BMI's DB12R
#8101
what problems are there in mod except breaking of flexplates after hitting the walls? Just curious.
#8102
My problem with mod is getting enough steering without making the car way too twitchy and/or having a snap loose problem.
#8103
It should help the pod to return to center position better. I've always had to work with the steering wheel to get the car going straight, it's not a problem with a slower motor, but with modified it's sometimes quite tricky.
#8104
Tech Fanatic
iTrader: (13)
Will the RR upgrade kits (particularly the lipo chassis version) be updated to include the new carbon flew plates as a running change? I'm looking to update my db12r to db12rr specs and use the lipo chassis, but I'm also wanting to update to the carbon flex plates as I've snapped a few fiberlgass ones myself.
#8105
Do you get that feeling that it's too twitchy in the corner entry, but in the same time it still understers on corner exit..? If so then try a harder center spring, it will transfer more weight to back when you when you are deaccelerating thus you will gain more rear traction and reduce the twitchiness and put more weight to the front when accelerating going out of the corner. This usually helps me.
#8106
Tech Champion
Technically it isn't transferring weight to the rear but transferring less to the front.
#8107
I'll give the harder center spring a try this weekend. Last race I did find that heavier oil in the center shock did make the car feel more planted off power so the harder spring might give it back the on power steering I need.
#8108
Guys...I need a little help. I was running pretty good this past weekend at my local track. I qualified 5 out of around 12. I should have done a-lot better however my car kept looping out on me to the left side really bad. The funny thing was that it didn't happen until around the 3 min mark. I had plenty of traction until that mark and till the end of the race. I actually was in 3rd place until this point and then the grip went away.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
#8109
Tech Adept
does anyone have pictures of there bmi t bar cars? If so it would be a great help to post them..
#8110
Guys...I need a little help. I was running pretty good this past weekend at my local track. I qualified 5 out of around 12. I should have done a-lot better however my car kept looping out on me to the left side really bad. The funny thing was that it didn't happen until around the 3 min mark. I had plenty of traction until that mark and till the end of the race. I actually was in 3rd place until this point and then the grip went away.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
As for spinning only in one direction just go back to the basics of finding a tweak. Check tire size, left/right balance, front springs, bent/stressed/broken parts, etc.
#8111
Tech Champion
#8112
Tech Lord
iTrader: (13)
Guys...I need a little help. I was running pretty good this past weekend at my local track. I qualified 5 out of around 12. I should have done a-lot better however my car kept looping out on me to the left side really bad. The funny thing was that it didn't happen until around the 3 min mark. I had plenty of traction until that mark and till the end of the race. I actually was in 3rd place until this point and then the grip went away.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
Any suggestions?
Running Jason's standard setup with magenta tires all the way around.
#8113
Moderator
iTrader: (9)
Join Date: Jan 2004
Location: Outside doing things in places... Denver, CO
Posts: 4,609
Trader Rating: 9 (100%+)
Usually when the car loses rear bite after a few minutes or later into the race its because the car is set up too loose from the start and overworks the rear tires. Dial out some front end grip to start and see the difference.
As for spinning only in one direction just go back to the basics of finding a tweak. Check tire size, left/right balance, front springs, bent/stressed/broken parts, etc.
As for spinning only in one direction just go back to the basics of finding a tweak. Check tire size, left/right balance, front springs, bent/stressed/broken parts, etc.
So on that topic... how do you set tweak on these cars? The set screws on the flex plates are not true tweak screws.
I know the car shouldnt tweak itself as far as suspension is concerned, but tweak is also to corner ballance the car to equally distribute weight to all corners. My car does have some ballance issues that could be remedied with some simple tweak changes.
I know a few pages ago we talked about shimming the pivot ball on the aft part of the flex plate, but there seemed to be some concern that it would throw off the geometry or something.
Thoughts, ideas, comments?
#8114
Tech Fanatic
So on that topic... how do you set tweak on these cars? The set screws on the flex plates are not true tweak screws.
I know the car shouldnt tweak itself as far as suspension is concerned, but tweak is also to corner ballance the car to equally distribute weight to all corners. My car does have some ballance issues that could be remedied with some simple tweak changes.
I know a few pages ago we talked about shimming the pivot ball on the aft part of the flex plate, but there seemed to be some concern that it would throw off the geometry or something.
Thoughts, ideas, comments?
I know the car shouldnt tweak itself as far as suspension is concerned, but tweak is also to corner ballance the car to equally distribute weight to all corners. My car does have some ballance issues that could be remedied with some simple tweak changes.
I know a few pages ago we talked about shimming the pivot ball on the aft part of the flex plate, but there seemed to be some concern that it would throw off the geometry or something.
Thoughts, ideas, comments?
Despite extensive crash testing (!) there has never been a tweak in the car that could not be explained by some damage somewhere - and that is very rare. No, I don't know why, it just works! All the guys racing BMI at our Nationals have the same experience. HTH
#8115
Tech Lord
iTrader: (13)
So on that topic... how do you set tweak on these cars? The set screws on the flex plates are not true tweak screws.
I know the car shouldnt tweak itself as far as suspension is concerned, but tweak is also to corner ballance the car to equally distribute weight to all corners. My car does have some ballance issues that could be remedied with some simple tweak changes.
I know a few pages ago we talked about shimming the pivot ball on the aft part of the flex plate, but there seemed to be some concern that it would throw off the geometry or something.
Thoughts, ideas, comments?
I know the car shouldnt tweak itself as far as suspension is concerned, but tweak is also to corner ballance the car to equally distribute weight to all corners. My car does have some ballance issues that could be remedied with some simple tweak changes.
I know a few pages ago we talked about shimming the pivot ball on the aft part of the flex plate, but there seemed to be some concern that it would throw off the geometry or something.
Thoughts, ideas, comments?