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-   -   Tamiya Durga DB01 EP Buggy (A cheaper 501X?) (http://www.oople.com/forums/showthread.php?t=5482)

mog ruith 05-06-2008 03:42 PM

well jimmy if you had those pic pls post here
anyway i got myself fluorine coated balls and carbon reinforced m parts
should get that carbon reinforced a parts too if i had known

antnee 05-06-2008 05:57 PM

I realised earlier, in my big crash, it also broke the top of the shock, the cap bit, :( Ive glued it as it was only a little broken so I'll see how that goes!

antnee 06-06-2008 08:03 PM

:mad: Not doing very well with this durga :mad:

Second race, 6 laps it, bit of a griding noise coming from the rear take it apart to find
http://i55.photobucket.com/albums/g1...DSC00669-1.jpg
Shreded rear diff:mad:

not happy :mad: as I thought the diff's were fine, but it was obviously not tight enough as the metal rings are still firmly on the plastic drives

jimmy 06-06-2008 11:18 PM

Animal! :o You should always check the diffs, get into the habit of just twisting a wheel round every time you hold the car. The diffs on these cars (apart from that naff plastic holder) are really very good - but like any diff they need looking after and especially when new they will loosen.

mog ruith 07-06-2008 02:38 AM

maybe who knows 3 or yeah racing will come out with an alu diff :thumbsup:

DCM 07-06-2008 09:05 AM

it ISN'T the diff, but if you are having a diff that is killing itself, then replace at least the diff nut, dip the screw in some threadlock too. You can upgrade to the steel diff's, but I just done a whole national and two club meets on a 5.5 sintered motor and not had an issue, I just regularly check diff tension. If you don't, you will stll melt pulleys with the steel diff outdrives.

antnee 07-06-2008 10:33 PM

I thought it was all ok, untill it just started going slower and slower

Ben.C 09-06-2008 12:32 PM

Hi all,

Was wondering if any one has good setup tips on racing the DB01 on carpet (smooth surface).

My DB01 simply doesn't want to turn. As its a Tamiya race, we have to us the Tamiya tires. :bored:

Any input is welcome. Thanks in advance.

jimmy 09-06-2008 12:42 PM

limit the rear droop, that'll stop it hanging on for so long and allow the car to turn.

sosidge 09-06-2008 01:28 PM

Quote:

Originally Posted by Ben.C (Post 131668)
Hi all,

Was wondering if any one has good setup tips on racing the DB01 on carpet (smooth surface).

My DB01 simply doesn't want to turn. As its a Tamiya race, we have to us the Tamiya tires. :bored:

Any input is welcome. Thanks in advance.

Try my setup that I posted in the setup thread. I used that on a track where all but one of the corner apexes was on carpet and it worked pretty well for me.

The key change for consistency on high grip in my book is putting the rear shocks on the outer hole of the wishbone. Limiting droop makes a difference but also makes the car less stable on the bumps, personally I prefer to get the wheel rates stiff enough to limit roll without compromising the bump handling.

DCM 09-06-2008 03:36 PM

I am finding at the moment, I am putting limiters in the 501X shocks so they are going back to giving the same amount of droop as the kit shocks, the BIG droop seems to hinder more than help in corner performance.

Still got a nasty rear kick over sharp bumps though.... going to have to invest in pistons me thinks

antnee 10-06-2008 01:17 PM

Any shops in the UK stock the diff pulleys?

Ben.C 10-06-2008 01:33 PM

Quote:

Originally Posted by jimmy (Post 131674)
limit the rear droop, that'll stop it hanging on for so long and allow the car to turn.

Quote:

Originally Posted by sosidge (Post 131692)
Try my setup that I posted in the setup thread. I used that on a track where all but one of the corner apexes was on carpet and it worked pretty well for me.

The key change for consistency on high grip in my book is putting the rear shocks on the outer hole of the wishbone. Limiting droop makes a difference but also makes the car less stable on the bumps, personally I prefer to get the wheel rates stiff enough to limit roll without compromising the bump handling.


Thanks for the advice. Will try out.!! :thumbsup:

ricky1981 10-06-2008 06:59 PM

Just got by Durga kit, making the differentials and the manual says "be careful not to overtighten" but I've also heard there are problems from having them loose so what "tightness" should I be aiming for (I imagine I will have to retighten after a few runs).

