• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • ✓ Friendly & passionate RC enthusiasts
    • ✓ RC tips & troubleshooting
    • ✓ Buy, sell & trade RC gear
    • ✓ Share builds & upgrades

60 mph Savage Speed

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
That should do just fine… Looks like you still have plenty of room to move the engine to the left if you go smaller on the spur too.
 
I just have to see what the motor is going to do with the gearing. I'm pretty sure its the tallest gearing ever put in a savage.
 
Snook would a flux pinion work?

http://www.rc-monster.com/proddetail.php?prod=5mmmod1pinion

I use these on my flux and love them

Also I must ask, when you drop the gearing so low, do you make any other changes to the tranny clutches? I know you run TI pawls( by the way how are they holding up) I made a pawl out of nickle but I managed to destroy the pawl the first time testing it lol.
 
To what?

Rotational mass plays a huge role in high speed runs. The heavier the wheel the less powe being put on the ground. The lightest wheel combo I have found is proline hole shots with proline vtr rims weighing a total 194g each. My rims now weigh 268g each brand new. Baja 1/5 scale wheels are solid but they weigh over 1lb a wheel
 
You're running a low profile flat street tire. Just try a stock Savage X tire in it's place. A larger tire is like a taller gear ratio.
 
Who knows, it's worth the try. At a certain speed, if you have enough room, even the ballooning might push it over the top.

Meant to ask, what kind of camera are you using since you're getting such good audio at such distance?
 
Any mod 1 pinion would work if the bore is the same diameter as the slipper shaft. The rc monster pinions are excellent, but I also like the Tekno pinions and they are available in many tooth counts in 5mm bore.
The Ti pawls are holding up well, I'll know more this spring when I do more testing and finally get to let her rip.
The only change I make internal of the transmission other than the pawls and adjustment springs is my 3rd gear ratio of which I have several different options for gearing. I'm running the smaller diameter XO-1 wheels and tires so my ratio needs to be a lot taller than it normally would be with a MT size tire.
 
wouldnt 2wheel drive net you some speed as you could eliminate the drag of the front axle, and eliminate the weight of the dogbone, 2 cups and differential assembly?
 
Now have you figured out any new springs for the pawls. I tried to double the spring up but it was to stiff.

---------- Post added at 10:29 PM ---------- Previous post was at 10:26 PM ----------
bifft it said:
wouldnt 2wheel drive net you some speed as you could eliminate the drag of the front axle, and eliminate the weight of the dogbone, 2 cups and differential assembly?
Click to expand...

Yes but when the front cvd dogbone broke and made the truck RWD it was almost impossible to drive. The truck under light throttle wanted to spin around. It would spin around when it shifted into 3rd as well. My picco has a ton of power and it doesn't help that the ground is cold not allowing my tires to grip. I'm sure in the summer it would be a different story with RWD.
 
I’ve tried about every spring that will fit in the hub. For 3rd gear I use 2 light weigh spring rates doubled up (threaded inside each other). For my twin engine build I’m gonna try to make my own 3rd gear clutch hub so that I can use a larger diameter spring.
 
Rolex said:
Meant to ask, what kind of camera are you using since you're getting such good audio at such distance?
Click to expand...

I am using the Flip HD video camcorder. The other reason you hear the truck is the ERCM endbleed. I have 3 but this one is the loudest.

---------- Post added at 9:18 AM ---------- Previous post was at 9:16 AM ----------

Snook may I ask where you found a light weight spring the size we need?

I have a feeling that running this super tall gearing I may need to adjust the pawl in the 3rd gear
 
If I could remember where I got the springs I would gladly share. I rummaged through all my parts one day and found the springs in a super glue tube. I must have stuck them in it years ago and have no idea what they are from.
 
Haha i completely understand. When one has so many spare parts they tend to get lost, then one day when your not looking for them, you find them lol.

I wonder if a BIC ball point pen spring could work.I would guess its a little stiffer but how much idk. Do you know of a way to test the stiffness of such small springs?
 
I tried using a gram scale that I used to weigh tires with.... take a known one and compress it about half way on the scale to get the reading then used it as my baseline for lighter or stiffer.... kinda worked. It was the only thing that got me close.
 
interesting idea, ill try it out later today and see what I come up with
 
I popped the spring out and lost it so I had to find one that was close. That was the only thing I could come up with that worked. Granted, not perfect but it gets you closer than the squeeze with the fingers trick.
 
As soon as it warms up a bit and the wind dies down ill go make another pass
 

RC Builds

Back
Top