Hello friends (imagine that in the smooth, relaxing tone of Jim Nantz for a better morning).
I have returned with a (possibly) not boring update after some more work.
Anyone remember this:
If only there was some way to both eliminate the slipper and the 2 speed in one part.
I quote myself, that is a thing I do because I'm very quotable.
How about this:
Have we caught on yet?
No? You are all so dense.
The answer is.....
I'll wait a minute for the slow readers to catch up. :roll:
Ta Da!
It's a RC4WD R4 transmission in all it's scale glory. In one shot, I get rid of the slipper, simplify to a single speed, and look cooler. Win, win, win.
If you notice the mounting brackets, they are from the RC4WD TF2 V8 mounting kit and R4 motor plate. I went lazy and bought mounts instead of making my own; I have no regrets.
Why a R4 over a GCM LRT2 you may wonder. Gear reduction my friend, gear reduction. After spending hours at the Adventure Series driving my TF2, I learned the truck handled everything much better in low gear. As it was, low gear provided about 60:1 reduction at the wheels which was probably a little too low but it was much better than the 22:1 of high gear. The LRT2's very cool attached transfer case provides some front overdrive but is still essentially a 1:1 ratio while the R4 uses the stock TF2 t-case for an additional 1.47 of gear reduction. A LRT2 could get me down to about 26:1 for overall gearing, not enough for my taste. The R4 can get much lower
Why a R4 over a single speed R3? Vanity, sheet vanity. Oh, and a single speed R3 is only good for about a 30:1 ratio in my truck.
The transmission isn't in the truck so this seems like a good time to toss in a better motor. The Integy 35T served it's purpose but, you know, Integy. I can do better. A nice Holmes Crawlmaster perhaps?
Wrong!
Now that is a real motor. You can find some good deals on the OG ROC412s now that the new version is out. Well, I found a good deal, I don't really care how much you pay for your motor. A not so minor reason that I chose the R4 motor plate over the V8 is the motor plate allows for some gearing adjustment. You can see a very tiny pinion on the motor, that is one of Robinson Racing's new hardened small 48P gears in 11T flavor. With that, I am able to drop the gearing down to a very respectable 35:1 overall ratio.
Soldering commenced. A Tekin RS Gen 2 was given a very spacious new home.
Fresh Holmes servo for much power to go right or left but not both at the same time.
Losing the 2 speed meant giving up a shift servo so I can now get away with a 4 channel radio. In went a Futaba receiver so I can use my 4PV.
I still need to get a winch controller back in there but that can come later. Turned out my winch controller was fine, it was the winch motor that was failing. I soldered in a spare one last night so it should be good as new. Yes, I have spare winch motors in my parts bin, I have a problem.
The t-case gets flipped around for nicer driveshaft clearance with the offset front axle. It will get bounced off rocks every now and then but it is tucked up there about as high as it was with the Bowhouse skid.
There you have it, phase 2 of the TF2 (or maybe I should call it "Phase TF2", I'm so clever) includes a scale driveline and brushless power. I hope to get out for some driving this weekend and get some impressions of the new setup.
So many possibilities of where to go from here but there is one definite and it rhymes with "pale fingine". There is no picture to go with that one so I'm sure no one will figure it out. The only guarantee I can make is it will come in a prompt and timely manner, like all my posts.