What should I expect? - Chevy Impala SS Forum
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post #1 of 13 (permalink) Old 02-12-2004, 03:46 PM
BLAZN
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I think this might be my first or second post here... I'm not very active, that's certain.

Anyway... I'm planning a suspension rebuild (shocks, springs, bushings). Here's the plan so far:
Springs = OEM Impala SS springs from Dal Slabaugh
Shocks = Bilstein sports from Shox.com
Bushings = Energy Suspension Hyperflex (Del-a-Lums look appealing, but waay too costly) from SummitRacing.com
Sway bars will be the stock 9C1 pieces, but the swaybar to frame bushings will be ES poly units.

Once I put these on, what should I expect as far as everyday driving goes, as far as occasional autocrossing (mainly for the thrill... I don't expect to be a bigger winner, as I don't have the skill) goes, and as far as frequent drag racing goes.

Also... If I can find a full on Hotchkis set up for a reasonable price (NOTHING is truely reasonably priced here in Hawaii), should I jump on it?
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post #2 of 13 (permalink) Old 02-12-2004, 07:30 PM
AutocroSSer
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If you're not gonna do the Del-a-lums (and I'd strongly urge you to reconsider that one.....uppers AND lowers are only about $150 total more than the ES uppers and lowers), I'd instead go with Moog rubber bushings.

Poly has downsides, especially on control arm bushings.
post #3 of 13 (permalink) Old 02-12-2004, 07:47 PM
BLAZN
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Quote:
Originally posted by AutocroSSer:
If you're not gonna do the Del-a-lums (and I'd strongly urge you to reconsider that one.....uppers AND lowers are only about $150 total more than the ES uppers and lowers), I'd instead go with Moog rubber bushings.
Having spent much time researching... I can only find Del-a-lums for the rear, ringing in at something like $244 (total price, upper and lower from Year One through Global West). I can land a complete set of the Hyperflex bushings for $165 ($79 savings). Having not been able to find any Del-a-lums for the front at all, it seems my best bet is to go with the Hyperflex bushings.
As for the Moog bushings... how quickly is the rubber likely to break down?

Quote:
Originally posted by AutocroSSer:
Poly has downsides, especially on control arm bushings.
Besides the sqeeking, what are other issues?
 
post #4 of 13 (permalink) Old 02-12-2004, 08:04 PM
bengston
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Global West

Give them a call...
post #5 of 13 (permalink) Old 02-12-2004, 08:23 PM
AutocroSSer
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You either mis-read the YearOne ad, or YearOne's info is downright wrong.

All 8 Del-a-lum bushings for the FRONT are around $240, direct from GW. Expect to spend close to $100 for just those bushings in Poly.

In back, you should REALLY be looking at aftermarket arms. Putting better bushings in those turds of stock rear arms leaves you with, well, a couple of polished turds for rear arms [img]smile.gif[/img] . While the stock rear bushings leave a bit to be desired back there, the bigger issue is that the arm stampings themselves are JUNK.

Other downsides to poly for control arm bushings are two :</font>
  • "Cold Flow", where the poly will basically flow and change shape (i.e. deform) over time</font>
  • They still bind up, just like stock bushings. The Del-a-lums do NOT bind....at all. To the point that you can FULLY torque them in any position! This makes the install of the Del-a-lum parts a bit easier than poly or rubber bushed parts.</font>
post #6 of 13 (permalink) Old 02-12-2004, 09:24 PM
BLAZN
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8 Front Del-a-lums for $240... what about the rear? Why can't they have this stuff on their site? I hate calling places... everyone is always hours ahead of me, so I have to do things early when I'm not functioning fully. [img]smile.gif[/img]
If the Del-a-lums will save me money and time in the long run... I'll go with them, especially if there is a very marked increase in performance.

As for the new rear control arms... in the plans. My biggest concern right now, though slanted toward performance, is to make my suspension much firmer. Right now, everything is so soft that I feel like I'm going to sea everytime I drive my car!
post #7 of 13 (permalink) Old 02-13-2004, 01:42 AM
AutocroSSer
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For the rear, you would get the GW lower arms (if you want "top of the line") that have Del-a-lums in the axle side and lined spherical bushings (thus, they are quiet) for the frame side. GW actually recommends sticking with stockers for the upper arms.

If you want to go with a less expensive rear lower arm upgrade, then go with the "stock length" BMR lowers. They are quite a bit stronger than stock, and include poly bushings (which, while not ideal, is better than stock bushings here).
post #8 of 13 (permalink) Old 02-13-2004, 03:53 AM
BLAZN
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I'm seriously contemplating the GW rear LCA's... Seems like a ton of bang for the buck. I think my UCA's might need some refreshening though.
post #9 of 13 (permalink) Old 02-17-2004, 06:12 PM
Dads95ss
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Soory about getting in late on this topic...

Ed - Are Del a lum bushings too harsh for a daily driver? I use my car everyday, autocross at least 8 times a year, pull a folding camping trailer on vacation and generally hang with M3/STI/RSX-S folks. They laugh at me trying to make this car handle but I surprize them by being within several seconds of them on most autocross courses.

My wife's car is a 325is so I know what a good handling car is.

Thanks for your advice.

Frank
post #10 of 13 (permalink) Old 02-17-2004, 06:20 PM
AutocroSSer
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No, the Del-a-lums aren't harsh really at all. They just make the suspension components themselves that SHOULD move (i.e. the springs) do their job more effectively.

And the "little secret" is that on all but the tightest of autocross courses, my SS is still probably faster than my WRX . Granted the SS is on wider AND stickier tires (I run the WRX in STX class, which requires street tires with treadwear rating of 140 or above) but the BeaSSt still surprises people
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