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Thread: Neon SRT4 front brakes on a 91 Spirit RT

  1. #1
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    Neon SRT4 front brakes on a 91 Spirit RT

    Just wondering if this is a feasible swap, as Wilwood makes a nice bolt on big brake set up for the SRT4. I have BC coilovers on the front, so is it just a question of picking up the SRT4 knuckles and ball joints? Or am I missing something

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    From all the reading I've done, the turning radius will be poor with the knuckles from an SRT4. There were a couple years in which the PT cruisers supposedly had a proper turning radius for our cars, but the knuckles are only from a PT with manual trans. I think I may have a set, but I don't know how to tell for sure. I've thought about doing just what you're talking about.

    That said, R/T brakes with appropriate pads have not faded on me during track sessions. Have you tried that yet?

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    I am wanting to do the same thing. In for information on which knuckles I need to source.

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    Supporting Member II Turbo Mopar Contributor DOHCRT's Avatar
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    TCE has a kit that bolts to the stock R/T adapters using willwood calipers.


    Vic in Phoenix
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Here are some of the dimensions I found when we discussed this before.

    http://www.turbo-mopar.com/forums/sh...t=#post1135459

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by DOHCRT View Post
    TCE has a kit that bolts to the stock R/T adapters using willwood calipers.
    I thought that was a 1-off kit? Plus, I want to run Viper calipers, since I already have them, which the SRT-4 has had adapters made for.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by banger68 View Post
    Here are some of the dimensions I found when we discussed this before.

    http://www.turbo-mopar.com/forums/sh...t=#post1135459
    Thanks for this! I'd forgotten about it!

    Seems to me the turning radius shouldn't be affected by much, and if you have super wide tires, might prevent rubbing on the transmission case or wheel wells.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by Reaper1 View Post
    I thought that was a 1-off kit? Plus, I want to run Viper calipers, since I already have them, which the SRT-4 has had adapters made for.
    There's an adapter for Viper brakes on SRT/PT knuckles? Paging Jon Trotter, paging Jon Trotter. I've been toying with the notion of making a bracket to adapt them to our knuckles, but that seems like more trouble than it's worth for me. I would like to do a CF hood for my cars, and that'll drop a lot of weight out of the car. Do a CF hatch, and there goes a ton more. That's certainly enough to affect braking needs and balance for sure.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by cordes View Post
    There's an adapter for Viper brakes on SRT/PT knuckles? Paging Jon Trotter, paging Jon Trotter. I've been toying with the notion of making a bracket to adapt them to our knuckles, but that seems like more trouble than it's worth for me. I would like to do a CF hood for my cars, and that'll drop a lot of weight out of the car. Do a CF hatch, and there goes a ton more. That's certainly enough to affect braking needs and balance for sure.
    I should say I know it's been done, so the design already exists by a company that *should* be able to make more for the right monetary encouragement.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Decided to pick up a pair of SRT4 spindles and give this a go. According to Wilwood their set up will work with a 15 inch wheel which will allow me to run my 16 inch Pumpers

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by Wastelands Warrior View Post
    Decided to pick up a pair of SRT4 spindles and give this a go. According to Wilwood their set up will work with a 15 inch wheel which will allow me to run my 16 inch Pumpers
    Which Wilwood parts are you using?

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by wheming View Post
    Which Wilwood parts are you using?

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    Hey Wayne

    I'm using part number 140-6376 DR, which is listed for the SRT4 Neon

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    So I have been trying to look this up, but haven't found much of anything...how "stand alone" is the ABS system all together in the SRT-4? For those cars that didn't come with ABS at all, this might be a viable solution and could REALLY help out the performance potential of our cars.

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    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by Wastelands Warrior View Post
    Hey Wayne

    I'm using part number 140-6376 DR, which is listed for the SRT4 Neon
    Thanks!
    I thought about using SRT4 brakes on Mini, and have 2 donor sets from PT GT's. So I was curious about the Wilwood upgrade. I'm sure it must be a weight savings also.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by wheming View Post
    Thanks!
    I thought about using SRT4 brakes on Mini, and have 2 donor sets from PT GT's. So I was curious about the Wilwood upgrade. I'm sure it must be a weight savings also.

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    No problem brother. I just want to fit as much brake as possible under my 16 inch Pumpers. That's one of my rules of building this car is I have to run my Pumpers!

  16. #16
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    So I FINALLY found the wiring diagram for the Neon ABS. I don't see any reason why it couldn't be installed as a stand-alone system. 2 power feeds, a switched power, brake switch, "traction control" (which I can't figure out what it would do since it doesn't interact with the ECM), 2 grounds, and a data-out (which goes to the data link connector...DRB2?), and of course the wheel speed sensors.

    Seems to me like it's fairly straightforward.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by Reaper1 View Post
    So I FINALLY found the wiring diagram for the Neon ABS. I don't see any reason why it couldn't be installed as a stand-alone system. 2 power feeds, a switched power, brake switch, "traction control" (which I can't figure out what it would do since it doesn't interact with the ECM), 2 grounds, and a data-out (which goes to the data link connector...DRB2?), and of course the wheel speed sensors.

    Seems to me like it's fairly straightforward.
    So I should try to save the ABS off my PT GT?
    The traction control on these used the brakes to control wheel slip. Low speed traction control.

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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Quote Originally Posted by Wastelands Warrior View Post
    No problem brother. I just want to fit as much brake as possible under my 16 inch Pumpers. That's one of my rules of building this car is I have to run my Pumpers!
    I'd need to see how they would do with my Bogart's. I know they don't fit over the SRT4 brakes, not without additional spacers.

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    Wayne H.

    '91 Dodge Spirit ES 2.5L turbo 5spd
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    '89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.7786@113.04 mph! - Jan 15th, 2017 Fayetteville Dragway, NC)
    MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
    and other cars, trucks and motorcycles
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    Supporting Member II Turbo Mopar Contributor DOHCRT's Avatar
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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Neil Emiro put this system in Chris' GLHS that was on display at the Shelby Museum. I believe it was essentially a standalone.


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    Re: Neon SRT4 front brakes on a 91 Spirit RT

    Well, that kinda answers that, doesn't it! I wish I'd have latched onto that idea a long time ago. Ugghh...

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