@jvp was kind enough to bring his new 5BW with the precision package over yesterday. We thought it would be fun to do a back to back test drive of his car and my 22 with the standard suspension. Same day, same route, both on the PS4 tires. This video breaks down my impressions and does a bit of a data dive specific to ride quality.
CT5-V Precision Pack Ride Quality Analysis
- Thread starter poor-sha
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CT5-V Model
FLYARMY
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- 2022 CT5-V Blackwing
I have a calibrated ass that tells me how my ride is going. 
nordique14
Seasoned Member
Very cool to see the data support the subjective options most people have regarding the precision package ride quality.
That's pretty nice data. I too would love to see a histogram comparison and a FFT with a power spectral density could also be useful in comparing them. I'm not surprised the small imperfections are felt more with the stiffer bushings. Now I'm wondering if I should change my order to a PP.
leres
Seasoned Member
From what I remember changes to an order in the system can only happen if the event code is
fordperfaddict
Seasoned Member
I watched the video, thanks for doing it as it is very informative
so, if price was not a factor. would you switch to a PP car after driving in both?
so, if price was not a factor. would you switch to a PP car after driving in both?
In a heartbeat.
fordperfaddict
Seasoned Member
i guess i should ask this to clarify.
would you swap for daily duties?
i just noticed you have the dashcam on at the track, but i dont know how often you go and do that
I have the PDR option which I use for video and data collection on track.
I will caveat that this is highly personal and subjective. The main takeaway for me was that the PP didn't affect ride quality adversely enough that I wouldn't want it on the road. I really won't know the difference in track performance unless I get a chance to drive @jvp's car on track at a reasonable pace. Given the quality of GM's engineers, I'm sure it is an improvement.
If the car was never going to touch a track where you can truly push the limits of the car, I don't think I'd buy the PP. The standard suspension is already more performance than you can really exploit on public roads, and the ride quality is excellent.
jbawden
Seasoned Member
I love my CCB's but $9k is a tough pill. The benefits of PP for most of us is far too ambiguous to justify another $9k on top of CCB's. With that said, the rear toe link on the std suspension is inadequate, but I can fix that for a LOT less than $9k.
fordperfaddict
Seasoned Member
so, on the street. it doesnt provide enough thri
how often are you tracking your car?
Does it add any excitement or a better driving experience as a pure daily in your opinion?
Thanks for doing this! Not sure there is enough fidelity, but doing a quick visual overlay it looks like the stiffer bushings add a bit of harshness at the higher frequency (>1.5hz) which makes sense. Looks like the low freq stuff is almost the same, which is nice to see. Means the bug bumps won't really be different, but the small high frequency vibrations will be felt a bit more with the PP.
My car is still in the 1100 state so I can still add this if I want. Not totally sure. Really wish there was an easy way to feel the difference in person.
nordique14
Seasoned Member
If you generally prefer a slightly firmer, more precise ride over a softer ride then you will not regret the precision package. If you are already getting carbon ceramic brakes, then changing to the precision package is not as big a jump in price.
GTANotch88
Seasoned Member
In general, is there any benefit to installing the aluminum rear links on a non-precision package car? I assume it just allows more adjustability for neg camber and just a more solid piece than the stamped steel part.
I drag race and ideally want as close to 0 camber so I'm not sure if the more track oriented alignment the aluminum links provide would actually negatively affect me. I picked up a set of the pp links but now questioning if they would help or not.
I drag race and ideally want as close to 0 camber so I'm not sure if the more track oriented alignment the aluminum links provide would actually negatively affect me. I picked up a set of the pp links but now questioning if they would help or not.
Kawman
Seasoned Member
The aluminum toe link has the same benefit to a PP car as a non PP car. It allows you to have more camber.
If you want zero toe, than you do not want the aluminum toe link.
Not knowing the real numbers, but providing an example. Let's say both parts provide the same range of adjustability of 1.5 degrees. With the original part you can achieve a range of toe between 0 and -1.5. With the shorter aluminum PP toe link installed, you have a rang of adjustability between -.5 and -2.0 degrees camber. The aluminum toe link does not have the range of adjustment to become as long as the other part and therefor with the aluminum toe link you can not get to 0 toe.
Aside from the springs being stiffer with a PP car, does it sit lower? When I changed my springs, that lowered the car 3/4". That changed the geometry in the rear end and the OEM toe link was now too long to fit. I had to go to a shorter toe link to achieve the same toe as before. If you lower the car you may be able to achieve 0 toe with the aluminum PP toe link.
jbawden
Seasoned Member
Outside of dialing in the geometry, the main reason GM added these billet toe links to the PP is the same reason Camaro folk have been doing it for years; to eliminate the toe deflection these cars exhibit under hard acceleration and cornering. The rear squirm we feel are the OEM rubber bushings and cheap un boxed steel stampings deflecting and temporarily altering toe settings. So to that point, the PP links would make the car feel more planted at the drag strip, but may not do anything for your times. That's why you @GTANotch88 should sell them to me 
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