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  #101  
Old 30-03-2012
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marco NL marco NL is offline
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hi Dave

you have a photo of the new steering on yor car.
am wondering how it looks.
My TRF502 is almost ready I'm going to use std steering first.
I still waiting for rudebits weight set and the x-gear springs.
I post a picture when is ready.

question setup
Dave do yo have a good setup for clay???

Thanks Marco
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  #102  
Old 30-03-2012
trowta trowta is offline
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hey Dave,

I have done some testing and argee with you in the most part, the car feels different and it does give more steering thru the entry and middle, but something still feels wrong, anyways I have reverted back the spacing the alloy original one 4mm and it is much more consistant.
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  #103  
Old 21-08-2012
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I just built my 502X and found the quality to be just as good as my 201. Ok, the shocks and turn buckles are not the premium versions but they are still excellent quality!

I purchased many options as well and fitted them during the build.

I'm trying to figure out how the front shocks "bind", as many people discuss. I have mounted them in the stock position and the movement is free and smooth. Yes I agree the front shock tower is not at the same angle as the front kick up, but this does not cause a "bind". The shocks still sit at a similar angle to the kick up. The only way they would bind would be if you over tightened the plastic nut that holds them to the top shock mount, which would crush the plastic bushing the shock that shock cap rides on.

War paint is yet to be applied and all new LRP/Reedy electrics are on the way including an Sanwa M11X.

I choose the 502X after much reading of these threads, for one reason alone, sealed diffs and shaft drive. I ran Yokomos back in the 1990s and I was forever striping down diffs due to dust contamination! Now I have kids and less time, rebuilding cars after every race meet is not how I want to spend a lot of my time.

Further, Lee Martin has had some recent successes with the 502X and the recent mods from TRF and Rudebits show the car is being developed. can't wait to race it!
Attached Images
File Type: jpg TRF 502X (2 of 5).jpg (294.0 KB, 79 views)
File Type: jpg TRF 502X (3 of 5).jpg (259.4 KB, 97 views)
File Type: jpg TRF 502X (4 of 5).jpg (392.5 KB, 87 views)
File Type: jpg TRF 502X (5 of 5).jpg (436.4 KB, 65 views)
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  #104  
Old 29-08-2012
kidcongo kidcongo is offline
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Quote:
Originally Posted by Aussie Top Force View Post
I just built my 502X and found the quality to be just as good as my 201. Ok, the shocks and turn buckles are not the premium versions but they are still excellent quality!

I purchased many options as well and fitted them during the build.

I'm trying to figure out how the front shocks "bind", as many people discuss. I have mounted them in the stock position and the movement is free and smooth. Yes I agree the front shock tower is not at the same angle as the front kick up, but this does not cause a "bind". The shocks still sit at a similar angle to the kick up. The only way they would bind would be if you over tightened the plastic nut that holds them to the top shock mount, which would crush the plastic bushing the shock that shock cap rides on.
!
When I first ran my 502X the shocks did not bind either, however after the top plastic bushings lose their shine and get a bit rough or gritty they can bind. I found this happened with mine. If you watch the movement of the shock with the stock set-up, as you compress the front arms the shocks both rotate in relation to the top bushing, while at the same time twisting around the bushing ball. If you install one of the carbon spacers that offsets the shock tower forward, it eliminates the twisting motion on the plastic bushing and the shocks are much smoother as they are simply turning around the bushing, not twisting as well (if that makes sense to you).

Anyways.....the steering upgrade kit is a "must" in my opinion as well (I see you already have that). All is all the 502X has been great for me so far. Very durable, more so than the Durangos or B44's at my track from my observation. Even though the car looks delicate it's tough.

Last edited by kidcongo; 29-08-2012 at 04:30 AM. Reason: spelling
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  #105  
Old 30-08-2012
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Thanks for that info. Yes, I understand what you mean in relation to the twisting. I did notice it that, but being new, as you said they are smooth.

I have ordered the spacers from Frederik, but they are yet to arrive. I did note that Lee Martin's car is running them, so I thought best to order them from the beginning!

SInce positing the car is nearly complete with Rudebits Camberlinks:

http://www.tamiyaclub.com/showroom_m...15790&id=33946

I hope to get the car to a track in a few weeks.
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  #106  
Old 04-12-2012
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After testing the TRF502X upgrade kit i can say the car is now really a top level 4WD off-roader.

Will the TRF511 with upgrade set be as fast as the upgraded TRF502X?

Still hoping for a (soon) release of gear diffs for the TRF502X and a more angled shock tower attachment.


Quote:
Originally Posted by Chris View Post
- the shock tower attachment on the front upper gearbox cover does have a wrong angle. This should be the same angle as the front kick-up. The result is binding of the front shocks when mounted according the manual. It can be solved by use of a double shock tower, but the shocks won't be square with the lower arms. The TRF 511 doesn't have this problem.

