Quote, originally posted by Coke in a Can »

no thanks to poor little armando

I hate to tell you this, but the DC5 suspension (struts) isn't such a great design for racing. However, some teams (Real Time, King Motorsports, and a plethora of Grand Am teams) and some individuals have gotten the best from a flawed design by running lots of static front camber and higher spring rates and ARB rates in the rear to get the car to rotate on the track.

My advice to you is to call Scott Zellner at King Motorsports and ask him what he recommends.

Aerodynamic Solutions Motorsports

http://www.kingmotorsports.com
http://www.hondata.com

this is news to me. please elaborate.

where did all my post counts go?

Quote, originally posted by pos_cd5 »

this is news to me. please elaborate.

MacPherson struts are inherently bad for tarmac due to their awful camber curve. Honda took a bad design and made it even worse by attaching the steering arms up high on the strut on the RSX, which caused dynamic toe problems.

With that said, in a production car nothing is ideal, so you have to work around it. As mentioned, running a lot of static front camber and using extreme spring rates so that the suspension doesn't move much are the "solutions." Unfortunately, a car set up in this way does not lend itself very well to daily driving.

I agree call Scott he really knows his stuff! This is actually comon knowledge that is why most teams went to the TSX since it is a double wishbone vs. mcphearson (sp?)

Not completely true, sure it was an added bonus but there are other reasons. The tsx will soon have a competitor for the top acura car.

If you have ever looked or dealt with a TSX then you know the rear suspension isn't without issues either.

I looked at one of the old davis cars this past weekend, and they were running exactly what davis had on the cars.

Front Springs looked to be 700 or 800 lbs couldn't really tell. In the rear they were running 4100 lbs springs with a speedway eng bar, i couldn't tell the thickness though.

that has got to be a typo......

Nope saw it clear as day Eibach ERS springs.

No one else believed me either, so they all went and looked.

5 inch 2.25 inch diameter and 4100lbs springs.

Real time got to just about those rates IIRC before they changed mounting points.

5" length and 4100lbs/in, how much travel did they have between each coil before binding??

I didn't touch the car cause no one was around just looked. And didn't have anything to messure. but i would say around .5 inch or so.

IMO the rear suspension with those rates, and that rear bar. There isn't much compression travel at the rear.

I had seen the RTR RSX's running 3200lbs 3 years ago i think.

Another RSX this past weekend was running springs between 3000 and 3500

Spring rate alone doesn't tell you much. Wheel rate is a much more useful calculation.

Please help one of our own

Also, camber is always near 0 in the rear. FWIW I believe the Spoon RSX (DC5 Integra) was running almost 6 degrees of static camber in the front.

But, if you are looking to make a decent HPDE car, get a good coilover setup that addresses a few of these issues (note: Megan is not a good coilover). Look for a front tierod attachment that has been altered to fix the angle, and look for rear shocks that have good quality poly bushings in them, because this is where the bind is.

For springrates, I'd start out with 500ft /1000rear with a big swaybar. You can daily drive this setup and it will be decent for an HPDE/autox. Key is keeping the rear spring twice that of the front. Race teams do it more than 4x the front.

For camber I'd do ~ 2.2 static front and .5 rear.

davis acura? if so, thats where i bought my rsx from

btw when i was watching the race a couple weeks back on the speed channel, they said that the advantage to running the rsx as opposed to the tsx was its shorter wheel base.

www.jdmspeedworx.com

EJ8--EM1--DC5--AP1

Quote, originally posted by Basskika »

For me its not about the superiority of the car, its what you can turn the car into.

why?

where did all my post counts go?