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Old 05-07-2004, 02:36 PM
  #4411  
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Originally posted by rc_square24
sorry guys...the motor mount i was talkin about
i am guessing it is to prevent the chance of chassis weak...
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Old 05-07-2004, 02:40 PM
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The Evo3 has a similar motor mount. I was told that it helps prevent/limit torque steer from the motor.
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Old 05-07-2004, 05:26 PM
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Originally posted by OSherman
i am guessing it is to prevent the chance of chassis weak...
yes but more things fixed to the chassis...wont that in a way make the chassis stiffer as it cant flex as much in different ways.
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Old 05-07-2004, 06:45 PM
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So does the Pro4 still blow chunks..of ring & pinion gears if you hit anything with a oneway installed or has someone found a fix for this "little" problem..
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Old 05-07-2004, 08:08 PM
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Team PRP makes a brace that goes on top of the bevel gear in the front, heard that no more gears broke after having installed. preordered mine
other then that, definately recommend this car to you, one of the best you can get.
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Old 05-07-2004, 08:15 PM
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Have 2 of them already,they tried that with the evo III and it did not really work,I was hoping for something like what the cuda uses..a well designed oneway.I like the rest of the car(well not the chassis tweak problems)but other than hard to get parts it's been a ..car..
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Old 05-07-2004, 08:29 PM
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Default Which Rims to Run

I've been racing the Pro 4 for a few weeks and just love this car. My only problem is my HPI (dish)or Take-off rims seem to rub on the shock ends and camber linkage ball cups. What does everyone one else run for rims. Or should I bite the bullet and just move the ball cups in like I did with the shocks.
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Old 05-07-2004, 08:42 PM
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morosis shave the cups off thats what i did it seems to be working.
will
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Old 05-07-2004, 08:52 PM
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i talked to hara at the worlds warm up race he told me that hpi is working on a new chassis that is tweek free. the man freekin drive .
later will
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Old 05-07-2004, 08:53 PM
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Originally posted by xxxkat
Have 2 of them already,they tried that with the evo III and it did not really work
I've seen Penquin's Evo gear brace, and it's just a graphite plate. The PRP brace is machined from AL, and fits the whole profile of the gear all the way out to the edge. This removes flex from the gear, and I still have not chipped a single tooth after running with it for a long time now. Sure, It's probably still possible to toast a gear - as with any car, but for a majority of the hits, I really feel the PRP brace will work. I've had enough hard on-power hits to convince me!

I've also had a couple Tamiya guys at my track say that their gear problem isn't entirely the issue, and something with the shaft also is. I don't have the car, so I really don't know.

morosis - The only time I saw a problem with running the shock in the outer bottom hole would be if the Take Off wheel was slightly bent. A new set didn't rub for me, but I moved it to the middle hole anyways.

For the top ball cup, I just shaved it down with a dremel, just enough for clearance. You could also remove some material from the Take off wheels, I did that with one set, just rounded the corner off which also gave it clearance for the shock & ballcup.
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Old 05-07-2004, 08:54 PM
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Originally posted by Michal101
Pops,

I had the same problems, so I mounted my receiver on top of my servo and the problem vanished. Since the receiver is so small it did not have an ill effects.

Mike
I hated to resort to mounting on top of the servo with so much room for everything on the Chassis.
Hopefully with the re-arranging of the electronics, it will be better this weekend.

Thanks,
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Old 05-07-2004, 09:12 PM
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question on Spur gear changing

I want to know how many screws need to remove from the chassis for me to take out the spur gear and change it?

and can anyone please tell me what is the procdure of doing it?
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Old 05-07-2004, 10:04 PM
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Default Re: question on Spur gear changing

Originally posted by chappi
I want to know how many screws need to remove from the chassis for me to take out the spur gear and change it?

and can anyone please tell me what is the procdure of doing it?
just go to HPI web page and DL it from them. it takes like two seconds and it makes it easier on us so that we dont have to explain it

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Old 05-07-2004, 10:26 PM
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just go to HPI web page and DL it from them. it takes like two seconds and it makes it easier on us so that we dont have to explain it
I have DL and read the manuel. But on Page 16, step 16, the diagram show that we need to use the screw Z355 to screw through 73511(plastic parts) and then screw on the upper level of the gear case.

then the diagram shown, we put the upper-level case on top of the bottom-level gear case. So I am wondering does the screw Z355 actually screw on both the upper & bottom gear case, or just only the upper gear case!?
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Old 05-07-2004, 10:36 PM
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Originally posted by chappi
I have DL and read the manuel. But on Page 16, step 16, the diagram show that we need to use the screw Z355 to screw through 73511(plastic parts) and then screw on the upper level of the gear case.

then the diagram shown, we put the upper-level case on top of the bottom-level gear case. So I am wondering does the screw Z355 actually screw on both the upper & bottom gear case, or just only the upper gear case!?
you reading the right manual??? there is no step 16 on page 16, at least when you download page 16 of the pro 4 manual from hpiracing.com.
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