My T-Maxx FLM Build!

[chickenman242]

I wasn't saying that a servo change will stop rollovers what I was tryin to get across is that with bigger tires a better servo was needed and made a big difference in handling and steering control

And I'm sure he was saying that he wanted to change the picco for an os so thats why I made the suggestion bout the rb

 

[Kyleb]

Great build!

 

[override]

Well guys I finally got a good session in today! Guess why? Cause I put an OS motor in the T-maxx. Screw that Picco .26, has to be the most finicky engine I have ever ran. Have not run the OS in over 8 months and she fired up within 15 minutes. Caught a tune within 5 minutes and had to adjust for temp change (getting colder) twice. I've decided that the OS is staying in, it may not have the balls that the Picco does but really I think I like it better. The truck is way easier to handle and still has great response!

Here are two videos, first one is shortly after I got it tuned one of the guys there shredded the spur on his sons Savage and didn't have any spares. So I was letting the kiddo drive it around for a while. Second one is me driving and consistently missing the ramps. roflmao

[ame="http://www.youtube.com/watch?v=vjod7qRaIUo&feature=plcp"]FLM T-Maxx - YouTube[/ame]

[ame="www.youtube.com/watch?v=XtgvmJqkvJ0&list=HL1352085820&feature=mh_lolz"]Fastlane Machine T-Maxx! - YouTube[/ame]

 

[chickenman242]

I'm leaning towards the os over the picco after hearing the probs proposal are having and plus I like to be able to control the truck not just do speed runs
Glad you got it running and are happy with it

---------- Post added at 12:50 PM ---------- Previous post was at 12:49 PM ----------

Damn auto correct proposal -people

 

[override]

Gonna give brushless a try

I have been slowly buying parts to change the T-Maxx over to brushless :

I had a free day today so I cleaned up the T-Maxx and started disassembling it, got everything set aside to box up and stick on the shelf.

I got the receiver box and chassis kit new on ebay, picked up the transmission on ebay aswell. Single speed conversion with steel idler, drive gears and FLM motor mount. Snagged the Castle combo and BEC used for $165 shipped off rctech.

Pulled the transmission apart to confirm the steel gears and see what kind of condition they were in. Looked really good, not much grease though. Drilled out the tranny case holes and pushed some 3mm threaded inserts in them. Greased the gears up and she's ready to go!

The motor and esc wasn't in the best shape but a little TLC and they will be good as new! The deans plug was soldered terribly, switch wires were cut and left twisted together outside of case with no heat shrink over them and the motor wires had a spot rubbed through on each wire. Also the receiver wire on the esc was pinched and the wires were in pretty bad shape.

New receiver wire and soldered the switch wires...All fixed up

Plug wires tinned and ready for a new plug

The shafts that come with the FLM chassis kit are beefy! Really nice and are actually a matching set.

Started assembling the chassis today, just about all I can get done until I get the rest of the parts I need.

 

[MudSlinger33]

Looks nice! Welcome to the dark side!

 

[override]

Thank you I am excited! Never thought I would go brushless but ya know times are changing and all my friends are brushless now. I figured I can keep the nitro parts and if brushless just isn't my thing then I can always switch back over to nitro.

 

[chickenman242]

Is that a new chassis and emaxx tranny
I've seen quite a few people going the brushless route lately, seems a better idea to use an emaxx trans instead of using a tmaxx trans and modifying It
Can't wait to see the new build finish

 

[override]

Is that a new chassis and emaxx tranny
I've seen quite a few people going the brushless route lately, seems a better idea to use an emaxx trans instead of using a tmaxx trans and modifying It
Can't wait to see the new build finish

Yes Sir, as stated a few posts above. I got the FLM emaxx chassis and 3908 tranny off ebay. The build should be done and ready for testing in roughly 3 weeks. I am going to have to pick up a few different spur and pinion sizes as the buggy ratio diffs are going to make the gearing so low.

