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11.75" vs 12.19" Disc Kit #2565418
10/17/18 03:54 PM
10/17/18 03:54 PM
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Tulsa, Oklahoma
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tdmoparguy Offline OP
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tdmoparguy  Offline OP
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Tulsa, Oklahoma
Does anybody have a comparison of the 11.75" Dr. Diff disc brake kit versus the Wilwood Dynalite 12.19" kit? I already have the Dr. Diff kit that I bought a while back, but haven't used. Is the Wilwood an upgrade worth messing with or just stick with what I have?

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2565502
10/17/18 06:37 PM
10/17/18 06:37 PM
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Posts: 403
Colorado front range
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BcudaChris Offline
mopar
BcudaChris  Offline
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Colorado front range
Interested in this, no tech but a bump for you.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2565529
10/17/18 07:25 PM
10/17/18 07:25 PM
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Oregon
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AndyF Offline
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Oregon
No point in changing to that Wilwood kit from the factory 11.75 setup. If you want bigger better brakes then move up to a 13 x 1.25 kit with Brembo or Baer calipers. You'll notice a big difference between the factory 11.75 x 1 brakes and a 13 x 1.250 setup.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2565646
10/17/18 10:27 PM
10/17/18 10:27 PM
Joined: Dec 2003
Posts: 22,695
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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Bitopia
Getting to basics, brakes stop your wheels, tires stop your car.


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2565986
10/18/18 03:42 PM
10/18/18 03:42 PM
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Posts: 5,385
Pikes Peak Country
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TC@HP2 Offline
master
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Pikes Peak Country
They are 4% bigger and can be had in two piece rotor/hub assy at 1.25" widths, so slightly better heat sink. Two piece design means they are easily replaced if you are brutalizing them. Can you feel a 4% change and is that worth the $$ spent?

They will allow you to retain 15" wheels if that is important.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2566008
10/18/18 04:39 PM
10/18/18 04:39 PM
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Mequon, WI
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gzig5 Offline
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Mequon, WI
Not worth it in my opinion. If your setup could actually use the slight additional fade resistance, then you would benefit from a true big brake kit like the 13+" ones available, and that would be worth it. I'm saving for a Baer or Brembo type setup. Buy once and cry once. I've no direct experience with Wilwood but have heard a lot of non-complementary things about the performance of their front brake kits.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2566189
10/18/18 10:44 PM
10/18/18 10:44 PM
Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
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5.7L Hemi, 6spd

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Texas
My biggest complaint with my Wilwoods is the pad knockback, unless Baer or Brembo have floating calipers, I can't see them avoiding that issue.

The Wilwood hub does use remarkably small outer front wheel bearings, which I imagine only lends itself to excessive compliance.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: 11.75" vs 12.19" Disc Kit [Re: GoodysGotaCuda] #2567858
10/22/18 03:38 PM
10/22/18 03:38 PM
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Posts: 2,463
Answering the call of the wild
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ThermoQuad Offline
top fuel
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Answering the call of the wild
Goody...pad knock-back is from loose wheel bearings...sometimes you guys should listen to those of us like me who ran those same brakes on the road course at 130+ mph with lots of track mileage/time. The orig way to set up wheel bearings in not for going 130 mph. OK??? More than 1 car with the same set up btw.

The proper modern adjustment procedure is

While spinning rotor CW tighten wheel bearing nut to 20 fl lbs.
Loosen nut
While spinning rotor CW tighten wheel bearing nut to 90 to 120 INCH pounds with a BEAM torque wrench.

I am not here to argue. I know what works so why don't you humor me and try it? If you have pad knock-back after that you have something else wrong and/or the torque setting needs to be a bit more. I never ran small outer wheel bearings.

As far the Op and his size matters...minimal difference in the size...ducted air on the brakes matters, for the street with no track time the 11.75 is more than adequate. Choose the correct brake material.

Last edited by Dilbert; 10/22/18 03:40 PM.
Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2568022
10/22/18 09:26 PM
10/22/18 09:26 PM
Joined: Jan 2003
Posts: 30,947
Oregon
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AndyF Offline
I Win
AndyF  Offline
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Oregon
I can't see why there should be any knockback issue with a good quality caliper. I don't use Wilwood stuff on anything I build since they are the low quality brake vendor. I usually use Brembo or Baer components and they work fine. Brembo is the OEM supplier for almost all high performance cars so they know how to build stuff that works.

Re: 11.75" vs 12.19" Disc Kit [Re: gzig5] #2572790
11/01/18 10:27 PM
11/01/18 10:27 PM
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
goldduster318 Offline
pro stock
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Lake Orion, MI
Originally Posted By gzig5
Not worth it in my opinion. If your setup could actually use the slight additional fade resistance, then you would benefit from a true big brake kit like the 13+" ones available, and that would be worth it. I'm saving for a Baer or Brembo type setup. Buy once and cry once. I've no direct experience with Wilwood but have heard a lot of non-complementary things about the performance of their front brake kits.


