Converting blx 4×4 from 0.8 to mod1 gearing

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K-BASH

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Arrma RC's
  1. BigRock 4x4
  2. Mojave
  3. Notorious
  4. Senton 6s
  5. Senton 3s
  6. Typhon 6s
So decided on a blx 4×4 speedrun build in near future...decided to run mod1 for more speed gearing options.did some research,an basicly copied rich Duperbash's 90mph big rock video on building a spool....gathered up 38t plastic traxxas spur an some other parts an winged it....ended up going a bit different route as I got going.ready to test out 26/38 an see how it goes tomorrow after everything drys some.ill figure out what works best an update throu process...ended up doing alot of fileing before I got a smooth mesh everywhere.wont get into much until I make sure what works...max8 tp4050cm 2300kv. Should run into 70s on 4s.

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Dude...that dirty chassis, trashed looking esc and electrical tape is giving me anxiety. Haha
This is my 1/10th park basher that gets beat on,it'll be my test ride.only 1/10 I own,till I get vendetta.it'll be setup for speed,see if 80s will knock the dust off.lol.truck looked like this yesterday,I'll have it at 100ish within a week if spool will take it...JUST TESTING SPOOL OUT..getting spool ready for detta.

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If the motor is only running at 30000 rpm on 4s, is it possible to run it on 6s? Or is that asking too much of the rig?
delta. The highest kv motor I have at moment.its a 8s high rpm motor designed for 8s....my goal is 100mph with spool.ill add power till something gives.
 
This is my 1/10th park basher that gets beat on,it'll be my test ride.only 1/10 I own,till I get vendetta.it'll be setup for speed,see if 80s will knock the dust off.lol.truck looked like this yesterday,I'll have it at 100ish within a week if spool will take it...JUST TESTING SPOOL OUT..getting spool ready for detta.

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delta. The highest kv motor I have at moment.its a 8s high rpm motor designed for 8s....my goal is 100mph with spool.ill add power till something gives.
Messing with ya. Looks like a well used/fun producing RC!
 
Nice! Can’t wait for the results. 👍
Nice! Can’t wait for the results. 👍
How you liking your mega????I'll probly get mega then detta body..Hopefully I can figure out a dependable spool without much breakage.ill be going all out with big amps an kvs..never s-ran with lower volts,high amps an high kvs..should be fun.looking hard at the scm 2 pole Tp motors.
 
Did you balance the spur/spool that you made? I see the screws added, and that thing is going to be spinning pretty fast.
 
How you liking your mega????I'll probly get mega then detta body..Hopefully I can figure out a dependable spool without much breakage.ill be going all out with big amps an kvs..never s-ran with lower volts,high amps an high kvs..should be fun.looking hard at the scm 2 pole Tp motors.
I’m loving it so far. 👍 it’s my first 3s rig, so it’s been a little bit of a learning curve.. changed out the crap servo for a DS 25 kg. What a pain in the A$$! Didn’t realize it was 23T saver either.. so I just mashed it on there. 😜
Other than that I’m excited to get it outside once it warms up.

I’ve been looking at peoples mod 1 conversion tho, as I’m sure I’ll try and speed run it eventually.

Can’t wait to see what you can pull out of them. 🤙
 
I got into speed with 1/10 in past an I remember the slipper an lightweight made it much harder to run than 6s c-diff.see what happens.ive learned more about speed since then.think my 1/10 pb is like 82mph.run it tomorrow,this first spool wasn't the best,but centered &an spins strait.next one will be cleaner.
 
I got into speed with 1/10 in past an I remember the slipper an lightweight made it much harder to run than 6s c-diff.see what happens.ive learned more about speed since then.think my 1/10 pb is like 82mph.run it tomorrow,this first spool wasn't the best,but centered &an spins strait.next one will be cleaner.
You have pic of it!?
 
You have pic of it!?
Not of 82,but here's truck I used,kept going airborne, probly 2 yrs ago

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Quik test out front of house,all good so far.mod1 sounds a bit different in 1/10...Rained last 24hrs...Hopefully dry up tomorrow.probly have to add some downforce to control it...I'll build another,better spool an then see how much abuse this one can handle then share what worked best..zero suspension travel,see if it'll stay on the ground...1lb lighter than same size swb 1/8 85% finished project....

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1st test went good for spool..19 degrees here today..above 50mph thing starts to feel light an squirrelly.make some adjustments, figure out how to mount a wing an try again. Get it going strait an under control an try 6s...

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Not of 82,but here's truck I used,kept going airborne, probly 2 yrs ago

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Quik test out front of house,all good so far.mod1 sounds a bit different in 1/10...Rained last 24hrs...Hopefully dry up tomorrow.probly have to add some downforce to control it...I'll build another,better spool an then see how much abuse this one can handle then share what worked best..zero suspension travel,see if it'll stay on the ground...1lb lighter than same size swb 1/8 85% finished project....

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I meant the spool!! 🤣
 
I meant the spool!! 🤣
1st pic on thread...next time I take it apart I'll get pics.if it'll handle 6s it should be good for what I'm gonna do..
Plan on 3,4s 3000-4500kv 130+++++mph
Took it apart to inspect,used basher bearing in truck in rough shape.few more runs then I'll build another cleaner spool..spool weights 17 grams compared to stock 39 grams.very noticeable difference
 

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Heres the parts I'm useing

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The 38t gear fits hub perfectly making centering all good..👍I just need to drill cleaner holes an bracketry
They also make a 0.8 gear..ordered a 36t to try

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