/a...ing39/X205.jpg

Regards,
Joe Ling

WOW ....very sweet build ...i'm working on a crt-x1, i hope it comes out half as nice as yours did ....keep us updated on the MMM,i'm really worried about using mine after all ive been reading

It's a shame we are worried about using our v2 MMM .

When i receive mine i think i will be selling it and look for another option for the X2 , maybe another R1 Pro .

Sorry Joe forgot to mention the truggy is looking very nice :yes:
What gearing have you gone with ?

I have ordered an Upgrade Rc custom skin kit for the X2 which i pick up from the post office tomorrow. When i have the body done i'll post picks in my thread .

Thanks guys. Brought her out for a brief run yesterday. Too powerful but the run ended prematurely due to motor failure. Thought the esc was stuffed but I think the motor magnet has problems. Already emailed Impakt rc but no response yet. No matter, I got another genuine OEM Neu 1515 2000KV waiting in the wings - looking forward to get my plastic cover from monster mike before I install this motor.

Pity about the esc. The BEC section is putting it down big time. Otherwise, I think the power section is holding up nicely. Had 2 sessions with my revived V1 in the CR buggy & I thrashed it around jumping all the doubles with short run-ups & triples with a blip of the throttle - impossible to do with a nitro engine & so far no problem. Only problem is that it's afraid of water but that's another story...

CRTIM, u are too modest. Do show us your build.

ffactory666, looking forward to the pics !

Regards,
Joe Ling