Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
Kyosho Inferno MP9 TKI4 1/8 Buggy Kit >

Kyosho Inferno MP9 TKI4 1/8 Buggy Kit

Like Tree314Likes

Kyosho Inferno MP9 TKI4 1/8 Buggy Kit

    Hide Wikipost
Old 11-05-2018, 09:06 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Kyosho Inferno MP9 TKI4 1/8 Buggy Kit
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
Last edit by: 30Tooth
Picked up a TKI3 and want to upgrade to TKI4 ? Here are all the updated parts:

Shocks

IF347-155 1.5X5 Pistons
IF471-01 Front Shock Body
IF470-01 Rear Shock Body
IF470-03BK Shock Adjust Dial
IFW154 Boots
IF346-05C Shock End Set

Wing

IF491BK Wing
IFW460B Wing Mount/Stay

Rear End

IFH006W Wheel
IF490 HUB
IF490-01 Hub Insert
IF492 Shock Pin
IF423HB Rear Arm
IF287 Hard Upper Rod Rear

Front End

IF489 Steering Rod Set
IF488 Knuckles
IF487H Front Arm
IFW458 Hard Lower Pin
IFW425 93MM CVD
IF286 Hard Upper Rod
IF486 Lower Susp Holder
IFW459 Servo Saver (Hard)
IF446B Ackerman Arm
IF426-64.5 Susp Shaft


Other

IF469B Filter
97035LW-13 Clutch Bell
IF453B Body Mount
IFW107GM Hexes
W300910 Washer
IF443B Center Diff Plate
IF444C Tank
IF479B Radio Box
96772 13x16x0.15mm Shim
IF481B Fuel Tank Stay
IFW336GM Wheelnut
IFB008 TKI4 Body
IFD403W TKI4 Decal

---------------------------

Another option if you want TKI4 Durability but TKI3 geometry of the front arm is :

IF493 Front Arm (Updated MP9 front arms replaces IF427B as a direct fit. Left and right.)

They use the older TKI3 captured outer hinge pin and screw. But if you just reem out the the outer hole you can use TKI hinge-pin/nut (IFW458)
---------------------------

Optional Updates / New Parts:

IFW469 IFW469 Aeration Cap Set(Threaded Big Shock/MP9)

IFW473 New Brake Pads (Sept 2017)

Optional Alu front hubs:
- IFW412 - 13 deg (like stock plastic ones)
- IFW436 - 16 deg
- IFW474 - 17.5 deg
- IFW461 - 19deg

M2C 1mm engine spacer: M2C9610

Body Options
New Bitty Force Body

Tebo's Build Videos

Video #1

Video #2

Video #3

Video #4

Video #5

Video #6

Original Kyosho MP9 TKI Thread
_____________________

Baseline setups from Joonas.




_____________________

Shock build with vented cap and compensator.

You have to use the HC diaphragms (if346-09,stock TKI3 and if not mistaken TKI4 too, yes the thin ones no one likes), aeration caps without the bleeder screw or mod the stock caps by drilling a 1.5 or 2mm hole on the top facing up or at an angle (doesn't matter the size or angle, it just for bleeding pressure behind the diaphragm and allow the foam compensator to breathe) and a 10mm width x 3.5mm height dome shaped foam compensator made from old open cell inserts or dishwasher sponge. The foam compensator has to be soft enough not to add rebound but allow the diaphragm to regain it's shape.

Setup Sheet and Tuning

The setup sheet is getting crowded with all options but don't worry once you get acquainted with the parts will make sense.
Run the car as is, more than probably you won't need anything else. Using my setup as an example:

Diff gear has two options, normal and LSD. LSD stands for limited slip differential and is like using thick oils because you can't tune coast from locked.

Shock setup is a bit more confusing, you have two shock body sizes (S and M and truggy sized rear shocks that only the first version had so forget this one), three types of pistons (flat holes and surfaces, flat holes tapered surface and tapered holes with tapered surface): tapered have most pack, then black(simple piston) and then white because length of the holes. Then you have different length springs to account for different shock sizes, for a standard wheelbase/no weights car a good combo is Light Blue front and Orange rear, if you extend the wheelbase then I expect the included Light Blue rear springs be money instead of Orange.

Ride height is self explanatory, start always with lower arms parallel because good suspension geometry will be far easier to achieve. Rebound is used as total shock length no idea why they call it rebound, either use total shock length or maximum exposed shock shaft length. Camber self explanatory, run more camber in the front than the rear to make the car oversteer and more rear than front to make it understeer(grossly oversimplified).

