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Old 04-02-2011, 10:11 AM   #1741
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Thanks guys, that'll get me started
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Old 04-02-2011, 05:33 PM   #1742
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Go with a pink rear tire and Lilac(BSR is Team purple) front. Leave them full size out of the box. Also use thin,runny suntan lotion on top of your tire treatment. I treat the tires for 10 minutes and then add suntan lotion over it and leave it on until i race. One more thing i do is i run the pod .5-1mm higher at the front of the pod. Almost like anti squat. Really ties the rear down. The pod droop and ride height remain the same, its just that at ride height, the pod is tilted with the front being a little higher.
Do you think raising the front of the pod alters the weight transfer, truly adds antisquat, or just guarantees the center of the car won't drag?
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Old 04-02-2011, 10:44 PM   #1743
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Do you think raising the front of the pod alters the weight transfer, truly adds antisquat, or just guarantees the center of the car won't drag?
Does it really matter or are you trying to understand a prospective of something?
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Old 04-02-2011, 11:15 PM   #1744
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2 things: 1. I have a techie sort of brain and I like to know why things work the way they do. 2. I have long believed that we let our cars drag quite a bit on carpet, supported by the fact that on our low grip track, you can get MORE grip with a stiffer center spring, and from a logical tuning view, that's just wrong. Though I have years of experience with this stuff, Jason does too, and I'm sure he has tried things I haven't. It's bench racing and I like it almost as much as real racing!!
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Old 04-03-2011, 12:04 AM   #1745
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I feel ya brah....we're on the same page. Just asking ya because some people ask questions about things they have no idea about what they're asking. Apparently you do I think quite a few of us BMI owners have these 'type' of bench testing brain activities
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Old 04-03-2011, 07:18 AM   #1746
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Do you think raising the front of the pod alters the weight transfer, truly adds antisquat, or just guarantees the center of the car won't drag?
It changes the direction the majority of the drive is directed under acceleration. When you hit the throttle, the front of the pod lifts.When the shock bottoms out(fully extends), You can either have the pod level which will allow the weight of the car to be neutral, or if the pod is raised in the front, have the accelerated weight transfer favor the rear of the car. This is really only under acceleration. When the pod is lower in the front at ride height. It gives you the more neutral feeling or better rotation without favoring the rear for traction.
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Old 04-03-2011, 09:43 AM   #1747
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Thanks!
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Old 04-03-2011, 06:50 PM   #1748
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less fluff and more stuff
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Old 04-04-2011, 12:03 AM   #1749
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I'm selling my Copperhead 12 and other BMI parts, take a look.

http://cgi.ebay.com/BMI-Racing-Coppe...#ht_500wt_1156
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Old 04-07-2011, 07:40 PM   #1750
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Other than the flex links what else was changed on the back from the DB12RR to give the car more rotation for carpet? Ever thought of having an extra set of holes on the rear pod to take the old hockey sticks or are they a different length? I'm just curious because on asphalt Frank's DB12RR is able to run with magentas all around where I'll be switching to pink rear and double pink front on my CH12. I'm sure the car will work great like that but I'd like to be able to get back to running all magentas or all double pink for better tire wear.
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Old 04-08-2011, 03:18 AM   #1751
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There was quite a bit that has changed. The Straight plates have much less flex to them as far as allowing rear steer. It is much harder to compress the axle and that reduced rear traction. Also, the plates are much lower. That is more of a leverage thing. The last major difference is the pivot location in relation to the front axles. Its not that the CH12 needs a much softer tire. If traction is pretty good, you can use the harder tires. Its just that the car is not as forgiving on dusty tracks as the DB12RR being that it is more aggressive.
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Old 04-08-2011, 06:30 AM   #1752
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we still have some locals running the db12's
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Old 04-08-2011, 10:11 AM   #1753
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also the other difference is chassis flex. the db12 chassis is more flexible than the ch12.
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Old 04-08-2011, 10:58 AM   #1754
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Quote:
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also the other difference is chassis flex. the db12 chassis is more flexible than the ch12.
It's because I'm just better then he is! Just joking Burt see you Sunday!
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Old 04-08-2011, 12:50 PM   #1755
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I just wanna be fast like Frank
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