E-revo top speed record 91.2mph *vid*
 

Hi guys,

Some of you may remember me asking some questions about setup for brushless....

Me and my bashing buddy are always doing speed runs with our RC, and after a couple of speed runs test, trying setup etc..

We were able to get 91.2mph, we are still working on it.

Heres the video:

http://www.youtube.com/watch?v=xP17Bg40cso

I tought some of you would like to see the vid. :)

We used a MMM esc V3 , Neu 1515 1.5d on 6S.


:)

Thx for watching!

Nice one - The bushnell though is much more accurate that the garmin - You get alot of interpolation errors with a GPS over that distance

I was way too far from the "line" of the revo to get an accurate reading, it go way too fast now, too dangerous.


I have like 10 pass on video where we can see the GPS and radar show the same when wew were getting in the high 75mph, when we improved the setup i no longer waited in middle of the road with the radar lol

And i lost signal fast with the radar when the revo is still accelerating, when the revo pass in front of me my friend is at 3/4 throttle to give an idea...

:)

fake

You're just jealous your chair cant go that fast! :rofl:

Awesome work dudes, 100mph cant be too far way now.

nice videos, its good to see someone backing up radar with gps

Thx !

Paralyzed, you can go see my video of the mini revo 1/16 at 66mph, you can see the radar vs GPS... if that can help.

Other than that, i can only suggest you to come here and see by yourself,



:smile:

^^ Have to agree, just doesn't look right.

Take it to the Speed trial in November. Then I'll believe it.

I've followed every post in the ongoing 25 page thread over at TRX(still its a good thread) and I believe it. Again congrats!

Thx :)

I can understand some of you would not believe, i wouldnt had about a 2 months ago,

what make you think it is not right, just explain yourself.

:smile:

Looks fast as hell to me. Congrats one way or the other. You ever hook up an ET to that?

The trick with the radar is to point it where the revo will be going the fastest, and keep it very steady. I have the same unit and have used it radar all kinda of stuff. For 80 bucks it is a great deal. Nice to see you have backup with the gps. The revo looks well setup, and I would say it is doing what the gps and radar say. I have run some fast rcs and it seems in line with them. I would like to see it in person, a 1.5d on 6s is cranking out some power. I ran my 1.5d on 4s and it would easily get my revo over 60... My tires were getting a bit out of hand at that speed (taped and balanced badlands on beadlocks).

Seeing stuff like this makes me want to get back into speed runs again...

I dont have access to a speed trap, best thing i can do is bring the GPS in my real car and compare the speed in a video.

I can try to have a better reading on the radar but it is very dangerous.

Heres a previous video when we crashed it, it was still accelerating, but loosed control.
The radar update speed faster than the GPS as some may know, we got 84mph on the radar and 81.9mph on GPS.


(from 5 minutes 30)
http://www.youtube.com/watch?v=-i0ludmC4fA

Thank you sir!,
I thought adding the GPS would be enought ... :mdr:

The radar was just out of range, and i was like 15 feet away from its line"
you own that radar so you know it greatly affect the speed reading, i was just gunnin at it for fun, i knew it wouldnt read right, i should have just not use it..... seem to create lot of confusion lol

I will try to put the radar on side of the road on a packge box so it wont damage too much if something happen.

Vassmar used the radar in the box trick on his TC4 runs

After using the same 1.5/MMM/6S combo in my Rustler I have little doubt 90mph is very plausible - even for a Revo! There's always going to be questions raised unless you use an optic speed trap. The ROSSA event in the UK would be an excellent opportunity to "officiate" the speed

Over_revo, it's always very nice watching your speed runs...wish I had road like that!!

Yeah, but it is a little too expensive for me to go there to prove some people it is right....


nobody complaint about vassmar 135 tc4, or 84mph 20 pound XTM MMT of Jzemax...
i will do one last thing to make sure speed is right, will see if i can make a video tomorow.

