HPI Monster Truck Forum Talk about HPI monster trucks here. The infamous Savage 21, SS, .25 or any other HPI MT. You can optionally discuss HPI in our general MT discussion forum if you prefer.

steering servo for savage x?

Reply
Old 03-14-2009, 06:01 PM
  #1
sharkattack99
Thread Starter
 
Join Date: Jan 2009
Location: Moses Lake WA
Posts: 970
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default steering servo for savage x?

i was looking for a new servo for my savage x 4.6 cause it broke the other day i was looking at these three servos are any of them pretty good. looking for something that durable, strong, and can handle some cartwheels?

1. http://www.amainhobbies.com/product_...ducts_id/18366
2. http://www.amainhobbies.com/product_...ducts_id/18374
3. http://www.amainhobbies.com/product_...ducts_id/18373

or if you have any other suggestions please say so. i really don't want to spend to much, under 60 would be nice. if you know of one for even less and can still hold up to a good bashing please let me know.
sharkattack99 is offline  
Reply With Quote
Old 03-14-2009, 06:18 PM
  #2
bigwaltc
 
bigwaltc's Avatar
 
Join Date: Jan 2009
Location: klamath falls, OR
Posts: 894
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

The first one I think the case size wont fit the savage I could be wrong
The second one will work
The third one is a Hi speed witch would be good for throttle-brake
bigwaltc is offline  
Reply With Quote
Old 03-14-2009, 07:17 PM
  #3
BudBud
 
BudBud's Avatar
 
Join Date: Dec 2006
Location: Salina, KS
Posts: 6,113
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

Pick up a SF-5 of Ebay from one of the chop shops, they seem to be a nice servo, priced right and everything fits. If you buy a HiTech, the drive is smaller, so you will have to change the servo arm as well. Glen
BudBud is offline  
Reply With Quote
Old 03-14-2009, 07:19 PM
  #4
wingedwheel-0420
 
Join Date: Aug 2008
Location: , MI
Posts: 492
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

yea, sf-5 is working for me just fine and dandy
wingedwheel-0420 is offline  
Reply With Quote
Old 03-14-2009, 07:30 PM
  #5
PrjctStrtFrce
 
PrjctStrtFrce's Avatar
 
Join Date: Aug 2005
Location: Bartlett, IL
Posts: 2,948
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

The 755 has a lot of tq, but it delivers at a slow rate. Try to pick up a Hitec 985MG off ebay. I got one for $55 shipped. Metal gears, 178 tq and .10 speed IIRC.
PrjctStrtFrce is offline  
Reply With Quote
Old 03-14-2009, 07:38 PM
  #6
yoster
 
Join Date: Feb 2005
Location: Fresno, CA
Posts: 1,026
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

SF-5 did me well. Got it for $35 shipped (chop shop off eBay). It is metal geared and mounts right up to the Savage; same servo horn and all. It has great torque. It can easily jam those tires back and forth with the truck moving still, even when the battery starts to get weak.
yoster is offline  
Reply With Quote
Old 03-14-2009, 08:47 PM
  #7
wingedwheel-0420
 
Join Date: Aug 2008
Location: , MI
Posts: 492
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

if ya dig hard enough you can score em cheaper then that
wingedwheel-0420 is offline  
Reply With Quote
Old 03-14-2009, 09:36 PM
  #8
bigwaltc
 
bigwaltc's Avatar
 
Join Date: Jan 2009
Location: klamath falls, OR
Posts: 894
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

Is the SF-5 to slow for the brake servo [sm=shades_smile.gif]
bigwaltc is offline  
Reply With Quote
Old 03-14-2009, 10:39 PM
  #9
SAVAGEJIM
 
SAVAGEJIM's Avatar
 
Join Date: Jul 2005
Location: Torchy the Fiery Fast RC Turtl
Posts: 10,544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?


Quote:
ORIGINAL: sharkattack99

i was looking for a new servo for my savage x 4.6 cause it broke the other day i was looking at these three servos are any of them pretty good. looking for something that durable, strong, and can handle some cartwheels?

1. http://www.amainhobbies.com/product_...ducts_id/18366
2. http://www.amainhobbies.com/product_...ducts_id/18374
3. http://www.amainhobbies.com/product_...ducts_id/18373

or if you have any other suggestions please say so. i really don't want to spend to much, under 60 would be nice. if you know of one for even less and can still hold up to a good bashing please let me know.
That first servo is WAY too big to fit into a standard servo tray.