The Doctor Diff 13" Mustang Cobra brake kit is great bang for the buck. Those+Hydroboost and you have a ton of brake output and great modulation


'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2573186
11/02/18 08:00 PM
11/02/18 08:00 PM
Joined: Apr 2015
Posts: 38
Tulsa, Oklahoma
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tdmoparguy Offline OP
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tdmoparguy  Offline OP
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Tulsa, Oklahoma
I'm wanting to stick with 15" wheels.

Re: 11.75" vs 12.19" Disc Kit [Re: goldduster318] #2573198
11/02/18 08:33 PM
11/02/18 08:33 PM
Joined: Mar 2005
Posts: 403
Colorado front range
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BcudaChris Offline
mopar
BcudaChris  Offline
mopar
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Joined: Mar 2005
Posts: 403
Colorado front range
Originally Posted By goldduster318

The Doctor Diff 13" Mustang Cobra brake kit is great bang for the buck. Those+Hydroboost and you have a ton of brake output and great modulation


Glad to hear that, that setup is awesome on my 01 Bullitt, and I've been tempted, love the look of my cop wheels though.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2573200
11/02/18 08:36 PM
11/02/18 08:36 PM
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Posts: 403
Colorado front range
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BcudaChris Offline
mopar
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Colorado front range
Does anyone know if on the Willwood setup if the hub for the 12.1" setup will work with their 13 or 14" rotors?

If I could swap out the rotors and caliper brackets when I end up having to go to bigger wheels, that would be a huge selling point for me.

Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2573226
11/02/18 09:36 PM
11/02/18 09:36 PM
Joined: Nov 2016
Posts: 200
Colorado
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Bob J Offline
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Colorado
Call Magnum Force and see what they say they are in the know.


07 Porsche C2 997.1 6spd DD and SCCA Solo II SS
68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam
65 Chrysler 300 Convert. project
57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son
2003 Dodge Dakota R/T "DEAD"
Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2573328
11/03/18 04:39 AM
11/03/18 04:39 AM
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog Offline
Striving for excellence
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Granite Bay CA
You mean that guy that looks like a Roadie for KISS or the Scorpions ??

Re: 11.75" vs 12.19" Disc Kit [Re: TC@HP2] #2573446
11/03/18 01:59 PM
11/03/18 01:59 PM
Joined: Aug 2003
Posts: 275
Oakwood Ont Canada
340mouse Offline
enthusiast
340mouse  Offline
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Oakwood Ont Canada
What options are there if you want to keep the 14" rims.

Re: 11.75" vs 12.19" Disc Kit [Re: Kern Dog] #2573452
11/03/18 02:12 PM
11/03/18 02:12 PM
Joined: Nov 2016
Posts: 200
Colorado
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Bob J Offline
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Bob J  Offline
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Joined: Nov 2016
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Colorado
Originally Posted By Frankenduster
You mean that guy that looks like a Roadie for KISS or the Scorpions ??


LOL I never meet the guy. I just talked with them years ago when I sent them My spindles for my 57 DeSoto 2dr. Firesweep. They built brackets for the spindles and put a kit together for me. They tried to sell them after that but I don't think that they sold well. At the time if it cost more than 2 nickles the the forwardlook guys didn't want it.


07 Porsche C2 997.1 6spd DD and SCCA Solo II SS
68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam
65 Chrysler 300 Convert. project
57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son
2003 Dodge Dakota R/T "DEAD"
Re: 11.75" vs 12.19" Disc Kit [Re: 340mouse] #2573596
11/03/18 08:41 PM
11/03/18 08:41 PM
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
goldduster318 Offline
pro stock
goldduster318  Offline
pro stock

Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
Originally Posted By 340mouse
What options are there if you want to keep the 14" rims.


Stock 73+ Brakes + Hydroboost. I doubt you'll be able to increase the output much over that. Tires will become a giant issue for braking since 14" performance tires don't exist as far as I know. BFG Radial T/A's are just garbage. Not sure why anyone needs a mud/snow radial on a cars that rarely get driven in the rain


'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
Re: 11.75" vs 12.19" Disc Kit [Re: tdmoparguy] #2573602
11/03/18 09:14 PM
11/03/18 09:14 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
About to go away
Supercuda  Offline
About to go away

Joined: Sep 2007
Posts: 14,889
up yours
yeah, no performance tires in 14" diameters

https://www.tirerack.com/tires/sizes/results.jsp?diameter=14

Lots of options from extreme high performance summer tires to dedicated race/autocross tires. All in 14" diameters


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: 11.75" vs 12.19" Disc Kit [Re: Supercuda] #2573632
11/03/18 10:22 PM
11/03/18 10:22 PM
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
goldduster318 Offline
pro stock
goldduster318  Offline
pro stock

Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
Originally Posted By Supercuda
yeah, no performance tires in 14" diameters

https://www.tirerack.com/tires/sizes/results.jsp?diameter=14

Lots of options from extreme high performance summer tires to dedicated race/autocross tires. All in 14" diameters




confused
Nobody is putting a sub 24" tall tire on a mopar muscle car. I didn't think we were talking about Neons but okay... Any size larger than that you can get a Radial T/A or a Cooper Cobra, neither of which are anything but 1980s tire designs that are still manufactured.

Optimum wheel size is either 17" or 18" for most of our cars for cornering performance, and you can get some really amazing tires, and fit great brakes under it.


'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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