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Old 08-01-2013, 10:56 PM   #1
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Default Ultra 4 bomber

I have been running my rock bouncer at our local ultra 4 races with very good results but its time for something new so I decided to build this. I haven't decided what axles to use yet but here is a mockup with ax10 axles on it. These are pictures from the last week of the build.













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Old 08-02-2013, 09:47 AM   #2
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Default Re: Ultra 4 bomber

I'm liking the overall look.
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Old 08-02-2013, 09:53 AM   #3
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Default Re: Ultra 4 bomber

very cool lines.
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Old 08-02-2013, 10:22 AM   #4
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Default Re: Ultra 4 bomber

Lots of triangulation.
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Old 08-02-2013, 12:00 PM   #5
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Default Re: Ultra 4 bomber

I'm not finished with the chassis. I still need to put some tube around the rear shocks and put some tube on the front to protect the servo and braze some nuts on the chassis for panels.
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Old 08-02-2013, 08:13 PM   #6
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Default Re: Ultra 4 bomber

Front links on sitting at 13.75 wheelbase
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Old 08-03-2013, 09:40 PM   #7
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Default Re: Ultra 4 bomber

Rear sway bar on.



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Old 08-04-2013, 04:33 PM   #8
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Default Re: Ultra 4 bomber

I'm using a radio shak project box for my fuel cell/electronics box.



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Old 08-05-2013, 12:01 AM   #9
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Default Re: Ultra 4 bomber

It's a roller. Still have to make pannels, extend rear driveline, extend servo wire, paint chassis and interior.












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Old 08-05-2013, 01:18 AM   #10
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Default Re: Ultra 4 bomber

digging it....
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Old 08-05-2013, 03:59 PM   #11
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Default Re: Ultra 4 bomber

Looks good...... Weight of chassis alone?
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Old 08-05-2013, 06:02 PM   #12
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Default Re: Ultra 4 bomber

Chassis weight. 13.28oz-376.5g
Chassis length 13.75"
Chassis height top secret
Chassis width top secret
Just kidding to lazy to grab a tape. Does anybody know if soaking this brake line chassis in distiled vinager would clean it up? Kinda want a bare metal look but don't want the gold brazed joints.

Last edited by tuner; 08-05-2013 at 06:12 PM.
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Old 08-13-2013, 10:15 PM   #13
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Default Re: Ultra 4 bomber

Almost got it done for the race this weekend. I sprayed it with rc window tint to make the brake line darker but still visable. Now it's time for the interior and panels.





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Old 08-15-2013, 12:41 AM   #14
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Default Re: Ultra 4 bomber

I made some knuckle weights and I'm starting on the panels. The weights weigh about 4.5 oz each.







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Old 08-15-2013, 08:33 AM   #15
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Default Re: Ultra 4 bomber

Good luck at the race this weekend.Sweet build
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Old 08-15-2013, 11:06 PM   #16
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Default Re: Ultra 4 bomber

All ready for the race this weekend. I drove it for a bit in the front yard and it felt great except for the toe out so I fixed that by shaving some threads off of the chaotic steering link. The pannels are made out of a 6"x18" aluminum sheet. I decorated it with some sponser stickers I had and threw some seats in there too.




Last edited by tuner; 08-15-2013 at 11:13 PM.
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Old 08-16-2013, 10:48 AM   #17
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Default Re: Ultra 4 bomber

Super sweet rig. Is that the new proline fuel cell?
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Old 08-16-2013, 01:06 PM   #18
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Default Re: Ultra 4 bomber

Quote:
Originally Posted by JacksonTrix View Post
Super sweet rig. Is that the new proline fuel cell?
Yes it is. It comes with the fuel pump, hoses and noz bottle.
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Old 08-18-2013, 07:11 PM   #19
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Default Re: Ultra 4 bomber

Well the rig worked well this weekend. I kinda played it safe because I didn't know what would break but I still pulled a 4 th place next to some awesome drivers. I need to change some things like get some different rims to narrow it up a little and tuck the knuckle weights up out of the way a little more. I also need to put some heaver weight oil in the front shocks like 40 or 50 and beef up the front bumper because it bent a little.






Last edited by tuner; 08-18-2013 at 08:10 PM.
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Old 08-18-2013, 07:23 PM   #20
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Default Re: Ultra 4 bomber

Oh yeah my fuel cell lid came off during the race and a sway bar arm broke so I have to fix those.
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