MP What Servo's to use?

[kiwi49er]

I am thinking of getting the MP from Ace-hobbies. Is the standard airtronics blazer controller they sell, at ace, good enough or am I looking to have to invest in some high torque servo's?
Your opinions would be much appreciated.

Andrew

[Inferno Runner]

The highest torque, highest quality servo you can afford is highly recommended. The truck weighs around 11lbs and those tires are HUGE. I think the RTR comes with 135in/oz of torque for steering. I run an Airtronics 358 (200in/oz of torque) for steering and it does an excellent job, but they aren't cheap ($105+).

[jives]

I use a Hobbico CS-71MG, think it's spec'd at 132oz/in@6V. I got mine at tower for $40. Note I use the same servo in my E-pede no problems with either of them.

[MP21stomper]

I used to run the HS-945 (153oz/in) and it didn't even turn the wheels to full lock either way! I was so upset that I took it back and now I'm purcahseing an 94358 (200oz/in) oh yeah!

[jives]

Originally posted by MP21stomper
I used to run the HS-945 (153oz/in) and it didn't even turn the wheels to full lock either way! I was so upset that I took it back and now I'm purcahseing an 94358 (200oz/in) oh yeah!

Huh? You mean it won't go "Lock to Lock" while the wheels were on the ground or even if you suspended the truck and tried?

The distance the wheels turn is based more on the throw of the servo (and not on the Torque. This can mean the position you place the connecting arm from servo horn to steering arm. My MP is set to the furthest out on the servo horn and the closest in on the steering arm. Meaning my wheels turn about as far as the kit can go.

But this mean the servo has to work pretty hard to turn at slow speeds. While the truck is setting still or moving very slowly the resistance is higher and the servo saver will absorb some of the motion. My servo moves just the wheels don’t turn very far if it’s just sitting still.

Maybe I'm misunderstanding what your saying? But my 132oz/in Hi-TQ servo turns mine just fine, if the front tires are on the ground :)

MP Video (http://spud.unl.edu/video/MP-RC_Final_1.mpg)

[Chief]

Any servo with atleast 100 oz/in will work just fine. i use a hitec 615 for the steering and a 605 for the throttle. Everything works great on it. These servos are cheap too but good servos.

[kiwi49er]

Thanks a bunch folks,

I am feeling a littlemore confident. I was really worried how much the radio set up was going to set me back.

With the special, I am trying to price in under a T-maxx RTR. If not it's the T-maxx for me.

[Chief]

The difference is that with stock trucks the monster pirate is waaaaaaaaaaaaaaay better of a truck, and is a lot more durable. It is well worth the money to spend a lil extra even if you have to to get the mp. But there are some very good deals out right now on rtr versions. You have to dump a lot of money into the tmax to make it faster and more durable when the monster pirate is set up stock so that you can upgrade to any motor and not worry about changing anything to make it last.
Good luck and have fun.

[kiwi49er]

Nice advice.

The MP is what I want. So I quess you could say I am tetering on taking the plunge and it is a matter of clicking that buy now button and its all over rover.

I am going to have to offload my Z-10 to do it. But I will do it. Monster Trucks Just have so many more places to run them. Plus they are so much more fun. I remember what they were like when I got my Tamiya Blackfoot (Way too many years ago now). I still wish I hadn't traded it today.

Thanks again folks.

[MP21stomper]

I was just saying that yeah me servo will load up on the saver and it wont turn anymore until I lift the front end up. Almost enough torque. The saver has got to be made stronger somehow!

[kloyal]

ultimatehobbies has the mp kit with everything remote servos
for 299$ i dont think ace has it that cheap?

[kloyal]

and engine

[Inferno Runner]

MP21Stomper, you can disassemble the servo saver and install a washer at the botton of the spring. This squeezes the spring more and increases the tension and lets the servo saver handle a little more torque.

[TC3Racer]

I have a T-maxx and although the T-maxx tires are not as big as the MP's tires, the stock servo doesn't even turn when it is standing still. I upgraded to the Hitec MG hi torque servos. They turn quick and are really reliable. I run them on all my cars.

[kiwi49er]

kloyal,

Thanks for the heads up. I jumped and baught it without selling the Z-10 (my wife is gonna freak).:D

Man you should see the grin on my face I am itching to get it. Thanks for the reasurances folks.

Andrew

[Rods]

try the towwerhobbies ts-71 has over 100oz with 6v batts and at 34 bucks+ its hard to beat , i have one in my MP and it turns great

[maxx_RC]

Just go and get a servo saver from Kinbrow or GS and they are much stiffer. I have one on my stock T-Maxx servo and it improved the steering a lot. But beware that you are more likley to strip gears as the servo saver soaks up less in impacts as it gets tighter.

