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-   -   Revo 22.2v (https://www.rc-monster.com/forum/showthread.php?t=6847)

Eccentric 05.19.2007 10:47 PM

Revo 22.2v
 
Well it's not really High Voltage so I can't call it Revo HV so I'm calling it Revo 22.2

I started with a new truck (didn't own a Revo).
RC-Monster Revo motor mount
12XL motor
CC 110HV ESC w/ PiStix adapter
UBEC for power
EVO-20 battery (great deal at 40% off)
Steering HiTec HS-5955TG
Still has 2-speed w/ reverse and mechanical brake. Using 3rd channel for the reverse servo and a y-split to do the brakes and ESC.
It's still very light on it's feet but it's a porker now at 12.06lbs.

I had an idea of the direction I wanted to go with the truck and what parts to get. Based on the advice given here and else where on the net. I didn't plan on buying it all at once but most of it went on clearance the day I was going to make an order so I got all the parts I wanted. A few things are left out of the picture and the Vantage chassis and center diff/rear brake are for a waterproof Revo I'm planning. And you guys are right 23mm Proline adapters are less then impressive.
http://i118.photobucket.com/albums/o...s/IMG_0888.jpg
http://i118.photobucket.com/albums/o...s/IMG_0924.jpg

This is how the truck looked during the test fitting. There is not much clearance between the body and the ESC which worried me. But after running it is going to be fine till the cage comes.
http://i118.photobucket.com/albums/o...s/IMG_0933.jpg
http://i118.photobucket.com/albums/o...s/IMG_0932.jpg

After a couple runs still going running great, only minor things, popped a ball out of the RPM carries (?) and had the set screw come loose on the pinion. The ESC is just warm and the motor isn't much more.
http://i118.photobucket.com/albums/o...s/IMG_0937.jpg

I planned on using Husky straps but couldn't find them so I used zip-ties. I have them now and will put them on this week.
http://i118.photobucket.com/albums/o...s/IMG_0940.jpg

This rat's nest is temporary till more parts come.
http://i118.photobucket.com/albums/o...s/IMG_0942.jpg

I made the battery box out of some.220" (5.588mm) polycarbonate that I had. It doesn't form as easy as I thought it would but it came out alright.
http://i118.photobucket.com/albums/o...s/IMG_0944.jpg

The body fits other then the filler opening.
http://i118.photobucket.com/albums/o...s/IMG_0953.jpg

BrianG 05.19.2007 10:51 PM

Nice! I would cut the body out so the ESC is open. That way, the body won't hit it if you land on the lid.

Eccentric 05.19.2007 10:53 PM

Quote:

Originally Posted by BrianG
Nice! I would cut the body out so the ESC is open. That way, the body won't hit it if you land on the lid.

Good idea. I'll do that first thing tomorrow.

supralover72 05.19.2007 10:54 PM

WOW, lol.

BlackedOutREVO 05.20.2007 12:51 AM

DAMN!!!!!

i love that cc hv in there!! makes me what to copy what u did with a lmt or neu lol

VERY nice work man!

MetalMan 05.20.2007 01:25 AM

I'm curious if you could provide feedback on the HV110 + PiStix adapter, interms of controllability, smoothness, or whatever you can comment on.

Great conversion!

jnev 05.20.2007 02:29 AM

Sweet job on the conversion. Really clean lay out. I was also going to ask how you are linking the HV110... also, what is a "PiStix adapter"?

Thanks

cemetery gates 05.20.2007 10:15 AM

Very cool! How much runtime do you get with the 12xl?

Bye:018:

BrianG 05.20.2007 12:24 PM

Quote:

Originally Posted by ***RC***
also, what is a "PiStix adapter"?

It's a little device that goes inline of the throttle cable that lets you use pistol-grip transmitters with ESCs normally designed for airplane use.

Serum 05.20.2007 12:29 PM

That will be an insane setup! nice!

Dafni 05.20.2007 12:32 PM

What Serum said! True!
I tried a 1950/12 on 6S once, insane.

Eccentric 05.20.2007 01:28 PM

Quote:

Originally Posted by MetalMan
I'm curious if you could provide feedback on the HV110 + PiStix adapter, interms of controllability, smoothness, or whatever you can comment on.

Great conversion!

It works great. There is a slight dead area when you first start pulling the trigger. I adjusted it out then adjusted the brake. It starts up well better then I thought it would. No cogging or shaking just starts and is smooth up to WOT.

The current issue I have is it seem to be getting a slight pause which at first I thought was it shifting but it's not. I'm not ready to blam the PiStix or CC110HV for that yet. I think it might just be my antenna which I have tucked on the side.

I'm also sad that I can't wheelie on demand like many of you guys. It think between the slow motor, 1st gear and 15/40 it's a crawler till it hits second. It just squats and goes and does quickly but no big wheelies. But I guess fast and controllable is better.

