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Old 01-16-2011, 11:54 PM   #1
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Default Ofna MBX Ultra Comp

ok new question....does any body have any setup sheets or reccomendations on shock oil and diff fluids?...thanks guys
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Old 01-17-2011, 12:00 AM   #2
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nitrohouse should have them .
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Old 01-17-2011, 12:08 AM   #3
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nitrohouse should have them .
have what?....what am i looking for?....what mounts will work?...the only ones that they say are FOR this buggy are the RTR mounts...which i already have
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Old 01-17-2011, 12:15 AM   #4
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have what?....what am i looking for?....what mounts will work?...the only ones that they say are FOR this buggy are the RTR mounts...which i already have


i looked at nitrohouse and clicked on the car parts for the ofna mbx ultra comp and heres the only ones i saw.











maybe the hyper 7 or the other ofna buggy models that have non pullstart mounts will fit .
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Old 01-17-2011, 12:19 AM   #5
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i looked at nitrohouse and clicked on the car parts for the ofna mbx ultra comp and heres the only ones i saw.










maybe the hyper 7 or the other ofna buggy models that have non pullstart mounts will fit .
yeah...dang $47 for the NON RTR mounts...thats insane..yah thats why i posted here to see if anybody knows what will work...i know people arent paying $47 to mount a NON pullstart engine in a mbx ultra comp.
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Old 01-17-2011, 01:32 AM   #6
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The Ultra Comp. I used to have one of these. The first 8 scale i had. That thing was dam near bullet proof. I don't remember ever breaking anything on it and I bashed it on bmx tracks.

No starter box for me though. I wasn't that advanced yet. It was all pull start. old school baby.

I made this a truggy by putting on larger wheels and changing the gearing before truggies existed. Back then truggy was a modification.
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Old 01-17-2011, 03:44 AM   #7
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http://www.nitrohouse.com/p12271/ENG...7cc9cc3ea0aadf

http://www.amainhobbies.com/product_...d-Engine-Mount

http://www3.towerhobbies.com/cgi-bin...?&I=LXLMY2&P=7

If you can, measure the distance between the 2 chassis mounting holes on one of the stock mounts. I have a Jammin X2 and X1 and the distance I got is 0.944" or 24mm.

The stock mount for the Ultra buggies is listed to also work on the X1 so the above mounts should work. They probably don't list the Ultra buggies compatible with the above mounts because it lowers the engine too much and hits the chassis so you may need to add some shims between the mount and the engine.
http://www.amainhobbies.com/product_...e-Mounting-Kit
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Old 01-17-2011, 10:32 AM   #8
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these two parts work for RTR engines in a comp,

40674 and 10040

The 10040 is a large diameter flywheel for rtr engines, since the pull start hangs lower than the engine you cannot put on non pull start mounts. so look at your flywheel and measure it. Or you can look at it on a table. when you put it on the table the engine should be tilded alot because the flywheel is large, if it's close to sitting flat on the table then you have a non- pull start flywheel and need to go to the biggier dia. flywheel 10040.
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Old 01-17-2011, 12:47 PM   #9
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it has a small flywheel and it came with the ez start not the pullstart but it sits just as low....im not worried about mounting the motor that came with it....i just need a normal set of NON RTR/PULLSTART mounts that will work...i will measure to see if the other mounts mentioned will work...thanks guys....its weird to think this buggy was meant to run pullstart ect. only and not a bump box
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Old 01-17-2011, 09:52 PM   #10
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Quote:
Originally Posted by drummin89 View Post
If you can, measure the distance between the 2 chassis mounting holes on one of the stock mounts. I have a Jammin X2 and X1 and the distance I got is 0.944" or 24mm.
are you sure you got these measurements...24mm? im getting a measurement of 2mm or 1.7 inches
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Old 01-18-2011, 02:17 AM   #11
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yeah

1 millimeter = 0.0393700787"
24mm = 0.9448818888"
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Old 01-18-2011, 10:05 AM   #12
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You said it had an e-z start or electric starter then there's your problem, the engine and motor mount have a spacer between them to have the flywheel away from the chassis line, that spacers brings it up 4mm. So I can see why the flywheel would not tought the doughnut on the box.
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Old 01-18-2011, 11:59 AM   #13
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Quote:
Originally Posted by -R2- View Post
You said it had an e-z start or electric starter then there's your problem, the engine and motor mount have a spacer between them to have the flywheel away from the chassis line, that spacers brings it up 4mm. So I can see why the flywheel would not tought the doughnut on the box.
sorry i misread your post and it didnt make sense...but after reading it 10x...it makes sense...i just need a bigger flywheel and run the RTR mounts will less shims....if i take out the 2 shims on the engine mounts, they will not let the motor sit flush on the mount...so i guess i have to run the 1 shim and bigger flywheel....sorry for the smart remarks guys...it was frustrating the hell out of me
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Old 01-18-2011, 12:56 PM   #14
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last post edited ^^^^^
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Old 01-18-2011, 05:21 PM   #15
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new question!...check first post ^^^^^
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