us4phil

iTrader: (2)

My son raced the slash 4x4 for 2 years (we still have it), In my opinion it is a capable racer, we did not sink alot of $$ into it other than lcg and kingheadz motor mount. He did not win but consistently placed 3rd-5th on the same lap as the leaders, out of 10 trucks. He was the only slash out there. He now races with a scte but we still like the slash 4x4. The most important thing is alot of practice, I dont care what kit you have, if you dont practice, you will not (in most cases) see the difference between a slash and scte.

MaX-D

iTrader: (2)

+1! Driving clean lines without crashing is the key to faster lap times. A guy at my track who normally races a SCTE 1.0 MIP conversion once raced his buddies box stock Slash Ultimate 4x4 to prove a point to him, that you don't need to put tons of money into a truck, or have the latest and greatest to win . The only thing he did to that truck was set the ride height, camber, changed the shock oil and shock position on the towers and arms, and put M3 Calibers on all 4 corners. He not only TQ'd, but won the A-main! Man were the Losi and Tekno guys mad. It was AWESOME to watch. He is a GREAT driver. You should see him drive his Losi. Just flat out SICK!! Like poetry in motion.

aznewmanfan

I just built a traxxas slash 4X4 with the castle creations MMP SCT 2400kv system and I'm wondering about the gearing. I will be using a 4s 6500mah 60c lipo. I saw a video on youtube, everything was identical and his truck had a 25/50 and he said that it ran relatively cool as long as he didn't drive it too hard. It had tons of speed and wheelies on command. My truck has the stock 54t spur gear and I don't want to change that. Does anyone know if a 25t pinion will fit with the stock spur gear? Any information would be a big help and greatly appreciated! Thanks in advance!

MD

iTrader: (136)

New Rally Cross body.
http://racepf.com/off-road/pfrx-rallycross-clear-body/

Photocycler

iTrader: (36)

Hey guys. just got a slash and had some questions. I am running the Platinum LCG with the 4 pole and using my futaba radio. It seems in the air the car likes to dump the front hard under braking. I have had to turn the braking way down to keep it manageable.

anyway else have this issue and find a way to control it better? I am thinking its probably due to the non-sensored motor not being as smooth so its more of a off/on thing.

One Mile Up

Hello fellow Traxxas owners!

This is my first Traxxas purchase... I just picked up a Slash 4X4 RTR TQI w/iD for my boy (5-1/2 years old), I plan on using the training mode to get him up to speed as far as controlling the truck.

Is there anything I need to do to this puppy in order to get up and running? I like to comb through a vehicle before bashing the crap out of it!

Thanks!

~ Darryl

MaX-D

iTrader: (2)

When you hit the brakes in the air it will bring the nose down. If you hammer the throttle it will bring the nose up. Don't turn down the brake. You will need it if the nose goes straight up in the air.

Dcuda69

I'm not sure there's enough room for a 25t pinion with a 54 spur. It could probably be done with some mods. That truck will be an animal. Hope you have upgraded stuff such as driveshafts and diffs(I'm sure you have) I have the 2400kv funny car(same as Castle) in mine with a 3s..it's a hoot but broke stock shafts immediately(MIP X-Dutys fixed that). I run 18/54 and it runs very cool...actually gonna go up to a 20t just to see how it works. These 2400kv are a good fit for a Slash 4x4..tons of torque/power/speed and no heat. You could ask over in the Traxxas community..plenty of good guys with overpowered Slashes there.....lol ....maybe someone has done the 25t pinion. Good luck and have fun!

MaX-D

iTrader: (2)

What's the best and most efficient sensored motor kv/Turn wise to run in the Slash 4x4 on 3s. I'm Replacing three 2s batteries because one puffed and the others are starting to not hold a charge. I want to go to 3s to get longer run times and keep heat down. I'm running a Tekin 1st Gen Rx8 with a Pro4 4000kv motor now. It doesn't have to be a Tekin motor. Although I don't race, this truck is only driven at the track. It's never bashed. I'm open to any and all suggestions. Thanks.

Dcuda69

Just switching to 3s won't up the run time, only increasing mah will. 3s will make more power for sure but will also make more heat. I think you will want to drop kv with 3s in order to keep temps under control. I'm just a basher so I went with the 2400kv. Geared 18/54, I can beat this thing like I stole it, through grass, wot runs down the street,etc. Haven't got the motor over 150f after a full SMC 3s/5000mah/50c pack in 70f ambient temps. I would think for a track only truck you could go up a little in kv(2800kv-3000kv?) and gear(20/54?) and still keep temps in check. Just my 2 cents...post back with your choice and results. Good luck!

MaX-D

iTrader: (2)

I don't want to run my current 4000kv motor on 3s. I think I'll try a 2800kv motor and see how it goes. Would you recommend a 550 or 540 sized can? Do you have any motor brand recommendations? I've been using SMC 6500mah 70c 2s batteries. I live in South Florida and the heat here can get pretty brutal (90+degrees - 90% or higher humidity). This is one of the reasons why I want to switch to 3s. HEAT!! If I go with a SMC 5000mah 3s, will that increase my run time over the 6500 listed above?

Dcuda69

I'm certainly no expert, there are guys here that are FAR more knowledgeable than I am about this stuff but I'll tell what I know to this point.

Technically, in the exact same vehicle under the exact same conditions a 5000mah pack will give less run time than a 6500mah pack...think of mah as the gas tank...more mah,more time.However if you change motors/esc/conditions that all affects run times. I get about 20 min. bashing pretty hard with my 4x4 geared 18/54 and a 2400kv using a SMC 5000mah 3s.

The 2400kv I have is the funny car motor(Castle Creations). It is a 550 can motor which I'm told makes more torque(good in a 4x4) You will have to rearrange stuff to make a 550 can fit. I moved my receiver to the front and turned the esc sideways..other than that it fits fine. With your ambient temps and being a track truck I would think a esc fan, a good motor heat sink/fan and 18/54 gears should get ya close? Just my 2 cents....head over to the Traxxas forum and ask around..lots of smart guys there with a LOT of Slash experience.

MaX-D

iTrader: (2)

So a 6500mAh 2s 70c battery will give me longer run time than a 5000mah 3s lipo?

Dcuda69

From what I have read and been told..yes. All other things(motor/esc/terrain,etc) being equal.

ta_man

iTrader: (168)

If all other things are equal, including the motor, quite possibly yes.

But a sensible person wanting to run 3S LiPo would not choose the same motor as a sensible person running 2S LiPo.

With the correct motor choice, the 5000 mAHr 3S would give you more run time than a 6500 mAHr 2S. The 3S pack has 15% more energy in it (55.5 WH vs 48.1 WH) [WH => Watt Hours].

If you want a sensored motor for 3S I would recommend either a Tekin 2500KV Pro4HD or a Tekin 2700KV T8i. I currently use the T8i on 3S in a rather overweight Losi SCTE. You might also consider a Tekin 3300KV Pro4 or a Hobbywing 3400KV XERUN 3656. Another possibility is a Novak 7.5 turn Ballistic 550. I have run that on 3S in a electric converted CRT.5 that is easily as heavy as or heavier than a Slash 4X4. It is 3000KV.