B'klyn9C1
04-12-2010, 06:51 PM
I finally completed my total suspension rebuild on my '95 Chevy Caprice (Police Package)9C1. Which consist of:
Power Performance Motorsports' Auto-X springs @ 715 LBS(linear rate) for the fronts & 165 LBS(also linear rate) for the rear,
Bill Harper's modified Front control arms upper and lower w/Moog HD bushings,
ZQ8 bumpstops,
Hellwig front bar, B-Body Performance's 1 1/4" rear bar because the 1 5/16" wasn't available,
Bilstein AK1053 front shocks & Bilstein 0929 rear shocks,
**** Miller Racing's rear upper control arm to lower control arm frame brace
Currie's upper and lower control arms w/"Johnny Joints"
Lee Manufacturing steering box
Borgeson intermediate steering shaft b/c the Jeep Cherokee shaft was falling apart.
For wheels and tires I'm running 18" x 9.5" Corvette C5 wheels shod w/Continental Extreme Contact DWS A/S in the 275/40-18 tire size w/ Rustics Racing wheel adapters.
At first I was kind of sorry I went so radical on the springs I thought I might get uesd to it or it sofen up a little. But The ride quality is still crappy and the car is easliy upset with minor road imperfections. Which we have in over abundance in NYC!!!
Another thing I got to say I am sure glad I put in my 12-way 1996 Pontiac Bonneville seats in before I did my suspension project. Those 9C1 bench seats with a sport suspension would not have cut it at all on NewYork City streets that's been super salted and potholed after a bad winter.
Right now I have Great handling!! Killer stance!!(The car sits level ar approximately little over 1" lower than stock Impala SS ride height.) Way too crappy a ride!! Especially here in the the New York City area after a bad winter. At least with my new suspension, Lee steering box and Borgeson steering shaft my big boat 9C1 dodges potholes like a Miata.
To all you guys/gals who run the B-Body(or other GM body-on-frame chassis' like the A-Body and G-Body)on the Auto-X and road course. How are the B-Body Performance, Hotchkis and other versions of the Vogtland progressive rate springs how are they on the Auto-X course and road course as compared to the stiff linear rate springs like Power Performance Motor's and Rustic's 750 LBS Springs????
Would I loose much handling and what would I gain in ride comfort in going to the Vogtlands or should I just keep the Power Performance Motorsports linear rate springs and seek to improve my ride quality elsewhere????
Maybe change the shocks???
One last thing I've to mention relative to progressive rate springs. I noticed that Roush Performance uses progressive rate for their lowering springs for the 2009-2010 Mustang. Also in the April 2010 issue of Car & Driver magazine gave the Roush Stage 3 Mustang a much better write up (suspension wise) over the 2010 Lingenfelter Camaro SS. They it was much more settled over bumpy back roads than the LPE Camaro even though it has a solid live rear axle compared to the Camaro's IRS.
Let me thank you in advance for your opinions and advice. I must my car now has sports car handling. I never thought a car this big can handle curves this well.
Det. Colin D. Wilson, NYPD
B'klyn9C1 on the impalassforum and Pro-Touring.com (https://www.pro-touring.com/) Forum
Brooklyn, NY
__________________
Power Performance Motorsports' Auto-X springs @ 715 LBS(linear rate) for the fronts & 165 LBS(also linear rate) for the rear,
Bill Harper's modified Front control arms upper and lower w/Moog HD bushings,
ZQ8 bumpstops,
Hellwig front bar, B-Body Performance's 1 1/4" rear bar because the 1 5/16" wasn't available,
Bilstein AK1053 front shocks & Bilstein 0929 rear shocks,
**** Miller Racing's rear upper control arm to lower control arm frame brace
Currie's upper and lower control arms w/"Johnny Joints"
Lee Manufacturing steering box
Borgeson intermediate steering shaft b/c the Jeep Cherokee shaft was falling apart.
For wheels and tires I'm running 18" x 9.5" Corvette C5 wheels shod w/Continental Extreme Contact DWS A/S in the 275/40-18 tire size w/ Rustics Racing wheel adapters.
At first I was kind of sorry I went so radical on the springs I thought I might get uesd to it or it sofen up a little. But The ride quality is still crappy and the car is easliy upset with minor road imperfections. Which we have in over abundance in NYC!!!
Another thing I got to say I am sure glad I put in my 12-way 1996 Pontiac Bonneville seats in before I did my suspension project. Those 9C1 bench seats with a sport suspension would not have cut it at all on NewYork City streets that's been super salted and potholed after a bad winter.
Right now I have Great handling!! Killer stance!!(The car sits level ar approximately little over 1" lower than stock Impala SS ride height.) Way too crappy a ride!! Especially here in the the New York City area after a bad winter. At least with my new suspension, Lee steering box and Borgeson steering shaft my big boat 9C1 dodges potholes like a Miata.
To all you guys/gals who run the B-Body(or other GM body-on-frame chassis' like the A-Body and G-Body)on the Auto-X and road course. How are the B-Body Performance, Hotchkis and other versions of the Vogtland progressive rate springs how are they on the Auto-X course and road course as compared to the stiff linear rate springs like Power Performance Motor's and Rustic's 750 LBS Springs????
Would I loose much handling and what would I gain in ride comfort in going to the Vogtlands or should I just keep the Power Performance Motorsports linear rate springs and seek to improve my ride quality elsewhere????
Maybe change the shocks???
One last thing I've to mention relative to progressive rate springs. I noticed that Roush Performance uses progressive rate for their lowering springs for the 2009-2010 Mustang. Also in the April 2010 issue of Car & Driver magazine gave the Roush Stage 3 Mustang a much better write up (suspension wise) over the 2010 Lingenfelter Camaro SS. They it was much more settled over bumpy back roads than the LPE Camaro even though it has a solid live rear axle compared to the Camaro's IRS.
Let me thank you in advance for your opinions and advice. I must my car now has sports car handling. I never thought a car this big can handle curves this well.
Det. Colin D. Wilson, NYPD
B'klyn9C1 on the impalassforum and Pro-Touring.com (https://www.pro-touring.com/) Forum
Brooklyn, NY
__________________