A new toy for me!
 

Check this out:

http://i113.photobucket.com/albums/n...r/DSCN1400.jpg
http://i113.photobucket.com/albums/n...r/DSCN1399.jpg
http://i113.photobucket.com/albums/n...r/DSCN1398.jpg
http://i113.photobucket.com/albums/n...r/DSCN1397.jpg

Woot, woot!

Boua! boua! I would hope to see a Baja SS:rofl:

^5 High 5 Linc!

Hey that looks just like what the UPS guy brought me! :yes:

not so fast guys, I have one on the way!!
phil

The 5b ss kit is not far behind! I really need to thin out my collection.

thats nice man.

so how long befor it goes brushless?

Looks good, cant wait for my new E :)

Linc,
How is the bulk chassis junction? It was supposed to have been strengthened. What does it look like?

I have left the truck at work, but the chassis has a ton of extra webbing where it attaches to the bulks. I will have a good look at it tomorrow and get back to you.

looks good, my lhs said they should have them on monday.

It really looks to me like this chassis would hook right up to an older E maxx front and rear.

I haven't tried it yet, so there might be something different.

http://i160.photobucket.com/albums/t...m/DSC06710.jpg
http://i160.photobucket.com/albums/t...m/DSC06709.jpg

Nice man! Not that Im worried anymore since I love my new Gmaxx motor mount (old version), but can you get some measurements of the tranny mounts- I wonder how different the mounting pattern is. By all accounts though, the chassis and braces should bolt up perfectly to an older style Emaxx, as should the steering mech (so long as its 3.3spec).

Hey Linc,

I'm Brain Storming again. LOL

Correct me if I'm wrong, but since the new E maxx has a Revo Style Slipper, won't the Revo Mod 1 Spur fit this?

Let's go with the 40 tooth Mod 1 Revo Spur. I notice Mike has those in stock. While we're ordering, let's get us a 25 tooth Mod 1 Pinion gear and maybe a 20 tooth Mod 1 as well.

Then let's turn to AXI for a 2826/10 Outrunner motor. The motor shaft length is exactly 20mm! Perfect for this. Let's get a motor cooling fan too.

I know this is a bigger heavier truck than the Redcat but now we've got gears AND a good slipper. :yes:

Here's some gear figures that I put together.

Stock E maxx

68 tooth spur 19 tooth motor pinion 3.58:1 gear ratio

If the motor spins 20,000rpm, the tranny input shaft is spinning 5587rpm

Revo

AXI 2826/10 GOLD LINE 920kv 3-5 Lipoly current capacity=42amps/60s

40 tooth Mod 1 spur 25 tooth pinion 1.6:1 gear ratio

4S Lipo = 14 volts under a load 12,600rpm @ 900kv

7875 input shaft rpm with a 25 tooth pinion.

6300 input shaft rpm with a 20 tooth pinion

I'm really tempted to try this setup. :yes:

I wonder what the gear ratio is inside the tranny from input shaft to output shaft?

I'm thinking gearing it high like this will be best because the outrunner will make so much more torque than both the Titans. Then add the 2 speed kit to the equation. We've got Gears! :party::yes:

What do you think Linc?

Revo spurs will fit, not sure if the tranny has enough clearance for the out runner with the 20t pinion, so i stuck with the 25 for my number crunching.

Ok, intelligent guess says that the internal ratio is 33/18, or 1.83:1. All guesses referenced from the new emaxx parts list on the traxxas website, hope it is correct.

This appears to be slightly lower than the old emaxx second gear. That coupled with the use of 14 cells would account for the higher speed while still using the same diff ratio, tire height and motor kv.

Traxxas is smart, they reused the idler gear, still 20t but steel now. Good cheap way to up grade an old emaxx tranny!

