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RAD Ideas : Mustang GT and Cobra brake adapter bracket update

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  • sbca96
    replied
    Dan,

    I had them right at the end of the tube, and I used a breaker bar to tighten .. the pipe would turn after a mile and the exhaust would start rattling against the frame, or the trans, or something it rested on. I had the same problem years ago with the strap clamps that came with my Impalas Flowmaster CAT back exhaust, tossed those and used old school clamps. I thought I would give it another try with the Avanti, never again.

    Bez,

    I have some pictures I need to get off my phone. I went with the classic ramhorn look, but the LARGE "Corvette" 2-1/2" ones. There were hurdles to overcome, since the original ramhorn manifold has a cast-in boss that has two forward facing tapped holes that the accessories mount to. A custom bracket and spacer was required.

    https://www.speedwaymotors.com/Smoot...Raw,94194.html

    Tom

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  • bezhawk
    replied
    I just bought a 76 Avanti II...thinking about the aftermarket rams horn exhaust. Do you have pics if them installed? Are they like these?
    Flowtech 11704-1FLT SB Chevy Rams Horn Exhaust Manifold, Silver (speedwaymotors.com)

    Leave a comment:


  • Dan White
    replied
    Tom the strap clamps are not made to deform the pipes. I have not used the clamp type in years and only use the strap or stepped straps on all my cars and never had any issues. You should overlap the strap clamps on the joint so you can tighten down on each side of the joint. The stepped clamps work great on mufflers.

    Here is a video showing each style. https://www.youtube.com/watch?v=nU5157JYolw

    Leave a comment:


  • sbca96
    replied
    Hey all, just checking in, been busy doing this and that on the Avantis and avoiding Covid. Did the large Silvertone exhaust on both Avantis, with Flowmaster Hushpower II, R3 Headers on the '63 and the extra large Ramhorns on the '69 (that required a custom bracket to mount the alternator and power steering. Dont waste your money on this stupid strap exhaust clamps they can not deform the stainless to clamp the two pipes together no matter HOW tight you make them. Go with old school u-bolt clamps.

    Tom

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  • sbca96
    replied
    Originally posted by Aviator View Post
    Are the brackets you developed available for purchase? I am new to this forum , not sure where to find your reply! converting my 63 to 4 wheel disc. Thanks
    Yes they are, feel free to send me a PM on the forum.

    Tom

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  • sbca96
    replied
    Originally posted by bensherb View Post
    Is that where all the cars were coming from Sunday (11/4) afternoon?
    It may have been, I'm always amazed how early some people leave a car show. Lots of nice cars .. guess how many Avantis were there? (Yup - just two).

    Tom

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  • Aviator
    replied
    13" Cobra brakes on Avanti Spindles

    Originally posted by sbca96 View Post
    I have too many projects, thats becoming very obvious. Brakes are still working great on both my Avantis, the 13" Cobra ones and the 11" GT on my Dads Avanti II above. It appears I am not the only one whose projects seem to stall because another takes priority, but all 3 test sets projects have slowed. I can honestly say none are related to brakes. If anyone else is waiting in the wings, the initial fitment feedback was good with no surprises reported. Let me know if you want to move forward.

    Here is my wife and I driving to the Nojoqui Falls car show off US101. I am in the 1963 following her driving my dads 1969 Avanti II.



    https://www.youtube.com/watch?v=FicDeUBxFI8

    Tom
    Are the brackets you developed available for purchase? I am new to this forum , not sure where to find your reply! converting my 63 to 4 wheel disc. Thanks

    Leave a comment:


  • bensherb
    replied
    "Nojoqui Falls car show off " Is that where all the cars were coming from Sunday (11/4) afternoon? Several turned off the highway here at Cathedral Oaks around 2pm. Seems a bit early for a car show to be over.

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  • sbca96
    replied
    I have too many projects, thats becoming very obvious. Brakes are still working great on both my Avantis, the 13" Cobra ones and the 11" GT on my Dads Avanti II above. It appears I am not the only one whose projects seem to stall because another takes priority, but all 3 test sets projects have slowed. I can honestly say none are related to brakes. If anyone else is waiting in the wings, the initial fitment feedback was good with no surprises reported. Let me know if you want to move forward.

    Here is my wife and I driving to the Nojoqui Falls car show off US101. I am in the 1963 following her driving my dads 1969 Avanti II.



    https://www.youtube.com/watch?v=FicDeUBxFI8

    Tom
    Last edited by sbca96; 11-05-2018, 11:57 PM.

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  • sbca96
    replied
    Hello all,

    I have been busy trying to get my dads Avanti ready for a cruise night and car show, so these updates stalled.





