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Inferno MP9 thread

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Another TKI thread, more TKI4 Specific http://www.rctech.net/forum/nitro-of...buggy-kit.html

TKI4 Replacement Parts (Good for upgrading from TKI3) http://www.kyoshoamerica.com/Replace...ts_c_1505.html

TKI4 Optional Parts http://www.kyoshoamerica.com/Option-Parts_c_1506.html

Some notes on the new Towers/Long shocks here

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

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Old 12-31-2012, 01:43 PM
  #12706  
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Originally Posted by HH
Hey Steve,

I replaced all of mine a few weeks back with some of the standard Hudy 3 x 14mm pins and they've been working flawless so far.
That's great news. Were these the newer shafts? I tried the on some of the older non HD center shafts, and it split the end of the shafts. I believe the stock pins are 2.9mm.
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Old 12-31-2012, 02:04 PM
  #12707  
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Originally Posted by HH
Hey Steve,

I replaced all of mine a few weeks back with some of the standard Hudy 3 x 14mm pins and they've been working flawless so far.
HH, thanks for posting this. I thought about this as well being a Xray guy but had 2 worries. My first was damaging the Kyosho shafts squeezing the larger pin in but you took care of that worry. My second concern was the fit of the larger pin into the diff outdrive. I took a Xray shaft with new pins and test fit it into the outdrive, it fits but drags slightly. Did you notice this on your buggy?
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Old 12-31-2012, 02:20 PM
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Originally Posted by HH
Hey Steve,

I replaced all of mine a few weeks back with some of the standard Hudy 3 x 14mm pins and they've been working flawless so far.
Hmmmm....I tried to use some Mugen 3x13.8 when I first moved over to Kyosho and it did not work. Ended up splitting the end of the drive shaft using a Hudy pin tool.
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Old 12-31-2012, 02:45 PM
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maybe the hudy pins are slightly undersize?
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Old 12-31-2012, 03:17 PM
  #12710  
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Originally Posted by houston
maybe the hudy pins are slightly undersize?
I don't think so, because I ended up also splitting mine when replacing with the hudy pins. I only tried to replace the center swing shaft pins.
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Old 12-31-2012, 04:43 PM
  #12711  
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I replaced the pins in my TKI3 with the same replacement pins I use for my kids XB9 and HB D8/LP2 since I had quite a few on hand.

I just double checked and they are actually Xray brand 3x14mm pins which I assume are the exactly same as the Hudy labeled pins and I use this Pin Replacement Tool from RCRenew which presses them in/out rather than the hammer strike type of tool.

They were definitely snug going in but the Kyosho pins were also very snug going out and none of the shafts have split after two sessions.

My drivetrain spins very free.. just as a Kyosho should.

If rfleck used Hudy pins and split the driveshafts then it may be well worth just getting the IF144 shafts and using those pins to be safe. Had I known that I probably would have gone that route myself. After all.. if you did split even one shaft it's going to cost you. The IF144 shafts are only $8 dollars (for 4 pins) so its not going cost you that much more than buying the 10 packs of replacement pins.
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Old 12-31-2012, 04:44 PM
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Can someone verify the correct part number for the Agama outdrives. I ordered the A8 EVO front/rear's part # 8219. I didnt think about it when ordering, but oim not sure if these are right or not. The shaft definitelly seems to be a little longer than the Kyosho drives. Did I order the wrong ones or am I missing something?
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Old 12-31-2012, 05:44 PM
  #12713  
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Originally Posted by rfleck
I don't think so, because I ended up also splitting mine when replacing with the hudy pins. I only tried to replace the center swing shaft pins.
? Then what is HH talking about?

I would rather just put new, the axles last quite awhile anyway
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Old 12-31-2012, 05:53 PM
  #12714  
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Originally Posted by houston
? Then what is HH talking about?

I would rather just put new, the axles last quite awhile anyway
I think he used the HD shafts since he mentions tki3 which are a little thicker than the originals. I will give it shot in about 7/8 gallons to see if it works for me as well. I was bummed when mine broke since they were relatively new. The swing shafts also work well in the 808 and xb9 buggies. The pin wears really quickly since the diff is soo far off the center of the chassis though. If I recall it was really cold when I attempted this as well (about this time last year). So it may be possible when it is warmer. The other dog bones referenced earlier aren't a bad option either. I would most likely put in new components and put these back as spares with new pins
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Old 12-31-2012, 06:50 PM
  #12715  
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Default Front control arms

Assuming I have the latest front control arms (WC) version, is there anything else I can do to them to make them stronger? I broke two in a 5-7 hours worth of driving span of time at the fear farm this last weekend (low 60's high 50's). One broke on the outside (old version) and another broke on the inside (new version). I know I need to crash less too (given) ha! I know the temp also may have something to do with it?
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Old 12-31-2012, 08:18 PM
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Originally Posted by likeaboss
Assuming I have the latest front control arms (WC) version, is there anything else I can do to them to make them stronger? I broke two in a 5-7 hours worth of driving span of time at the fear farm this last weekend (low 60's high 50's). One broke on the outside (old version) and another broke on the inside (new version). I know I need to crash less too (given) ha! I know the temp also may have something to do with it?
In cold weather boiling the plastics is reccommended.

http://www.rctech.net/forum/nitro-of...tic-parts.html Read Stubbs post and very importantly Pit Pop's post about letting the parts cool properly.

Last edited by smelly62; 12-31-2012 at 08:50 PM.
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Old 12-31-2012, 08:24 PM
  #12717  
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Hi everyone,

I came across a standard MP9, what would I need to fully upgrade to a TKI3 spec?

Thanks.
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Old 12-31-2012, 08:56 PM
  #12718  
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Originally Posted by Electrolabs
Hi everyone,

I came across a standard MP9, what would I need to fully upgrade to a TKI3 spec?

Thanks.
At this point if your car is a TKI1 then it would probably be cheaper to get a new TKI3.
There was talk of a good buy from Europe a few pages back.
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Old 12-31-2012, 08:58 PM
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Originally Posted by Electrolabs
Hi everyone,

I came across a standard MP9, what would I need to fully upgrade to a TKI3 spec?

Thanks.
I would suggest you just run it then determine whether you need to do any upgrading
I would bet you will be happy with the car
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Old 12-31-2012, 09:03 PM
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Originally Posted by rfleck
I think he used the HD shafts since he mentions tki3 which are a little thicker than the originals. I will give it shot in about 7/8 gallons to see if it works for me as well. I was bummed when mine broke since they were relatively new. The swing shafts also work well in the 808 and xb9 buggies. The pin wears really quickly since the diff is soo far off the center of the chassis though. If I recall it was really cold when I attempted this as well (about this time last year). So it may be possible when it is warmer. The other dog bones referenced earlier aren't a bad option either. I would most likely put in new components and put these back as spares with new pins
Yeah.. they are all the original TKI3 HD shafts.

The front center shaft is the one that wears out sooner than the rest due to all the scrub created from the offset. Mine had become pretty loose and was developing quite a bit of backlash so after I rebuilt the center diff with some new outdrives I didn't want to run the front center shaft with the worn out pin. This prompted me to press in one of the Xray 3x14mm pins and it went in clean with no problems so I went ahead and replaced the rest of them as well. As I said.. so far, so good, but I'll definitely report back if I have a problem with any of them.
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