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Author Topic: Traxxas Slash 2wd  (Read 2727 times)
mccaul88
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« on: May 06, 2012, 02:56:10 PM »

anyone know what happened to all the good info that john had posted in here. looked over site and could not find the thread..
« Last Edit: May 24, 2012, 02:45:09 PM by Johnny-RC » Logged
RoyB
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« Reply #1 on: May 06, 2012, 03:26:12 PM »

I asked Johnny about it. He said that the thread had been deleted and he was going to start a new one. The thread had a lot of good info in it and I used it for reference.
« Last Edit: May 06, 2012, 06:40:26 PM by RoyB » Logged
Johnny-RC
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« Reply #2 on: May 24, 2012, 02:44:40 PM »

I will be reviving the 2wd Slash thread soon. Unfortunately it will be all new, but I will cover most of the old stuff too. Been focusing a lot of attention on the STRC LCG Slash as of late. It did pretty well at the showdown. Lots of new stuff to post.

In fact why don't we just get this thread rolling again.... this will be the new one... any and all 2wd Slash stuff can go here.
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Johnny-RC
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« Reply #3 on: May 27, 2012, 03:08:05 PM »

Been focusing on making the STRC LCG Slash lighter. Just got done measuring its weight on a cheap-o Harbor Fright digital scale and so far I'm down to 1796 grams. This is without a body or a battery.

Unfortunately I have no idea what the weight was to start out with.
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Johnny-RC
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« Reply #4 on: May 27, 2012, 03:21:13 PM »

1796 grams is about 3lbs. 15.35oz. So I'm still about 5.1 oz. heavier then a FTSC10 (based on what Chris posted his at)
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mccaul88
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« Reply #5 on: May 27, 2012, 04:21:06 PM »

thansk john. i used that thread alot. came in very handy.
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RoyB
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« Reply #6 on: May 27, 2012, 06:07:16 PM »

My STRC LCG weighs 4lbs 2.8ozs. So mine is about 3.5 ozs more then yours.
The shelf I built for the ESC added about .3ozs.
The 60a hobbywing ESC I am using weighs 2.82ozs. The Justock ESC weighs 2.08 ozs. Could save about 3/4 of an oz there.
What lighter parts have you changed out?

Couldn't wait any longer and went out to funworks today to try out proline steering. The steering was more sure then before. The whole thing just seemed to be more stable. Don't know how that could be, maybe I was just more relaxed not worrying about steering.
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Johnny-RC
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« Reply #7 on: May 27, 2012, 06:30:28 PM »

Roy that is good news about the Pro-Line bell crank. Just finished installing mine the other night as well. The only major difference over the 4x4 bell crank that I notice was much less slop. Although I haven't ran it on the track yet.



I will go over a bunch of stuff I have done in the next post.
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MotorMouth
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« Reply #8 on: May 27, 2012, 06:53:57 PM »

Roy what you are experiencing from the new steering rack from proline in definately from the rigidness. A more solid/ rigid steering assembly will be more precise through the corner and also result in the feeling of more steering, because the rack stays true. It is the same reason why most people who run the AE cars run the new AVID steering assembly or run thier servo savers glued. I run mine glued in my AE cars just for the feel of a solid steering assembly.
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« Reply #9 on: May 27, 2012, 07:16:16 PM »

Derek the funny thing about the pro-line plastic is that its actually much more flexible then the slash 4x4 bell crank and way less "rigid". I think the more precise fell is coming from it not being as sloppy in the joints, more precise machining. The pro-line rack still has a servo saver like the 4x4 one, but it also is more precise and less sloppy. I will say this though you are right the rigidness in the aluminum shaft for the servo saver is helping a lot. Nice that its also adjustable.
« Last Edit: May 28, 2012, 08:46:08 AM by Johnny-RC » Logged
RoyB
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« Reply #10 on: May 27, 2012, 08:16:59 PM »

One of the things I noticed was that going down the long straight away I did not need to make constant adjustments to the steering. Maybe an experienced driver makes these adjustments without realizing it, but I need to think about them.
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« Reply #11 on: May 27, 2012, 10:14:40 PM »


Well here it is, my STRC LCG Slash. The "Super Slash" I have dubbed it.
 Wink






This vehicle has taken a long time to get to this point. I have slowly been upgrading and changing things over the last few years with this Slash. It was once a bone stock Slash. Many will argue why waste the time and money on a Slash when you can just buy an SC10 or Blitz or XXX-sct. Well there are two parts to that answer for me.

Back when my son and I decided to get back into the hobby the Slash was the dominate SCT on the market, the truck that started the whole SCT craze to begin with. The SC10 hadn't came out yet and the Slash seamed a great entry level truck for my son. The Slash is known for taking lots of abuse as Traxxas has made it very tough with the basher market in mind. This fact was also a selling point for me knowing my sons poor driving skills I could rest assured that this tuck would take some punishment at the track. Also at the time it was nice to know that Modesto Hobby stocks lots of Traxxas parts as they currently still stock very little Team Associated stuff.

The second part is that its a personal challenge to prove that this truck can be made race-able. I guess its the constant enjoyment of tinkering with something and upgrading that is half the fun also. The Slash has lots of option and upgrade parts not just for racing but bashing as well as being a platform for many other wild projects people have done over the years. Its kinda like the RC10 of today I guess. I guess another part to this is the underdog syndrome. Its great to beat up on guys with this truck.

My son has unfortunately decided to quite racing however and I have since taken over the truck. He might come back to racing some day.

Anyway here it is....

This pic shows the STRC LCG kit that is used with the Rustler chassis.