Thx for the comment! apprecieted. :smile:

I believe it. Nice job man! :yes:

Thx! :smile:

Don't listen to the doubters, if intelligent RC people work out the calculations, it's possible. The questions should be why it couldn't have happened...if that makes sense? ROSSA record & recognise "unofficial" speeds using that method, the ISC seem to think the same way. My main concern about a Revo would be wheel/tyre combo and you've done the work to keep those HPI's together...all looks good to me

1/8 (sorry Revo's can't be called 1/10 IMO) & 1/5 cars look slower than 1/10 at those speeds, it's also hard to show those speeds when zooming the camera to follow the car. Leave the focus fixed & things look very quick!!

I will say when you are next to a big rc going at 60+ speeds there is no doubt it is moving! Even my little 10th scale tc speed car looks and sounds like a jet when it is beating 70.

i'm just messin wit ya, congrats!:yes:

"don't have access to a speed trap"- all you need is a tape measure and stop watch to get exact numbers.

get triple digits :whistle:

Thx guys,

I always thought it would be hard to show the speed trap that way on a video, because of the FPS of cameras...

If the wather is good tomorow we will go do another test, but using the Castle 2200kv, my friend wanted to see its potential before going back to the Neu 1515 1.5d, we got
88 mph using the same setup as the 1515 1.5d...

What gearing are you running with the 1.5d? I was using a 19t pinion with a 50t spur on mine with 4s. That seemed to be the sweet spot for 40min runtimes with good temps. I am sure you guys are not really worried about temps, a couple of blasts down the street and some cool down time if you do alot of runs.

I'd be half temped to see if a police or highway patrol (whatever canadians have) would be willing to clock it for ya, who knows they may just get a kick out of seing an rc vehicle go as fast as a real car and break the speed limit.

Glad you posted here Over_revO. See the difference in the posts? Quality technical questions and answers. These guys will help. I can't wait to see the vids!

Yes, thx guys :)

We were using 24T 34T mod1 gear for the 91.2mph (1515 1.5d) and 88mph(2200kv)

With both motor we were not holding it at WOT long enought to see the full speed... :smile:

May be today we will be able to do a test if the weather hold up.

i would attempt to find a runway for that thing. if you lost contol and it went off that road. you can kiss that truck good by.

that is just great nevertheless. my revo feels like its hauling at 50 when im standing 10 feet away from it. ill choose to stand a lil further back when its goin that fast.

Pretty amazing ! The triple digits are not far away.

We crashed it a couples of time out of the road, the grass is long enought to help save it, only time we broke something was during a 75-80 mph cartwheels.... LOOOONG cartwheels lol :mdr:


We tried again today but my friend tightened the slipper too tight and he broke the slipper plate, everything broke in pieces at 70mph...

:smile:

Hi guys,

Yesterday i said i would may be do a little test with radar and GPS, we made one this morning on our way to the place we do speed runs,

it was done exactly at our spot, our target was 60mph with my friend's car

http://www.youtube.com/watch?v=V_uJrcOAgWw



:smile:

Nice job w/the testing...hopefully it will put the skeptics to bed

I have known OverRevo for years and let me tell you he is a stand up guy. Not a bullshitter by no means.

hey thx Jer!


didnt know you were a member here :mdr:

Awesome job with the test. Let's see the big 1-0-0 now!

Don't know if you've tried this, but since you are primarily aiming for top speed, how about converting to 2WD? That would reduce weight from the diff and three driveshafts, not to mention the extra drag from the diff. Maybe even remove the wing assembly for even more weight reduction. All that should be good for a few hundred grams, which may make the difference between 91.2mph and 95mph. Definitely dial in lots of punch control or use very gentle throttle control to avoid spinning out.

And if you do run 2WD, maybe try FWD. That should make it less apt to do donuts on take-off, no wheelies, and still have pretty good brakes. If you make it RWD, brakes would be like having e-brakes only.

Anyway, just something to try...

Thats something we may try, it would be FWD , i just dont know if it will have the traction to get up there fast enought... sshould be interresting to see :)

The wing is a must otherwise the rear end want to go ahead lol
We should have new devellopment soon.

Thx for bringing some ideas, always welcomed! :)

Mike