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Kyosho ST-RR

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R/C Tech ForumsThread Wiki: Kyosho ST-RR
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Current running upgrades/Mods people are doing to this truck late 2016/early 2017.

-Chassis Options
m2c2850 KYOSHO STRR EVO WEIGHT FOWARD TRUGGY

-Engine Mount Option
IFW102 - Blue narrower Mount. Allows you to put Lock Nuts on top of screws that hold the Mount plates in.
Agama motor mount AGM6206

-For MP9 Knuckle conversion
Kyosho IF419 MP9 Knuckles
Kyosho IFW436 16degree Hub Carrier
Kyosho IF420 Knuckle Arm Collar (slightly thinner than STRR one)
Kyosho IF467 Long King Pin

-Strengthening upgrades
King Headz KP-360-BLK Front Torque Arm
King Headz KP-372RR-BLK Rear Torque Arm (extended chassis)
King Headz KP-300LB-BLK Lower Front Holder B
King Headz KP-300UL-BLK Front Upper Holder L
King Headz KP-329 Rear Brace Mount
IS157 Hardened Diff Case from Psycho Kruiser
IGW002GM Alum Rear Hubs
HB Outdrives #67197

-Replacing C-Clip Hinge Pins on Inner Susp Holder
HPI 109848 Hing Pins
Racers Edge/KFactory RCEK8034 Pins (Very hard to find)
or
Replace complete A/B/C/D Blocks with:
*M2C m2c2510 KYOSHO ST-RR/ EVO REAR TOE BLOCK
*M2C m2c2520 KYOSHO STRR EVO TRUGGY FRONT LOWER ANTIDIVER KIT


-Servo Saver Mod
IFW450 MP9 SS Alum Upper Arm
IF417 MP9 SS Lower Assembly

(See http://www.rctech.net/forum/showpost...postcount=4112 for full pics and description).


-Performance Updates
IFW327BL Blue Narrow Hexes (typically run on front).

-Bodies Options
RC8T Bulldog Body (discontinued late 2016).

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Old 11-09-2015, 01:51 AM
  #3826  
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Originally Posted by H83R View Post
money aside, is it easier to buy the Evo2 new or buy a really decent Evo and just throw the Evo2 shock towers on it?
Does both the Evo & Evo2 have straight cut gears?
Both have straight cut gears, and it depends what you want, if you buy the new kit, everything will be lovely and fresh, however if you want a bunch of extra stuff, like m2c rear toe and front antisquat mods, quick change engine mount etc prob buy an evo and upgrade as itll be cheaper to get new towers then all the m2c stuff
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Old 11-09-2015, 11:47 AM
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Default body options

What other body options are there for the STrr evo. Has anyone mounted an enforcer ?
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Old 11-09-2015, 01:17 PM
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Originally Posted by jeromerc View Post
I have the aluminum servo saver arm and the hard spring on my truggy. I ordered the hard servo saver spring and just swapped out springs and the top for the aluminum servo saver arm. Fit and works like a dream
So this will fit?
http://www.amainhobbies.com/rc-cars-...ifw450/p264339

How about this?
http://www.amainhobbies.com/rc-cars-...ifw447/p262102

Thanks
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Old 11-09-2015, 03:19 PM
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This might sound like a newbie question, & i haven't read far back enough to see if it has been asked already.
But has anyone tried the Kyosho TCD gear set in the Evo or Evo2 truggy?
I see it only says compatible with the MP9, But i know a couple things are interchangable between the two
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Old 11-09-2015, 04:23 PM
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Originally Posted by H83R View Post
This might sound like a newbie question, & i haven't read far back enough to see if it has been asked already.
But has anyone tried the Kyosho TCD gear set in the Evo or Evo2 truggy?
I see it only says compatible with the MP9, But i know a couple things are interchangable between the two
I am not sure about for the front, but it would work for the center diff, however you would want to make sure you have the truggy spur gear. I think for the front it would work. I know on my Losi truggy they worked, I just had to change the spur and ring gears to swap them in.
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Old 11-13-2015, 10:31 PM
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Default kyosho ST-RR Evo2

Hi I'm looking at maybe changing brands from mugen to kyosho truggy, what can people tell me about it that will convince me to change just not sure?
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Old 11-13-2015, 10:53 PM
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What dont you like about the mugen that you think the kyosho has? If its something specific we might be able to confirm that it will help, if not, if its more of a feel thing, then youll have to drive one im afraid.
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Old 11-14-2015, 01:35 AM
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It's not anything specific it's just a change of brands couple things with the mugen I'm not liking and I've raced xray and losi so why not kyosho now?
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Old 11-14-2015, 02:38 AM
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Well kyosho is great, front arms dont like to be hit, but apart from that i have no breakage issues, have plenty of steering, the new shock towers let it rotate some, the c clips can be a pain but nothing too traumatic, however with additional investment can be rid of those via m2c captured pin system, the only thing id recommend changing from box would be, depending on your servo, a harder servo saver spring. Aluminium rear hubs are optional but nice. I think it unlikely that you will regret purchasing one.
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Old 11-14-2015, 03:11 AM
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Have you run other truggies?
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Old 11-14-2015, 06:43 AM
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ive owned an mbx6t and a d8tte, and have driven peoples mbx7t

i prefer the kyosho over all but the 7t was the closest
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Old 11-14-2015, 05:11 PM
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Originally Posted by Losi Eight T 2. View Post
Have you run other truggies?
I have only "ran" three truggys but have tried a 4th. I started out with a Hong Nor truggy which was fun, but then upgraded to a losi 2.0 and besides read diff issues it was great. I finished 3rd and then 2nd in Vietnam Nationals two years in a row with it running buggy diffs lol. I tried the Hot Bodies truggy and I liked the losi better but I just tried the HB. I got my Kyosho truggy a while back and while I loved the Losi the Kyosho is just much more to my driving style and it does rotate much better as well. On my Losi I had 12 degree fronts, the updated radio tray and even the bearings in the ackerarm so besides the diffs it was essentially a 3.0. But in all seriousness the Kyosho does seem to feel better to me, maybe it is in my mind but..... I can't really prove it as when I started winning in truggy class they stopped it so I don't have any real lap times to compare to see which is better. The only real difference is that i don't wreck as much with the Kyosho and I know I don't go wide on turns as often as I did with the Losi. Hope this helps

Last edited by jeromerc; 11-24-2015 at 04:52 PM.
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Old 11-24-2015, 04:51 PM
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Originally Posted by ROSCOE View Post
Yes it will. I ordered the hard servo saver set and the aluminum arm, simply used the Truggy servo saver set with the aluminum top and hard spring. No need for the nut but it will fit as both the buggy and the truggy are the same size on the servo saver assembly.
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Old 12-28-2015, 06:23 AM
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Folks, i minced a rear diff, do i just need to be more on top of shimming it or is there something i can do to stop it happening again?
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Old 12-28-2015, 09:25 AM
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Originally Posted by Gavel View Post
Folks, i minced a rear diff, do i just need to be more on top of shimming it or is there something i can do to stop it happening again?
Shimming and the Psycho Kruiser bulkheads should eliminate any issues. The bulkheads are super hard and it eliminates the ring gear from pushing away from the pinion gear under heavy load. Kyosho America sticks them.
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