Motor kv on the titans must be arround 2200, yeilding 35mph on 14 cells. This sounds too high, as most belive the motors to run around 20k rpm on 14.4, which would be 1400kv or so. Heres the speed calc for the stock setup, my best guess on motor kv:

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 19
Total Voltage: 16.8
Motor KV: 2200
Tire Diameter (inches): 5.75
Spur/Pinion Ratio: 3.58 : 1
Total Ratio: 18.64081 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 36960 RPM
Vehicle Speed: 33.92 MPH (54.48km/h)

Now here is your proposed setup with the 25t pinion:

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 40
Pinion Tooth Count: 25
Total Voltage: 14.8
Motor KV: 900
Tire Diameter (inches): 5.75
Spur/Pinion Ratio: 1.6 : 1
Total Ratio: 8.33354 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 13320 RPM
Vehicle Speed: 27.34 MPH (43.92km/h)

Looks to be a bit slow on 4s with that combo, but most likely not too far from stock. Would be better on 6s, at least for me.

Give it a try Sike, and let me know what you think. My math may be wrong, but I checked it a few times?!

If the Mesh will line up right, we could use a 36 tooth spur instead.

The would give a 1.44 ratio instead of a 1.6

This outrunner will make about 900 watts, so I'm thinking the acceleration should be there.

Another option would be to go with the 2826/8 motor. It's a higher kv at 1130kv.

The mod 1 gears are alot tougher than the 32 pitch gears aren't they?

Put those two setups on equal voltages please. :whistle:

Mod1 is quite a bit stronger, the 36 tooth would help. I only had the voltage set on 14 cells to try and figure out the titans kv. Traxxas claims 35 mph so I figured I would run the numbers. $s will actually hold its voltage arounf the 14.8 mark unless the lipos are crappy! Are you set on 4s or could you go higher, 6s would be killer and allow you to gear down some, which seems to help regardless of the motor type.

Not sure if you noticed, but the chassis braces are set wider on the new emaxx than the old one. Maybe a direct to diff setup would fit? An idea?!

I plan on using the Quark, so 6S is an option. Motor temps are going to determine if 5S or 6S will be the "settling" point.

Here's the 2826/8 wind on 4S with a 36 tooth spur
Differential Ratio: 2.84
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 36
Pinion Tooth Count: 25
Total Voltage: 14.8
Motor KV: 1130
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 1.44 : 1
Total Ratio: 7.48397 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 16724 RPM
Vehicle Speed: 38.23 MPH (61.4km/h)
Effective Speed Rate: 2.58mph/V (4.15kmh/V)
Effective KV Value: 1130

Here's the 2826/10 on 6S with the 40 tooth spur
Differential Ratio: 2.84
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 40
Pinion Tooth Count: 25
Total Voltage: 22.2
Motor KV: 920
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 1.6 : 1
Total Ratio: 8.31552 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 20424 RPM
Vehicle Speed: 42.02 MPH (67.49km/h)
Effective Speed Rate: 1.89mph/V (3.04kmh/V)
Effective KV Value: 920

I think it would kick Arse! :yes:

Sounds like a good setup, either way. My Emaxx will stay stock until I can finish the other conversions I have sitting around. Going to convert a Losi aftershock and use an 1100kv kb45 inrunner on 9s lipo thru a hv85 esc. Stock tranny and 2 speed so it should be plenty fast!

My bank account is so envious of you unmarried guys. I can't wait to see what type of monster you turn the new ride into!

see if the transmission will fit on the old version

YES.. it's plenty fast.. I'm running the 1000KV on 12S 3700mAh Lipos on my LST...... and it's super duper fast... but snow is melting fast.... I will get videos on a nice day...

8S1P 5000mAh 25C Lipo & 1800kV KB45 on MGT, and 8S1P 5000mAh 25C Lipo & 1000kv KB45 on GST 7.7...

Those KB45 are just great motors for the price... just gettin' the pinions sucks monkey butt... but thank God I got myself a lathe...

Good to know aqwut, any chance you could shoot a few pics of your lst so that I can see how you did it? Also what esc are you using in the lst and your 15l powered t maxx?

OH, and I am married guys, just buy what I want anyway. I made sure that the wife knew that about me before we got married.

++1:rules:

i would like one in my g3r as well , come on , does it fit??

I hope you mean 6S A123 or NIMH cells? the quark isn't capable of 6S. I need to come across the first who uses 6S lipo packs in his truck with the Quark without killing it.

