ice-nine

iTrader: (4)

Well, the only thing I see is that I REALLY DON'T LIKE THE ESC BEING UP SO HIGH. Think I'm going to contemplate cutting that top plate from the middle screws back, and chop that receiver box down. Hrmmm...

Edit: After further contemplation, I think what Wiseman 454 did really is ideal. Unfortunately, I don't have much in the way of extras to work with (just getting back started after 20 years), like the crawler servo mounts he used (any idea which one that is?). So I am trying to figure out a way to keep the inside part of the top plate (the part that crosses over to the battery box) intact, along with the inside wall of the receiver box, to keep as much of the rigidity of the original design as possible, and to use what I have.

What I don't like about this idea is that it brings the RX8's posts pretty close to the new inside edge of that aluminum plate when you drop it down. Electrical tape would work, I suppose. Laying the ESC with posts inside leaves about 5mm to the back of the motor. Is that enough? Any thoughts?

badassrevo

iTrader: (12)

Check out the factory team servo mounts for the Associated T/B4.

http://cgi.ebay.com/Associated-Facto...QQcmdZViewItem

Cain

iTrader: (294)

If you have someone who can cut you some carbon fiber, assuming you don't want to modify the stock top plate at first, you can make the plate over the servo mount pretty easy.

The stock servo mount pieces are actually pretty beefy, and from what I understand on the ofna forum about the mounting of the speedpassion ESC, you could have uses the stock mount positions for the servo assuming that you used a smaller ESC like an RX8 or MMM.

I'll will be giving this a look and see what I have to rig it up that way. But I would say compared to how high the ESC was on conversions that hung it over the rear center driveshaft, this is still lower.

here are some pics of what wiseman has now as the speedpassion ESC popped:

tschenck

iTrader: (110)

I like that. When my rx8 gets here I think I might try that. Other then the body, I am very happy with my hyper.

lovezyy

You will find it's difficult to use high kv motor on hyper 9. Because with 40t spur gear and T8 motor, you can not use small pinion. So is there any bigger spur gear can be use on the center diff??

Gary NJ

iTrader: (8)

No, anything larger than a 40T spur will come below the bottom of the chassis. Unlike other designs, the center diff can't be shimmed up.

With a motor the diameter of the T8, 13T will be the smallest pinion you can run - maybe a 12T if you do some grinding on the can. A 36mm motor will give a few more pinion options. I'm not sure how the front/rear diffs are geared on the H9/9E but truggy diff gearing (10/43 or 10/44) would definitely be a good thing.

lovezyy

Without any grinding with T8, the smallest pinion you can use is 16t(may be 15t). I just install T8 on my hyper9...... with 16t, you get the fdr 9.8

kufman

iTrader: (6)

Ouch! That is a pretty fast ratio! You would need to run a 1900 or slower motor on 4S for that ratio to work nicely. Could the entire drive line be raised to get motor spur clearance? Put a plate under the whole rear bulkhead and suspension assembly and center diff?

Cain

iTrader: (294)

I wonder if we can calculate how much space you can get away with.

I'll do a test fit of the Castle 2200 when I get the chance.

Gary NJ

iTrader: (8)

Hmm, not sure I understand why you can't get smaller than that. I'm guessing the diff outdrive cup at the front of the center diff against the motor can would be where the clearance runs out first. The cup should be 13m od, same as a 13T pinion. The Tekin can and the 40T spur should be the same diameter. With a little relief on the can, and maybe on the diff cup, I'd have thought you could sneak a 13T in there without much problem.

FG101C

iTrader: (34)

Gearing is 43/11. Why would the kit come with a 14 tooth pinion if it wont fit? I have'nt tried to fit a motor yet because I dont have it but was planning on a Medusa 36-60-1800 on 5s, geared 14/40. You could squeeze a taller spur on there, which one I don't know.

lovezyy

For a 36mm motor, it's ok. But if you want to use T8 like me, you will find it's difficult....

FG101C

iTrader: (34)

I see I did'nt realize the T 8 was that much bigger in diameter. Are they the size of a finned NEU or larger?

js058515

iTrader: (6)

Finned Nue is 44mm and T8 is 42mm diameter.

Cain

iTrader: (294)

went ahead and ordered the speedpassion 2200Kv setup to give a try in the Hyper 9E. If it works out, I may see about upgrading the truggy with a speed passion setup since I like how it comes with a programmer card, no laptop needed.