ACR guys. . .

[MtHam ACR]

Anyone have a detailed spec for the 2001 ACR?

I found this in my meanderings, but threads here point to differences in the shocks/suspension for different years. Anyone have details? I would be curious to know spring rates as well.

Thanks,
Eric
01ACR

=============

LIMITED PRODUCT ESTIMATED - 200 UNITS

1999 Dodge Viper ACR includes all 1999 Dodge Viper features and specifications except for the following additions, deletions and changes:

Horsepower: 460 @5,200 rpm

Torque: 500 lb-ft @ 3,700 rpm

Wheel type: One-piece BBS forged aluminum with chrome Viper Head center caps

Shocks: GTS-R-style aluminum-bodied Koni racing shock absorbers, double acting, high-pressure gas-charged, externally adjustable for bump and rebound

Springs: GTS-R-style 2.25" I.D. racing spring rates

Overall height: 47.0"

Track, front: 59.6" Track, rear: 60.6"

Curb weight: 3,356 lb

Restraint system: Supplemental five-point

Filters: K&N

Deletions: Driving lamps (replaced with vents), air conditioning system/compressor, 200-amp Alpine audio system (A/C and audio system can be added as optional Comfort Group)

Additions: ACR badging and graphics, including interior identification plaque

Exterior colors: Same as Viper GTS.

 

[MtHam ACR]

Thanks Jon, and that's quite a difference. Do you have any discussion on the motivation for change? Was this a racing team input? Did they change the shock at the same time?

Thanks,
Eric

 

[ACR Larry]

Loaded question Eric!

Do some searches on the Koni rattler shock controversy.

P.S. Get that oil changed yet?

 

[JonB]

2000.5 2002 ACR Spring rates are 500 lb/in F and 1100 R

1999-2000.5 ACR were 400F 750R

 

[MtHam ACR]

ACR Autopia:

Interesting reading, thanks for the tip. The takeaway seems to be the Dynamic Systems shocks use a high spring rate to compensate for under-performance, true?

My plans are not to drive the car on the edge. But I do enjoy opentrack events maybe half a dozen times a year. At the same time I would like to have a reasonable ride quality when I drive the car on the street.

The rear springs seem pretty taught -- there is one freeway dip in my area in which I can hit my head on the roof with no effort -- I'm talking not exceeding the posted limit. There is also a pretty persistent rebound bounce.

So what are folks doing about it? Living with it? Some guys are happy with the ride, others are rationalizing it -- but that doesn't sound right for a $90K car. Anyone with DSI shocks tried lower rear spring rates? I'd be interested in hearing your results

On the oil change -- no, but filter and oil are awaiting my attention in the garage, I won't be driving it until I can get to the change after xmas. Any tips for oil changing I should be aware of? Thanks,

Eric