Alex's SuDu 2.2s.
 

Hi all,

First of all I'll like to thanks Tomi for letting me run and test this chassis.

I just finished my rig, got the links figured out and the electronics wired. I'm just waiting for the C Hub adapter to get this truck running. I have a machinist issue but it's getting fixed.

http://imageshack.us/a/img6/1153/dscf7006m.jpg

http://imageshack.us/a/img706/8901/dscf7002v.jpg

http://imageshack.us/a/img703/1013/dscf7007i.jpg

http://imageshack.us/a/img10/7348/dscf7005u.jpg





Here's a part breakdown.

Electronic
-Futaba 4pl and r2104gf rx
-Futaba S9157 servo
-Tekin 4fxr with a big cap
-Crawlmaster 13t high fill, lathed can, lightweight endbell hardware, xtra hard spring ...
-Lipo 3s Nanotech 850mah

Front axle
-TAG axle conversion
-VP wraith C Hub and knuckle
-Dlux no slop bushing
-HD worm
-Custom front plate

Rear axle
-Dlux chromo worm
-CF shark fin

Tranny
-Custom AL shaft
-Custom CF motor plate ( not pictured)
-HR gears

Chassis and suspension
-Team NCD SuDu
-Lathed Traxxas BB
-5mm Al lower
-3mm cf rod upper.

Misc
-FMJ mod
-Lightweight hardware





More detail to come.

Feel free to comment.



Thanks
Alex

Re: Alex's SuDu 2.2s.
 

Went together nice. From the link angles it looks like you're going for pretty high skid clearance. Looking forward to driving impressions. I see you wound up with centered driveshafts. What happened with the other tranny position? Right-rear lower link into the driveshaft?

Lexan sideplates? Are those just for fit-up, or is that an end-item? I always thought of Lexan as pretty flexy. Anyway, looking good.

Re: Alex's SuDu 2.2s.
 

Just give up! It's never gonna work!:lmao:

Glad to see you running the bigbores! They are heavier, but so buttery smooth!"thumbsup"

A brushed motor! Let me know how that works out! That pinion looks big, you might loose some smooth throttle on the low end.

Great build as usual, even though it looks like you murdered someone on your body!

Re: Alex's SuDu 2.2s.
 

Fairly clocked axles there. It really needs the TAG conversion to get the caster right...

Re: Alex's SuDu 2.2s.
 

Nice start, Alex!

In our earlier talks you mentioned drive shaft or link clearance issues. What was causing it and how did you solve it?

Tomi

Re: Alex's SuDu 2.2s.
 

I sent out these to Alex for testing. Dr. Frank is using the exact same chassis plates but cut them out on his own in cf.

Once there is a final design I will replace Alex's sideplates with cf ones.

Re: Alex's SuDu 2.2s.
 

Thanks Bill, I think is due to the angle of the shot. Not a bellydragger but not a monster truck either. My shocks need some attention. The shafts are from 4" shock and the bodies are from 3.5 so I need to limit them a lot. I'll keep looking for the right shafts and if I don't find them I'll order some.

With the other skid I dont know about the driveshafts, havn't tested it that far. With a milled skid the left lower was getting into the gear holder bracket of the tranny. Anyway I thought the motor would stick out more but it's not that bad. Sure the chassis is leaning on the left but we'll see how she run and if that can be fixed with some tuning



:ror:

I never tried scx10 shocks :mrgreen: traxxialfest shocks :flipoff:

I like big bores, smooth, cheap and rebuilds are easy.

I want to give it a try, the pinion is 19t, the smallest pinion you can fit is 16t. I'll see how she run and if the motor can hold up

Looks like I ran over a pothead :ror: in fact I murdered the body, that's the original body of my lcc, I soaked it in soapy water for a couple hours and the paint was easy to remove with a sponge.

More adjustability is better, you can choose to run whatever you want rather than being forced.



Thanks Tomi, the cleareance issue as metionned above was caused by one lowers getting into the gear bracket but haven't really tested, I milled my skid, bolted the trans and saw that th bracket is right where the left lower is so choosed to run the other skid. To solve it I used the skid for the centered driveline. I can give the other one more testing but I like the centered driveline and the clearance I have

Re: Alex's SuDu 2.2s.
 

Looking good alex...
I can see that with the big bores, the chassis is long enough for the shocks.. With the dr. Frank version (same sizes) and the scx shocks, the shocks were a bit to much layed down.....

