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Old 06-26-2005, 04:48 PM   #781
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I never raced 1/8 scale before getting my jammin but I have won 2 of 3 races since getting it. I have had no handling problems whatsoever. The thing is on rails and fun as hell to drive taboot. I did however blow a shock seal this week. But other than that the thing is rock solid and very fast.
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Old 06-26-2005, 05:10 PM   #782
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Buggyman, it just has to be driven very carefully. I can't get on the throttle in the corners or it will push way out or break loose. Diffs are F-R 553Shock oil F-35w ofna black springs, R-35w black springs, M2 crime fighters. Just very hard to drive in the corners. ?????
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Old 06-26-2005, 05:42 PM   #783
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Why are you using black springs? None of ths setups that I have seen have black springs. Im running stock blue springs, stock pistons. 50 ae oil in the front 35 rear. Diffs 573. Everything else is stock and I cant break my car loose and it really doesn't push if I drive it right. Thing is dialed. This is on a fairly bumpy and hardpacked dusty track. So the conditions are far from perfect.
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Old 06-26-2005, 07:28 PM   #784
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here are some changes to make:
shock in middle hole on tower and INNER hole on a-arms front and rear
with stock pistons 40w ft/ 35 rear oil
B-blocks and the upper front arms in the top hole/ not center
diffs with 5/7/2
1 degree toe out front and 3 degrees in on rear.
blue springs and not black
try that and you should see an awsome difference.
brakes set at 30% front and 70% rear
I think your set up is just way off.
I have 2 cars and both are set up this way and I rarely change it between tracks because it works everywhere. I do change a thing or two here and there. I only mess with oils in the shocks and sway bars. The diffs stay the same except I have tried 10,000 oil in the center and like that also.
your problems are probably from the diff oil weights you have used.

this is by far the easiest car to drive around the track that I have owned and mostly in the corners
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Old 06-26-2005, 07:32 PM   #785
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Have any of you tried the green springs? I just picked some up in case to try on some of the looser tracks..........Jim
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Old 06-26-2005, 07:36 PM   #786
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Jim you run B and B today?
never tried different springs.
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Old 06-27-2005, 12:26 AM   #787
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xb8 is not so innocent to set up either believe me...
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Old 06-27-2005, 01:48 AM   #788
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W.E.D jim..
what are the green spring rate.. soft..?? stiff..??

Last edited by arghh; 06-27-2005 at 02:02 AM.
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Old 06-27-2005, 04:54 AM   #789
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Buggyman, I'll try that. I don't have any 7k dif lube. can I just put in 50% 10k and 50% 5k? That would make 7.5k. Are the shoks on tht rtr the same as on the pro version? Also are you using the stock sway bars? Thanks
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Old 06-27-2005, 06:11 AM   #790
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try the 10w in the middle that works good too. the shocks are the same but your springs are softer then the blues. I use the stock sway bars the most.
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Old 06-27-2005, 04:44 PM   #791
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Jeff, No, we worked on J concepts stuff all day, no racing this weekend. I'm racing on road next sunday at Superior it looks like.

arghh, the greens are one softer then the blue kit springs, from what i've read. Not sure how much though.

I guess i'll try them at our next state race and see how they work for myself, ......Jim
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Old 06-27-2005, 08:26 PM   #792
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Quote:
Originally Posted by W.E.D.Jim
arghh, the greens are one softer then the blue kit springs, from what i've read. Not sure how much though.
softer spring.. whats the advantage?? is there any different softer spring v/s softer shock(light shock oil).. what are the good combination, softer spring + light/heavy shock oil
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Old 06-28-2005, 12:09 PM   #793
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arghh, The best way to describe the difference I can think of is, the "spring" supports the weight and controls how the weight is distributed. The shock "oil" controls the spring and how quickly it transfers weight, etc.

Usually a lighter spring will make a car easier to drive on loose surfaces, since it transfers weight less harshly, kind of like the ride in a sports car vs a luxury car?

Theories are great, but testing is the best way to see if the results will be what is expected. This is why I wondered what to expect before heading to my next race, even though I have a pretty good idea of what might happen......., Jim
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Old 06-28-2005, 06:46 PM   #794
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one thing to think about, when you change oil you also need need to change spring rates . for example if you go with heavy 90 shock oil with soft springs your rebound is crap, and thats not keeping the tires on the ground. But the if you go the other way with stiff springs light oil the car may get a bounce to it.
so you need to find that balance of spring rate and shock oil.

note shimming springs does not change the rate it changes ride height
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Old 06-28-2005, 08:45 PM   #795
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True, you can fine tune your oil or springs by trying "slightly" different ones, without changing the other. For example, 40 wt oil in front with blue springs and you want to try 45, you most likely wouldn't need stiffer springs. That wouldn't mean you won't try them, but you would still be in a "range" of the origional springs capability. Of course, now we're back on the testing thing, since the only way to find what works for each racer is testing.......................Jim
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