BMI's DB12R

[Clegg]

Originally Posted by tellan

Just completed the build 2 hours 40 mins and another 2 hours kit it out.What do you think guys.

BMI 12RR If it goes as well as it looks watch out.

Wow thats a fast build! took me 2 nights. 1 night to just build the front end and sand/CA the chassis, and the second night to get electronics on it and get it running.

[protc3]

Originally Posted by fatbear

Jason, (or anyone for that matter) can you please explain what changing the front droop does for the cars handling.
ie; changing from 3 shims to 2 shims above the upper pivot ball.

Is there an optimum difference in tire dia from front to rear? Perhaps a ratio you can use like the rear tires are for example should be 1.05 times bigger than the fronts.

Droop in the front makes the car a little more predictable. This is at the expense of a slight bit of on power steering. With no droop, the car will feel very direct and almost feel like it wanders a little. Some guys like that. I prefer to have the car a little more predictable.

I usually always run a .100 split. The .100 difference from front to rear just gives me the feel i am looking for. When i run a .050 split, I feel the car has spongy feel. The .100 works well for me. I have seen many variances is preffered split.

[protc3]

Originally Posted by tellan

Just completed the build 2 hours 40 mins and another 2 hours kit it out.What do you think guys.

BMI 12RR If it goes as well as it looks watch out.

Very cool buddy. Let us know how it goes.

[fatbear]

Originally Posted by protc3

Droop in the front makes the car a little more predictable. This is at the expense of a slight bit of on power steering. With no droop, the car will feel very direct and almost feel like it wanders a little. Some guys like that. I prefer to have the car a little more predictable.

I usually always run a .100 split. The .100 difference from front to rear just gives me the feel i am looking for. When i run a .050 split, I feel the car has spongy feel. The .100 works well for me. I have seen many variances is preffered split.

Thanks Jason,
one more thing. On the weekend I was getting a little bit of double steer on the car. We were running outdoors on Ashfelt. What would I do to correct this without sacrifising any rear grip?

[Randy Caster]

Hey Jason, did the cf arrive?

[protc3]

Originally Posted by fatbear

Thanks Jason,
one more thing. On the weekend I was getting a little bit of double steer on the car. We were running outdoors on Ashfelt. What would I do to correct this without sacrifising any rear grip?

Try running the flex plate in the short mounting position

[protc3]

Originally Posted by Randy Caster

Hey Jason, did the cf arrive?

I called them today and it should be at my shop on wednesday.

[Randy Caster]

Originally Posted by protc3

I called them today and it should be at my shop on wednesday.

Sweeet

[Xtant3150c]

Mahalo's BMI I got my 78t spurs and a pinion in today

Already got the spur mounted on the car!

Can't wait for Sunday!

[chris_dono]

I found what the problem was with the motor moving. I had a bent pod plate (the one where the motor mounts)

I've changed it over now, so hopefully that's the end of the problems

[Uga]

how can you bend THAT?

[chris_dono]

Originally Posted by Uga

how can you bend THAT?

came out of a sweeper too wide and bounced off a wall a long time ago. I bent the pod plate back as best I could and had meant to replace it. I forgot to actually change it over though !

[kobiwan]

Can someone tell me the difference, if any, between jaco yellow rears and pink rears, they have the same shore rating but I wasn't sure if there was a difference. I heard the pinks just don't chunck as easy.

[oze]

Here is the answer:
http://bmiracing.com/bmiv4/index.php...d=15&Itemid=30

[Randy Caster]

That's definitely a useful guide, I was honestly pretty clueless as to what all the foam compounds are, just been running what everyone's been telling me to run, lol.