Did the front bar, Not bad if you use the Eibach instructions, you will need a alignment after because you have to losen up the steering rack for clearance. Had I thought about it I would have put a mark on the steering rack and the mount to put it back exactly the way it came off. The instructions are for a c8 without front end lift. my car has front end lift so I just unpluged the coilover and zip tied it to the side. 4-5 hour job at a "im not in a rush pace". the Eibach bars are not as aggressive as the AFE bars.

 

^
Nice job. I steered away from this one due to I only have a Max Jax lift (little lift) at the time. If I had my big lift installed I would have easily taken it on. Age, I tell yea. Alignment for sure.

Does Eibach have or give you endlinks?

 

Eibach & aFe supply bushings and brackets, but both retain factory end-links.

 

I was just curious if they had went that far with the end links. Seems no one is making adjustable ones. But I’ve already have that in the works with a great vender here. Not immediately but coming. My AFE’s definitely has binding/ preload. Not usually a big deal but I like the idea of less or no preload on the bars. Or just anything closer to a race car. .

 

Makes sense! Not sure who you're working with, but I always had great experiences with Whiteline's adjustable end-links.

 

"Swaybars" are really a bit of a kludge... what they do is add effective spring-rate under cornering... the theory being soft springs can be used for smooth ride in a straight line, and the "Swaybar" only comes into play when you turn... somewhat correct when you are talking about your father's Oldsmobile...actually a pretty cheap and clever idea.

(BTW the term "Swaybar" falls into the same Marketing Mumbo Jumbo category as calling Dampers "Shock Absorbers"...)

Theoretically, in a racing application, if the main spring rates are set perfectly, a "Sway Bar" is unnecessary, but in the real world, Sway Bars are useful to fine-tune the spring rate for a given car, and turn...

Remember, under static load (e.g. at the apex)...the spring rate (main + swaybar) determines how the weight of the car is distributed between the tires... if the spring rate is biased to the front, the car will tend to under-steer, if to the back, it will tend to oversteer as you are asking one end of the car to handle more than it's proper share of the cornering load.... this is why "adding rear bar" tends to correct understeer or cause oversteer.

Ideally, the main springs should be about 90% right, and the Sway Bars allow the +/- 10% change required to hit the target.

Now don't forget that Dampers ("Shocks") also enter in by managing effective spring rate during "Transients"... these occur when weight is being transferred from one steady state to another... this occurs as brakes are applied and released, steering input is changes and/or throttle is applied... at any point in a turn the instantaneous spring rate is the sum of these three elements, and they change constantly throughout the turn...

Bottom line, if all three of these elements are not tuned to work in concert, the car can end up handling like crap...

The engineers at Porsche, Corvette etc, really sweat this stuff, so if you are modifying the suspension, do a complete package developed by a good tuning shop that is designed for your intended use.

 

I used a max jack.

 

the spring rate of the selected tire also comes into play when doing a suspension set up. Im going to run a wide aray of tires from Michelin S9M to 220tw, so some adjustability of the anti-sway bars will help. The stock z51 spriings are very soft, and where my car needs help is corner entry, and to some extent midcorner transition. So this should help. The Eibach bars are not as agressive as the AFE bars and front and rear are 32 mm so its not a huge change. I don't plan on doing Penske coil overs, so some tuning with the bars and to a little extent rear ride height is going to be it.

 

Yes, if I were doing aftermarket swaybars, they should be adjustable... the whole point of swaybars is to "tune" the suspension... can't do that if they are fixed.

BTW, I tracked my 2016 Z51 numerous times... just a dual use street/track buggy... only mod was brake pads and MPSC2 tires, and I cannot tell you how impressive the MSRC shocks are on this car... it was dead flat through the turns, and utterly stable at all times... you could absolutely crush it over curbs, and it would just shrug it off..

At turn-in and through the apex this dead-stock streetcar could keep up with full race 996 and Cayman S race cars on Hoosiers... now it couldn't get the power down at exit...(probably why Tadge and Co. went to Mid-engine design)... and I'd get a**hatted... but I could just drive the car home as do an oil change... (last laugh)

My buddies are crawling all over their cars adjusting their $10K Penske and JRZ 3-ways, and I'm just chilling with a flavored seltzer.... the Mag Shocks do all the work for you.... just a hint...

 

Has anyone tried putting the AFE bar in as per the Eibach instructions unbolting the lower control arm and steering rack? I know the bar is 3mm thicker than Eibach and is probably just enough to not fit without lowering the cradle as everyone has done. Just curious if the method had been tried. Getting ready to install coilovers when they get here in a couple weeks and might as well do sway bars at same time.

 

GSpeed now sells the Eibach springs and bars as a kit and seems the adjustable end links will also be available for the C8.

 

The beginning of this year I purchased a used AFE rear sway bar for C8 Stingray that came with adjustable end links. Never got to install but might on my incoming C8Z

 

if you have the front-end lift, you will have to take the pump off the bracket and push it aside to snake the bar in.

 

Update: The rear swaybar bushings started creaking a bit over bumps and transitions. Probably just would have needed some more grease, but Eibach sent me a new set of replacement bushings and additional grease. I swapped them out this morning and gooped 'em up real good this time (I used what they sent plus some leftovers I had in my toolbox)!

I guess this is why aFe includes zerk fittings on their mounts...

 

Do know what brand end links? Going out today to finally measure and possibly just order my own hardware. Eibach still claims they don’t have any for the C8. Which is odd because their website says you can custom order any sizes. The guy on the phone really didn’t seem like he was knowledgeable. Seems he was a new employee.

 

Eibach part #AK41-23-036-01-20

https://eibach.com/product/AK41-23-036-01-20?epsid=2909

 

Thats interesting turn of events. Thank you. Do they make the rears also?

 

These are the only ones I see listed. Perhaps they fit front & rear? I see some of the aftermarket options available from RockAuto list fitment as front & rear.

 

Any details now on the C8Z06 bar sizes relative to the C8Z51?

 

I haven't heard yet. I'll keep my eye out and update with what we learn.

On the C7, they used bushing durometer to make small tweaks so it's possible we see that on the C8 as well.