We don't have radar yet and I haven't timed a measured run. So top speed is unknown but it's in the high 30s with this gearing. The motor says cool (relative) so I could gear it more but I like it.
Quote:

Originally Posted by ***RC***
Sweet job on the conversion. Really clean lay out. I was also going to ask how you are linking the HV110... also, what is a "PiStix adapter"?

Thanks

I am pleased with the HV110. I'm not ready to say this is the best setup in the world and everyone should do it. But it works well. As BrianG said it's and inline converter that changes the pistol radio signal to stick radio.
http://www.rc-hydros.com/pistix.html


Quote:

Originally Posted by cemetery gates
Very cool! How much runtime do you get with the 12xl?

Bye:018:

Very good. 25mins easy under bashing type driving. I had it at work this week. First break is 20mins and my boss (cool guy) came out to watch and we made it a 30min break. All I was doing nothing but high speed runs and just general showing off for 25mins. It still had power when we stopped.

canadianrcist 05.20.2007 02:19 PM

nice build, i like how mike has motor mounts for the revo, not more ghetto doing it your self.

BrianG 05.20.2007 02:53 PM

I am surprised that you can't wheelie on demand. Are you sure the slipper is set tight enung? That thing should be able to just about flip over from the torque. I was running a 10XL on 14 cells and it would easily flip if I wasn't careful - and that's with the ESC set to soft start power! I know you are using the extended chassis, and that should definitely make it harder to do, but I still think it should wheelie like mad!

I re-read your first post again and see that you had a problem with the pillow balls popping out. I had that issue with the stock carriers, but not once I put the RPM ones on. Do the balls have any play? They should not have any in/out play, but not bind either. The pillowball adjustment may loosen over time too, so you might want to check that.

Serum 05.20.2007 03:25 PM

Mike also has got integy knuckles, which also use a larger outer bearing.

My guess is that if the slipper is tight, the controllers starting power can be set a bit more aggressive. (if you like wheelies)

Finnster 05.20.2007 03:29 PM

This is a similar setup to what I've been working on, altho I'm waiting on the MMM or R1MT and going to try 6S and maybe ~12XL. Tho I have been contemplating going to a Neu, perhaps the 1512 1700kv.

I've been working on my conv quite a bit lately and its been coming along. Nice to see your turned out so well. What about temps?

starscream 05.20.2007 04:18 PM

Nice conversion,
I would recommend some angled aluminum to protect that Lipo pack. It's quite an investment and would be a shame if one accident took out the entire 6S.

I experienced the same low end power issue with my HV110. By default, the HV is setup for soft start. I set mine to 100% and that fixed the low end power loss but I now have a little issue where the throttle seems to get stuck, just a touch, once I start out. This issue is tolerable for now as appying the brakes stops the vehicle but its not ideal. Just like everyone else, I'm hoping the MMM will be available soon.

Eccentric 05.20.2007 05:40 PM

Quote:

Originally Posted by Finnster
Nice to see your turned out so well. What about temps?

I'm glad it's working well too. I'm new to the RC world believe it or not. So don't have a temp gun yet. I thought a nitro buddy of mine was going to stop by today but he hasn't shown yet. I was going to use his. I do have one coming.

Quote:

Originally Posted by BrianG
I am surprised that you can't wheelie on demand. Are you sure the slipper is set tight enung? That thing should be able to just about flip over from the torque. I was running a 10XL on 14 cells and it would easily flip if I wasn't careful - and that's with the ESC set to soft start power! I know you are using the extended chassis, and that should definitely make it harder to do, but I still think it should wheelie like mad!

I re-read your first post again and see that you had a problem with the pillow balls popping out. I had that issue with the stock carriers, but not once I put the RPM ones on. Do the balls have any play? They should not have any in/out play, but not bind either. The pillowball adjustment may loosen over time too, so you might want to check that.

It might be the slipper I could check it. It's charging right now and I'm taking a food break. I'll adjust it and take it out again.

I have 7 packs though it today 3 yesterday and 2 the a couple days before. So a total of 12 (12 x 25min = 5hrs total). It wasn't just it popped out I have a sizable jump and landed bad the wheel is bent too. They also had Dry Ice on them so the might have been a bit slipper then normal. And who knows I could have had that one loose. Most of this build took place between 1:00am-3:00am. So I might not have been awake.

Quote:

Originally Posted by starscream
Nice conversion,
I would recommend some angled aluminum to protect that Lipo pack. It's quite an investment and would be a shame if one accident took out the entire 6S.

I experienced the same low end power issue with my HV110. By default, the HV is setup for soft start. I set mine to 100% and that fixed the low end power loss but I now have a little issue where the throttle seems to get stuck, just a touch, once I start out. This issue is tolerable for now as appying the brakes stops the vehicle but its not ideal. Just like everyone else, I'm hoping the MMM will be available soon.

Where do you think I need it. It's hard to see the box in the pictures because it's clear. The box covers the bottom, outer side, and front. It was originally made to cover all sides except the top. But it didn't fit well so i cut off the 2 sides and trimmed it to fit in tight to the chassis. The poly under the ESC and the UBEC are the sides I removed. It also has a thin foam pad that is on the bottom and inner side to take some of the initial shock.

