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Re: Tubular UCA options
[Re: AlexP]
#1834547
05/26/15 02:22 PM
05/26/15 02:22 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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The SPC arms from Bergman Autokraft, only ones I know of with Delrin bushings. When my RMS arms wear out i'll be getting some from Peter.
Mopar to the bone!!!
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Re: Tubular UCA options
[Re: Dan@Hotchkis]
#1834671
05/26/15 05:21 PM
05/26/15 05:21 PM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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Our arms are the only ones on the market that correct all of the deficiencies in the factory suspension and are designed to work with modern spring and shock rates as well as tires. Our suspension is on the fastest Mopars across the country! We'll have the the EMax at the Carlisle Chrysler Show in July to prove it! I don't believe those arms fit with alex's brakes (gen 3 viper on 360mm srt8 rotors). Peter & Emil - do the BAC SPC arms fit with the big brakes?
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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Re: Tubular UCA options
[Re: AlexP]
#1834674
05/26/15 05:29 PM
05/26/15 05:29 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I think Peter runs the same front brakes as us Wade?
Mopar to the bone!!!
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Re: Tubular UCA options
[Re: Dan@Hotchkis]
#1835038
05/27/15 02:46 AM
05/27/15 02:46 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
I got lucky at Woodward!
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I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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I still find it odd that we didn't see the same fitment issue on Kevins 76 Dart. Either way, it would be a simple fix to clock the caliper out of the way.
I told Rob about it on my car and I think he's going to have Corey check it out. I believe Kevin's calipers are, physically, smaller than mine.
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Re: Tubular UCA options
[Re: Dan@Hotchkis]
#1835491
05/27/15 07:46 PM
05/27/15 07:46 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Our arms are the only ones on the market that correct all of the deficiencies in the factory suspension and are designed to work with modern spring and shock rates as well as tires. Our suspension is on the fastest Mopars across the country! We'll have the the EMax at the Carlisle Chrysler Show in July to prove it! Dan, can you elaborate a tad on the factory deficiencies that have been remedied? Camber change, bump steer, compliance, etc? I noticed you have extra bracketry with your arms but would like a little detail on how those are benefitting the system.
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Re: Tubular UCA options
[Re: AlexP]
#1835537
05/27/15 08:55 PM
05/27/15 08:55 PM
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Joined: Feb 2003
Posts: 16,127
Mesa, Arizona
dart4forte
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 16,127
Mesa, Arizona
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I've done Firm Feel suspension going on 10 years now. Mostly A body with a few 71 B bodies. My 71 RR has a complete Firm Feel suspension and it's like riding a roller skate.
For the street and a occassional autox or road race that's the way to go. If you want the full adjustability to fine tune and adjust based on track conditions then Hotchkis. I've never owned a car with their product however I have ridden and driven cars running the Hotchkis system. I think the two are comparable however a lot of R&D goes into Hotchkis. Firm Feel's experience with their systems has been mainly customer improvement suggestions from actual track time. Not sure on the R&D. You may want to talk with Dick at Firm Feel.
“So if it’s on the internet it must be true”
Abe Lincoln
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Re: Tubular UCA options
[Re: GoodysGotaCuda]
#1835582
05/27/15 10:18 PM
05/27/15 10:18 PM
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Joined: May 2012
Posts: 841
Santa Fe Springs, CA
Dan@Hotchkis
super stock
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super stock
Joined: May 2012
Posts: 841
Santa Fe Springs, CA
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Our arms are the only ones on the market that correct all of the deficiencies in the factory suspension and are designed to work with modern spring and shock rates as well as tires. Our suspension is on the fastest Mopars across the country! We'll have the the EMax at the Carlisle Chrysler Show in July to prove it! Dan, can you elaborate a tad on the factory deficiencies that have been remedied? Camber change, bump steer, compliance, etc? I noticed you have extra bracketry with your arms but would like a little detail on how those are benefitting the system. Not a problem! We've covered it a few times in discussion on this forum, so I'm going to cheat a bit and do a copy/paste from our site  "Hotchkis Sport Suspension 1110 Dodge B and E Body Geometry Corrected Tubular Upper A-Arms. Dramatically improve the cornering performance traction and steering response of your Dodge with Hotchkis Sport Suspension Tubular A-Arms. Specifically designed to correct the excessive caster gain and create the proper negative camber curve this kit features a Hotchkis exclusive Laser Cut Pick Up Point Relocation Bracket and TIG-welded Light Weight A-Arms which are fully gusseted for strength and feature High Articulation Rod Ends for maximum adjustability. Finished off with high quality ball joints and a lustrous nickel look powder coated Finish blending form and function. Features: TIG-welded Lightweight 1 1/8 in. Tubing with laser cut reinforcement gussets. High Quality 5/8 in. High Articulation Rod Ends and Ball Joints installed. Laser Cut CNC Bent Bolt In Relocation Bracket corrects excessive caster gain. Lustrous Nickel Look Powder Coated Finish. Benefits: Dramatically improves traction and steering response. Lightweight Tubular A-Arms improve camber curve. Laser Cut Pick Up Point Relocation Bracket corrects excessive caster gain. Reduced Bump Steer Bolt In Installation How does the geometry corrected arm work? The A-Arm pivot bracket we provide is part of our solution for reducing bumpsteer. The stock upper A-Arm configuration has such a steep inner pivot angle. This causes the caster to change rapidly as the suspension travels up and down causing excessive spindle geometry-point movement. Our new pivot location reduces this caster change and allows the upper lower and steering arms to translate more harmoniously throughout its travel. This change in conjunction with our steering tie rods help minimize unwanted bumpsteer. In addition the upper arms themselves have more negative camber and more positive caster built into them to maximize tire contact patch while cornering."
