joeymdz

iTrader: (13)

Only issue I have ever came across was the grub screw for the rear hub pins being too tight and that will bind up the axle.

Sounds like you all ready found your issue. Either get rid of the flawed narrow hexes or run the stock ones.

Corde89

Good afternoon everyone, my name is Andrea and I come from Italy.
I wanted to kindly ask if and what kind of heatsink / fan I could mount on my xB4
Thank you all (sorry for my english)

Andrea

suzukipro

iTrader: (33)

I guess it is possible something is flawed with my set, but would be surprised they would be offered by XRAY as an option part if the fit and finish wasn't up to spec...

joeymdz

iTrader: (13)

I have a set of the .75's and zero issues with mine. Slovakians can make mistakes

fullout

I would recommend glueing a small fan just in front of the motor. The heatsink/fans usually just clip over the motor, and 4wd racing can get rough, lol. Most likely that heatsink will fall off the motor, this is what i have found in my experiences. Always had better luck with a glued fan. Shoe goo works great and can be removed easily.

Mullet1

iTrader: (16)

who makes a stiffer/better front upper deck?

symmetricon

iTrader: (27)

Xray broke in Vegas?

Mullet1

iTrader: (16)

lol

the incubus

iTrader: (17)

Better than that is a Spec-R fan mount. You just have to figure out what screw to use on the chassis for optimal positioning, or, you can dill a hole yourself if there is none where you wish to place the fan. A Countersunk bit will leave it looking as if it came that way from the factory.

Here it is on a 410, which is a super tight chassis to fit things into:

http://www.rctech.net/forum/12479563-post13269.html

EricW

iTrader: (1)

This is what I would recommend, I haven't done it yet but I was looking at where to glue a fan the other night. If this is what others are doing I'm a little more confident that this is a viable solution.

Corde89

Perfect, but what glue can i use?
thank you

EricW

iTrader: (1)

ShoeGoo

http://www.eclecticproducts.com/shoegoo.htm

elex300

iTrader: (110)

Shoo goo works great.

the incubus

iTrader: (17)

That's not the ideal placement for a fan. The body is so close there that it doesn't pull all the fresh air it could if it had more open area behind it. I had it just like that on my 410 and it helped but someone told me I should move it away from the body for more efficient cooling and then I noticed a bigger difference. You might want to move your transponder up a bit and place the fan blowing onto the motor's end bell at an angle and the air will sweep towards the back of the body to cool more efficiently. Additionally you might want to go with a 30mm fan. That looks like a 25mm.

Shoe goo is good but you can also use the clear double sided servo tape and heat it up a bit to activate super sticky mode and it will hold the fan perfectly. Any high quality servo tape will hold it really because the fans weigh next to nothing.

Lovin' the all orange wiring.

elex300

iTrader: (110)

It dropped my motor temps 20 degrees and thats all I needed. I think having it blow directly in to the opening on the can is better imo.