MIP Transmission questions.

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askbob
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MIP Transmission questions.

Post by askbob »

I aquired a really nice MIP transmission for an RC10. The trans was mounted mid-motored style with a hyperdrive setup without a slipper clutch. I'm assuming for dirt oval. It seems to be pristine on the inside and out. If I use it, it will be on a modernized brushless lipo car used for dirt off-road. I've tried searching for information about this trans without much luck. So the questions are: 1. Is it any better to use this over a nice stealth or am I spinning my wheels(no pun intended!)? 2. Can any slipper clutch be fitted to it for off-road dirt use? 3. Are there any other brand of outdrives that will fit this? 4. What is the final ratio of this trans versus the 2.25 stealth?

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Re: MIP Transmission questions.

Post by THEYTOOKMYTHUMB »

askbob wrote:I aquired a really nice MIP transmission for an RC10. The trans was mounted mid-motored style with a hyperdrive setup without a slipper clutch. I'm assuming for dirt oval. It seems to be pristine on the inside and out. If I use it, it will be on a modernized brushless lipo car used for dirt off-road. I've tried searching for information about this trans without much luck. So the questions are: 1. Is it any better to use this over a nice stealth or am I spinning my wheels(no pun intended!)? 2. Can any slipper clutch be fitted to it for off-road dirt use? 3. Are there any other brand of outdrives that will fit this? 4. What is the final ratio of this trans versus the 2.25 stealth?
Looks nice. I don't know much about them personally, but if no one comes up with a definitive answer(although I'm sure someone will)you can guesstimate the final drive ratio by seeing how many turns it takes the out-drives to turn the spur gear one time.
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vintage racer
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Re: MIP Transmission questions.

Post by vintage racer »

I also have one of these,Im pritty sure they only have an adaptor for a direct drive spur so no slipper.Im looking for the adaptor with no luck yet.

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Re: MIP Transmission questions.

Post by murphy3428 »

I believe on the sp1 the ratio is 2.0

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Re: MIP Transmission questions.

Post by a01butal »

vintage racer wrote:I also have one of these,Im pritty sure they only have an adaptor for a direct drive spur so no slipper.Im looking for the adaptor with no luck yet.
Well there is the MIP SL-100 as seen in picture. Seems to be pretty rare and I was very lucky to acquire this one which will be used on a car I am currently working on. I also have an extra direct drive adapter which you may still be looking for, give me a pm if you still need one.

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Re: MIP Transmission questions.

Post by Jay Dub »

Count the # teeth on the diff gear, and divide it by the # of teeth on the layshaft. This will give you your internal ratio. -Jeff

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Re: MIP Transmission questions.

Post by askbob »

Thanks for all of the info! Looks like I'm probably SOL on a slipper clutch unless one comes out of the blue... :mrgreen:
Kinda stinks as this looks like a really nice transmission.

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Re: MIP Transmission questions.

Post by thepistol »

You might be able to modify a stealth slipper clutch or something similar to work. I remember purchasing an A&L slipper clutch for a Traxxas TRX-1 out of the clearance bin at a local shop and modifying it to work on this MIP trans.
I still have it, mounted in a Kyosho Ultima Pro.
The design of this trans was basically copied from the original Tamiya Sand Scorcher/Rough Rider, same basic gear layout. MIP just added their Diff (which was already an aftermarket upgrade for the Tamiya's). I have always found it kind of funny that when Associated updated/introduced the Stealth trans, it was basically a copy of the MIP, which was again a copy of the Tamiya. And Associated did this because they knew they worked better and were more efficient.

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Re: MIP Transmission questions.

Post by Shadow »

Just a guess, but would a B3/T3 slipper clutch work on that? Might be a possibility with the cross pin in the top shaft.

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Re: MIP Transmission questions.

Post by askbob »

I'm going to try and test fit the b3 clutch to see if some slight modification could be done to make it work. Hopefully the shaft diameter is atleast close.

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Re: MIP Transmission questions.

Post by scr8p »

the topshaft is nowhere near long enough for that.

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Re: MIP Transmission questions.

Post by a01butal »

scr8p wrote:the topshaft is nowhere near long enough for that.
and I believe it is 5mm as all the internal dimensions are in mm I think.
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Re: MIP Transmission questions.

Post by call-911 »

The Stealth was modeled after the MIP trans. Both should handle a brushless system fine. I would personally use a Stealth in a runner instead of an MIP due to the value of one vs the other. A decent Stealth you can pick up online for $40 and easily find parts for if you need them. Finding MIP parts is a bit more difficult.
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Re: MIP Transmission questions.

Post by jwscab »

if you can drill out the hub of the associated slipper plates to 5mm accurately, you can probably use a long stud in the top shaft instead of a screw, and stack the needed washers and springs and finish off with the appropriate nut. the only other thing you might need would be a 5mm spacer to help center the plates if the top shaft isn't long enough.

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Re: MIP Transmission questions.

Post by scr8p »

i had a little brainstorm about this.....

i took the trans from my kid's stampede apart. being as though they have a slipper and a 5mm topshaft, i wanted to see if it would work in the mip trans. if the topshaft was about a 1/4" longer on the gear side, i think it would work out perfect.

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