Toe same deal as camber(again grossly oversimplified) but this you have to run the least amount you can. I use around 2-2.5 on my cars, never more as I can find traction by other means with way less impact on performance.

Wheelbase is a powerful setting, changes a lot of stuff. Let's just say that it can make the car behave neutral or not in that small range. Try for yourself. I like to use the longest setting and tune from there.

Shock position self explanatory, something most don't change and I don't play around with it. I do have a method but involves much work (with the car bottomed out, see which position places the shock 90 to the lower arm and then chose spring from a couple equations and bam done, I can do it easily so anyone interested just ask.

Rear upper arm position is again an important setting, you change both camber gain and roll centre. The rear roll centre should be higher than the front, that's why I use the middle hole inner row as a starting setup.

Suspension arm, self explanatory: there are two different length arms and each has a hard and a normal flex plastic.

Front suspension bushing is for upper arm alignment, also same deal as rear upper arm position changes both camber gain and roll centre.

Suspension holder is for kick up (pro dive is the correct naming). I believe tki4 9 of kick up to be better than 9 of kick up using the tki3 parts because you can run the car lower (26mm front ride height) and use the +2mm front shock tower if there's too much camber gain or it's stiff in roll. So use +2mm lowered roll centre to keep most stuff unchanged or use the bushings with the dot up to lower the roll centre a bit more, doesn't hurt anything.

Front hub carrier, self explanatory. I am trying to use the out hole on top of the carrier as it is better during braking and accelerating. Together with the higher front roll centre on the tki4 should provide enough camber gain during cornering if not then more caster will do.

Rear roll centre and anti squat(wrongly called skid angle). Again same thinking as the front, lower the car and keep roll centre in the same height as before(that will need a change in upper arm position which my setup does). Anti squat is changed only if the pitching motion causes too much camber to be gained by the rear tires on power, nothing more.

Front knuckle, apparently there's a difference in the Ackerman arm. Can't say anything about them as I don't know enough about both.

Rear hub carrier,there is one made of plastic (which doesn't have offset apparently so it's suited to long arm setting) and three aluminium versions. One similar to the plastic one, other with offset and a new one with offset and adjustable hub height.

Rear tread can be used as arm length and outboard toe(never seen it being used but the possibility is there). Longer is better most of the time (only on really low traction).

Chassis brace, wheel hub, sway bars and weight are self explanatory. No need to use weights nor other hubs. A couple of roll bars would be a nice addition. About the aluminium braces I am torn, I guess the car doesn't need flex with this setup but won't recommend the stiffer braces but the lower engine mount is very nice to deal with flex around the clutch.

Wing and wing stay are like the d81x had regarding height and position. The wing should be as low and have free airflow as possible.

Print Wikipost

Old 11-20-2016, 10:38 PM
  #946  
Tech Master
iTrader: (21)
 
Join Date: Sep 2010
Location: So Cal
Posts: 1,953
Trader Rating: 21 (100%+)
Default

I don't hang my cars but make sure you're tightening your diff screws down tight and snug.Thats what fixed my leaking problems
rcmoe is offline  
Old 11-20-2016, 10:49 PM
  #947  
Tech Fanatic
 
vandalzzz's Avatar
 
Join Date: Jul 2013
Location: somewhere near Japan
Posts: 762
Default

btw, what is a working droop range both F and R for stock shock package (S and M acc.)?
vandalzzz is offline  
Old 11-21-2016, 07:57 AM
  #948  
Tech Adept
iTrader: (4)
 
Join Date: Aug 2015
Posts: 148
Trader Rating: 4 (100%+)
Default

Originally Posted by vandalzzz
btw, what is a working droop range both F and R for stock shock package (S and M acc.)?
Depending on track conditions, I run a range of 98-101 front and 116-120 rear.
450rdawg is offline  
Old 11-22-2016, 12:08 PM
  #949  
am
Tech Master
 
Join Date: Jul 2004
Location: Norway
Posts: 1,842
Default

Hi, could someone find the part numbers for the spurgear on the centerdiff on the TKI3 rs model? Is it the same as the TKI3/4 version IF 410-46

