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Old 11-12-2010, 09:36 PM   #1576
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Originally Posted by williamw View Post
Can you tell me why?
1. cheap alluminium pulley : the teeth ( V grove ), they become sharp or pointed easy because they are made from cheap materials. When the pulley's v grove become sharp, the belt usually lost its teeth too, .... due to sharpness and skipping belt.

2. cheap alluminium pulleys also have problem with precision : imperfect depth and the imperfect pitch.

3. the original plastic pulleys actually last longer than cheap alumunium pulleys, and this is secret : plastic = lighter weight = lighter rotating mass.
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Old 11-13-2010, 11:12 AM   #1577
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Thanks!
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Old 11-15-2010, 07:07 PM   #1578
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Use the stock setup 9 out of 10 it's right on the money
+1 Stock will get you in the ball park....
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Old 11-15-2010, 11:49 PM   #1579
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Anyone already use 3Racing 6mm chassis ?

Yes, 6 mm !!

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Old 11-16-2010, 09:34 AM   #1580
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Originally Posted by nitronutzzz View Post
hey guys. Got a generalized question here. Been driving Rc for 7 yrs now and finally decided to get 1:8 scale onroad car(MRX-4X). I have yet to put it together. This one has a front one way and solid axle in the back. I guess that's pretty univeral. I have owned and drivien all sorts of RC vehicles (I currently run a Kyosho RRR WC with a front soild spool and a Kyosho St-RR truggy)but given the size and power of 1:8 onroad I just wondered how does it drive?

I know it sound like a vague question since prolly no 2 cars drives the same..but just need a general idea. I had a serpent IMPACT once with front one way/solid rear axle. I couldnt use brakes at all and it was all about throttle control and carrying enuf corner speed without spinning out. Does the same idea apply to 1:8 scale onroad? I mean I drive my RRR I have to stay on da gas to get it to turn and I use brakes quite often to get weight transfer to front..But with the MRX3X I am thinking I have to drive it like my Impact..am I right? Any insight would be appreciated. I hate to look like a jackass the first time I bust out the new ride..LOL

A short video of our parking lot track
http://www.youtube.com/watch?v=x32UZqNPxBk
When I ran my MRX4X there in Louisville during the summer I had to adjust the brakes so that the rear would not lock up under full braking. There just wasn't enough traction to run the brakes as I would normally. But it was still fun and the sound bouncing off the storefronts was pretty cool. Also you might try 32 rears. I had 35's on the rear and 35's on the front but the rear was still pretty loose. Looking forward to next summer to run some more in Louisville. We have a few surprises for next year.
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Old 11-16-2010, 09:37 AM   #1581
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Hey guys, I have some mrx4x parts and two new chassis plates on eBay cheap if anyone is looking. There pretty cheap being the auction started at.99 and have a day and a half left to go.
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Old 11-17-2010, 07:37 PM   #1582
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Anyone looking for a brand new kit I have 1 available $320 shipped U.S. Only
International at buyers cost
will be away attending the U.S. Open but will have access thru my BB
Car is sold
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Old 11-20-2010, 03:58 PM   #1583
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Default MRX 4X parts wanted

Hello race fans!

I just purchased a new MRX 4X and I'd like to stock up on spare parts. If anyone has spare parts for the MRX 4X please let me know.

Thanks,

Jim Frahm
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Old 11-20-2010, 06:11 PM   #1584
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Originally Posted by Catch-Air View Post
Hello race fans!

I just purchased a new MRX 4X and I'd like to stock up on spare parts. If anyone has spare parts for the MRX 4X please let me know.

Thanks,

Jim Frahm
Jim,
you have a PM. Let me know if you are interested. Several optional parts from YBSLOW are included.
Roger
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Old 11-20-2010, 08:24 PM   #1585
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Originally Posted by Catch-Air View Post
Hello race fans!

I just purchased a new MRX 4X and I'd like to stock up on spare parts. If anyone has spare parts for the MRX 4X please let me know.

Thanks,

Jim Frahm
MUGEN MRX-4X CLUTCH PARTS CHEAP CHEAP

NOW THATS A DEAL!...I ALSO HAVE SETS ON NEW AND JUST TRUED JACO TIRES, NEWER RIM STYLE...LMK ILL LET IT ALL GO CHEAP

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Old 11-25-2010, 08:56 PM   #1586
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Everybody is jumping on the new 5, but due to budget and being away from gas for awhile, I gotten a relatively new 4x.

Any recommendations for a bodyshell and if you have nib parts to let go cheap, do drop me a pm. Basically arms and belts are essential.
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Old 11-26-2010, 09:22 AM   #1587
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Originally Posted by Arahawak View Post
Everybody is jumping on the new 5, but due to budget and being away from gas for awhile, I gotten a relatively new 4x.

Any recommendations for a bodyshell and if you have nib parts to let go cheap, do drop me a pm. Basically arms and belts are essential.
Proto Form 909 has been good for the past year. Mount 12 - 20mm in front of the bumper to suit your driving style. Based on the track also tall rear body support arms (you can use Kyoso or YBSlow aluminum).

I'm not making the change either, based on cost and I'm just starting to get comfortable with the car after being out of 1/8 scale for many years.

For parts, watch here and E-bay as I've picked up parts averaging around $2.50/pk so it helps on the budget as well.
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Old 12-03-2010, 06:09 AM   #1588
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may i know if mrx4 up right and rear body mount can be fix to mrx3..thanks
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Old 12-03-2010, 10:46 AM   #1589
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may i know if mrx4 up right and rear body mount can be fix to mrx3..thanks
My guess is no, as there was a chassis width change between the two.
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Old 12-03-2010, 11:20 AM   #1590
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My guess is no, as there was a chassis width change between the two.
But not the width of the wheels and so the distance between both uprights.

My gues is that it would fit but there is a chance that some small modifications are needed
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