Realise it's hard to describe but should I just tighten as much as I can by hand using a small allen key or will that be too much?

budgio 10-06-2008 07:43 PM

Quote:

Originally Posted by antnee (Post 132137)
Any shops in the UK stock the diff pulleys?

Google is your friend :)

http://www.google.co.uk/products?hl=...&um=1&ie=UTF-8

jimmy 10-06-2008 08:01 PM

I didn't try THAT hard but I couldn't see the diff pulley on demon? the one way pulley is different, I do have a spare of that but not the diff pulley.

sosidge 10-06-2008 09:18 PM

Quote:

Originally Posted by ricky1981 (Post 132262)
Just got by Durga kit, making the differentials and the manual says "be careful not to overtighten" but I've also heard there are problems from having them loose so what "tightness" should I be aiming for (I imagine I will have to retighten after a few runs).

Realise it's hard to describe but should I just tighten as much as I can by hand using a small allen key or will that be too much?

Hand tight (normal hands, not builders hands!) on initial assembly, check once in the car, recheck after a couple of runs.

Basic setting is not to slip easily (hold the spur and one wheel and try to turn the other), and the diff action should be smooth but with a little resistance, not spinning free.

ricky1981 11-06-2008 09:24 AM

Thanks, that's what I have done, will crack on with the rest now :)

A.J. Gee 13-06-2008 01:30 AM

I was wondering if any of you guys could suggest an alternative to the urethane bushings that fit into the Diff joints? They are the pink circular foam thingy's. Thanks.

scotoap 13-06-2008 06:32 AM

A.J.Gee, I make my own (Pink Foamy things) from old bumper rubbers or similar dense foam.
I have a section of broken ariel tube, which if you press and twist into the foam will cut a roughly cylindrical section which you cut into the desired length; hope this helps.
The same thing I also use to stop dogbones rattling in the outdrives.

DCM 13-06-2008 07:04 AM

if you get the filter tips for roll-up cigarrettes, they cut in half and are an exact fit.

sosidge 13-06-2008 02:02 PM

Another moment towards my 15 minutes...

http://www.oople.com/rc/photos/nercr...dNERCR0019.jpg

My Durga in one of the photos in the oople report from the South Shields regional.

AaronR 13-06-2008 06:26 PM

What body is that?

jimmy 13-06-2008 06:28 PM

its, a, durga body! :thumbsup:

Toonz 13-06-2008 07:14 PM

finally i got my db01 shocks today:thumbsup:

i'm using front and rear universal, how many mm of spacers do i need to install into the front and rear shocks to prevent the universals from popping out?

any advice on the springs?

thanks!:)

sosidge 13-06-2008 08:17 PM

Now I'm not sure how long the shafts are in the new shock set but you will probably need a few spacers - I am running mine at 80mm overall length front and 98mm overall length rear which seems a good balance between good travel and not losing driveshafts (I am still running dogbones in the rear).

For springs use the kit Durga ones (which are option DF03 ones). They are a good rate for the car and since they are a bit shorter than the TRF ones they give a good ride height too.

A.J. Gee 14-06-2008 01:06 AM

Quote:

Originally Posted by scotoap (Post 133032)
A.J.Gee, I make my own (Pink Foamy things) from old bumper rubbers or similar dense foam.
I have a section of broken ariel tube, which if you press and twist into the foam will cut a roughly cylindrical section which you cut into the desired length; hope this helps.
The same thing I also use to stop dogbones rattling in the outdrives.


Hey thanks a lot. Very good idea.

A.J. Gee 14-06-2008 01:07 AM

Quote:

Originally Posted by DCM (Post 133036)
if you get the filter tips for roll-up cigarrettes, they cut in half and are an exact fit.


Very brilliant idea. I appreciate that. I will definitley be using this alternative method.:thumbsup:

jimmy 14-06-2008 01:22 AM

I just cut a triangular bit of tyre inner foam for the one way drive cups - it's softer so doesn't bind up the suspension or drivetrain like the tamiya supplied orange things do.

sosidge 14-06-2008 08:20 PM

The thing that most annoys me about the Tamiya urethane bushings is that they break up inside the head of the diff screw, so when you pull them out the diff screw is full of gunk that you need to scratch out before you can do any adjustments! I will probably make something out of an old bit of inner foam at some point myself.