 

[chickenman242]

Haha I should Learn to read better
As for gear ratio id start at 65/18 and go from there my erevo is running 58/17 and that will spin all 4 wheels on bitumen
My e maxx is running 65/20 and has a real hard time keeping the front end down even with a centre diff,the mamba has massive torque so you can be quite flexible on ratio as long you check your temps even running on 4s
Speed wise I line my t maxx against my e maxx and they're even but put 6s on the e maxx and it will leave my t for dead

 

[override]

Haha I should Learn to read better
As for gear ratio id start at 65/18 and go from there my erevo is running 58/17 and that will spin all 4 wheels on bitumen
My e maxx is running 65/20 and has a real hard time keeping the front end down even with a centre diff,the mamba has massive torque so you can be quite flexible on ratio as long you check your temps even running on 4s
Speed wise I line my t maxx against my e maxx and they're even but put 6s on the e maxx and it will leave my t for dead

Well putting all my ratio's into a speed calculator I am going to looking at running a 50/25, 40/20 or 38/19.

I'm will be running a 4.30 diff ratio and 1.83:1 tranny ratio with 6.50" tires on 2200kv with 4s. With the three combo's listed above I will be hitting 40mph without tire ballooning. All the combo's give me the same final drive ratio I guess it's just a matter of finding which gives me less heat on my motor. I noticed all the pinion sizes I get in the calculator that give me the correct speed are half the size of the spur gear. So if I run a 65t spur I would need a 32t pinion. That would not work so I gotta step down on my spur

 

[slowngreen]

I never check out these tmaxx builds, glad I did though, that thing is sick!!!

 

[override]

Hehe thanks slowngreen! This tmaxx has transformed several times over the years. I bought it box stock brand new at a hobby shop in Webster, tx. This will be the final stage I think it will ever see.

 

[WoodiE]

Ohhh shiny!

Looking good.

 

[chickenman242]

Hot Racing go up to 31t pinion next spur down is 62t or 58t
Id adjust the spur size as they're cheaper
Once you get it sorted id suggest a wheelie bar

 

[override]

Thanks woodie!

Although you may have a point chickenman going that big in size may not be feasible. There is only so much adjustment on these mounts and I highly doubt they will accommodate such a large pinion and spur. Kimbrough Racing makes smaller spurs and traxxas makes the sizes I need aswell. I've done all my homework on this build ;-)

 

[override]

Well guys I finally got the conversion done and now have a full blown e-maxx! I have ran it a few times trying to figure gearing out and servo/throttle adjustment etc. I am running stock settings on the ESC with the most updated firmware. Running a 58t spur and 25t pinion with chevron tires I should be hitting 39mph according to the speed calculator with my diff and tranny gearing. When I slap the 40 series on it will bring me up to 44mph. Motor temps are staying around 100+- and esc temps around 110+- with the short runs I've been making.

I still have a few things to do, the body mounts are chewed up from flipping it a few times on concrete without a body. Picked up some delrin rod and was going to make some tower supports a long with getting a different pinion and rubber.

I only snapped a few pictures here and there of me finishing up the build but I will post them when I get the chance.

 

[chickenman242]

thats great to hear i'm just curious what ratio your diffs are?? i would of thought you'd get alot faster than that but thats still a good speed
i just cracked 100 km/h with my e maxx and that was crazy fast,i did like 2 runs then pulled her in
those temps are sweet ,you could prob go up another couple of teeth on your pinion if your going to run 4s

 

[override]

My diff ratio's are 3.31, I am using 4s and yeah I need to go up a few teeth on the pinion but its harder to find pinions that large in 32 pitch. I could go up to mod 1 I guess but then its hard to find larger spurs.

As for my speed calculations I have been going off of what the stock emaxx quotes for speeds because I figure that will keep the motor/esc temps safe. 40mph is my baseline speed for choosing my gearing. I'll get those pictures posted today after I finish up the crawler.

 

[chickenman242]

I'm still waiting on my 22t pinion, there doesn't appear to be much choice for pinions I ended up get mine from hot racing