Will you put a BL system in it? This may work: Motor ESC 30 of them :mdr:

An E-Baja 5b SS is my absolute dream project :oh:

The new style Transmission mounts different. It mounts to the underside of the chassis instead of going through the frame rails. 4 Bolts is all it has compared to 8 mounting bolts with the old style.

If you want to upgrade an older maxx, get the Chassis and the frame rails to go with the transmission.

I have ran 6S Lipo through my Quark 80 probably 8 or 10 times. I did notice improvement running 6S after doing the Cap mods.

In the E Revo, the new Quark 125 amp ESC did pretty good on 6S. I added one of the Novak Caps to it's power lead. Temps weren't bad at all and it was hauling Arse! :lol:

I wonder if the Quarks that died were from lack of additional heat sink? Or perhaps FET/heat sink separation that's been discussed in earlier threads?

Got pics? I wonder if the width of the new mounting points is okay, and it just requires 4 new holes drilled onto the chassis (mount it ontop, rather than underslung).....

Ok Neil, here ya go partner.

Check out the pics. You can see the 4 tranny mount bolt there on the underside of the chassis. Bolts are 41mm x 52mm center to center.
http://i160.photobucket.com/albums/t...m/DSC06723.jpg

http://i160.photobucket.com/albums/t...m/DSC06726.jpg
http://i160.photobucket.com/albums/t...m/DSC06725.jpg

I use mine on 6s every once in a while and it works perfect so far. I usually keep the gearing the same as when it's on 5s, but it doesn't get much warmer. No caps, no internal mod, just the rcm heatsink with a 40mm novak fan.

I cant wait till I can buy one of those trannys on ebay

Cheers Sike! I will go see how that compare to my old tranny and its mounting pattern/measurements....

**5 minutes later**

.... oh crap, not even close! The new tranny is 41mm by 52mm you said, but the old tranny bolt pattern in 54mm wide by 34mm long (outter most mounting bolts). Thankfully since the new tranny is narrower, it will still fit where the old one goes, but being longer as it were, will require a rather clever mounting adaptor- time to get designing me thinks, then I can sell it to the noobs on the traxxas forum, ha ha ha!....

What I wanna know is, How is the 2 speed kit going to work on this Transmission?

The Radio that came with this does NOT have the additional channel for shifting.

However, there is a small knock out window in the chassis that appears to be where the shifting servo goes.

There is also a blockout plate on the transmission that appears to be for a sensor like the Revo has.

Could this setup automatically shift to 2nd gear based on RPM?

THAT would be cool! :yes:

how about this setup in a revo with the new e-maxx tranny?
 

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.83
Other Ratio: 1
Spur Tooth Count: 38
Pinion Tooth Count: 14
Total Voltage: 22.2
Motor KV: 1700
Tire Diameter (inches): 4.5
Tire Ballooning (inches): .5
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 2.71 : 1
Total Ratio: 14.13725 : 1
Tire Circumference (inches): 17.28 inches (438.88mm)
Total Motor Speed: 37740 RPM
Vehicle Speed: 43.68 MPH (70.17km/h)
Effective Speed Rate: 1.97mph/V (3.16kmh/V)
Effective KV Value: 1700
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...

the tires would be panther komodo's

You may have clearance issues with the motor and tranny with the small spur and pinion.

And auto shiting sensor based servo actuated shifter would be cool, would allow forward and reverse from the electric motor without needing a one way bearing. The complete 2 speed kit is listed for the emaxx at $55 IIRC. Plus it has different ratio gear options like the revo and tmaxx.

Is there a website that has pictures and details about that?

Tower hasn't posted any details yet

Look at the parts list, middle of 3rd page under transmission #3998"
http://www.traxxas.com/products/elec...905-071218.pdf

also:
http://www3.towerhobbies.com/cgi-bin...?&I=LXTKP9&P=7

OK, correct me if I'm wrong here.

It looks like to me this will be the gearing options.

Existing gears inside the transmission are 33/18 or 1.83:1

The close ratio set is 21/18 or 1.16:1 Which is a much higher 2nd gear.

The wide ratio set is 26/13 or 2:1 Which is a slightly lower 1st gear.