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Old 10-28-2010, 12:25 PM   #1216
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The center pivot is the same on the old car as the new ones. The side pivots have changed but they look like they might be made to the same dimensions so they should work with the older car...not sure on that one though.
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Old 10-28-2010, 12:37 PM   #1217
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first of all I donīt think the Sophia is very good outdoors. I personally have not tried GT style bodies until now, but I have seen other driver using the Sophia at a low traction track and in the end anything other was better then the Sophia.
If you want staying with GT style bodies I would go with the Corvette or maybe with the Mulsanne also. Beside that the Carson Pro10 style body seems working pretty good, thatīs also what Iīm using.

Regarding your setup I think the saddlepack batteries at the rear will result in moore steering. From what I read until now regarding BMI cars moving the weight toward the front will reduce steering a little and the car should be easier to drive.

Next thing are the thick CF flexplates. Maybe this is too much but I donīt know as I donīt have them. Iīm using the thin ones switching between long and short position depending on the track.
Maybe someone (Jason) could explain the difference at the track between the thick and thin CK flexplates. Until now I didnīt find any comment on this.
Especially I would like to know if the short position on the thin flexplates is similar to the long position on the thick flexplates or maybe the difference is larger.
The Thick flex plates absorb less of the load and push the weight onto the tire which will increase steering. Lighter side spring tension or thin flex plates will absorb more transferring less weight to the front tires and therefor increase rear traction. So in a nut shell, stiff side spring more steering, softer side spring tension increases rear traction and decreases steering.

Softer center spring increases rear traction as does running the shock longer. Longer shock increases the leverage the pod has to compress the shock mechanically making the shock feel softer.
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Old 10-28-2010, 12:41 PM   #1218
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Does anybody know who might have any center pivots (DB3020), BMI is not supporting the old cars but we have around 10 drivers with DB10R, kinda sucks that they're forced to invest in conversion kits for a car that's just a season old just because they can not get the parts anymore I would get a dozen of those in any hobbyshop still have them in inventory.
The Origional DB10R used the center pivot you are talking about and i havent made that car for a few years. The DB10RR uses the same center pivot as the copperhead. I had a bunch of those older pivots in stock for a few years but at some time they will get phased out. When the demand for them goes to next to none, i didnt feel a need to keep a huge inventory of them. So i just held on to them until my inventory was eventually gone. I support my cars as best as i can but at some point older parts that are not in demand will get phased out. I try to keep as much in stock as possible.
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Old 10-28-2010, 01:38 PM   #1219
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Does anybody know who might have any center pivots (DB3020), BMI is not supporting the old cars but we have around 10 drivers with DB10R, kinda sucks that they're forced to invest in conversion kits for a car that's just a season old just because they can not get the parts anymore I would get a dozen of those in any hobbyshop still have them in inventory.
Try Action Model Centre in the UK.

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Old 10-29-2010, 06:24 PM   #1220
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Try Action Model Centre in the UK.

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stateside but they ship.. http://www.stormerhobbies.com/cgi-bi...umb=on&smode=0
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Old 10-30-2010, 12:29 PM   #1221
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The Thick flex plates absorb less of the load and push the weight onto the tire which will increase steering. Lighter side spring tension or thin flex plates will absorb more transferring less weight to the front tires and therefor increase rear traction. So in a nut shell, stiff side spring more steering, softer side spring tension increases rear traction and decreases steering.

Softer center spring increases rear traction as does running the shock longer. Longer shock increases the leverage the pod has to compress the shock mechanically making the shock feel softer.
Regarding the CF flex plates Iīm running the thin ones at my DB10R (I think itīs a DB10RR). Sometimes short and sometimes long position depending on track and this works very good.
Comparing both CF flex plates and positions what setup is softer, thin ones running in short position or thick flex plates in long position?
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Old 11-21-2010, 12:28 PM   #1222
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I looked on the website for some setup sheets for the DB10RR but only found the DB12RR. Ofcourse i can use the db12rr setup sheets as they are basicy the same cars but wonder if i was overlooking something?.

Today's race went positive and negative. Class 2s lipo and 17.5t, open esc.

From 8 drivers in the qualifications i got q1: 2nd place, q2:2nd place and q3:3d place. The car was very stable and very good to drive but in the finals the car was beginning to tracton rolling a lot!. I was lucky i got 4th place overall in the end by carefully go through the corners more flowingly.. I really got some very bad rolling going on lol. Without the traction rolling i think i could have ended a lot higher.

I had the thick plates on the stiff position with corally extra thick damper syrup. 60 or 65wt oil (not sure) and a heavy center spring magenta backtires. front .020 spring with lilac front tires, only a thin line of traction compound.

Probably due to higher traction in the finals and the fact i put my ride height to roughly 4mm all around. (It was 3 -3.5 ish before). The traction rolling got worse and worse.

How to fight this? Would i have to go back to the soft position on the flex plates and maybe a little less heavy on the damper syrup. Tires were roughly 55mm. Probably i would have had to go a little softer in the back to fight against the traction rolling?
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Old 11-21-2010, 12:58 PM   #1223
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did you use carbon links or fiber ones
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Old 11-21-2010, 12:59 PM   #1224
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carbon ones
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Old 11-21-2010, 01:20 PM   #1225
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I need some help too. My car is great when the traction is low but when it comes up it has loads of steering and seems to lift the inside wheels on the faster tight turns causing the rear to break loose or want to traction roll. Where should I start?
I am running thick plates and lilac spec tyres.
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Old 11-21-2010, 01:23 PM   #1226
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What position are your flexplates? do you use heavy dampersyrup as well?

When traction is medium i can say i had one of the faster cars on the track but with traction comming up traction rolling was very bad. Inside rear tire was lifting as well with mine sending the car sometimes in a slight spin around.

With the ride height at 3-3.5mm it was going great, at 4 it was rolling bad. I had to put my ride height from 3.5 to 4 is as i already had 2 warnings for too low ride height (measured after every race, 3mm is minimum) but boy was it fast!
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Old 11-21-2010, 01:27 PM   #1227
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Flex plates are mounted in the long position and damper fluid is thick.
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Old 11-21-2010, 01:27 PM   #1228
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you can try less camber to take some steering out,a little squat may help
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Old 11-21-2010, 01:32 PM   #1229
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i just set the camber so my tires run flat. When i use less camber my tires will be coning. So, is that just something that i have to live with? I will try it next time. Another thing is i use 4 caster (all shims at the back) with the 5 caster block.

What do you mean by squat? Is that the ammount of sagging of the rear pod?
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Old 11-21-2010, 02:52 PM   #1230
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chassis a little higher than the pod
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