Can the DC5 chassis be made to handle as well as the DC/EG/EK
Thread Starter
"Haters Gonna Hate"
Joined: Dec 2000
Posts: 6,898
Likes: 3
From: GDD Bond King, AZ, USA
Can the DC5 chassis be made to handle as well as the DC/EG/EK
I have read that the front suspension geometry is not that great (compared to the DC/EG and the newer 06 Si). Additionally, I have also heard that you can not lower the car a lot without screwing up the geometry and getting some bumpsteer. What is the cause of this? Also, is it possible to make a DC5 handle as well or better than the DC2/EG? Is it possible to have a great handling & lowered (I'm thinking @ 2" drop) DC5? Thanks!
Honda-Tech Member
Joined: Mar 2004
Posts: 5,008
Likes: 1
Re: Can the DC5 chassis be made to handle as well as the DC/EG/EK (FrostyDC4)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FrostyDC4 »</TD></TR><TR><TD CLASS="quote">I have read that the front suspension geometry is not that great (compared to the DC/EG and the newer 06 Si). Additionally, I have also heard that you can not lower the car a lot without screwing up the geometry and getting some bumpsteer. What is the cause of this? Also, is it possible to make a DC5 handle as well or better than the DC2/EG? Is it possible to have a great handling & lowered (I'm thinking @ 2" drop) DC5? Thanks!</TD></TR></TABLE>
Well let's see...
WHAT IS ROLL CENTER ?
While a vehicle corners, the movement of suspension is focused on the intersection (instant center) of the lines extended from the upper and lower suspension arms. The intersection between the line from where the wheel contacts the road to the instant center (Point P) and the vehicle body centerline is the roll center (Point B). With the stock suspension, the appropriate roll center has already been set from the factory. (Fig. 1)
ROLL INCREASES AFTER LOWERING?
Simply lowering the car results in an increase in the distance between the center of mass (Point A) and roll center (Point B) of the vehicle, even though the center of mass has dropped. When the distance between Point A and B increases, roll stiffness decreases, causing an increase in the amount of roll. The amount of roll can be controlled with the use of stiffer springs, but ride quality etc. suffers as a result. Cornering speed does not increase like originally thought. (Fig. 2)
ROLL CENTER ADJUSTED !
With the Roll Center Adjuster in place, the angle of the lower are is revised. Roll center (Point B) is once again close to the center of mass (Point A) of the vehicle. With the lowered center of mass and increased roll stiffness, the limit of cornering speed increases.
ROLL CENTER ADJUSTER FF
When a FF vehicle is lowered, the angle of the lower arm becomes poor, resulting in a significantly lowered roll center. Consequently, the amount of roll in corners increase and the cornering force is sacrificed. By extending the ball joint of the front knuckle, the position of the roll center is altered. Replacing the stock ball joint with this product will result in reduced roll, and cornering force as a result is increased. Steering response is also improved.
The bolded part is a partial solution.
Well let's see...
WHAT IS ROLL CENTER ?
While a vehicle corners, the movement of suspension is focused on the intersection (instant center) of the lines extended from the upper and lower suspension arms. The intersection between the line from where the wheel contacts the road to the instant center (Point P) and the vehicle body centerline is the roll center (Point B). With the stock suspension, the appropriate roll center has already been set from the factory. (Fig. 1)
ROLL INCREASES AFTER LOWERING?
Simply lowering the car results in an increase in the distance between the center of mass (Point A) and roll center (Point B) of the vehicle, even though the center of mass has dropped. When the distance between Point A and B increases, roll stiffness decreases, causing an increase in the amount of roll. The amount of roll can be controlled with the use of stiffer springs, but ride quality etc. suffers as a result. Cornering speed does not increase like originally thought. (Fig. 2)
ROLL CENTER ADJUSTED !
With the Roll Center Adjuster in place, the angle of the lower are is revised. Roll center (Point B) is once again close to the center of mass (Point A) of the vehicle. With the lowered center of mass and increased roll stiffness, the limit of cornering speed increases.
ROLL CENTER ADJUSTER FF
When a FF vehicle is lowered, the angle of the lower arm becomes poor, resulting in a significantly lowered roll center. Consequently, the amount of roll in corners increase and the cornering force is sacrificed. By extending the ball joint of the front knuckle, the position of the roll center is altered. Replacing the stock ball joint with this product will result in reduced roll, and cornering force as a result is increased. Steering response is also improved.
The bolded part is a partial solution.
Thread
Thread Starter
Forum
Replies
Last Post
hic.d.out
Welding / Fabrication
4
Jul 30, 2012 11:51 AM
sk8shorty012
Honda Civic / Del Sol (1992 - 2000)
31
Mar 9, 2011 10:24 AM
