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Old 01-29-2004, 07:06 PM   #1516
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I'm running the front sway in the stiffest position and the stock rear sway.
1 deg toe- out frt, -2deg camber frt, -3deg rear, stock toe- in rear, whatever that is. 40/40 on the foam tires but not trued down, they are about 64 mm. How much harder do tires come?

What if I take all the oil out of the front diff? Will it understeer less, on power?

rod b, back out your suspension stop screws.
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Old 01-29-2004, 07:37 PM   #1517
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Quote:
Originally posted by h82crash
I'm running the front sway in the stiffest position and the stock rear sway.
1 deg toe- out frt, -2deg camber frt, -3deg rear, stock toe- in rear, whatever that is. 40/40 on the foam tires but not trued down, they are about 64 mm. How much harder do tires come?

What if I take all the oil out of the front diff? Will it understeer less, on power?

rod b, back out your suspension stop screws.
Sways seem to be OK. Possibly use the gold stiffer on in the rear.

Front toe and camber seems ok, stock toe is 3 on high grip you should be able to go to 1-2.

40/40 is ok for a start, mayby go as far as 45/45 or 42/42. 45 is pretty much the hardest.

64mm tires are suicide on a high grip track. Too large by a long way, you need to get them to 58mm or lower (I am talking big grip here now).

Front diff, no good on high grip. You need a oneway to maximise the corner speed, a diff will work but you will always be slower.

Remove droop as I have said before, make it almost zero. With low droop settings it pulls your car down towards the racing surface when cornering lowering the CG. This is a very good thing on high grip surfaces.
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Old 01-29-2004, 07:55 PM   #1518
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AMG RACER, WHAT IS THE PURPOSE OF THE 4 GEAR DIFF IN HARAS SETUP? WOULD THAT BE GOOD FOR ANY TRACK OR WAS THAT BECAUSE OF THE TEMP AT THE TIME OF THE RACE? ANY INFO WOULD HELP.
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Old 01-29-2004, 08:22 PM   #1519
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Quote:
Originally posted by LILROBBY
AMG RACER, WHAT IS THE PURPOSE OF THE 4 GEAR DIFF IN HARAS SETUP? WOULD THAT BE GOOD FOR ANY TRACK OR WAS THAT BECAUSE OF THE TEMP AT THE TIME OF THE RACE? ANY INFO WOULD HELP.
Most "Pro" cars have 4 gear diffs. Basically you have double the contact surface area on the gear surfaces and therefore the surface has to do less work. Diff gears that are overworked tend to sharpen off and become "grindy" feeling.

Another byproduct of the extra surface area is the more contact area = more operating friction. A 4 gear diff empty of oil or grease has more natural resistance than a 2 gear diff. Therefore you can use lighter silicon oil and achieve a similar degree of stiffness.

For example I use a 4 gear diff with 30000wt oil in my V1R whereas I am using a 2 gear diff with 50000wt oil in my R40. Both produce similar amounts of resistance.
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Old 01-29-2004, 08:44 PM   #1520
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AMG..how about an evaluation of how the car drives?...

I respect your opinion......
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Old 01-30-2004, 08:36 AM   #1521
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Quote:
Remove droop as I have said before, make it almost zero. With low droop settings it pulls your car down towards the racing surface when cornering lowering the CG. This is a very good thing on high grip surfaces.
AMG, when you say minimum droop, do you mean to maximize suspension travel and preload?

Usually more roll=more traction, correct?
I could be misunderstanding something.

What is your ride height?

It would seem my tire size is the big problem.

Last edited by h82crash; 01-30-2004 at 09:14 AM.
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Old 01-30-2004, 09:43 AM   #1522
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Minimizing droop would be removing suspension down-travel.

Does anyone know what the #700 weight shock oil that comes with car equates to in associated/trinity shock weights. I didn't use the stock shock oil. I usually start my cars with 50wt/40wt but the springs feel really hard. The stock setup must be for high speed, high traction track.
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Old 01-30-2004, 11:40 AM   #1523
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Quote:
Originally posted by rod_b
Minimizing droop would be removing suspension down-travel.
That's what I thought. Not sure how that enhances chassis roll as advised by AMG. I set the droop to about 1 mm when I lift the car and unload the suspension. I set the ride height at 5 mm F & R.

Someone said it was 70 wt.
With the stock set up I'm rolling at Revelation. Very high traction and I need to go stiffer.
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Old 01-30-2004, 01:27 PM   #1524
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Quote:
Originally posted by h82crash
AMG, when you say minimum droop, do you mean to maximize suspension travel and preload?

Usually more roll=more traction, correct?
I could be misunderstanding something.

What is your ride height?

It would seem my tire size is the big problem.
On the high grip track I run on I usually set droop so my suspension drops maximum of 1-2mm when I life that end. Usually around 1mm. I invariablily use a 4mm ride height unless it is a very long main.

More roll = more traction to a degree. Droop does not stop roll really, that is mostly the springs job. Droop determines what the chassis plate itself does when rolling. Less droop pulls the plate towards the racing surface when rolling lowering the CG which is good to fight the traction roll. Also very low droop means your chassis will hit the ground before rolling too far.
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Old 01-30-2004, 01:31 PM   #1525
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Quote:
Originally posted by rod_b
Minimizing droop would be removing suspension down-travel.

Does anyone know what the #700 weight shock oil that comes with car equates to in associated/trinity shock weights. I didn't use the stock shock oil. I usually start my cars with 50wt/40wt but the springs feel really hard. The stock setup must be for high speed, high traction track.
It feels like around 60 in the associated scale to me. Just a total guess there.
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Old 01-30-2004, 01:35 PM   #1526
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Quote:
Originally posted by h82crash
That's what I thought. Not sure how that enhances chassis roll as advised by AMG. I set the droop to about 1 mm when I lift the car and unload the suspension. I set the ride height at 5 mm F & R.

Someone said it was 70 wt.
With the stock set up I'm rolling at Revelation. Very high traction and I need to go stiffer.
This might help with droop:

With a lot of downtravel:



Without much downtravel:

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Old 01-30-2004, 10:48 PM   #1527
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thanks for the info amg racer
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Old 01-31-2004, 08:14 AM   #1528
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AMGRacer, your time is much appreciated.
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Old 02-01-2004, 12:24 AM   #1529
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which servo would you recomend?
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Old 02-01-2004, 05:16 PM   #1530
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Hi there well I finally find out a way to put my battery pack I gued some velcro to the pack and to the battery compartment door
so far it had hold on quite well
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