i need a new project

[t-maxxracer32]

well im not really sure how races work... but if im not racing i will be jsut driving around the track trying to get a feel for it and all that...
would you think that the components will ever get too hott to run?

like after a full 30 min runtime or anything?

[Patrick]

46/13 should give you pretty decent track speed, unless it's a really big open style track. I don't think you'd want it much faster while your just getting used to racing.
46/14 should be as fast as you need it to go on the track, even once you get used to it, but if you do need to show off at racing, a 15t pinion would do that.
Geared 46/13 I don't think you should have any problems with temps, unless it's really hot weather or you drive really hard.
30 minutes racing will be close to the batteries runtime I think. You might get a few mins more or maybe few mins less, just depends on all the normal amp draw stuff. Plus if you spend a lot of time on your lid, that's time that your not drawing much power

[t-maxxracer32]

well the track is only open at night so temps arent a big deal...
and at first i will definetly not drive it hard lol... i wont be able to.

its amazing at what 1-2 teeth on a pinion can do for you...

on brians calc can you check speeds?

and im guessing 46 is the stock spur?

[t-maxxracer32]

what is the diff ratio? 4.3?

i put 4.3 and got a speed of 36 with 46/13 gearing and 5s.

[Patrick]

Yeah, the diff ratio in truggy's is usually 4.3:1.
I couldn't say for sure what the stock XT8 spur is. I think tallyram had a steel 48t spur on his, so maybe 48t is stock? I guess you'll find out once you get it, but 2t on the spur gear won't make that much difference, maybe 1.5mph.

I think that gearing is a good place to start.

[t-maxxracer32]

got it in today!!! YESSSS!!!!! stupd mailman came at 9 in the morning instead of the regular time so i didnt even know the package came till my mom checked the mail at 430....
turns on i needed to sign for it so they left me that horrid note saying that they will deliver it tomorow... o but hey... tomorow is thanks giving! so they werent going to deliver it till friday! i didnt feel like waiting so i jumped into my truck and got to the post office a couple minutes before it closed (5PM)

anyways!!! truck is here!!!YESSSSSS!!!!! its not like i can do anything with it lol... but still!! ITS HERE!!!!

good news is that i have more money than i thought. so the project will be completed by january.

here are some pics!

awsome packaging.



before

after

ill definetly be getting another body but for now this is all i have!

[t-maxxracer32]

as you can see i still have the other half of the motor mount connected... the screw is stripped... its a hex head so what do i do? drill it out?

and theres the 16018!

[t-maxxracer32]

was looking at this battery tray maybe to buy for it...
http://www.rc-monster.com/proddetail...MFPbatterytray

how would i mount it on there? or keep it from coming out?

do i just drill it onto the chassis or what?

also do you think it would fit the true-rc 8ahs?

[squeeforever]

I don't think it would fit the TrueRC packs. That Xray looks NICE!.

[Patrick]

You could count the number of teeth on the spur while you don't have much to do on it You might be able to find out more about all the tuning adjustments at somewhere like http://www.truggyracers.com/
Sometimes you can get screws out by using a cutting wheel on a dremel and putting a slot for a blade screw driver in the head of the screw. Could be hard if it's a counter sunk screw and you don't want slices in the bottom of your chassis. If not you may need to drill. Do you care if the motor mount get damaged? If you don't drill perfectly straight it will be easy to damage the internal threads in the mount.

[Patrick]

Originally Posted by t-maxxracer32

was looking at this battery tray maybe to buy for it...
http://www.rc-monster.com/proddetail...MFPbatterytray

also do you think it would fit the true-rc 8ahs?

It says it fits the flightpower 5000's, which are 166mm x 44 or 45mm.
The older 10C true rc packs will fit length ways, but they're 50mm wide, so they probably won't fit.
The new 15C versions will fit length ways and they're only 45mm wide, so they should fit in the tray. The new 15C packs are a bit taller and heavier than the 10C ones, so keep in mind that it's going to be a big chunk of battery to have on one side of the car. Their also more expensive than the 10C ones, and won't be that much cheaper than the Flightpower 5s 25C 5000mah packs.
Are you buying new batteries or do you still have some from before?

[t-maxxracer32]

i have a true rc 2s pack. so all i would need is a 3s pack and i got my batteries.

so it will be 150 for the batteries and im done. instead of 300... but im not sure what im going to do yet.

also i dont care about the mount at all so i will just drill right through it tomorow.

im going to end up buying the evo 30s so i wil prolly just buy the tray and if it fits the truerc packs then awsome! but if not then ill find another way to mount them.

idk. i will see what ima do later in the build when i have the moneys.

ill go to truggyracers tomorow and see what i can learn!

thanks!

[t-maxxracer32]

so im probably going to end up with the 1515 1.5d i think it will save me a TON of money in batteries and save me weight.

if i gear it at 46/15 with only 3s a123 it will hit around 34 mph!! or 4s lipo with 46/13 it will hit around 45.

only thing about that motor is im worried about it overheating. since its a high kv motor i feel like it cant take a beating. idk why but i am going to keep the truggy as light as possible to help it out.

[squeeforever]

3S A123 is nowhere near enough juice...4S minimum.

[ClodMaxx]

dude, that thing is SWEEEET! i'm excited for ya, ryan. heck, i'm excited for me too - although i'm going to have to put mine together after it comes in next week... which is fun too i guess.

edit: i agree with squee - i'm planning to run 5s a123's in mine.