Got my GST 7.7..
 

Wow, I gotta say... the GST 7.7 was a lot more than I expected.... it's really heavy, but it looks like it's well made also... Well, I have all of the nitro stuff out and sellin' on ebay. So she's ready for a brushless conversion.... for my power plant... I will be running 8S 20C hyperion 3700mah lipos.... mgm 24.160.... but motor... still undecided, because the stock motor for the GST runs @ 25000rpm?.. (i'm not sure whether I should run higher rpms).. I'm gonna use the same clutchbell for it. I'll find some prop adapter I could use or something....

any clues guys?.... should I stay around the 25000 rpm like the nitro motor?.....
Any suggestion for motor would be cool.... I wonder if Feigao 20XL will have enough juice to run this 17Lb beast...

http://www.geocities.com/aqwut/gst.html

For a vehicle that heavy, maybe 25,000~30,000 rpm would be best? I think the 20XL would be too slow. The 14XL, 15XL, or 16XL would be better, imo. If you can afford it, you should get a Neu 1515/2Y, or better yet a 1521/1.5Y. That would be badass.

a 12 XL fegaio is 1390kv and with 5s lipo's it will be about 25733rpms no load if that helps

maybe a feigao 16XL.... hopefully it will have enough juice to move... and if it proves well... I might try to neu motors.....

You could always run the motor at ~35k rpm and gear down so the final speed is comparable to the Nitro. Would be less stress on the motor too...

I was thinkin' of that brian, but it's got 2 spur gears... and I'd have to specially make or find a clutchbell for it....

Well, it may be possible for Mike to bond two pinions together to get the ratio you want. Just an idea.

BTW: That's a pretty truck! :004:

yeah.. maybe Mike can do that..... It's a nice truck... but the only downfall are the cheap shocks.... I'm actually buying another GST 7.7 Roller.... I just think it's a very tough truck ... has anyone ever tried a feigao on a heavy truck?...

Almost done with the brushless conversion....... all I need to do is, make a battery tray/holder and she's all done... she's heavy though.. about 1.5Lbs heavier than stock... I think it should hold up pretty good... I might need to get the aluminum diff housing for it...

http://www.geocities.com/aqwut/gst.html

is that your 2280 i see? very cool project...............

yeah... 2280 suits better in this vehicle than an e-maxx... it will be cheaper in the long run.... The LST Driveshafts won't handle it.... I have yet the test run to do...

I agree on the 22 series being better suited. Nice so far man.

I like! Looks a lot like a savage! How heavy is that?

Thanks.... I took serums advice.. patience... patience and patience.. I had to file the H*ll out of it, just to make it look decent.... it's a whopping 18.58Lbs with batteries and everything.... that's about 1.5Lb heavier than stock... but really guys.. the picture doesn't do it's justice... the parts looks like to be really well built... that's why I bought a second one...

I also have to make a rear support, just incase of crashes and etc....

come to think of it... DO NOT USE the MGM 24.160 with the throttle/brake servo.... I almost lost my nose... for some reason they have very very bad (instant) interference.... so I stuck, A Z270 servo on it and it was fine... but it's not powerful enough to stop the beast.. I will put a z590 servo on it...

Hopefully I can get a video in a few days.... I have to resolder new ends for the Lipo batteries that I bought from NL12... just incase, better safe than sorry...

I have the battery holders done, it took a long time.. but it's finally done....

here's the link if anyones interested.

. http://www.geocities.com/aqwut/gst2.html

I'm gonna try running 8S 8800 20C Lipo Packs... or maybe the max amp packs?...

Max amps! Nice holders, looks like they are going to work well for you! Good job!

Well, no one tried these motors, yet, but probably you may want to give it a try, Aqwut:
Kontronik Tango:
http://www.kontronik.com/index2e.htm

Capt:
I've used the twist before.... but I don't think the other motors will be powerful enough to move this beast.... the Tango's not that big of a motor... ;)

New:
Thanks... I hope they hold up...there's not as much room for the batteries as I though there would be... I forgot that the machine screw head sticks out about 3-4mm... so it just fits in good....I just don't like the thought of it rubbing on my lipos... I will have to put the batteries a little bit on a slant... only if I'm running 8S 7400 20C packs...

The only other thing I'm waitin' for is the pinion.... I tried runing it with my 11.1V 4400 15C Lipos... I held the back of the truck and let it run from 1/4 to full throttle, it only drew 55 Amps Max... but she really pulled man..

When we get The video you promised :P ? Cant wait any longer :D

yummy looking dog! How much you want per pound? Nice truck! Get a bashing vid when done

It's been raining every single day..... ;( I have her all ready to test.... I'll probably kill the cheap acetyl pinion but oh well.... stoopid weather won't clear up.... I'm excited to test it as well....

I have some new updated pictures of the GST... I will put fans on the battery trays... after that... I hope I can make it all/most aluminum... Here are the pictures...

made the battery tray/holder look more pretty and modded for dual steering servos...

http://www.geocities.com/aqwut/gst3.html

http://www.geocities.com/aqwut/2006N..._05_resize.JPG

:004: :043: :004: darn these truck are nuts!
nice job on the conversion!

OMG! Nice battery holders, wish I could do the same for my brushless Gen :D

I wasn't too hard to do... just took a lot of time with only a jigsaw, drill and a file.... But thanks for the compliment... even the dual steering was easy to do.... to make the tray, just get some cheap angled aluminum and trace out the side chassis... hold it with a vice grip and drill out the holes...

OK, Have to try that aluminum thing if my acryl plate wont work..
My lipos comes inside the car now, top of the servos and receiver. Dunno how much it cause unstablenes for my Gen :032: ...

any updates on this:032:

Sorry for letting this topic pass by.. Somehow i didn't see it.

Nice project Aqwut! i was thinking about doing a Genesis too, this is the one with the centerdiff, right?

nice man.. One beefy truck... I am hearing mixed stories about the drivetrain.

The diffs; are they standard 1/8th size? are the driveshaft tough? i know they are thick, but are they tough?

Good work Aqwut.. Patience pays, you know..

Not sure how you missed it rene. But it is nice.
I haven't seen aqwut around lately.
Maybe busy again with work.

You guessed it right CHC..... Work always gets really busy a month before the new years... working very long hours at the mushroom farm.... I shall be more active after the new years...... but the drive train is tough.... I've had no problems with it at all... I customized it to use plastic spurs also.... the metal spurs just eats the pinions.... with 8S 4400 20C, it weights only a little bit more than stock... ever since I finish, I haven't had time to make a video yet.... I still have that to do... looks like no snow this Christmass...... MERRY CHRISTMAS TO ALL OF YOU RC FREAKS.... We'll chit chat next year... :)

Wait a minute, you live in Canada and getting no snow. Thought that was only supposed to happen in the southern states

how does it go with the 2280 in there?
isnt it to much motor?