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Discussion Starter · #1 ·
I swapped my front springs back to stock today. I kept the rear Eibachs for now, and the Bilstein shocks and struts.

The front wheel gap grew only 3/4"; the rear did no change. Now the car is level at least what comes to wheel gap. Before it had this cat presenting stance.

So far the change is all positive. The rear was always good, now the front is good too. There's no crashing in potholes, but it's not exactly soft either. The car is much more planted and less nervous on highway. It does not require tightening grip in the steering wheel in long heaves now. Cowl shake and steering column jiggle is much improved; that was the biggest reason I switched back.

The Eibachs in the rear still help keep the body lean at minimum in cornering. Steering response is not as sharp anymore, more a Volvo than a slot car. But I can live with that.


 

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Re: holy wheel gap, batman! (Mika)

Quote, originally posted by Mika »

The Eibachs in the rear still help keep the body lean at minimum in cornering. Steering response is not as sharp anymore, more a Volvo than a slot car. But I can live with that.

I am going to state the obvious here .. but I assume you are aware that this will build in more oversteering characteristics.

Albeit the car could be heavily biased towards understeering so it may still understeer but just less .. but anyway just be careful! Hopefully it won't catch you out, or hopefully your driving skills can handle some oversteer
 

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Discussion Starter · #6 ·
Re: holy wheel gap, batman! (SML)

Oh I love oversteer, and absolutely despise understeer. I learned to drive on snow and ice with rear and front drive cars and I still have the reflexes to catch the car whatever the rear end does. That said, there's a tad more initial understeer now at least on dry asphalt with less negative camber.

I'm gonna drive a while with this setup, and may go to full stock later if it I don't like this after all. Or I may do something else. Playing with suspension setup (not just lowering, but looking for specific dynamic changes) is actually quite fun.
 

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Re: holy wheel gap, batman! (Mika)

Quote, originally posted by Mika »

I'm gonna drive a while with this setup, and may go to full stock later if it I don't like this after all. Or I may do something else. Playing with suspension setup (not just lowering, but looking for specific dynamic changes) is actually quite fun.
Have you thought about going with Konis to smoothen out the ride? Nothing against the Bilsteins but i heard it isnt the most comfortable with lowering springs.
 

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Re: (shagginwagon)

Yeah, I am curious too about this steering and cowl shake. That doesn't seen normal to me. I am about to drop my Eibach/FSD's in, and I'll be quite upset if there is shimmy and sketchiness on the highway.

I';ll be getting a good 4-wheel alignment after the install, rotating the tires and a re-balance. to curb all that.
 

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Re: (Rezin S60T5)

Mika,

If You want to keep the OEM sportssuspension height, You can use the H&R V70 springs. Certain people use H&R in front and Eibach for the rear suspension, this way the car is absolutely horizontal. The steering with the H&R's is very precise and You don't have the crashing from the OEM suspension, but on bad roads they are a little bid harsh. On highway's the H&R suspension is very comfortable and the roadholding is fabulous.

Johan DS
 

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Discussion Starter · #11 ·
About the cowl shake: I'm just very sensitive to any flex in the chassis, someone else might not pay much attention to it. It's a lot to do with the type of roads one's driving. In my old commute route it was ok, but now I got these high speed sections with peculiarly patterned concrete stretches and long heaves.

The major part of the front tuning is definitely the HDs. They have already almost 30k on them so I'll need to try change them at some point. FSDs came to my mind too. The HDs don't have proper rebound damping for lowering springs, but they are a tad too stiff in compression for stock T5 springs in my opinion. I might even try the Sports with Eibachs again, who knows...

I had the Sports in my Impala SS and they were really good in that particular application.
 

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Discussion Starter · #12 ·
Re: (Rezin S60T5)

Eibach/HD combo is very sensitive to alignment; it took me a few tries to get it right. Also the tires made a huge difference. Kumhos with softer sidewalls and more grip worked so much better than Potenzas. I'd also like a little more wheel offset (narrower track). I noticed a big change in tracking and steering kickback when going to 5mm smaller offset.

I have to say that all these things are very minor and about fine tuning the ride. For people who have too much time on their hands.
 
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