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Schumacher Mi4

Old 07-07-2011, 10:33 AM
  #2866  
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Originally Posted by grippgoat
Hrm. As far as I know, the CX chassis is identical to the LP, just with 4 more bulkhead screw holes, and a couple extra screw holes around the servo. My car has a 2mm chassis.

-Mike
gripgoat, the CX car is narrower,,,not as wide. the edges dont rub when you corner hard,,,it really makes a difference.

rich
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Old 07-08-2011, 09:37 AM
  #2867  
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Can anyone tell me if the gear diffs for a Mi4 will fit in a Mi3.5? Got a used one coming, really want to give the gear diff a try up front.
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Old 07-08-2011, 10:14 AM
  #2868  
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Originally Posted by nf_ekt
Can anyone tell me if the gear diffs for a Mi4 will fit in a Mi3.5? Got a used one coming, really want to give the gear diff a try up front.
It should . I ran double gear diffs on my photon last year and it was great on carpet . I ran 120,000 gear diff fluid up front and 10000 in the rear.
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Old 07-08-2011, 11:46 AM
  #2869  
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Originally Posted by Marcos.J
It should . I ran double gear diffs on my photon last year and it was great on carpet . I ran 120,000 gear diff fluid up front and 10000 in the rear.
Thanks J, it's one of seaballs older cars, I loved my old Mi2 so I'm stoked to get another Schuie.

If anyone can confirm for sure, I would appreciate it. I wish Schumacher USA was still around I'd just make a quick call.
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Old 07-08-2011, 11:56 AM
  #2870  
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i gotta believe the bulkhead spacing has remained constant from the mi3 >> mi4cx. just see if the towers are swappable, and that would imply the hole spacing is the same ... which would make the diff width the same. i'd bet anything they work...

actually, i have bulkheads that are machined to set the cams out further (for using xray diffs). those would have been good to have while you fellas were waiting for the cx gear diff to be released!

(btw - the car is on its way)
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Old 07-08-2011, 12:07 PM
  #2871  
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If someone gets a chance, do me a favor and measure the distance between the two front bulkheads, and/or the distance between the two mounting screw for the front tower (from the center of each hole in the screws should work) with a caliper.

Thanks.
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Old 07-08-2011, 02:33 PM
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I don't have a car to measure, but I just checked the old cad and everything I have is 24mm center to center.
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Old 07-08-2011, 02:41 PM
  #2873  
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Originally Posted by JoelV
I don't have a car to measure, but I just checked the old cad and everything I have is 24mm center to center.
Great, thanks friend.
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Old 07-08-2011, 05:43 PM
  #2874  
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Hello,

Does anyone know where i can buy the double bell crank for the mi4cx? It seems like no one has them in stock!!


Thank you
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Old 07-13-2011, 02:49 PM
  #2875  
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Originally Posted by NiMo
I got some of those LiPo's, was due to run them in my GT car (1s chassis with 2s cell) but the class died at my track before I got a chance.

Has now got me thinking

Just wondering if it would last a run with a 13.5 as I take around 2000 out of a 5600 50c pack ?

added:
It would drop my car weight in race mode from 1412g to 1323g
Well i race with these LiPo's in my car on Sunday, didn't get as far as balancing the left right, but I placed the LiPo towards the rear to take some weight away from the front.
Well performance wise I certainly had more corner speed, and a quicker direction change, and it also appears to have a much greater acceleration.
Took 3 seconds off my PB (now 20:304.51) and had no duration issues, and was still able to run 2 packs confortably charging at only 4A.
(a round of heats takes about 1hr)
Now to balance the car and get some new tyres.
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Old 07-13-2011, 02:55 PM
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Originally Posted by NiMo
Well i race with these LiPo's in my car on Sunday, didn't get as far as balancing the left right, but I placed the LiPo towards the rear to take some weight away from the front.
Well performance wise I certainly had more corner speed, and a quicker direction change, and it also appears to have a much greater acceleration.
Took 3 seconds off my PB (now 20:304.51) and had no duration issues, and was still able to run 2 packs confortably charging at only 4A.
(a round of heats takes about 1hr)
Now to balance the car and get some new tyres.
Interesting.

Did you race it at ~1320g, or did you add some weight to bring it back up?

How did you secure the battery in the chassis?

-Mike
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Old 07-13-2011, 03:06 PM
  #2877  
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weighted it to 1353g.
And I've been using the carbon battery brace for a while since I lost a batt in a minor shunt while leading a final.
I double side the brace to the LiPo so it cant slip or escape (have a brace for each LiPo).
I will certainly be staying with the smaller LiPo pack from now on, and may even look at getting a couple more.
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Old 07-15-2011, 12:46 PM
  #2878  
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Anyone got a good technique for de-tweaking swaybars. Preferably one that doesn't involve take them in/out of the car? What about retro-fitting some other type of endlink with preload adjustment?

-Mike
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Old 07-16-2011, 06:58 AM
  #2879  
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Yeap it can be done, and works well


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Old 07-21-2011, 05:31 AM
  #2880  
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What handling effects should I notice by going one stiffer in front springs? and what would I expect to notice in tyre temp and wear?
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