Re: Alex's SuDu 2.2s.
 

Yes, very good start "thumbsup"

I want it a bit lower, so i limited the shocks to 85mm EtE, with 88-90mm EtE there might by no prob with the mounting points and angles.

Greetings Frank

Re: Alex's SuDu 2.2s.
 

Man those are some good looking spring cups.. Oh, the rest of the rig looks pretty good too:mrgreen:

Looking awesome man. I love how the set up looks. And that body.. Sick stuff right there bud8)

Re: Alex's SuDu 2.2s.
 

When Rubbaneck "invented" the mod, he said he just ran down the spring perches on the left side shocks to level it up and had no subsequent performance issues. But I think guys ran stiffer springs back then so dunno.

Re: Alex's SuDu 2.2s.
 

But layed down shocks seem all the rage these days. Looking at pics of recent Ringer and CreationFab builds, their shocks look even more horizontal than Frank's. Mine came out a little over 40 degrees (90 vertical), which is about 10 less than I was expecting. I haven't figured out why yet, and it's not yet a driver.

Re: Alex's SuDu 2.2s.
 

Don't know about a losi, Never driven one.. But for my own cars, i still like to be a bit around the 45degrees

Re: Alex's SuDu 2.2s.
 

Gracias amigo

I had to put some on this truck:mrgreen:





Time and testing will tell.


Thanks Douwe, I'm very bad at reading angles on picture they all look the same to me:mrgreen:




My target weight for this truck is 1450g then I'll see how she handle and if it's not too light. Right now I'm at 1406g rtr except the C Hub adapter and steering linkage and the balance point is 7mm behind the front lower link mount at the chassis.

Re: Alex's SuDu 2.2s.
 

Here's a shot with tires on

http://imageshack.us/a/img571/1338/dscf7008m.jpg

Re: Alex's SuDu 2.2s.
 

You running any knuckle weight yet? Or planning too?

Sent from my GT-I9300 using Tapatalk 2

Re: Alex's SuDu 2.2s.
 

Alex , on mine with the tranny flip my rear shocks are the same, but my front I had pink Mini t on one side and red mini t on the other. The shock oil stayed the same all around."thumbsup"

Re: Alex's SuDu 2.2s.
 

Nope, no KW. Not sure yet if I'll run some



Thanks for the tip Thommy"thumbsup"








I lowered my uppers both at the chassis and the axle. I moved my shocks also. I'll leave as it is for the first run.

Here are some more detailled shot of the front plate.

http://imageshack.us/a/img577/4154/dscf7010f.jpg

http://imageshack.us/a/img827/8382/dscf7016k.jpg

http://imageshack.us/a/img202/3167/dscf7018y.jpg


http://imageshack.us/a/img24/1674/dscf7014a.jpg

http://imageshack.us/a/img19/2413/dscf7015s.jpg

Re: Alex's SuDu 2.2s.
 

Looks great. Love the front axle plate. I would buy one for sure.

Re: Alex's SuDu 2.2s.
 

Won't the shock absorbers mounted that far out from the centre get in the way for the wheels when you turn?
(But then again, add enough caster angle and they won't...)

Re: Alex's SuDu 2.2s.
 

Thanks "thumbsup"

Please this thread is not a feeler.




I don't see major issue coming with the tires on. Only clearance issue I might have is between the rod end and the c hub adapter. But that can be easily fixed.















I cutted some al cross braces for the chassis.

http://imageshack.us/a/img844/5793/dscf7038h.jpg



To do list

-Cut the revised cf motor plate.
-Knock off as much weight as I can from my HR idle gear.
-Mount the C hub adapter when I get them
-Make some steering link

Re: Alex's SuDu 2.2s.
 

I'm just curious, can you flip the lower rear links, so that the bend is closer to the axle?

Re: Alex's SuDu 2.2s.
 

Yeah I could, but that will leave the shaft exposed.

Sometimes to much clearance in the link can hurt the progression.

Re: Alex's SuDu 2.2s.
 

Looks like you have barely any shock shaft shining thru those limiters. Is it as limited as it looks?
(Looking at post #18 on the jig)

Re: Alex's SuDu 2.2s.
 

Yup, not a feeler. Just saying its looks to be a very well made piece."thumbsup"

Great build. Cant wait to see some videos and action shots of it.

