4LikesTamiya TRF416 / TRF416WE / TRF416X
09-13-2010, 07:45 AM
#9691
roll center theory question??
Hopefully you guys can follow me here...
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
09-13-2010, 03:11 PM
#9693
Hopefully you guys can follow me here...
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
09-13-2010, 03:37 PM
#9694
TRF416X upgrade to 417
Looking at the new car, the changes are the lipo chassis, the motor mount, the rear diff.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
09-13-2010, 03:44 PM
#9695
Looking at the new car, the changes are the lipo chassis, the motor mount, the rear diff.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
09-13-2010, 04:27 PM
#9697
09-13-2010, 04:27 PM
#9698
Tech Adept
Looking at the new car, the changes are the lipo chassis, the motor mount, the rear diff.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
I have a TRF416X and want to upgrade it wit the Lipo chassis, does someone know if the TRF416X owners are going to be blessed with a "upgrade" kit?
I bought this car few months ago and really don't want to sell it to get another car, I am not in that rush for buying every new car launched, but would like to keep it up to date.
Afraid u will need to get the spares, which should be rear bulkheads, motormount chassis and top deck, and pulleys, don't get the diff a gear one will do
09-13-2010, 04:29 PM
#9699
Does anyone know if Marc Rheinhard's (or Victor Wilck's or another Tamiya sponsored driver's) setup for the IIC in Vegas is posted anywhere yet? I'm more interested in the # of turn motors that they were running in the Mod class. Thanks!
09-13-2010, 07:38 PM
#9702
Hopefully you guys can follow me here...
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
As we know, you can raise or lower your roll center by moving the camber links up or down and/or raising or lowering the suspension mount blocks. For the sake of my hypothetical question I'll stick to front suspension and the inner camber link position.
Scenario A: I use 3 mm of spacers on the inner camber link and have 0mm of spacers on the suspension mounts for a roll center value of X.
Scenario B: I use 4 mm of spacers on the inner camber link and have .5mm of spacers on the suspension mounts this for a roll center value of X.
So even though the roll center values of scenarios A and b are the same (X), what would be the difference in handling? Would this change camber gain? What other effects would it have?
Roll centre calculator:
http://www.rctech.net/forum/5382752-post4285.html
http://www.thard.co.uk/viewtopic.php?f=24&t=145
09-13-2010, 08:01 PM
#9703
Changing roll center via the camber link is very different than the suspension blocks. Raising/lowering the blocks makes very large changes, while altering camber link angle makes a relatively small difference. Here is a drawing I made that illustrates this...
BTW: You may also notice that raising the upper link lowers the roll center, while raising the suspension blocks raises roll center...
BTW: You may also notice that raising the upper link lowers the roll center, while raising the suspension blocks raises roll center...
09-13-2010, 08:21 PM
#9704
I ran Jilles Snowbirds setup at IIC and the car was magical. I, however, was not. I made the A in stock and B in super stock. I don't think I put in a single clean run in either class. The car was there when I'd start to push, and I could usually get away from people. But, there was always some board there to ruin my day.
09-13-2010, 08:37 PM
#9705
Can wait to get another car.