-The slots in the diff joints are too large, in this way dust can easily enter the "sealed" gearbox. To prevent this i used a piece of heat shrink to cover the slots. (only covering the slot that's inside the gearbox)
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  #107  
Old 06-12-2012
kidcongo kidcongo is offline
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My first niight out with the 502X upgrade chassis I took 1st in one of the heats, and 3rd in the A-Main, which for me was quite a step-up. Not sure if it was the improvements to the 502X chassis or just luck, but the car seemed much more connected and responsive with the upgrade set. I found I was thinking at lots less about driving the car, and doing better as a result.
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  #108  
Old 06-12-2012
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Default Up grade set

I agree with others, the upgrade set works a treat!

However, here is something that needs improving. the rear sway bat mounts are too exposed and easily moved as the screws don't tighten well.

This one was ripped out by another vehicle rear ending the 502X.

I've PM's Fredrik to see if he can find a solution
Attached Images
File Type: jpg TRF 502X (2 of 1).jpg (290.9 KB, 98 views)
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  #109  
Old 06-12-2012
taomo taomo is offline
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Quote:
Originally Posted by Aussie Top Force View Post
I agree with others, the upgrade set works a treat!

However, here is something that needs improving. the rear sway bat mounts are too exposed and easily moved as the screws don't tighten well.

This one was ripped out by another vehicle rear ending the 502X.

I've PM's Fredrik to see if he can find a solution
I'm also interested in a solution to this problem.
The upgrade set works fine for me too but, with the new rear shock tower, the wing touch the rear tires in fast corners

Regards
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  #110  
Old 17-08-2013
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Default gear diffs :)

Gear diffs for the TRF502X?

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  #111  
Old 17-08-2013
taomo taomo is offline
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Quote:
Originally Posted by Chris View Post
Gear diffs for the TRF502X:

Seriously??!! where did you find this info? image is from a touring car. I want gear diffs on my 502x (and now, in my new 201XR too )

Best regards
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  #112  
Old 18-08-2013
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Default Gear Diffs and Big Bores

Wow, gear diffs would be interesting, as long as they were built tuff enough for off road!

Fitted big bores to my 502X this afternoon. They are nice and smooth. The A good thing is that the springs are offset far enough so they don't rub on the shock body. That was an issue with both the standard shocks and the H/L shocks. Thus if you are thinking of upgrading skip the H/L dampers and go straight for the big bores. The BB's come with two sets of pistons - 1.7 and 1.6, so no need to buy the separate piston set up front. Although you do need to purchase the separate spring set. I used the 1.7 pistons to start with. Time to get back to the track!
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  #113  
Old 18-08-2013
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It looks that the TB-04 pro uses the same gear cases as the TB-03. So most likely the gear diffs won't fit the TRF502X
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  #114  
Old 10-03-2015
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Coming soon:

SRP TRF502X shorty chassis
7.5 mm longer wheelbase
compatible with 2mm-thick Carbon Fiber Servo Mount (1-sided attachment)
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  #115  
Old 10-03-2015
rcyogi1 rcyogi1 is offline
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AWESOME!!!!
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  #116  
Old 11-03-2015
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Quote:
Originally Posted by Chris View Post
Coming soon:

SRP TRF502X shorty chassis
7.5 mm longer wheelbase
compatible with 2mm-thick Carbon Fiber Servo Mount (1-sided attachment)
Bad Ass!!!! Can't wait !! also Pm'd you as well
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  #117  
Old 22-03-2015
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Quote:
Originally Posted by Chris View Post
Coming soon:

SRP TRF502X shorty chassis
7.5 mm longer wheelbase
compatible with 2mm-thick Carbon Fiber Servo Mount (1-sided attachment)

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  #118  
Old 31-03-2015
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Default Still a Competitive Car

I ran my 502 in 4wd Stock (17.5T Blinky) this last weekend at the Castlehill Pro-Am, Sydney. It is also the 1st race of the NSW Club Series.

I managed to qualify 7th in a field of 20 or so runners and finished up 8th. Not a bad effort I thought considering my last race was September last year at the Vintage Festival and that I've never run in the class before. I managed to improve my times over each of the qualifying runs. I went from 12 to 7th in the 2nd Q and held onto 7th in the final Q, but significant improved my time.

I borrowed an LRP X12 motor from a friend, swapped in a 69 tooth spur and used a 29 tooth pinion. The car was pretty good on the loose track, plenty of grip on line, very loose offline. I was running saddle packs - Fredericks carbon fibre cradles which bring the packs closer to the centre of the car.

My goal is to run each of the 4 Club Series events in this class and improve as I go.
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  #119  
Old 31-03-2015
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This is my re-chassis on the 502, all parts taken from the original car, well not quite I,ve used the floating servo mount from the 503.
The front centre drive shaft is steel, allows the servo to get closer to the centre of the chassis. Milled pocket for the lipo to sit in and one under the motor, hopefully running it this Sunday on astro

Ken
Attached Images
File Type: jpg P1020434.JPG (994.4 KB, 55 views)
File Type: jpg P1020435.JPG (1.02 MB, 83 views)
File Type: jpg P1020436.JPG (1.03 MB, 62 views)
File Type: jpg P1020437.JPG (1.04 MB, 60 views)
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  #120  
Old 02-04-2015
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Looks neat!

That speedo it,s a beast!
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