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Old 12-06-2010, 10:24 PM   #871
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Originally Posted by Shawn68z View Post
Nope, the guys in our club have been snapping them clean off! Not a bent one in sight.


I honestly think it must be a bad batch or something. I have been running my 3.2R with the prostrut front end now for 3-4 years, and have not broken one yet, but I have seen 4-5 broken in the last couple of weeks on the XL cars.

Shawn.
Is anyone seeing any correlation between the bronze pivot balls and the bent/broken kingpins? I've never run my kit without the bronze balls and I would rather not believe there was a bad run of the kingpins.
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Old 12-07-2010, 12:44 AM   #872
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Originally Posted by andrewdoherty View Post
Is anyone seeing any correlation between the bronze pivot balls and the bent/broken kingpins? I've never run my kit without the bronze balls and I would rather not believe there was a bad run of the kingpins.
From my experience people running the bronze balls snap kingpins, ones running the plastic balls bend them.

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Old 12-07-2010, 12:54 AM   #873
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Originally Posted by TrevCoult View Post
From my experience people running the bronze balls snap kingpins, ones running the plastic balls bend them.

Trev
So what you are saying is its all depends on what kind of balls you have?
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Old 12-07-2010, 01:13 AM   #874
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Did you buy a 12th scale or tenth scale. The LE is a tenth scale.
yeah a tenth scale sorry wrong place
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Old 12-07-2010, 01:27 AM   #875
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yeah a tenth scale sorry wrong place
The LE's are on the way TOM. Don't worry too much about setup. The team will be involved in getting it sorted for our track conditions. We will get it fast!
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Old 12-07-2010, 03:52 AM   #876
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Is anyone seeing any correlation between the bronze pivot balls and the bent/broken kingpins? I've never run my kit without the bronze balls and I would rather not believe there was a bad run of the kingpins.
Difficult to say,
a guy at the club runs plastic balls and broke his king pin,
I run bronze pivot balls and bent a king pin, last year I used plastic pivot ball and broke one but the king pin was OK.

I would say it depends how you crash, of the impact force.
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Old 12-07-2010, 04:55 AM   #877
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So what you are saying is its all depends on what kind of balls you have?
Oh definitely

The metal against metal seems to make it easier to snap the kingpins, less give. Of course there are always exceptions.

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Old 12-07-2010, 05:38 AM   #878
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So much for my theory. I've bent about 6 in the last two weeks and broken none and I am running the bronze balls.
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Old 12-07-2010, 05:56 AM   #879
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Hey guys,
I thought I'd post some pics and the set up I used at the US Indoorchamps.
This set up TQ'ed and won the A main masters

Front:
1.61" magenta, sidewall glued
2 shims on axle to space wheel out
10* castor blocks
stock upper a-arms
.50mm springs with .005" droop
20,000 lube on kingpins
servo flat
3 3/4mm clearance

rear:
1.66" magenta, seam glued
max. width
white side springs, .01" off of bottom plate
20,000 side tube lube
25wt. oil with red spring
1mm droop
4 1/4mm clearance

If you have any questions or comments let me know

Attachment 675369

Attachment 675370
Congrats on your win! What body did you run?

I am an experienced racer but new to the disciplin and I have a few questions about tire "management". Anyone feel free to shime in about an efficient strategy to have some practice time on tires without burning too many.

Do you practice or race with your tires at a larger diameter before getting them to that size? If so, how does it affect your setup?

How many runs can you get from tires that size?

thanks in advance.
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Old 12-07-2010, 06:24 AM   #880
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I have the bronze balls in my car and started having problems bending hingepins. I started leaving the clamping screw out of the arm and I have much better luck now. So far I haven't had the ball pop out yet.
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Old 12-07-2010, 06:42 AM   #881
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Thanks for the congrats!
I ran all my "race" tires in 1 practice heat each.
I started at 1.69" rear 1.64" fronts
I think on a low bite tracks, those diameters and added ground clearance actually help with traction.
For qualifing I skimmed them, 1.69" rear and 1.63" front for the first run.
Every run I took off .01"
For the main, that was the 4th run on that set.
I was at 1.66" rea and 1.61" front.
Traction was high and that diameter was perfect



Quote:
Originally Posted by Jeppi View Post
Congrats on your win! What body did you run?

I am an experienced racer but new to the disciplin and I have a few questions about tire "management". Anyone feel free to shime in about an efficient strategy to have some practice time on tires without burning too many.

Do you practice or race with your tires at a larger diameter before getting them to that size? If so, how does it affect your setup?

How many runs can you get from tires that size?

thanks in advance.
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Old 12-07-2010, 08:39 AM   #882
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Thanks for the help.

You put 20k tube lube on the king pins. Does it give you a dampening effect? is that commun practice?

I used a parma speed 8 HD body (not LW to handle my first runs crash). I have an unpainted parma Zytec 04s light, should i prepare it to try it on? Is there any other body i should get or those two could do the job?

I will be racing on a high traction carpet.
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Old 12-07-2010, 09:01 AM   #883
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The lube was for dampening. I've always used some type of lube for dampening to slow things down.

I run a Parma speed 8. My car set up seems to work the best with it. I tried other Parma bodies, but liked the speed 8 the best.


Quote:
Originally Posted by Jeppi View Post
Thanks for the help.

You put 20k tube lube on the king pins. Does it give you a dampening effect? is that commun practice?

I used a parma speed 8 HD body (not LW to handle my first runs crash). I have an unpainted parma Zytec 04s light, should i prepare it to try it on? Is there any other body i should get or those two could do the job?

I will be racing on a high traction carpet.
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Old 12-07-2010, 09:07 AM   #884
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I have a carpet knife 3.2 and just finished painting two new bodies for it. I want to upgrade to the Gen XL. Are the body posts in a different location on the XL in comparison to the 3.2?

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Old 12-07-2010, 09:38 AM   #885
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Originally Posted by danthrc View Post
I have a carpet knife 3.2 and just finished painting two new bodies for it. I want to upgrade to the Gen XL. Are the body posts in a different location on the XL in comparison to the 3.2?


Yes they are. I recently switched and the gen x is about 1cm further back and slightly closer together in the rear. All of my bodies now have 2 sets of rear holes. Blarrrggg
But the fronts are the same
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