I know they will crossfit, but need the partnumber from the TKI3rs manual. Diffs on ebay for the RS is bery cheap if the spurgear is the same.. :-)
am is offline  
Old 11-22-2016, 12:47 PM
  #950  
Tech Elite
iTrader: (89)
 
Motorman007's Avatar
 
Join Date: Dec 2003
Posts: 3,420
Trader Rating: 89 (100%+)
Default

Originally Posted by am
Hi, could someone find the part numbers for the spurgear on the centerdiff on the TKI3 rs model? Is it the same as the TKI3/4 version IF 410-46

I know they will crossfit, but need the partnumber from the TKI3rs manual. Diffs on ebay for the RS is bery cheap if the spurgear is the same.. :-)

Center Differential & 46T Spur Gear
Kyosho Inferno MP9 TKI3 RS
http://www.dollarhobbyz.com/collecti...-46t-spur-gear

46T Spur Gear (Part # KYOIF401-46)
Hardened Steel Construction
Two (2) Differential Shafts (Part # KYOIF413)
Two (2) 8x16x5mm Metal Shield Bearings (Part # BRG005)
Differential Case and Gasket Set (Part # KYOIF403)
Two (2) Differential Bevel Gears and Washers (Part # KYOIF402 Partial)
Two (2) P6 Silicone O-Rings (Part # KYOORG06 Partial)
Differential Bevel Shaft (Part # KYOIF411 Partial)
Four (4) 3x10mm Flat Head Screws (Part # KYO1-S33010 Partial)


MP9 Center Differential
Kyosho Inferno MP9 TKI3
Center Differential
Two (2) Center Differential Shafts (Part # KYOIF413)
Two (2) Shielded Ball Bearings 8x16x5mm (Part # KYOBRG005)
Differential Case Set and Gasket (Part # KYOIF404)
Differential Bevel Gear Set (Part # KYOIF402)
Two (2) Differential O-Rings (Part # KYOORG06 Partial)
46T Spur Gear (Part # KYOIF410-46)
Differential Bevel Shafts (Part # KYOIF411)
Four (4) Case Screws
http://www.dollarhobbyz.com/collecti...r-differential
Motorman007 is offline  
Old 11-22-2016, 12:48 PM
  #951  
Tech Initiate
 
PaulNZ's Avatar
 
Join Date: Aug 2014
Location: New Zealand
Posts: 35
Default

.

Last edited by PaulNZ; 11-22-2016 at 12:49 PM. Reason: already answered.
PaulNZ is offline  
Old 11-22-2016, 01:20 PM
  #952  
am
Tech Master
 
Join Date: Jul 2004
Location: Norway
Posts: 1,842
Default

Originally Posted by Motorman007
Center Differential & 46T Spur Gear
Kyosho Inferno MP9 TKI3 RS
http://www.dollarhobbyz.com/collecti...-46t-spur-gear

46T Spur Gear (Part # KYOIF401-46)
Hardened Steel Construction
Two (2) Differential Shafts (Part # KYOIF413)
Two (2) 8x16x5mm Metal Shield Bearings (Part # BRG005)
Differential Case and Gasket Set (Part # KYOIF403)
Two (2) Differential Bevel Gears and Washers (Part # KYOIF402 Partial)
Two (2) P6 Silicone O-Rings (Part # KYOORG06 Partial)
Differential Bevel Shaft (Part # KYOIF411 Partial)
Four (4) 3x10mm Flat Head Screws (Part # KYO1-S33010 Partial)


MP9 Center Differential
Kyosho Inferno MP9 TKI3
Center Differential
Two (2) Center Differential Shafts (Part # KYOIF413)
Two (2) Shielded Ball Bearings 8x16x5mm (Part # KYOBRG005)
Differential Case Set and Gasket (Part # KYOIF404)
Differential Bevel Gear Set (Part # KYOIF402)
Two (2) Differential O-Rings (Part # KYOORG06 Partial)
46T Spur Gear (Part # KYOIF410-46)
Differential Bevel Shafts (Part # KYOIF411)
Four (4) Case Screws
http://www.dollarhobbyz.com/collecti...r-differential
And thats why i am asking. I think Dollars partnumbers are wrong. If you google IF401 that is a wing from Kyosho, not a spur gear :-)
am is offline  
Old 11-22-2016, 01:30 PM
  #953  
am
Tech Master
 
