mazdaspeed front sway bar
#26
No respecter of malarkey
iTrader: (25)
Originally Posted by r0tor
for reference, the MS sway is about 15% stiffer while the RB sway is about 50% stiffer then stock.
you better recalculate, you're off by a country mile plus some on that RB rate, better yet try Search, been discussed in detail in the Competition area
I still say they're not worth it and certainly aren't the only ones winning well, but it's no skin off my back ...
#27
Registered
iTrader: (1)
Join Date: May 2003
Location: PA
Posts: 3,754
Likes: 0
Received 0 Likes
on
0 Posts
well last time i opened one of my M.E. books the stiffness aka twist in degrees /(torque*length) of a thin wall tube was something like 1/((PI/2)*((rad outer^4)-(rad inner^4))*material constants) * (180deg/PI radians)
...so plugging in the advertised numbers thats what i got
...so plugging in the advertised numbers thats what i got
#28
Time of your life, kid...
Join Date: May 2004
Location: So Cal
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
I did the calcs a while back, and came up with the "J" section inertia value for the RB front bar as being 2.5 times that of the stock bar (rear was abotu 2 times stock, although the shape differences probably make the RB bar more of a stiffness increase over stock than just cross section would indicate).
I'm not sure about the accuracy of the dimensions for the stock front bar that I was using, and just ratioing the stiffness based on section values assumes that material, overall length, and distance from bar centerline to end link lugs are constant between the two parts.
regarding just one bar upgraded, I installed the RB kit (sways and coils) over 2 weekends - front first, and the car felt like a front-drive/front-engine car during agressive cornering in the intervening week.
I'm not sure about the accuracy of the dimensions for the stock front bar that I was using, and just ratioing the stiffness based on section values assumes that material, overall length, and distance from bar centerline to end link lugs are constant between the two parts.
regarding just one bar upgraded, I installed the RB kit (sways and coils) over 2 weekends - front first, and the car felt like a front-drive/front-engine car during agressive cornering in the intervening week.
#29
No respecter of malarkey
iTrader: (25)
Originally Posted by r0tor
well last time i opened one of my M.E. books the stiffness aka twist in degrees /(torque*length) of a thin wall tube was something like 1/((PI/2)*((rad outer^4)-(rad inner^4))*material constants) * (180deg/PI radians)
...so plugging in the advertised numbers thats what i got
...so plugging in the advertised numbers thats what i got
you should have "got" 233%
Thread
Thread Starter
Forum
Replies
Last Post
LMURailsplitter02
New Member Forum
1
09-06-2015 10:56 PM