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Can Someone Explain These "Geometry Corrected"? #1724586
01/08/15 04:30 AM
01/08/15 04:30 AM
Joined: Jan 2003
Posts: 8,089
Sorrento, BC, Canada
4speeds4me Offline OP
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4speeds4me  Offline OP
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http://www.hotchkis.net/mopar_b_body_geometry_corrected_sport_leaf_springs.html

What is corrected/changed? Decent piece? Wasn't going to get too twisted on the rear of the Charger, but found a good deal on a set.

Thanks!


2 Demons...no, not my kids!
Re: Can Someone Explain These "Geometry Corrected"? [Re: 4speeds4me] #1724587
01/08/15 12:45 PM
01/08/15 12:45 PM
Joined: Oct 2012
Posts: 1,106
Northeast
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VincentVega Offline
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Northeast
I'm sure if you called or emailed them, they'd tell you.

From what I remember, they shorten the spring length between the front mount and the axle, I think the forward bracket is extended for this purpose. They may even angle them inboard or outboard a bit. They are doing whatever they feel "improves" the stock suspension.

Bear in mind that you should always modernize suspension at both ends at the same time or you'll wind up with something that can be unpredictable and unsafe. Personally, I think the factory geometry is fine.

I think the best thing you can do for a factory mopar by far is get a lot of caster on the front wheels, this is usually achieved by aftermarket control arms or running those moog corrector upper bushings in reverse. That will let you get a good result from radial tires. Hotchkis (and many others) have parts specifically for that, and that's what I truly consider "geometry" correcting.

That page says polyurethane, so if you're one of those people that is easily annoyed by squeaks and peeps while you're driving, factor that in.


Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
Re: Can Someone Explain These "Geometry Corrected"? [Re: 4speeds4me] #1724588
01/08/15 12:56 PM
01/08/15 12:56 PM
Joined: May 2012
Posts: 841
Santa Fe Springs, CA
Dan@Hotchkis Offline
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Santa Fe Springs, CA
Quote:

http://www.hotchkis.net/mopar_b_body_geometry_corrected_sport_leaf_springs.html

What is corrected/changed? Decent piece? Wasn't going to get too twisted on the rear of the Charger, but found a good deal on a set.

Thanks!




Most of the change comes from the front hanger which drops the car by raising the pick up point. This allows us to fun a flat spring pack with the eyes inline with the spring. Our springs are flat to reduce roll steer and transmit the forces generated in line with the spring. We also have added half-length springs to the pack to reduce wrap and wheel hop. They are a fantastic solution and about as optimized as you can get a leaf spring setup.

Re: Can Someone Explain These "Geometry Corrected"? [Re: Dan@Hotchkis] #1724589
01/08/15 01:24 PM
01/08/15 01:24 PM
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Posts: 5,388
Pikes Peak Country
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TC@HP2 Offline
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Pikes Peak Country
Quote:

This allows us to fun a flat spring pack with the eyes inline with the spring.




This is a berlin eye as compared to the stock upturned eye. Only drawback to a berlin eye is that the main leaf must be made from very good steel as the 2nd leaf cannot be brought up under the eye to support the main leaf with this arrangement. I'm sure Hotchkis was very particular about their spring provider to achieve this.

Re: Can Someone Explain These "Geometry Corrected"? [Re: TC@HP2] #1724590
01/08/15 02:24 PM
01/08/15 02:24 PM
Joined: May 2012
Posts: 841
Santa Fe Springs, CA
Dan@Hotchkis Offline
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Dan@Hotchkis  Offline
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Santa Fe Springs, CA
Quote:

Quote:

This allows us to fun a flat spring pack with the eyes inline with the spring.




This is a berlin eye as compared to the stock upturned eye. Only drawback to a berlin eye is that the main leaf must be made from very good steel as the 2nd leaf cannot be brought up under the eye to support the main leaf with this arrangement. I'm sure Hotchkis was very particular about their spring provider to achieve this.




Exactly. We've used the same spring manufacturer for a long time now and they are the best in the business as far as we are concerned. It adds to the cost, but makes for happy customers and a bullet-proof product.

