Need info for 80mph brushless truggy... - Page 2 - RC-Monster Forums

George16 · 05.30.2009, 10:26 PM

Just ask Jzemaxx for some tips. His had his LST2 over 80 mph many times.

Over_revO · 05.30.2009, 10:36 PM

I do know what is involved to make it handle like it should, i have had my Nitro revo up to 66mph, nitro buggy to 77mph and truggy to 65mph all of those are the non-official record for nitro powered vehicule.

Right now we are at 76mph for the revo but my friend is waiting for new battries, hes running a pair of SMC 3S 3400mah 18c and they are not up to the task...

I had a twin nitro engine truggy i custom made geared for bashing that ran 67mph and could still pop wheelies, i have the record also for the Nitro Jato 76, the Nitro 4tec 81.

Its not to brag since a lot of poeple will be able to reproduce those speed, but was just to say i know what it take as far as setup.

If i was able to get my revo to run 66mph without any overheating issue i thought i could get a brushless setup to do even better.

Thats what i would love from my truck, being able to get unreal speed without overheating, and also being able to bash with it using that setup, swapping only the tires for speed runs.

But if you guys think its not possible to do its alright, i will think about doing something else, i was just impressed by my friend's revo power, but not being able to use that power will mean nothing for me unless it runs cool....

Hope that make sense... sorry for my english my first language is french.

:)

DwightSchrute · 05.30.2009, 11:56 PM

my question is how is he gonna run an HV-110 with a pistol grip radio?...the hv-110 is an airplane esc and uses a stick radio. they don't translate the same throttle responses without something like a pistix and i haven't seen any of those in a long time. you could use an airplane radio, but it dosen't have the spring recovery a car radio would have although i have heard of people modding the radios to use them.

brushlessboy16 · 05.31.2009, 08:14 AM

Pistix adapter.

Over_revO · 05.31.2009, 10:11 AM

Then what esc would let me run the Neu 1527 with good power?

Thx for any info, i tried to find a Pistix adaptor and couldnt find one...

TexasSP · 05.31.2009, 11:00 AM

Do a quick search in here, someone is making the pistix again.

Forgive my hesitation with you on the speed deal. I have seen a lot of people say they want X speed and really have no clue what X speed really is in the real world, that's all. If you have been there then you know.

I really think the overheating issues with the revo is the 1.5d. That motor is just too hot to run on 6s. Going back to the 1y 2200kv is a better bet. I have the CC version in my LST2 and have run it in the Revo as well and it is a great motor. In the LST2 geared slightly above 60 it never got over 145. This is in 90+ degree heat with 90+ percent humidity.

I think for you and what you want the phoenix is the right ESC to run on 12s until CC comes out with the HV Monsters. Of course you can always look at the higher voltage MGM's as well. They are expensive but very solid controllers. Startup is not as smooth as the Mamba but if you are going for speed that will hardly matter in the long run.

Oppressor · 05.31.2009, 11:08 AM

If you really want to run all day long at 80 mph, you will really need a good esc and motor.

While the brushless record for a mt was done with a neu 1521 i really don't expect that setup to run for long. A good finned 1527 with a fan is probably the minimum... The 1527 being nearly twice as strong as a 1515, i would certainly consider the 8mm shaft option...

As for esc maybe a castle hydra hv?. If you want a true car esc that can handle lot of power and money is no object then a schulze 40.160 is certainly a potent esc.

TexasSP · 05.31.2009, 12:14 PM

Unfortunately Schulze's warranty is useless though since they have so many rules and always say everything was user error. I would take MGM over Schulze any day. I would also not run the hydra as it is meant to be watercooled. The phoenix has been used quite a but with a pistix adapter with great success.

Over_revO · 05.31.2009, 12:21 PM

Ok, so a MGM esc + neu 1527 on 12S will be good , i will not only do speed runs, but i want at least 70mph on everyday setup.

And may swap gearing to see its full potential. :)

Any MGM model you guys recommend? any link where to get them? i am very good for nitro but im really beginning with the electric... but i learn fast normaly hehe

Thx for the advices, truely appreciated.
:)

jzemaxx · 05.31.2009, 12:41 PM

Been their done that.....

1521 1.5Don 12S on a XTM MMT. Bigger, heavier then a LST and the biggest MT you can buy that is 1/8th scale. That motor NEVER got hot and the ESC never got hot doing speed runs. The fastest pass on camera was a 80.4mph.

http://www.youtube.com/watch?v=ERY9_...e=channel_page

TexasSP · 05.31.2009, 01:10 PM

Rc-Monster sells MGM controllers.

Over_revO · 05.31.2009, 04:19 PM

Quote:

Originally Posted by jzemaxx

Been their done that.....

1521 1.5Don 12S on a XTM MMT. Bigger, heavier then a LST and the biggest MT you can buy that is 1/8th scale. That motor NEVER got hot and the ESC never got hot doing speed runs. The fastest pass on camera was a 80.4mph.

http://www.youtube.com/watch?v=ERY9_...e=channel_page

I remember seeing your vids Jzemaxx, good job!, im also registered on the fast-rc forum, dunno if you remember me.... i dont visit the forum a lot. hehe

What ESC you were running on 12S ?
I want to use teh setup on a truggy, like a CRT or Mutilator from Ofna.

Any info will be greatly appreciated.

Mike :)

DwightSchrute · 05:38 PM

Quote:

Originally Posted by Over_revO

I remember seeing your vids Jzemaxx, good job!, im also registered on the fast-rc forum, dunno if you remember me.... i dont visit the forum a lot. hehe

What ESC you were running on 12S ?
I want to use teh setup on a truggy, like a CRT or Mutilator from Ofna.

Any info will be greatly appreciated.

Mike :)

If i'm remembering jzemaxx's thread right he was using an HV-110 or a Turnigy unit i think.

As for finding the pistix, they are for sale again.
here's a link:

http://www.mikessubworks.com/page1.html

just look to the left under electronics and select speed controls and there it is.

my biggest concern for the 80mph speeds would be tires at that point. i always thought phaltliners were good for about 75mph but i blew one of those to pieces just the other day. i've got some foams on order, but they're not here yet.

i didn't have the gps on it but i'm guessing i was well over 70 geared 36/25 on 6S. i replaced that one and proceeded to blow another 3 so i'm done with the phaltliners i think.

here's the foams i'm gonna try:

http://www.imexrc.com/servlet/the-25...M-GREEN/Detail

Over_revO · 05.31.2009, 05:46 PM

Thx man :)

I tried these IMEX, i got one foam coming off the rim, and other one ungluing, but once you reglue them it seem alright, didnt had that much time to really test though... ive hit a wall at 65mph with my revo and broke 3 of them.... lol

brushlessboy16 · 05.31.2009, 06:44 PM

There is no point to 70mph everyday. there really isnt- its great to show off- but as soon as the truggy body gets air under it at that speed- thats a wrap.

Going for the balls out approach- building an overkill setup just because you can doesnt make you any cooler- just means that your going to spend more money on parts to replace in the long run.. build it for a reasonable purpose and spend money on more or better batteries and such.