I like li-po and it doesn't really scare me but I still treat it with respect. I do plan on trying some A123s with my next Revo. So it's one less thing to worry about. Plus as I mentioned it's getting and RC-Solutions cage soon. Which from the pictures I've seen will need to be modified on that side. So I might add some extra support to the box using the cage as a mount.

So you think the low end power is the soft-start setting? I'll try the slipper first then I might try a different setting.

Thanks guys.

gasshead 05.21.2007 06:51 PM

nice setup. i wil probly run my ESC in the exat same location as yours. but i am just waitin on the MMM. i hope its soon, my project is ready to be done

Procharged5.0 05.21.2007 07:01 PM

Nice project! Any speed runs yet???? I'm curious how fast it will run!

Eccentric 05.24.2007 11:33 AM

Well I can wheelie on demand now but it seems to be a bit too much. The stock axles can't take it with the new weight of the truck and the power pushing it.
http://i118.photobucket.com/albums/o...s/IMG_0955.jpg
http://i118.photobucket.com/albums/o...s/IMG_0956.jpg
http://i118.photobucket.com/albums/o...s/IMG_0957.jpg

BlackedOutREVO 05.24.2007 11:38 AM

DAAAAAAAAAAAAAAAAMN!!!

i havent even really seen them twisted like that! WOW man!

Procharged5.0 05.24.2007 11:39 AM

What are you going to upgrade to?

Eccentric 05.24.2007 11:49 AM

Quote:

Originally Posted by E-MAXX Rock's
DAAAAAAAAAAAAAAAAMN!!!

i havent even really seen them twisted like that! WOW man!

It was my first time on pavement with it tuned. I also lost second gear and reverse doesn't seem to work any more. I haven't had time to look into that yet. We still don't know how fast but it's hitting high 40s but I have to brake to stop before I run out of parking lot.

Quote:

Originally Posted by Procharged5.0
What are you going to upgrade to?

I have some MIPs sitting here. I put them on the front but not on the rear yet. I didn't think I was really going to need them. They just came in a deal from a friend. I would like to try the new Traxxas axles.

Procharged5.0 05.24.2007 11:58 AM

The new traxxas CVD's look nice. If you do buy them let us know how you like them!

Eccentric 05.24.2007 01:16 PM

I will let you guys know about the Traxxas axles when I get them. I swapped new axles and tried the truck. I have no reverse and second doesn't engage all the time. So I'm not going to run it for a couple days till I can open it up. I might have to put the forward only kit on and lock it into second. The tape also came loose inside the rear tires.

The bright side I inspired a couple guys at work to get theirs out and work on them again.

Sower 05.24.2007 01:49 PM

Very nice. I came so close to going this route with my e-CRT, but ended up going MM. Nice to see you pulled it off and it's running well. Nice work!

Eccentric 06.09.2007 11:38 PM

Quote:

Originally Posted by Finnster
I've been working on my conv quite a bit lately and its been coming along. Nice to see your turned out so well. What about temps?

Well I had a day that I had both time and weather to run the truck and take temp readings.

It was low 70s today. Readings were taken during mid run and after the runs. The reported high is the MAX reading rounded up. The reported low is about the average temp over the whole area. These readings are all off-road runs on either the small track I built the driveway and front/side yard. "VERY Tall grass" readings are from un-mowed lawn length to can't see the truck and high enough to high center it tall.

The front of the motor seems to hold more heat and was where I was reading the MAX. I didn't bother recording the motor heat sink temp the case temp what's important. The battery temp is only approx because of the readings are taken though shrink wrap. And can only read the top 2 cells. I was also taking the temp of the slipper and front brake disk but didn't really record them.

Regular running/high speeds on 500' stretch
Motor (on case not heat sink) - 150-163° F
ESC (on heat sink) - 105-110° F
Battery ~95° F
Slipper - MAX 122° F
Front disc brake - MAX 110° F

Slow speeds/run ups for jumping
Motor (on case not heat sink) - 140-155° F
ESC (on heat sink) - 100-105° F
Battery ~85-90° F
Slipper - NONE
Front disc brake - NONE

VERY Tall grass/abuse run
Motor (on case not heat sink) - 165-188° F
ESC (on heat sink) - 120-126° F
Battery ~105-110° F
Slipper - MAX 132° F
Front disc brake - NONE

I have also made a few changes to the truck. Steering is now where is should be (I had more right then left?). The rear springs are now 33.7 lb/in fronts are 20.0 lb/in. The battery box is now mounted under the the AL tabs which both lowers the battery and helps to support the box during bad landings. I also took an idea from here to use a Home Depot Husky Hangalls strap for the battery. It works great and is cheap. But hard to find I had to order them off the website. After the 2 stores by me didn't have them. Add few more Ti things I had but hadn't put on.

Still a mess but a little lighter and getting better every day. Tomorrow I lock it into second gear and put the rear brake on.
http://i118.photobucket.com/albums/o...s/IMG_0999.jpg


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