Join Date: Jul 2004
Location: Norway
Posts: 1,842
Default

I googled IF403 also, it seems that it is the old small volume diffcase from Mp7 and 777 series. So, the picture in the Dollar ebaylisting is not correct either. Does the TKI3 RS have a small or large volume diffcase? All pics i can find online seems that it has a large volume diffcase like the MP9 TKI3
am is offline  
Old 11-22-2016, 01:49 PM
  #954  
Tech Elite
iTrader: (89)
 
Motorman007's Avatar
 
Join Date: Dec 2003
Posts: 3,420
Trader Rating: 89 (100%+)
Default

https://www.google.com/url?sa=t&sour...8JLbhVvyA2q3xQ
Motorman007 is offline  
Old 11-22-2016, 05:37 PM
  #955  
Tech Adept
iTrader: (4)
 
Join Date: Aug 2015
Posts: 148
Trader Rating: 4 (100%+)
Default

Anyone else had an issue with the exhaust pipe wire breaking?
450rdawg is offline  
Old 11-22-2016, 06:39 PM
  #956  
Tech Master
iTrader: (42)
 
Join Date: May 2009
Posts: 1,121
Trader Rating: 42 (98%+)
Default

yes plus the pipe hanger holder is an odd size so you have to drill it out to get anything bigger than the Kyosho wire to fit. I spotted this on Elliott Boots car in an under the hood on Neobuggy and its the same one i have been using for more than a season and 2 kits later still good to go:

Its an Ofna pipe hanger and they are discontinued but Traxxas has something similar for the Tmaxx i think.....i would have to check the shop but im out of town till sat. Just bend to fit use a lock nut and no more broken pipe hangers or melted tanks anymore and keeps the pipe straight. I also use the Kyosho white pipe support to keep the pipe from hitting the mud guards
RockStar_199 is offline  
Old 11-23-2016, 05:06 AM
  #957  
Tech Regular
iTrader: (5)
 
KyoshoRed's Avatar
 
Join Date: Dec 2013
Location: Knoxville TN
Posts: 317
Trader Rating: 5 (100%+)
Default

Originally Posted by am
Hi, could someone find the part numbers for the spurgear on the centerdiff on the TKI3 rs model? Is it the same as the TKI3/4 version IF 410-46

I know they will crossfit, but need the partnumber from the TKI3rs manual. Diffs on ebay for the RS is bery cheap if the spurgear is the same.. :-)
If you need to know ANY part # go to kyoshoamerica.com>factory support>manuals> car> buggy series
And there is the exploded view of every car there is. And the spur gear is the same on all Mp9.IF410-46
KyoshoRed is offline  
Old 11-23-2016, 05:21 AM
  #958  
Tech Lord
iTrader: (359)
 
tobamiester's Avatar
 
Join Date: Jul 2009
Location: Tea drinking Limmey in NJ
Posts: 12,320
Trader Rating: 359 (100%+)
Default

Originally Posted by RockStar_199
yes plus the pipe hanger holder is an odd size so you have to drill it out to get anything bigger than the Kyosho wire to fit. I spotted this on Elliott Boots car in an under the hood on Neobuggy and its the same one i have been using for more than a season and 2 kits later still good to go:

Its an Ofna pipe hanger and they are discontinued but Traxxas has something similar for the Tmaxx i think.....i would have to check the shop but im out of town till sat. Just bend to fit use a lock nut and no more broken pipe hangers or melted tanks anymore and keeps the pipe straight. I also use the Kyosho white pipe support to keep the pipe from hitting the mud guards
Great info, i'd seen this before and going to give it a try. My OS2090 never aligned very well. Thankyou!
tobamiester is offline  
Old 11-23-2016, 10:54 AM
  #959  
Tech Adept
iTrader: (4)
 
Join Date: Aug 2015
Posts: 148
Trader Rating: 4 (100%+)
Default

So, can anyone confirm if the LFR body for the MP9 will fit this?
450rdawg is offline  
Old 11-23-2016, 11:38 AM
  #960  
Tech Lord
iTrader: (359)
 
tobamiester's Avatar
 
Join Date: Jul 2009
Location: Tea drinking Limmey in NJ
Posts: 12,320
Trader Rating: 359 (100%+)
Default

Originally Posted by 450rdawg
So, can anyone confirm if the LFR body for the MP9 will fit this?
Yes I ran the LFR MP9 body on my TKI3 and no reason why it won't fit on the TKI4, nothing has really changed as far as the chassis layout goes.
tobamiester is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.