If you look close you can see the top plate is carbon fiber which is an upgrade. Here is a link to the STRC kit I used. This kit basically just makes the Rustler chassis longer to makes it just a little bit shorter then the stock Slash length. They come in more colors then blue BTW.

STRC Slash LCG kit

However like I said above I ordered the light weight kit which came out awhile after the original kit. Here is a link to that....

STRC Light Weight kit

To use this kit you will need the Rustler Chassis, top plate and battery strap.

Rustler Chassis

Rustler top plate

Battery hold down


This pic shows a few shock mods I have made.



The stock Ultra Shocks come with plastic shock caps that are notorious for popping off with a hard impact the cap flexes enough to let loose. A simple fix for this is to upgrade to the Traxxas aluminum caps (which they sell in a few colors). Some people think that you need to replace the entire shock with something more expensive. I have had great success with the stock shocks and they are actually lighter then the big bores. I also upgraded the shock shafts to the Titanium nitride ones as the stock steel shafts will bend over time. I have also done away with the stock progressive rate springs and went with linear rate Losi Greens on all corners. And the last shock mod I have done is to remove the stock shoulder screw that holds the shock cap to the top of the tower with a bushing and a long screw and nylock nut. This mod eliminates the shoulder screw from falling out and losing suspension during a race. If you do this mod don't tighten the nut all the way down to the bushing, you actually want it to be a little loose so the shock can pivot on the screw.

Traxxas Aluminum Ultra Shock Cap

Traxxas XX-Long Hardened Steel Shock Shafts rear

Traxxas Hardened Shock Shafts front

Losi Shock Springs 2" x 3.5 Rate (Green) front

Losi Shock Springs 2.5” x 3.7 Rate (Green) rear

Kit with bushing to replace shoulder screw


Hard to see in this pic but it shows the Pro-Line steering rack and the STRC light weight turnbuckles (made in different colors).



Pro-Line Performance Steering Kit

ST Racing Concepts Aluminum "Pro-Lite" Turnbuckle Kit (Blue)







In the above pic you can see the STRC hing pins kit. This kit eliminates the stock screw in hing pins with ones that have a nut on the other end. These pins stop the annoying hing pin unscrewing issue the stock ones are known for. They are also much harder and as of yet I have not bent them like the stock ones can. I have also removed the right rear tire and gear cover so you can see the STRC top shaft that lets you use the Team Associated spur and slipper unit. You can can also see the RPM rear bumper which is much lighter then the original. In the first pic you can see I'm also using the RPM front bumper, also lighter then stock. Also RPM rear C-hubs that are stronger then stock and lighter then the Traxxas aluminum upgrade ones. Also notice the STRC CVD drive shafts that replace the stock telescoping u-joint shafts. A few things you cant see in this pic that are internal in the gear box are a Traxxas ball diff and machined delrin top gear. Both lighter then stock and make the gear box nice and quite. The Delrin gear I have yet to test on the track, not sure how it will hold up with mod motors but it should be fine in stock which is what I'm building this rig for. The ball diff on the other hand has been working great. Haven't used it with a mod motor though.  

ST Racing Concepts Heat Treated Polished Steel Lock Nut Style Hinge Pin Set (Black)

ST Racing Concepts CNC Machined Transmission Layshaft

RPM Black Rear Bumper (Slash)

RPM Front Bumper & Skid Plate (Black) (Slash)

RPM Traxxas Rear Bearing Carriers

ST Racing Concepts Heat Treated Steel Driveshaft Kit

Traxxas Ball Differential: SRT

Traxxas Machined Delrin Drive Gear




The above pic just show the bottom of the STRC kit. It was once nice blue machined anodize. The black you see sticking out to the left past the aluminum is more of the carbon fiber STRC lightening kit.





This pic shows the Traxxas Aluminum caster blocks that I use. If I could get away with using the RPM ones I would because they are cheaper and lighter. But in this situation the Aluminum is needed because the king pin that goes through it must not bend. With a flexible plastic caster block the king pin will bend if there is a hard enough hit to flex the plastic. I have tried both the stock and RPM casters here and the Aluminum ones are the only ones that eliminate this problem. Also in this pic are the RPM steering blocks. Stock ones are fine but eventually break.

Traxxas L/R Aluminim Caster Blocks 30 Deg (Blue)

RPM Traxxas Front Bearing Carriers






This just shows the front shocks with the aluminum caps and screw/bushing mod that I did to the rear also. Also shows the front RPM shock tower. The stock rear tower I have yet to break, now that I have said that......

RPM Front Shock Tower (Rustler,Stampede,Bandit,Slash)


There are still more ideas I have for this thing.... but until then I think I have typed enough for tonight.







 

« Last Edit: May 28, 2012, 08:54:50 AM by Johnny-RC » Logged
MotorMouth
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« Reply #12 on: May 27, 2012, 10:19:22 PM »

Very nice Johnny. You need pro lines new transmission they are making for the slash now.
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« Reply #13 on: May 27, 2012, 10:53:22 PM »

Thanks for posting this, Johnny.
The Aluminim Caster Blocks will be the next thing I buy. Tired of changing bent pins.
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Johnny-RC
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« Reply #14 on: May 27, 2012, 11:07:38 PM »

Derek, yeah interested to see how the Pro-Line gear box works out and how it gets priced.

Roy no problem man. Making the Slash fast is a labor of love that I also like to share with anyone trying to do the same Smiley

It will be interesting to see how these new turnbuckles hold up also. They sure are a lot lighter. I have some setup sheets I will have to try and fill out and post here also.
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