G2R race truck

[starscream]

I'm going racing today and I thought I'd post a quick update :017:
I've mounted the tmaxx3.3 revo spec tranny on my g2r. This tranny fits great and was actually easier to adapt than the original revo tranny. The only reason I went with this tranny was because of the ease of a center diff installation. This entire mod was done with just a dremel...
My center diff is installed with 50K fluid and I'm ready for the races. This setup uses a slightly modified stock drive shaft for the rear and the long g2r bone in the front. I haven't got my esc and dpm's back from FMA yet so I'll be racing the maxcim for now. :028:

Hey Daf, you'll see that I took your advice with the socks :dft012:

Here's some pics

[Serum]

Cool thing star!

What's up with the 3.3 case, that makes the diff fit in easier? is it larger at the output shaft?

[starscream]

I forgot to mention my dilema,
I have a 1/8th center diff for the Revo tranny but the revo tranny doesn't fit the g2r xbraces properly so I went with the tmaxx tranny and was working on a center diff solution for the tmaxx trans. Then Traxxas comes out with the 3.3 tranny, which uses at the same gears as the revo tranny, and they solved my problem. All I had to do is make the motor mount and adjust the rear shaft a bit. The motor mount actually works better on this tranny because I can utilize several of the diff case screw/mount points for motor mount stability. You can see in the first pic, I'm using black plastic spacers between the tranny mount and the motor plate. I messed up the one on the left so the spacer won't align properly. :031: Its not really even needed so I'll look at correcting it later. I also developed an easier method to mount a plate on the revo type cases. I'm not sure why I didn't think of this before.

Cheers

[MetalMan]

I'm not sure if you know about this, but Traxxas is making a diff for the Revo tranny!

[starscream]

Ya, and the revo center diff will be a direct fit with the tmaxx 3.3 tranny :027:
The revo center diff looks like a standard f/r diff with a modified 28t gear and longer output shafts. If I have problems with my 1/8 scale diff, I'll give the revo diff a try.

[Serum]

I've heard about that too Metalman.

Any idea when it's available Starscream? and it does only fit the 3.3 housing?

[starscream]

The Revo center diff should be available later this month. It will be a direct fit with the Revo tranny as well as the tmaxx 3.3 tranny. The diff doesn't look that big so it would fit in other housings but the output shafts are only so long and the 28t gear is a special design so moding a smaller/larger gear would be a challenge.

I raced my g2r today. I did well but didn't finish the A-Main because of major binding on the front right axle. I probably need to reduce the shims I used to reduce the binding. I was happy with the performance though. I'm going to take apart the tranny and check how the center diff is doing.

Next week, I should have my Lehner 1950 ready to race :017:

There was a large race ~40 miles north of me last weekend (at Peelit raceway) I was told that a brushless Revo raced against the nitro Revos.
The brushless Revo was not allowed to race with Lipo's so the driver used 14 cell 3800's. I thought this was quite petty and wondered how the nitro guys would like only being able to run with 15% nitro instead of 30%. I don't even run nihm's anymore so I guess I'll have to make sure I can run Lipo's before I waste my time going to events like those. I just think those guys are afraid of getting beat by an electric monster :005:

[Serum]

LOL.. Same old story..

How many lipo's are you going to use?

5S?

[starscream]

I am running 6s with the maxcim system and the 1950/9920. I would like to try 8s, with my 12XL, sometime soon. The test runs I made with the 1950 on 6s were quite impressive. I did notice that the 9920 got hot pretty quick (over 100 degree's in just a couple minutes) but the 1950 was still cool to the touch. I'm hoping that gearing the truck down a bit will lower the esc temps enough.