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Old 06-17-2013, 04:51 PM   #2401
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Originally Posted by asc6000 View Post
and turn the shock caps around on the front or they will get impacted with dirt. Like the guy from the mens wearhouse... Your'e gonna love it.
I flip em around too, but the instructions say to do bleeder screw up?

Also, he's missing a sensor wire.


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Originally Posted by aloksatoor View Post
Yeah I got them aluminums and never looked back. I used some simichrome polish on the shock shafts and they are butter now. For droop I ran 1 mm downstop front and 4 mm downstop in rear. It has enough on power steer for a super fast sweeper and can still break it loose on tight hairpins with a dab of brakes . Also removed the metal diff gears and used v2 upgrades did not notice much of a difference though.
I'm still using v1 plastic gears

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Originally Posted by Boz View Post
Yes it has.

Build your kit as per instructions and I would change the following things.

7,000 diff oil front and rear

3mm spacer in front shock will equal about +4mm of droop when using the inner arm hole and ballend is screwed all the way up. Unscrew for more droop if required.

2mm spacer in rear shock will equal about +4mm of droop when using the inner arm hole and ballend is screwed all the way up. Unscrew for more droop if required.

Use inner holes on arms for mounting the shocks.

Ride height should be 20mm front and rear.

Glue on some Proline Suburbs. (That's the icing on the cake for our track)
Did you ever try 5/5 Boz?
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Last edited by silvalis; 06-17-2013 at 05:03 PM.
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Old 06-17-2013, 06:36 PM   #2402
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Yes I have try all different diff combos, by the finals I keep finding myself dropping back in the 7000 diffs.

I will be going back over the diff combos again with my latest setup as I need to find a little more turn-in.

With +25years of racing experience, this has to be the chassis that I have most enjoyed racing. Plus I have a good group of XB4 drivers around me at the track and we work well together.

I still love 1/8th on-road, that's serious fun.
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Old 06-17-2013, 08:34 PM   #2403
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Once they are built I doubt the screw up or down makes much of a difference. And yea Boz, the XB4 is an amazing car. But thats like most technical things in life, I remember when we got a color tv.... wow. Have you tried 3/3 ? pretty interesting.
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Old 06-17-2013, 09:56 PM   #2404
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The sun shines everywhere eventually

http://www.wcmrc.asn.au/race_result
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Old 06-17-2013, 11:21 PM   #2405
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5/3 is the lowest so far. I'll try it this Friday night since z00m things the sun will be shining.
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Old 06-18-2013, 12:54 AM   #2406
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If it doesn't rain tonight we'll be racing tomorrow night. Sounds like more rain before Friday so not sure if it will be on.

I'll try the 3/3 diffs and we can see which one works on our current low grip. I really like the way the 7/7 diffs get off the turn so as long as we don't lose that drive I'll be happy.
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Old 06-18-2013, 09:26 AM   #2407
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You should be warned this is my first gear diff race car so I may be doing stuff that is totally wrong. I will say that as I learn about how to tune them I am liking gear diffs better and better. One of the super nice things is how easy it is to change the diffs out, I keep built diffs with various fluids and just pop them in and out. 6 screws on a XB instead of 200 like my ZX5.
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Old 06-18-2013, 04:45 PM   #2408
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aww cmon it was only 12 for the rear and 10 for the front :P

I think I only removed my zx5 diffs twice in 12 months. too bad it didn't have an access screw hole like the rb5s.

Come to think of it, isn't the XB4 only 4 screws, not 6?

edit (forgot about the rollbar. bah. just leave it off, it's not needed)
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Old 06-18-2013, 08:00 PM   #2409
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ok , maybe it's not 200
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Old 06-18-2013, 08:10 PM   #2410
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Uhhg traction rolls... How do we fight these again?

Running kit Carpet setup 45/37.5 losi oil.

On a large sweeper late in the corner i have been rolling over. And one other dog leg section gettin up on 2 wheels. ... Everywhere else im good. And initially with new tires i was not rolling in the large sweeper... I suspect i my fronts have worn less then the rears..

What are my first changes i should look to trying? Heavier sway bars?
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Old 06-18-2013, 08:40 PM   #2411
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Originally Posted by Joel Lagace View Post
Uhhg traction rolls... How do we fight these again?

Running kit Carpet setup 45/37.5 losi oil.

On a large sweeper late in the corner i have been rolling over. And one other dog leg section gettin up on 2 wheels. ... Everywhere else im good. And initially with new tires i was not rolling in the large sweeper... I suspect i my fronts have worn less then the rears..

What are my first changes i should look to trying? Heavier sway bars?
Cheap fix, roll center changes. lower inner holes on both shock towers. For the hinge pin inserts raise the hinge pins relative to what they are before and bring them closer to the center line (might not be possible if you have some specific antisquat setting or a kickup setting).

Then I would go with roll bars. All this is assuming your running the right tires and inserts of course .

On another note I run the silvalis setup springs 3 dot front 1 rear non progressive. I had the progressives and I think they might be ok for tracks which are rutted up with large jumps. Our outdoor clay is very smooth and sugared right now so the linear work well. Also for the progressives, I think a bladder shock would work better. Emulsions would have linear damping even when shocks fully compressed and the spring is tightest (probably causing that weird unsettled bouncy feeling coming from big jumps on the prg springs).
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Old 06-19-2013, 01:28 AM   #2412
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Originally Posted by aloksatoor View Post
Cheap fix, roll center changes. lower inner holes on both shock towers. For the hinge pin inserts raise the hinge pins relative to what they are before and bring them closer to the center line (might not be possible if you have some specific antisquat setting or a kickup setting).

Then I would go with roll bars. All this is assuming your running the right tires and inserts of course .

On another note I run the silvalis setup springs 3 dot front 1 rear non progressive. I had the progressives and I think they might be ok for tracks which are rutted up with large jumps. Our outdoor clay is very smooth and sugared right now so the linear work well. Also for the progressives, I think a bladder shock would work better. Emulsions would have linear damping even when shocks fully compressed and the spring is tightest (probably causing that weird unsettled bouncy feeling coming from big jumps on the prg springs).
Don't you want to lower your rear rollcentre to stop late corner tractionrolling, not raise?
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Old 06-19-2013, 01:41 AM   #2413
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Don't you want to lower your rear rollcentre to stop late corner tractionrolling, not raise?
lowering it at anytime, won't it cause the car to roll more?
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Old 06-19-2013, 02:38 AM   #2414
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lowering it at anytime, won't it cause the car to roll more?
nevermind, you are right.
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Last edited by silvalis; 06-19-2013 at 06:42 AM.
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Old 06-19-2013, 10:21 AM   #2415
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If I traction roll, I start by changing my droop in the rear. Usually 1 mm will make a huge difference.
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