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-   -   Looking for a large scale project (https://www.rc-monster.com/forum/showthread.php?t=13602)

BL_RV0 07.23.2008 11:24 AM

I'm partial to this one:
http://www.innovativehobby.com/index...ROD&ProdID=854

VintageMA 08.04.2008 12:25 PM

Quote:

Originally Posted by BL_RV0 (Post 194111)

That's that one I am interested in too.

Sorry - haven't been around to update thread - been busy getting married and vacationing for the past month - no complaints about being satisfied with the decision, but that certainly sucked a full month of RC time out of the summer - I can't even remember which batteries of mine are charged right now and my CRT.5 has had a busted front turnbuckle for almost a month as well.

I got the 2250 and it is definitely a big motor - but not that big really. It's probably about as long as a 1521 and maybe just a touch thicker. After looking through some large scale build threads around the net it seems that this motor might not be up to the task of pushing a 25lb buggy around.

The higher end 2-stroke gas motors seem to be pushing 6-8HP and the continuous rating on the 2250 seems to be around 3000 watts which is only ~4HP. A lot of guys on the heli and boat threads talking about burning out 2250's very quickly on 8S - 10S even hitting only about 2500 watts. I find that surprising for the boats with the water-cooled jackets.

I'm thinking I would need something more torquey (sp? not sure if that's even a word :tongue:) in the realm of a 30xx (LMT) or a 2215/2230 (Neu) to be able to handle that kinda weight.

bensf 08.04.2008 01:10 PM

If you look at the options for the motors on there, the 2 really expensive ones are putting out 6-8 hp but all of the others are doing 2.5 to 4.5.

TexasSP 08.04.2008 01:20 PM

In this venture, I would be more inclined to go the neu route than lehner. If you have a problem, the lehner will take forever and a day to get fixed, the neu however will have a fairly quick turn around.

VintageMA 08.04.2008 01:38 PM

Quote:

Originally Posted by TexasSP (Post 198116)
In this venture, I would be more inclined to go the neu route than lehner. If you have a problem, the lehner will take forever and a day to get fixed, the neu however will have a fairly quick turn around.

I agree - and sorta wondering a month later why I picked up the LMT motor - except for the fact that it is, well...... a LMT motor.

Thing is it falls right under 1000kv. So it needs a minimum of 8S lipo to just about hit 30k rpm. It would run great on 10S hitting close to 37k rpm.

I guess it will go into the toolbox for a while until the right ESC (maybe a 12s CC) comes out along with just the right truck.

BL_RV0 08.04.2008 02:35 PM

Are you going to run mechanical brakes? Why not use a CC HV110 or similar?

VintageMA 08.04.2008 03:25 PM

At the moment this is all speculation - since I am currently living in a 1000sq ft condo in downtown Boston. I have no space for a 1/5 scale buggy and will end up being divorced 2 weeks after getting married if I ever brought something that big into the house. :lol::lol::lol:

Can't wait until I am out of the city again and have some space to play more.

I may run mech brakes, but I don't really race so it is nice to have forward and reverse at times.


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