A.J. Gee 14-06-2008 11:26 PM

Just a curious question here. I was wondering how often some of you guys change your damper oil? Another question on my mind is when you have the spring off of your dampers and you push the piston all the way in, how far is the piston supposed to rebound back? Mine come back about 1/3 or maybe less then the piston length.

jimmy 14-06-2008 11:53 PM

I tend to setup my car so it has about 1/4 rebound and quite soft on full compression.

A.J. Gee 15-06-2008 10:11 PM

I can never seem to get both the dampers for the front and rear to rebound the same distance. I have them pretty close but when it comes to my buggy's i am a bit of a perfectionist.

By the way Sosidge, your buggy looks bad ass in that one photo. I love the white with the durga body shell. Makes me wish i went with a similar theme. I was wondering, what kind of tires you have on it. Are they the mini pins/spikes? I might have to pick me up a set.

sosidge 16-06-2008 01:57 PM

Quote:

Originally Posted by A.J. Gee (Post 133618)
I can never seem to get both the dampers for the front and rear to rebound the same distance. I have them pretty close but when it comes to my buggy's i am a bit of a perfectionist.

By the way Sosidge, your buggy looks bad ass in that one photo. I love the white with the durga body shell. Makes me wish i went with a similar theme. I was wondering, what kind of tires you have on it. Are they the mini pins/spikes? I might have to pick me up a set.

BAD ASS! Yeah baby - that's me!

I didn't choose white for the street cred though - I do all my shells white because it is EASY and I can SEE them! The tyres are Schumacher Minispikes in yellow compound - pretty much the default tyre for dry grass tracks here in the UK.

To get even rebound you will probably need to drill the holes in the caps and find some tiny screws to bleed them with - but to be honest a small difference in rebound isn't going to kill you. I just fill mine enough so that when they are fully compressed I neither feel any stiffening of the damping nor get more than just a tiny squeak of air bubbles, that seems to work fine for me!

NitroStar 16-06-2008 05:11 PM

I noticed a lot of people talking about the dog bones falling out if you don't put at least 3mm of limiters inside the 501x shocks. I don't notice this. In fact I'm thinking of removing 3mm and having a lot more droop to soak up big jumps & ruts in the rough track that I am running on. What do yall think? Is it just the universals that fall out or the dog bones too?

DCM 16-06-2008 06:03 PM

droop is a give here take there adjustment, I find that the droop may help rough terrain absorbsion but makes the car a lot more wallowy in the corners.

NitroStar 16-06-2008 06:24 PM

If my car bounced after a pretty high landing, then more droop would help that right? I don't want to go with heavier oil because that would effect steering and other things as well, right? Am I thinking in the right direction?

DCM 16-06-2008 08:47 PM

well, yes and no, see, no matter how much droop you have, depending on the jump, depends if you get chassis slap, and given loads of droop isn't really the answer.

I watch the kids cars going round on the stock shocks, and they look far more behaved than mine... grrrr

sosidge 16-06-2008 08:50 PM

Quote:

Originally Posted by NitroStar (Post 133854)
If my car bounced after a pretty high landing, then more droop would help that right? I don't want to go with heavier oil because that would effect steering and other things as well, right? Am I thinking in the right direction?

Droop gives more travel to soak up those landings, so may well help a landing "bounce", yes. Worth a test.

NitroStar 17-06-2008 12:15 AM

Quote:

Originally Posted by DCM (Post 133918)
well, yes and no, see, no matter how much droop you have, depending on the jump, depends if you get chassis slap, and given loads of droop isn't really the answer.

I watch the kids cars going round on the stock shocks, and they look far more behaved than mine... grrrr

Well, mine slaps just like it did (maybe not as bad) with the stock shocks. But, with the length suggested on sosidge's base setup, the 501x shocks are only 1 or 2mm longer than the stock ones. So I can understand why it slaps almost as bad. I'll rebuild them a little longer and see if I can keep the back end from bottoming out so badly.


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