JRX Pro SE runner build

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lavigna
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Re: JRX Pro SE runner build

Post by lavigna » Thu May 25, 2017 5:32 am

Great build. I love those shocks on it! they look right at home.

sixdub
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Re: JRX Pro SE runner build

Post by sixdub » Tue May 30, 2017 12:43 am

Took the buggy to the track today for a little shakedown. The track was muddy in parts and dusty in others, basically really poor conditions for running. Who cares, still fun.

When I could get traction, the buggy handled great and had good power from the Dynamite Tazer Twin motor. Jumping behavior was very nice and I'll probably add a little weight to the nose to make it perfect.

Then, on a light tumble, the front bulkhead let go.... til next time.

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And a crap video. Had to prop the phone on the fence, since nobody wanted to come play with me today.

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Lonestar
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Re: JRX Pro SE runner build

Post by Lonestar » Tue May 30, 2017 10:04 am

sorry to read about the BH :(

I can only recommend you loosen the slipper a bit with such low grip. Or feather throttle the car a bit more. I understand grip was crap but this is out of shape all the time it accelerates...

will read the next adventures with interest :)
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LosiXXkid
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Re: JRX Pro SE runner build

Post by LosiXXkid » Tue May 30, 2017 12:27 pm

Lonestar wrote:
Tue May 30, 2017 10:04 am
sorry to read about the BH :(
It's great to see it up and running 8) but yeah, what a shame about that front bulkhead! Hopefully you have a spare on hand?
~I'm a lot older now than I was then and wish that I knew then what I know now~

sixdub
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Re: JRX Pro SE runner build

Post by sixdub » Tue May 30, 2017 3:14 pm

I've got a NIP white bulkhead and Trinity brace I'll install for the next round.

I was so anxious to run the car that I didn't spend the time to adjust the ESC, slipper, diff, or select the right tires. :D . And I had my rere Worlds and RB6 that I wanted to run in the small window of time I had available. Next time, the focus will be on one buggy at a time!
But, I have that restored Ultima RB Type-R that needs to be run..... :mrgreen:
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clm
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Re: JRX Pro SE runner build

Post by clm » Tue May 30, 2017 7:01 pm

Looks like we are almost in need of having someone come up with a repro front bulkhead like OldRC did with the XX front bulkhead :/
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RCveteran
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Re: JRX Pro SE runner build

Post by RCveteran » Wed May 31, 2017 12:46 am

sixdub wrote:
Tue May 30, 2017 3:14 pm
I've got a NIP white bulkhead and Trinity brace I'll install for the next round.

I was so anxious to run the car that I didn't spend the time to adjust the ESC, slipper, diff, or select the right tires. :D . And I had my rere Worlds and RB6 that I wanted to run in the small window of time I had available. Next time, the focus will be on one buggy at a time!
But, I have that restored Ultima RB Type-R that needs to be run..... :mrgreen:
I've fallen into this too as I don't get to track often so I bring a few cars. Lately though realized I don't give each enough then when I am there. I too am trying to focus on one each time. But I'll probably fail.

That said when I was running X2's more regularly I never broke a front bulkhead which of course means I will next time.

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Re: JRX Pro SE runner build

Post by matt1ptkn » Wed May 31, 2017 12:33 pm

I too, try to spend time with each of my buggies and trucks while at the track. It usually just causes confusion and anxiety for me. Lately I have been trying to focus on just one of each. But then I feel that I'm neglecting the others. :roll:

I'm surprised by all the issues you've had with the front bulkhead. I've been running Jrx style vehicles since '89 and I don't think I've had this much trouble. I've wondered why no one has really tried making new bulkheads. I remember someone selling printed ones on eBay a while back, but they were still expensive and didn't stay up for sale long.
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LosiXXkid
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Re: JRX Pro SE runner build

Post by LosiXXkid » Wed May 31, 2017 1:05 pm

matt1ptkn wrote:
Wed May 31, 2017 12:33 pm
I too, try to spend time with each of my buggies and trucks while at the track. It usually just causes confusion and anxiety for me. Lately I have been trying to focus on just one of each. But then I feel that I'm neglecting the others. :roll:

I'm surprised by all the issues you've had with the front bulkhead. I've been running Jrx style vehicles since '89 and I don't think I've had this much trouble. I've wondered why no one has really tried making new bulkheads. I remember someone selling printed ones on eBay a while back, but they were still expensive and didn't stay up for sale long.
The white one should hold up much better!
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sixdub
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Re: JRX Pro SE runner build

Post by sixdub » Sun Jun 04, 2017 9:26 pm

The NIP bulkhead that I built the car with definately had something strange going on. It was very brittle right out of the pack. I wonder if it spent too long hanging in the sun at a hobby shop during its life.

So, put in a new white bulkhead and a Trinity brace and added a little weight to the nose. I took only this buggy to practice this time so I could focus on the setup. I backed the slipper way off and during bench testing I noted that the Dynamite Tazer does not have as much punch as my other motors. I played around with the punch setting, but never got it "right". I may put a traditional motor and esc in it so I can have adjustable timing and drag brake.

Track was dry (at first), so traction was limited, but a pair of Jconcepts 3Ds helped a bunch. I got a full pack through with no problems. A local fast guy (who was born the same year as the Pro SE) drove the buggy and liked the way it handled. He wants to borrow it to try to beat the B6s and 22s at the next race.

Halfway through the second pack, I had a big crash and broke a steering bellcrank. Then a biblical storm rolled in... so the day was done.

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Kyosho, JRX-2, Gold Tub Fan

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matt1ptkn
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Re: JRX Pro SE runner build

Post by matt1ptkn » Mon Jun 05, 2017 12:25 pm

sixdub wrote:
Sun Jun 04, 2017 9:26 pm

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My biggest question after reading your update is how in the world, did you trim the front of the body so perfectly around the front brace? :shock: Nice work!
Matt

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sixdub
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Re: JRX Pro SE runner build

Post by sixdub » Tue Jun 06, 2017 9:43 pm

matt1ptkn wrote:
Mon Jun 05, 2017 12:25 pm

My biggest question after reading your update is how in the world, did you trim the front of the body so perfectly around the front brace? :shock: Nice work!
LOL, thanks! :mrgreen:

I like to cut before painting so I can see whats going on. That and a sharp razor ... and a couple beers to steady the hand. :wink:
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mytimac
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Re: JRX Pro SE runner build

Post by mytimac » Tue Jun 06, 2017 9:55 pm

Wow, you broke one of my rigid arms? But then I noticed you are not running a servo saver?! I have crashed mine a bunch, even let my noobie wife drive and crash into things. But I run a servo saver like everyone did back in the day.

That is still crazy, that must have been a good crash.

Send me a message and I will send you a new one. Reward for the first reported person to break one been making them for years and you are the first.

BIG EDIT:

This might be a great time to do a anew version that adds bracing between the L. Kind of like adding one of these that people ran back in the old days to prevent this issue. http://sabulatech.com/storefront/index. ... er=product Of course doing that transfers the energy some place else, like maybe your servo.
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sixdub
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Re: JRX Pro SE runner build

Post by sixdub » Tue Jun 06, 2017 10:16 pm

Hi Dan! Funny, I just sent you a PM. :lol: I was just about to order another set or 2, but had a question for you before I do.
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Lonestar
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Re: JRX Pro SE runner build

Post by Lonestar » Wed Jun 07, 2017 7:38 am

OMG what a rain :shock:

Dan, I need to pick some parts for my LXT runner... didn't know you were redoing some!
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