Re: Alex's SuDu 2.2s.
 

Yeah my shock definately need some attention, but that's not as drastic as it look. Travel seem to be OK but I'll like a little bit more.


No problem man, just wanted to get it clarified at least once in the thread "thumbsup"

The front plate will do for now but later I'll try do a plate with the servo and the batt under to get everything as low as possible.

Re: Alex's SuDu 2.2s.
 

Most work on the trans is done so I putted it on the scale.

The trans is weightin 47g with HR gear :twisted: and with my motor 198g. I started at 215g with a "stock" 15t crawlmaster medium fill. The weight lost is coming from the motor, the motor plate and the trans shaft. The HR gear are heavier than stock.



http://imageshack.us/a/img856/8664/imageniem.jpg


Also I milled the skid to mount the trans 2mm lower. I think I can remove 2 more mm, we'll see.

I'll try to get pic later.

Re: Alex's SuDu 2.2s.
 

Got some new wheels made for this truck to test.

http://imageshack.us/a/img849/6562/dscf7047t.jpg

Re: Alex's SuDu 2.2s.
 

Any pics of the motor plate?

Re: Alex's SuDu 2.2s.
 

Here's a shot of the motor plate, I removed more material from the skid, my motor is sitting dang near the chassis. 3mm lower than stock is safer for proper gear mesh adjustement.

http://imageshack.us/a/img109/976/dscf7049d.jpg

Re: Alex's SuDu 2.2s.
 

That is awesome. Love all the carbon work on this rig. you made the rims also? This is motivating me to finish my losi build.

Re: Alex's SuDu 2.2s.
 

Thanks man"thumbsup" yes the wheels are home made, I made them to replace the first one in the post. One wheel had a crack and these rims are the first I made, since then I updated slightly my dimensions so they in the trash.

Re: Alex's SuDu 2.2s.
 

Wheels and tires done.

I removed some material from my hubs on all 4.

http://imageshack.us/a/img33/1670/dscf7052x.jpg


So here's the weight

Front tires.
TAG Mach 12 3pcs wheels, 225 slw axial hub, shaved rover's and DD 5.0 soft

http://imageshack.us/a/img405/2290/dscf7060l.jpg

Rear tires.
Flipped TAG Mach 12 wheels, 225 slw losi hub, shaved rover's and sedona foam.

http://imageshack.us/a/img600/7830/dscf7059x.jpg


Lastly I added a cf braces to stiffen the chassis. I can't believe how much this simple mod can help

http://imageshack.us/a/img46/9798/dscf7053l.jpg

Re: Alex's SuDu 2.2s.
 

Excellent move with the chassis stiffener!"thumbsup"

That tranny is just awsome! Is there any room for the middle gear to move up and allow the motor to sit even closer to the tranny?

Re: Alex's SuDu 2.2s.
 

I was thinking about moving the motor but never got around to do it, now you got me thinking.

I'll play a bit with the cad and see if I can move stuff around and send the files to Pete.

Re: Alex's SuDu 2.2s.
 

That's interesting, but you are still using lexan side plates which are pretty wimpy. Once you change to a stiffer material like CF or aluminum, I wonder if the diagonal brace will still make a noticeable difference.

Not a feeler (:)), but do you or your buddies have plans to produce some of your nifty CF plates etc?

Re: Alex's SuDu 2.2s.
 

The braces is there for the polycarb chassis because it's def too flexy.

I know I'll switch to cf later but I'll like to try this one first and would like a flex-less chassis.

The light tranny component will be part of the TAG arsenal for the losi comunity "thumbsup". Not the front plate and the shark fin.

Re: Alex's SuDu 2.2s.
 

Well it seems that I have enough parts to build a set of scx10 shock. I think I'll put them on, they re mix and match shock but I'll have the little extra travel I'm looking for.

Re: Alex's SuDu 2.2s.
 

Rig looks Good. really like your thinking, a lot of really cool pieces.

Re: Alex's SuDu 2.2s.
 

Thanks man I really appreciate "thumbsup"














Got the v2 motor plate finished, thanks for the input Thommy!

http://imageshack.us/a/img194/7707/dscf7077k.jpg

As I mooved the idle gear bracket higher I decided to give the other skid a try.
It just feels better not having the motor hanging so much and the driveshafts don't bind so I think that's the way to go

http://imageshack.us/a/img811/4924/dscf7078k.jpg