Possible Hyper 7/Novak conversion

[lincpimp]

So I got everything together and gave it a test run. Went well with the 13/46 gearing, plenty of power and the motor and esc got warm, but not hot. I would guess that it is running near or over 40mph.

Now for the bad part, I snapped the shaft, right where it is turned down to 1/8". That sucks.

However, I had my machinist friend take a look at it and he seemed to think that it could be fixed. So he gave me a section of steel bar that is slightly larger than 5mm. I will clamp that and the shaft into a v block and weld them back together. And then he will turn it back down to 5mm. I know that the hacker motor shafts are made of some really hard steel, hardened all the way thru. So hopefully my miller mig welder can weld the two materials together well.

I will take some pics tomorrow of the shaft before and after welding!

So I had a c50 L can motor laying around that I got cheap, due to the previous owner not knowing what wind it is. Threw it in the hyper with the mm and 4s worth of trakpower lipos. Tried a 14t pinion first. Wow, really fast, like 50mph! But it thernmalled the mm. So I stepped down to a 12t pinion, smallest that I can fit without modding the motor mount. Much better, plus I added a fan to the mm. Temps after 20min were 150 on the motor, 130 on the esc, and about 110 on the lipos.

This motor must be a 8l, so rpm is around 45k. Incredible power, especially from half throttle and up, usually when the slower turning motors are running out of power/torque. This motor just seems to build power the faster it spins. The temps suprised me, as I expected to cook something!

I will mod the motor mount so that I can fit a 10t pinion. That will be as small as I can go before the motor can hits the rear center driveshaft. I think an 11t pinion will be perfect for this combo, but want to be able to fit a 10 too.

The hyper really handles well, especially considering the weight.

I will post some pics of the current setup. I still need to move the servo so that the linkages are parallel, and make a cf servo plate.

Speaking of the servo, I am running a MG995 servo that cost $22 a pair! Great performance on 6v from the ubec, I would recommend this servo! For 11 bucks you cannot go wrong. Just as good as my hitec 645 and digital 5245.

[ssspconcepts]

Man....such a sweet looking rig. It does suck that the shaft broke.

[lincpimp]

Originally Posted by ssspconcepts

Man....such a sweet looking rig. It does suck that the shaft broke.

Thanks, I tried to do a nice job on this buggy!

I will have the shaft welded up tomorrow and all should be ok when he turns is back to 5mm. Plus with the 5mm shaft it should not do this again! Hopefully!

I can't wait until Mike starts selling the diffs with the integrated slipper, that wil realy take some stress off the motor shaft!

[lincpimp]

Somewhat of an update. The lhs finally has my pinions, so I will pick them up tomorrow. I will have to mod the motor mount to get the motor closer to the center so that the mesh will be good.

Otherwise everything else seems to be working fine. I ran a full pack thru it and it was ridiculous, a bit too fast for my bashing area. Got decent runtime and the temps were ok, would like to see them slightly lower, so the 11t pinion will most likely be the best bet.

I also picked up another hyper 7, this one has the pivot ball front suspension. It also has the complete rcproducts design kit, with the trays, motor mount, etc. I have a 8xl and a mtroniks truck esc to try out in it. That may be for sale soon, how knows.

I will post pics and info when I get everything back together, hope I have time tomorrow.

[pipeous]

The RCP conversion for the Hyper is actually very nice. I like the balance of saddle packs and if you wanted to get crazy you have room to dump some big lipos in. I like the way you flipped the motor, that makes sense. if you can't scare up any dif gaskets, drop me a line. I could toss some in an envelope. I am sure I have a few kicking around. what's a buck for an envelope... Weight is not always a bad thing, especially when you make contact with another buggy hehe

I picked up an Xray, and a Jammin tonight to play with next. I won't count the Ofna Ultra in the box, it's a tank that will be sold as a parts car to someone lol.

Those are some sweet lookin' battery trays and your conversion is very clean, lincpimp. I also converted a Hyper 7; check mine out.

[xcntrk]

Subscribe: I too have a Hyper-7 to convert! Watching this build closely. Still looking for finished pics showing your servo configuration. Why wouldn’t the stock servo plate work again? Do the RCP trays interfere with the stock mounting?

[lincpimp]

Originally Posted by flipmac

Those are some sweet lookin' battery trays and your conversion is very clean, lincpimp. I also converted a Hyper 7; check mine out.

Looks good, nice conversion!

Originally Posted by xcntrk

Subscribe: I too have a Hyper-7 to convert! Watching this build closely. Still looking for finished pics showing your servo configuration. Why wouldn’t the stock servo plate work again? Do the RCP trays interfere with the stock mounting?

The RCP trays take up 1 hole that the stock standoff mounts to. Look at the pic on the rcp site and you will see what the servo mount needs to look like.

[lincpimp]

Ok, snagged a pinion for this project to gear it down a bit. Only dropping 1 tooth, but that should be perfect. I will have to remove the mount, and make the slots slightly longer so that I can ge the smaller pinion to mesh correctly.