The other two would be great servos, the 5645 will take alot of abuse. Fortunately in a Savage, they are contained in the batt box inbetween the TVPs, so they are very well protected.

Just for grins, the best standard sized Hitec servo I see on the market today is the 7050TH. At 6V, 403in-oz, .15sec 60degree transit sweep, and capable of 486in-oz if you push 7.2V into it.
SAVAGEJIM is offline  
Reply With Quote
Old 03-15-2009, 11:29 AM
  #10
mhovanes21
 
mhovanes21's Avatar
 
Join Date: Aug 2006
Location: Vernon, CT
Posts: 174
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

Just curious, what are decent speed ratings for the T/B and steering servos. I picked up two Hitech 645mg and am planning on using one for each task, and only to be used for bashing. Speed is .20sec/60deg
mhovanes21 is offline  
Reply With Quote
Old 03-15-2009, 01:42 PM
  #11
scarletboa
 
Join Date: Mar 2008
Location: , NV
Posts: 803
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

which size servo horn do the hpi servos use?

are they futaba sized or hitec sized. i have a hobbico servo that is basically a rebranded 645mg that i plan on using for steering in my savage as the sf-2 is weak and mine only turns left now.
scarletboa is offline  
Reply With Quote
Old 03-15-2009, 01:58 PM
  #12
PrjctStrtFrce
 
PrjctStrtFrce's Avatar
 
Join Date: Aug 2005
Location: Bartlett, IL
Posts: 2,948
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

New trucks come with new servo arms if they are not the correct ones.
PrjctStrtFrce is offline  
Reply With Quote
Old 03-15-2009, 02:05 PM
  #13
bigwaltc
 
bigwaltc's Avatar
 
Join Date: Jan 2009
Location: klamath falls, OR
Posts: 894
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?


Quote:
ORIGINAL: PrjctStrtFrce

New trucks come with new servo arms if they are not the correct ones.
What do you mean? they come with 2 different sizes? [sm=shades_smile.gif]
bigwaltc is offline  
Reply With Quote
Old 03-15-2009, 04:52 PM
  #14
sparky 25
 
sparky 25's Avatar
 
Join Date: May 2005
Location: Derry, IRELAND
Posts: 1,469
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

When building my x ss i put the steering servo from a team associated mgt 8.0,

S2008MG high torque metal gear steering servo

It has 111 oz of toruqe with a .2 second transit time,

this servo is really cheap from the chop shops on ebay i got mine for $11.00

i have found it to be plenty of power for the savage and its also metal geared
sparky 25 is offline  
Reply With Quote
Old 03-15-2009, 06:00 PM
  #15
ThunderbirdJunkie
 
ThunderbirdJunkie's Avatar
 
Join Date: Jul 2004
Location: Norwood, OH
Posts: 22,101
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

So sayeth the word of ThunderbirdJunkie...
In the book of Electronics, Servos verse 12

111 oz in? ThunderbirdJunkie would be disappointed in that torque in his 1/10 gas truck.

We suggest you keep it over 200 oz in, and look for a .15 or faster transit time.

Amen
ThunderbirdJunkie is offline  
Reply With Quote
Old 03-15-2009, 07:55 PM
  #16
SAVAGEJIM
 
SAVAGEJIM's Avatar
 
Join Date: Jul 2005
Location: Torchy the Fiery Fast RC Turtl
Posts: 10,544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?


Quote:
ORIGINAL: bigwaltc


Quote:
ORIGINAL: PrjctStrtFrce

New trucks come with new servo arms if they are not the correct ones.
What do you mean? they come with 2 different sizes? [sm=shades_smile.gif]
Yeah, Im glad that HPI does that. The optional servos with different spline counts are are blessing, because as we all do, we dump the stock SF servos and drop in Hitecs, JRs, Futabas, etc.
SAVAGEJIM is offline  
Reply With Quote
Old 03-15-2009, 08:14 PM
  #17
PrjctStrtFrce
 
PrjctStrtFrce's Avatar
 
Join Date: Aug 2005
Location: Bartlett, IL
Posts: 2,948
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

Yup^ I had to switch the servo horns when I purchased the Hitec965MG and Hitec985MG.
PrjctStrtFrce is offline  
Reply With Quote
Old 03-15-2009, 09:37 PM
  #18
SAVAGEJIM
 
SAVAGEJIM's Avatar
 
Join Date: Jul 2005
Location: Torchy the Fiery Fast RC Turtl
Posts: 10,544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?