[MP21stomper]

Thank Inferno runner! I'll do that tonight

[Coconut]

With the off-set in the MP I would increase the load on stoc k spring as inferno says. Irun the maxx,and even with thw heavy truck kimbrough I found it was too weak with airtronics 94358 servo causing centering problems . I change to the supermaxx servo saver and it works perfect.

[sk8erdude1080]

does any one know how fast the monster pirate go
and can u change the tires to smaller ones

[Chief]

The monster pirate IS capable of very high speeds. It all depends on the motor you get. Get a very good motor lihe the ofna picco O-1 which is rated at 43000 rpm and 2.5 hp and the monster pirate will absolytley scream! Also the Rb concepts C4 or an Os 21 rzv01b, both of these motors will make it haul but too. My monster pirate is as fast as any of the 1/8 th scale buggies in the straight aways when i race at the track, that should give you an idea of how fast it goes.
Also yes you can get smaller tires. You can buy a pair of ofna monster blazer sst rims which are 17 mm hex also, and they allow you to get ANY tmax tire. These tires and rims will make the pirate a lot faster/quicker and it will stop all the harshness of those huge tires on your drivetrain.

hope this helps.
-Tim

[sk8erdude1080]

how fast will it go with the hyper .21 engine it comes with?

p.s. i want to make it into a 1/8 buggy can i change the tires to buggy size tires?
email me your reply at sk8erdude1080@hotmail.com

[sk8erdude1080]

does any one recomend a monster pirate for a first niro truck
i have had a electric rc10 buggy but i want to stay in a prise range of $250 or should i get a nitro 4-tech sadan i want speed but i dont want any thing to tall i was wondering if you can turn a monster pirate into a 1/8 buggy and still go around 35 miles an hour do you recomend any other nitro cars or trucks i dont think a nitro 4 tech can go off road so i would like a nitro monster pirate its a good buy for its price and you cant find any rc cars or trucks with a .21 engine for that price
i would apreciate if you can reply at sk8erdude1080@hotmail.com

[sk8erdude1080]

does any one want to buy a academy (electric) sp3 extreme with rolling chases spunge tires reedy sonic motor needs battery remote, and servose comes with body
best ofer

[sk8erdude1080]

does any one know where i can get the monster pirate 2 speed tranny and how much does it cost?
p.s. email me your reply at sk8erdude1080hotmail.com

[sk8erdude1080]

how hard is it to tune the hyper .21 engine on the monster pirate is it a good fast engine?

[Inferno Runner]

You have some good questions, but I think you would get more responses if you started a new thread under a new topic.

Monster Pirate Upgrades (http://www.ace-hobbies.com/Upgrades/searchform3.php3?productnumber=OFN18&test.x=9&test.y=8)

I think the Hyper .21 is a great engine for the $$$. It's not any harder to tune that any other .21 engine. It performs very well, even in the MP which is huge and weighs almost 11lbs.

[sk8erdude1080]

i dont know what to pick i like the monster pirate but i dont want to spend the 100.00$ for the 2 speed tranny i like the nitro 4-tech sedan but i'd like to go off road to please help give me some good reasons why i should get the mp or th 4-tech sedan i want speed will the mp go faster than a electric 1\10 scale buggy?
how fast will it go with a hyper .21 will it get any air on jumps?
can you give me any web sites so i can see how fast it goes?

[sk8erdude1080]

how fast does the traxxas nitro rustler go rite out of the box?

[Inferno Runner]

As I mentioned in the email I sent to you, RCCA clocked the stock MP with a Hyper .21 at around 33 mph. With more horse power and/or a 2 speed you can get it to go much faster. If you want a land missle you drive on flat, relatively clean surfaces, get the 4-Tec (50+ mph out of the box). If you want a large monster truck that can climb, jump and run just about anywhere, then get the MP. I think 33 mph (stock) is respectible for a truck of that size. I run a steel spur gear, a more powerful engine and re-worked the shocks on my MP - it jumps pretty good and is fast. Bottom line - What's more interesting to you, on-road or off-road?

[sk8erdude1080]

what kind of servose do i have to use i have a remote from a street onroad car will that work or do they have to turn sharper or do they have to have more power to turn the weels?
do you know were i can download videos of the mp going 30 mph on a stock motor?

[sk8erdude1080]

what is a servoe saver i here about saying to put a washer st the bottom and it gives it more torqe