Savage XL-E

[doo540]

Kershaw said 2 weeks on his tranny, so I also picked up another stock 3 speed to get by with. I took my 3 speed apart tonight, the diff gear was miss about half of its teeth, the gear that rides next to the black plastic gear had exploded, nothing but little pieces left, and the top second gear was missing a chunk too. I'm thinking I can remake all the gears that exploded, out of stronger material and better design, but is anybody planning on running with the 3 speed?

BTW with a 50 tooth center diff and a 14 tooth pinion (truggy setup) I would be right back at the same mph as running the 3 speed with stock savage rearend.

I'm also interested to see what the flux has for a stronger drivetrain, I hope they surprise us with something that can take the punishment of the brushless motors.

[doo540]

well I will tell you what isn't so good on the savage body and thats pavement at 45 mph on its roof. Backflips are to easy. I have the HPI wheelie bar, and that helps a lot, watching it ride a wheelie on the one rear wheel is cool.
I will be working on a new frame too, one that will hold the truggy setup, aluminum and carbon fiber versions.

[Janezki]

Originally Posted by doo540

Kershaw said 2 weeks on his tranny...

Is this based on a recent discussion with Dan? I noticed the release date hasn't changed (atleast) yet.

One thing I forgot to ask about the Kershaw tranny when I ordered it was that does the motor fit on it's place with stock radio box? Or have I got it completely wrong as I'm assuming that motor will be located at front side of the transmission?

[Savage03]

the discussion on the flux tranny sounds very interesting, larger everything it sounds like.
I must say after Janezki helping me the locked 2 speed seems the the way to go, so far no probs with gears. Like Janezki had said some time back make sure to take the time and shim the center tranny gears cause they have tons of side to side play, I also put some stuff from the bicycle world on my gears called white lightening, its for chains and like a non sticky wax.
Curious to see how these kershaw trannies are gonna work as well.

[doo540]

The spur gear will be facing forward in the truck. Not sure if it will hit the radio box or not. Should move the motor more forward in the chassis which is a good thing.

[doo540]

I dont know if you guys have run the numbers yet, but if you want to keep your gear ratio the same when you go to the direct drive you will have to gear up. The stock savage 3speed when in high gear is about 1.5 to 1, the direct drive internal gear ratio is 2.5 to 1 (45 tooth bottom gear and 18 tooth center gear). I current run the stock 52 spur with a 16 tooth pinion with the 3 speed, when I get the DD I will be upgrading to a 23 tooth pinion to stay at the same overall gear ratio.
Mohanjude, looks like you are using the Kershaw Motor plate, you should pick up the Kershaw battery boxes for your XL, the fancy ones that have the aluminum bottoms and velcro across the top, they look really cool.

[BL_RV0]

Doo540- How long is your battery? What is the max length that can fit in the XL TVPs?

[doo540]

Lipo 8400mah 35C 4S2P 14.8 Battery Pack is my current lipo.
45mm X 138mm X 50mm (?) I'm not sure on the height at the moment. I can check tonight. I think I can get a lipo about 158mm long in there if I move the battery tray closer to the spur gear. BL_RVO if you want I can remove one of the TVP's so that you can look right inside the truck.

...so how do the Kershaw units run? Dying to know...

..Dan is working on a slightly 'different' version for the E-Sav (non-Flux) too...

EDIT: Crap!!! Sorry, my bad...Mistook the kershaw motor mounts for the center drives in the pictures...

[doo540]

lipo area minus tvp

driveshaft clearance

empty battery area
My current lipo maxamp 4s 8400 30c
45 tall 65 wide 140 long

Max length I think you can install if you move the lipo bracket forward is 156mm
Max height current is 51 mm I think I can lower the bracket 3 more mm for 54 total without raising the mmm up in the air.

[BL_RV0]

Thanks for the pics man!
Unfortunately it looks like there is no way I can fit my 168mm neu pack in there...

[doo540]

BL_RVO
Maybe the kershaw drive will offer more room? I will post pics of that too, after I get it.
You could always make the tvp plates 20mm longer. I would guess that Kershaw could find you some drive shafts that would work.

[spiftacu1ar]

I was gonna get a 12t pinion to go with my direct drive. However, you guys are saying a 23t pinon?!? I (basically) have an XL with big joe tires, 52t spur. Running Mamba monster 2200kv combo (basically neu 1515 1y). What pinion should I go with?

[doo540]

Well the stock rear-end ratio is 3.31
The stock ratio of the 3 speed in high gear is 1.53 to 1

Kershaw Direct drive is 45 diff gear with a 18 tooth center gear=2.50 to 1
If you use all of these numbers, compare your old setup with your new setup, or just pick a speed you want to run, you can then pick your pinion size.
I need to run a 27 tooth (from a previous 16 tooth) to mantain the same speed (48 mph)
I'm also running a Neu 1515 1Y on 4s until my 6s shows up in the mail.

[spiftacu1ar]

Well, I don't have an old setup to compare it to, lol. I just ordered my brushless setup and the gearbox at the same time. I was running a nitro before, and I don't know what kinds of loads the electrics can handle before overheating, which is why I was asking.