Quote:
ORIGINAL: mhovanes21

Just curious, what are decent speed ratings for the T/B and steering servos. I picked up two Hitech 645mg and am planning on using one for each task, and only to be used for bashing. Speed is .20sec/60deg
For crisp trigger pulls, a servo with a .15sec transit sweep is probably best. You can use servos with .20sec transit sweep times, since you will be bashing, but you will begin to feel the delay when you are in mid flight from a jump and you need to gas it to pitch the nose to straighten the truck out. But for on ground bashing, that .20sec T/B time will not really hinder you.

As usual, the faster and the mroe torque the servo, the better. But if you want to remain on a budget, just weight what kind of bashing you will be doing. If you will do alot of jumps and need to correct the flight attitude of your Savage while in the air, a crisp faster servo will be better. Otherwise, the Joe Blow 645MG will suffice even for T/B duty.
SAVAGEJIM is offline  
Reply With Quote
Old 03-15-2009, 10:05 PM
  #19
SSOOCH
 
Join Date: Jun 2008
Location: , UT
Posts: 73
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

JR 9100T FTW! It's what I'm using in my Flux. Crazy torque.
SSOOCH is offline  
Reply With Quote
Old 03-15-2009, 10:15 PM
  #20
SAVAGEJIM
 
SAVAGEJIM's Avatar
 
Join Date: Jul 2005
Location: Torchy the Fiery Fast RC Turtl
Posts: 10,544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

Check out this servo I found, you can probably mount it in a gasser, but to put one of these in a Savage would require you to strip out the batt box altogether!

http://www.tokyo-hobbies.com/tonegawa.html

900in-oz of torque!!!!!
SAVAGEJIM is offline  
Reply With Quote
Old 03-16-2009, 05:39 PM
  #21
mario1711
 
Join Date: Mar 2009
Location: , UNITED KINGDOM
Posts: 2
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

I have been running my savage 25 with the Hitec 654-MG for months now and never had any problems, had afew massive crashes on the front wheels aswell and it still works fine. great servo.
mario1711 is offline  
Reply With Quote
Old 03-16-2009, 06:17 PM
  #22
sharkattack99
Thread Starter
 
Join Date: Jan 2009
Location: Moses Lake WA
Posts: 970
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

will this servo http://www.amazon.com/High-Resolutio...7248400&sr=1-6 fit in a savage x 4.6?

and are they easy to install?
sharkattack99 is offline  
Reply With Quote
Old 03-16-2009, 07:21 PM
  #23
bigwaltc
 
bigwaltc's Avatar
 
Join Date: Jan 2009
Location: klamath falls, OR
Posts: 894
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

It only has 149 oz of torque I think the stock S-5 from a XL has more then that so I don't think it would be a up grade [sm=shades_smile.gif]
bigwaltc is offline  
Reply With Quote
Old 03-16-2009, 10:29 PM
  #24
SAVAGEJIM
 
SAVAGEJIM's Avatar
 
Join Date: Jul 2005
Location: Torchy the Fiery Fast RC Turtl
Posts: 10,544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?


Quote:
ORIGINAL: sharkattack99

will this servo http://www.amazon.com/High-Resolutio...7248400&sr=1-6 fit in a savage x 4.6?

and are they easy to install?
This servo will be an absolute direct drop in for ANY Savage. I have two of these in one of my 5th scales, and they are great. Though I delegated them to dual-brake duty (actually, 4 discs, a disc brake at each wheel), they have the torque to lock the brakes in a jiffy.

I have the robotic version of this servo, its older version, the 5995TG in my basher savages, and they turn the wheels whith no problems at all. Even if you get Imex Jumbo Kong wheels, the 5995, 5955, and the 7955TG servos will do the trick easily, they are all 333in-oz torque rated. The 7955 is superior to my older 5995 because it actually has a faster transit sweep time of .15sec vs my 5995's .20+ sec
SAVAGEJIM is offline  
Reply With Quote
Old 03-16-2009, 11:08 PM
  #25
sharkattack99
Thread Starter
 
Join Date: Jan 2009
Location: Moses Lake WA
Posts: 970
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: steering servo for savage x?

it must be very durable seeing that the gears are titanum? would u get this one or a sf-5.
everybody seems to like the sf-5 but from what i under stand its a stock servo for the xl and nobody seems to like stock servos?
sharkattack99 is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 03:46 PM.