Hotchkis Springs with Which Sway Bars ? - Chevy Impala SS Forum
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post #1 of 30 (permalink) Old 10-15-2003, 12:34 AM
Mike Lowry
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I am getting ready to lower my SS with the Hotchkis lowering springs. Instead of using the Hotchkis sway bars, I want to go with the Hellwig front bar, and HO rear bar. I am also going to get the GW rear LCA's, HAL 12 way shocks, and the airlift 1000 air bags (just in case I am carrying a full load).

Do you think this set up will give me good handling? Either as good as an F-body or better? Also, is this setup likely to give me understeer, oversteer, or even neutral?

My biggest concern is the effect of the bars with the Hotchkis springs as most posts I have read about sway bars are used with the stock springs.

Thanks for your help

Mike
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post #2 of 30 (permalink) Old 10-15-2003, 06:58 AM
bengston
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Sounds like oversteer city.
Here is one post with HA's front and rear with Hotchkis springs and it was pretty near neutral, back off on the front bar and it seems like you be very oversteer prone;

https://www.impalassforum.com/cgi-bin...=002322#000000
post #3 of 30 (permalink) Old 10-15-2003, 08:11 AM
tbsimmons
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Unless he turns the front shocks up.
The Hellwig front is about 52.5% stiffer than stock, and the HO is 97.8.
The Hellwig rear is 71.3 and the HO is 441.4.It will be over steer, considering you keep the shocks the same, really so with the air bags.
I would go with the F-Car or the HO front if you want the HO rear, unless you turn the shocks up.
 
post #4 of 30 (permalink) Old 10-15-2003, 09:51 AM
bengston
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Shocks mainly apply to transient response. It seems like the non-transient breakaway in this case would be oversteer.

The issue here is that he is using Hotckis springs, which are designed to be used in conjunction with Hotchkis bars. The Hotchkis springs have more bias toward neutral handling than the stock spring setup, which is what the F/HA bars put into a neutral condition. Putting the F(or Helwig)/HA bars on with Hotckis springs would put the bias into oversteer, instead being of neutral.
post #5 of 30 (permalink) Old 10-15-2003, 12:36 PM
Mike Lowry
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Quote:
Originally posted by Wayne Bengston:
Shocks mainly apply to transient response. It seems like the non-transient breakaway in this case would be oversteer.

The issue here is that he is using Hotckis springs, which are designed to be used in conjunction with Hotchkis bars. The Hotchkis springs have more bias toward neutral handling than the stock spring setup, which is what the F/HA bars put into a neutral condition. Putting the F(or Helwig)/HA bars on with Hotckis springs would put the bias into oversteer, instead being of neutral.
Wow, is there a sway bar set I can use with the Hotchkis springs that will perform better than the Hotchkis swaybars without throwing the car too far from neutral?

Mike
post #6 of 30 (permalink) Old 10-15-2003, 01:38 PM
tbsimmons
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I should have said more, but I meant that if he wanted to use the HO rear, by his post I assume he already has the HO rear since he is asking about f-car bar. I agree to match the springs with the bars when going with Hotchkis.

Maybe I should have read over again before hitting reply.
post #7 of 30 (permalink) Old 10-15-2003, 01:48 PM
bengston
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From that linked post, sounds like going with HO front and rear bars in combination with the Hotckis springs will put the car pretty neutral.

Why not just go with the Hotckis bars and keep it a package?
post #8 of 30 (permalink) Old 10-15-2003, 07:15 PM
Mike Lowry
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Quote:
Originally posted by Wayne Bengston:
From that linked post, sounds like going with HO front and rear bars in combination with the Hotckis springs will put the car pretty neutral.

Why not just go with the Hotckis bars and keep it a package?
That would be my first best guess, but I have read that some dont like the Hotchkis bars because the rears have broken, and also they dont give you the best handling. I really dont know, which is why I am asking . But it seems like it would be best to match suspension parts by brand.

Mike
post #9 of 30 (permalink) Old 10-15-2003, 08:46 PM
bengston
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From what I understand, the complete Hotckis package gives pretty good handling.

I would expect the Hotckis springs combined with HO f/r bars to give more roll control than almost any other available combinations.

A possible exceptions would be GW front springs combined with the wagon springs and HOs F&R, though this would be higher than you want and possibly oversteer oriented. Has anyone run that combo?

At any rate, you reach a point when you have so much roll control that it can be too skittish on rough, broken, or wet pavement. Don't know if that would be the case here.

Maybe Ed will jump in.
post #10 of 30 (permalink) Old 10-15-2003, 09:11 PM
Erik
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I have the Hotchkis springs, HO rear and I've run both the F-body and HO front bar. Both are ok. HO front is better, i.e., more stable. F-body front bar was just a little bit squirrely, but never felt unsafe. I have never played with my shock settings (I have the HALs) to see what that will do to it. Right now, and when I had the F-body bar, I run them at 4 all around. HTH
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