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Old 04-20-2008, 03:05 PM   #256
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Jason, would a thrust bearing like the one from Slapmaster help to smooth out the diff even more. I've done it on my KSG pan car and it really does the job.
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Old 04-20-2008, 05:19 PM   #257
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It wont make it any more smooth but it will make it last longer. Let me give a quick explination. This is in no way bashing or supporting what is available. It will just be explaining the reasoning behind running with and without a thrust bearing.

If i am running at a big event i will never use thrust bearing. I want the diff to be as free as possible with as little drag or resistance as possible. Unfortunately, this leaves me at risk of blowing my diff if i take a big hit. This is a risk i will always take because a diff with minimal drag is the most effective and makes the car handle better.

The reason for this is by using a flanged ball bearing, you are getting a thrust bearing effect without squeezing the balls between washers. The ball bearing spins about as free as an unloaded bearing even when the diff is tight. The only resistance is the balls in the spur being squeezed by the diff rings. Now, with having a diff using a new bearing for a thrust bearing will be doing the job of a thrust bearing with alot less friction. The problem is that when you take a good side shot to the rear axle, the flanged bearing can not take the side load and the inner race exploads or breaks. So in a nutshell, a diff using a flanged bearing for a thrust bearing will yield the best possible diff but will be in danger of going south on you if you take a good hit. Adding a thrust bearing will increase the life of the flanged bearing. A thrust bearing is designed to take a side load. It takes the side load off of the ball bearing and keeps the diff staying smooth for a long period of time. The down side is the added resistance of another set balls being squeezed by washers.You sacrifice the best possible diff for a longer lasting diff. The decision is up to the hobbyist as to which is more important to him or her and what makes them able to enjoy running there cars. If you have your share of wall hits, A thrust bearing is a must so you can stay sane. If you dont crash much and can benefit from a super free diff, you dont really want to run a thrust bearing.
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Old 04-20-2008, 06:46 PM   #258
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Thanks Jason, I learned something tonite.
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Old 04-20-2008, 06:50 PM   #259
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Not a problem buddy. Running a thrust bearing will make the diff feel super smooth for a long time.
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Old 04-20-2008, 07:08 PM   #260
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is the manual available online in pdf yet? Any setups available to start with for high bite asphalt?
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Old 04-20-2008, 07:53 PM   #261
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The manual and car will be on the website tommorow. I will be putting the box setup on the site this week that will be good for high bite asphalt and club level traction carpet. We have tested the car on every surface and about any condition. The car is extremely adjustable and easy to tune for any surface. It also comes standard with the new BMI linear front springs.
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Old 04-20-2008, 08:02 PM   #262
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thanks - you guys really put allot of work in this car. i dropped you an email to ask about how you shipped out on friday.. what carrier and if you have tracking numbers. Delivery without someone to sign for it in my neighborhood is a pain.
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Old 04-20-2008, 08:09 PM   #263
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I will check with the shipping department on monday. Normally shipments in the US go UPS and international via USPS unless another method is specified by the customer. Either way we will have your tracking #.

We really try to produce the best possible products. Thank you for the kind words.
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Old 04-20-2008, 08:13 PM   #264
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Quote:
Originally Posted by protc3 View Post
I will check with the shipping department on monday. Normally shipments in the US go UPS and international via USPS unless another method is specified by the customer. Either way we will have your tracking #.

We really try to produce the best possible products. Thank you for the kind words.
Me too Jason.... I'm hoping it only takes 2 days to get here.... (Saturday and be here tomorrow)....LOL

Wishful thinking I bet?
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Old 04-20-2008, 08:50 PM   #265
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Old 04-21-2008, 05:56 AM   #266
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BMI DB10R Kits and the instruction manual are on line.

BMI WebStore DB10R Order Page

BMI DB10R Manual
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Old 04-21-2008, 06:00 AM   #267
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Hey Adrian, when I click on the DB10R assembly manual I get the manual for the DB12.
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Old 04-21-2008, 07:09 AM   #268
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Quote:
Originally Posted by t4mania View Post
Hey Adrian, when I click on the DB10R assembly manual I get the manual for the DB12.
Sorry, I just fixed it....

FYI, here are some new pics of the car.
Attached Thumbnails
BMI DB10R!!!-s7-frt-sm.jpg   BMI DB10R!!!-s7-flqtr-sm.jpg  
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Old 04-21-2008, 04:32 PM   #269
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car will be here tomorrow.

advise on what compound foams i should pick up for testing? one track is high bite super smooth indoor asphalt, other is standard carpet
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Old 04-21-2008, 04:59 PM   #270
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I would start with double pink rear and purple fronts. We have been running 2x pink on outdoor high bite asphalt and it has been real good. Indoor may be a little more bite. Run the tires at about 2.150 front and rear.
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