Re: Can Someone Explain These "Geometry Corrected"? [Re: TC@HP2] #1724591
01/08/15 02:25 PM
01/08/15 02:25 PM
Joined: Dec 2003
Posts: 22,696
Bitopia
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jcc Offline
If you can't dazzle em with diamonds..
jcc  Offline
If you can't dazzle em with diamonds..
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Joined: Dec 2003
Posts: 22,696
Bitopia
Well this is one of the first things I learned today, a "berlin eye"


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Can Someone Explain These "Geometry Corrected"? [Re: jcc] #1724592
01/09/15 05:08 PM
01/09/15 05:08 PM
Joined: Jul 2011
Posts: 817
Eugene, Oregon
Secret Chimp Offline
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Secret Chimp  Offline
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Eugene, Oregon
If I mount those springs and park my car to the north, are the east and west sides of my axle going to start having problems?


1967 Dodge Coronet Deluxe station wagon

1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s
Re: Can Someone Explain These "Geometry Corrected"? [Re: Secret Chimp] #1724593
01/09/15 05:13 PM
01/09/15 05:13 PM
Joined: Dec 2003
Posts: 22,696
Bitopia
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jcc Offline
If you can't dazzle em with diamonds..
jcc  Offline
If you can't dazzle em with diamonds..
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Joined: Dec 2003
Posts: 22,696
Bitopia


Not if you are looking for a vacation.


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Can Someone Explain These "Geometry Corrected"? [Re: Secret Chimp] #1724594
01/09/15 06:02 PM
01/09/15 06:02 PM
Joined: May 2012
Posts: 841
Santa Fe Springs, CA
Dan@Hotchkis Offline
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Dan@Hotchkis  Offline
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Santa Fe Springs, CA
Quote:

If I mount those springs and park my car to the north, are the east and west sides of my axle going to start having problems?




We suggest you don't build a wall. Just let the two sides work it out.

Re: Can Someone Explain These "Geometry Corrected"? [Re: Secret Chimp] #1724595
01/09/15 08:14 PM
01/09/15 08:14 PM
Joined: Jan 2003
Posts: 8,089
Sorrento, BC, Canada
4speeds4me Offline OP
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4speeds4me  Offline OP
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Sorrento, BC, Canada
Quote:

If I mount those springs and park my car to the north, are the east and west sides of my axle going to start having problems?




When I saw your username, I understood the confusion. They are "geometry" corrected, not "geography" corrected!


2 Demons...no, not my kids!
Re: Can Someone Explain These "Geometry Corrected"? [Re: 4speeds4me] #1724596
01/16/15 12:35 AM
01/16/15 12:35 AM
Joined: Jan 2003
Posts: 8,089
Sorrento, BC, Canada
4speeds4me Offline OP
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4speeds4me  Offline OP
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Dan@Hotchkis- Can these be used with Caltracs if need be?


2 Demons...no, not my kids!
Re: Can Someone Explain These "Geometry Corrected"? [Re: 4speeds4me] #1724597
01/16/15 12:58 AM
01/16/15 12:58 AM
Joined: May 2012
Posts: 841
Santa Fe Springs, CA
Dan@Hotchkis Offline
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Santa Fe Springs, CA
You may be able to but I wouldn't recommend it. They would completely negate the effects of the design.

Re: Can Someone Explain These "Geometry Corrected"? [Re: Dan@Hotchkis] #1724598
01/16/15 02:06 AM
01/16/15 02:06 AM
Joined: Jan 2003
Posts: 8,089
Sorrento, BC, Canada
4speeds4me Offline OP
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So, they would be acceptable on their own launching at the strip?


2 Demons...no, not my kids!
Re: Can Someone Explain These "Geometry Corrected"? [Re: 4speeds4me] #1724599
01/16/15 04:17 AM
01/16/15 04:17 AM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
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Nebraska
Just run the Caltracs at the strip then remove the link bar from them for everything else.


Mopar to the bone!!!
Re: Can Someone Explain These "Geometry Corrected"? [Re: Secret Chimp] #1724600
01/16/15 03:10 PM
01/16/15 03:10 PM
Joined: Jul 2014
Posts: 3
Maryland
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Grnfsh Offline
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Maryland
Quote:

If I mount those springs and park my car to the north, are the east and west sides of my axle going to start having problems?




HA!! Took me a second on that one







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