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Re: Tubular UCA options
[Re: Dan@Hotchkis]
#1835604
05/27/15 10:44 PM
05/27/15 10:44 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Our arms are the only ones on the market that correct all of the deficiencies in the factory suspension and are designed to work with modern spring and shock rates as well as tires. Our suspension is on the fastest Mopars across the country! We'll have the the EMax at the Carlisle Chrysler Show in July to prove it! Dan, can you elaborate a tad on the factory deficiencies that have been remedied? Camber change, bump steer, compliance, etc? I noticed you have extra bracketry with your arms but would like a little detail on how those are benefitting the system. Not a problem! We've covered it a few times in discussion on this forum, so I'm going to cheat a bit and do a copy/paste from our site "Hotchkis Sport Suspension 1110 Dodge B and E Body Geometry Corrected Tubular Upper A-Arms. Dramatically improve the cornering performance traction and steering response of your Dodge with Hotchkis Sport Suspension Tubular A-Arms. Specifically designed to correct the excessive caster gain and create the proper negative camber curve this kit features a Hotchkis exclusive Laser Cut Pick Up Point Relocation Bracket and TIG-welded Light Weight A-Arms which are fully gusseted for strength and feature High Articulation Rod Ends for maximum adjustability. Finished off with high quality ball joints and a lustrous nickel look powder coated Finish blending form and function. Features: TIG-welded Lightweight 1 1/8 in. Tubing with laser cut reinforcement gussets. High Quality 5/8 in. High Articulation Rod Ends and Ball Joints installed. Laser Cut CNC Bent Bolt In Relocation Bracket corrects excessive caster gain. Lustrous Nickel Look Powder Coated Finish. Benefits: Dramatically improves traction and steering response. Lightweight Tubular A-Arms improve camber curve. Laser Cut Pick Up Point Relocation Bracket corrects excessive caster gain. Reduced Bump Steer Bolt In Installation How does the geometry corrected arm work? The A-Arm pivot bracket we provide is part of our solution for reducing bumpsteer. The stock upper A-Arm configuration has such a steep inner pivot angle. This causes the caster to change rapidly as the suspension travels up and down causing excessive spindle geometry-point movement. Our new pivot location reduces this caster change and allows the upper lower and steering arms to translate more harmoniously throughout its travel. This change in conjunction with our steering tie rods help minimize unwanted bumpsteer. In addition the upper arms themselves have more negative camber and more positive caster built into them to maximize tire contact patch while cornering." Thanks Dan, any numbers you can share? Camber change from X°/in-heave to Y°, bump steer from X to Y, roll center migration from this to that, etc? Keeping it generic as % improvement or the like would be helpful even. I'm trying to read through the marketing lingo and get to how much improvement we talking about here. 
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Re: Tubular UCA options
[Re: GoodysGotaCuda]
#1835941
05/28/15 01:11 PM
05/28/15 01:11 PM
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Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
Mopar Mitch
pro stock
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pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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Changing the UCA is a must for our cars; at the least would be changing UCA bushings to the Moog offset design.
Beware of what you buy -- some sanctioned race groups/classes have restrictions to the type of replacement parts (UCA, etc), as well as the attachment points. Read your intended club's rule books before you spend $$$.
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: Tubular UCA options
[Re: AlexP]
#1837071
05/30/15 01:24 AM
05/30/15 01:24 AM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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I don't know what rock I was hiding under- but I missed the fact that yall change a mounting point on the B and E body UCA's! Very nice Dan! That puts yall in a league of your own.
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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Re: Tubular UCA options
[Re: AlexP]
#1837076
05/30/15 01:37 AM
05/30/15 01:37 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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They bring the front of the arms down which, if done right, will kill some caster gain( also effects toe change through travel)through travel and at the same time should "flatten" the upper arm when looking at it from the front, and that in turn helps camber gain on up travel, which is actually more negative camber during UP travel. Make sense???
Mopar to the bone!!!
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