    As you can see there was another Avanti, a 1970 .. and it was blue .. with brown interior. It was also originally brown exterior and both cars only had the outside repainted so the door jams, underhood and trunk are still brown. This means that everyone at the show will assume Avantis were all blue with brown interior. I heard a little girl say, "look there are two the same". Sigh.

    The beautiful 1959 Silver Hawk between the two Avantis won the division.









    I have 3 sets of prototypes out for testing/comments. The initial feedback has been positive on the Gen II design.

    I will shortly be sending out an email to all those that wanted to be added on a waiting list.

    Tom

    Leave a comment:


  • sbca96
    replied
    The Master I have been using and the one that I swapped over to on my Dads Avanti is the Dodge dual master.

    http://www.studebaker-info.org/Tech/repstuavMC.html

    Mid 70's Chrysler. NAPA # 36307 or new number M2066
    Bore Size:1 1/32"

    https://www.napaonline.com/en/p/NMAM2066

    I have to agree on the drum brake experience that JoeHall speaks of. I had 4 wheel drums on my Hawk and it wasn't safe to drive. I recall driving down a long hill in traffic and when I reached the bottom standing on the pedal as hard as I could and STILL running a stop sign. I had forgot about the pulling side to side! You never knew which way it would go, but it sure did, sometimes with serious force! With the majority of modern cars stopping in less than 130 feet from 60 mph, and your 4 wheel drum Studebaker stopping in 150 to 200 or more .. better stock up on front sheetmetal and insurance.

    As for an update .. I am currently shipping out a couple sets for feedback, one gentleman has been SUPER patient and pivotal in keeping me motivated.

    My Dad had loved the Cobra wheels that I bought some years ago for my Avanti, I even went through the steps to get a quote on shipping them to Michigan for him :



    That wasnt meant to be when he took ill and started the dark road into Alzheimer. So when I received his Avanti I got in touch with the company AFS wheels and bought 4 of the last 6 wheels they had. I wanted chrome, but beggars cant be choosers and I ended up with black painted.







    This will do for now, it actually is starting to grow on me. The bumpers need chrome, so I might get a quote for gloss vinyl wrap.... carbon fiber? Hmm.

    Tom

    Leave a comment:


  • JoeHall
    replied
    Originally posted by Kdancy View Post
    Tom, which mc are you using with your set up? I have done several disc brake conversions using stude vendors kits and can say I think the drum brakes were actually better. I have a lot of issues with pedal feel and lack of good pedal. One thing I did find out is the relationship between the mc and calipers, both must be matching quick uptake or regular uptake. I had a heck of a time with the disc brake conversion kit on a 60 Champ PU until I finally matched them up. Now the brakes are very good. Also have been conversing with a long time Studebaker mechanic in North Fla that has the same poor pedal/brake issues with disc brake conversion kits that I have had.
    He has decided to quit doing the conversions and stick with drum brakes.
    Main reason I switched to DBs on all Studes many years ago is brake shoe material; just cannot find shoes lined with bronze sintered asbestos anymore, and the EPA mandated material is junk. A year or so ago, I saw a for sale ad in the Swap section here for NOS shoes lined with, "the good stuff". I ASSumed the seller was talking about bronze and asbestos. The last drum braked Hawk I had would go through red lights with me standing on the pedal; minimal initial grab, and they faded to nothing within a few feet.

    Another problem inherent with drums is that they pull side to side. When Stude advertised their DBs in 1963, they touted how DBs have, "straight line stopping". Anyone who has driven with drum brakes much knows exactly what they were referring to.

    I would never advise anyone to go back to drum brakes, who actually drives their Stude at modern speeds. The life you save may be your own.

    Tom, thanks for all the work you are doing to develop even more refined DBs for our Studes
    Last edited by JoeHall; 07-02-2017, 05:19 AM.

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  • Kdancy
    replied
    Tom, which mc are you using with your set up? I have done several disc brake conversions using stude vendors kits and can say I think the drum brakes were actually better. I have a lot of issues with pedal feel and lack of good pedal. One thing I did find out is the relationship between the mc and calipers, both must be matching quick uptake or regular uptake. I had a heck of a time with the disc brake conversion kit on a 60 Champ PU until I finally matched them up. Now the brakes are very good. Also have been conversing with a long time Studebaker mechanic in North Fla that has the same poor pedal/brake issues with disc brake conversion kits that I have had.
    He has decided to quit doing the conversions and stick with drum brakes.

    Leave a comment:


  • sbca96
    replied
    The Caliper bolts have loctite on them when you use the factory ones, in other areas I used bolts, with lock washers AND crimp lock nuts.

    We are fine .. but yes .. thats good to note.

    Tom

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  • Treblig
    replied
    Don't remember you mentioning that you used lock tight on all the brake components?? It's very important in certain places.

    Treblig

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