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Old 01-31-2009, 10:27 AM   #2551
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Originally Posted by olev View Post
Stefan, by adjusting the wheelbase, do you mean cutting the front lower arms? I think this is what Mugen guys did at last years WC in Portugal to get more steering. Haven't tried it myself.
Yep, that's what I mean!

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Care to explain in a bit more detail your adjustable oneway solution? Sounds interesting...
It's difficult to explain. I will try to take some pics next week and post them here
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Old 01-31-2009, 11:03 AM   #2552
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we have also cut the front bulkheads behind the arms , works great makes car rotate better
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Old 02-02-2009, 03:08 PM   #2553
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Anyone looking to unload a new or like new mrx4x, have a 07' wc evolva fully hopped up to trade email if interesed, i ran like 6 times, wanna check my options [email protected] Not to spam!
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Old 02-02-2009, 03:57 PM   #2554
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we have also cut the front bulkheads behind the arms , works great makes car rotate better
do u have pics of this mod?
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Old 02-02-2009, 04:16 PM   #2555
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Anyone knows about the team orion servos??
Does they worth the money??
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Old 02-02-2009, 10:40 PM   #2556
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Anyone knows about the team orion servos??
Does they worth the money??
I saw you are already using sanwa m11 radio.

why don't you buy sanwa servos ?

I'm using sanwa vx and vz in mtx4 and mrx4r respectively.

( becareful people ...., vx and vz are not digital servos, thus they are not suitable for futaba hrs receiver !! ).
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Old 02-03-2009, 10:39 AM   #2557
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i do not have a camera at this time. i took a dremmel and cut 2mm off front bulkhead behind arm and then add 2mm shim in front of arm and behind front sway bar
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Old 02-03-2009, 10:44 AM   #2558
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i do not have a camera at this time. i took a dremmel and cut 2mm off front bulkhead behind arm and then add 2mm shim in front of arm and behind front sway bar
So you did this to the lower front arm? This would also then effect the total caster, and shorten your wheel base. Am I assuming right?
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Old 02-03-2009, 11:49 AM   #2559
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i do not have a camera at this time. i took a dremmel and cut 2mm off front bulkhead behind arm and then add 2mm shim in front of arm and behind front sway bar
You shouldn't cut the bulkhead, there's not enough meat there. You are weakening the bulkhead too much. I cut 2,5 mm off the front a-arm.
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Old 02-03-2009, 12:03 PM   #2560
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You shouldn't cut the bulkhead, there's not enough meat there. You are weakening the bulkhead too much. I cut 2,5 mm off the front a-arm.

Does the car become unstable and did you have to make big changes to your set up?
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Old 02-03-2009, 12:03 PM   #2561
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So you did this to the lower front arm? This would also then effect the total caster, and shorten your wheel base. Am I assuming right?
Sure, you need to change the caster clips accordingly. And shortening the wheel base is exactly why this is done, although just as Stefan explained, most people cut the arms instead.
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Old 02-03-2009, 12:03 PM   #2562
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Originally Posted by asw7576 View Post
I saw you are already using sanwa m11 radio.

why don't you buy sanwa servos ?

I'm using sanwa vx and vz in mtx4 and mrx4r respectively.

( becareful people ...., vx and vz are not digital servos, thus they are not suitable for futaba hrs receiver !! ).
From what I see around here, the Orion servos are great, especially for that price.

I have two Sanwa WRX on which I just changed the wires. After seeing how they are built, they are waaay overpriced.
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Old 02-03-2009, 12:05 PM   #2563
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Sure, you need to change the caster clips accordingly. And shortening the wheel base is exactly why this is done, although just as Stefan explained, most people cut the arms instead.
..and if you insist on having the full range of caster adjustment (which you don't need) you simply cut the upper arm as well....
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Old 02-03-2009, 12:08 PM   #2564
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Does the car become unstable and did you have to make big changes to your set up?
No, the car is as stable as before, but it turn much better. I use the short wheelbase on tight tracks.
It's a cool mod, since it can be built back in a few minutes
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Old 02-03-2009, 12:17 PM   #2565
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Sure, you need to change the caster clips accordingly. And shortening the wheel base is exactly why this is done, although just as Stefan explained, most people cut the arms instead.
But then if you wanted the full range of adjustments on caster, you would have to grind the bulkhead or top arm to match...
I see how things are heading now. Pretty cool
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