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Thread: ACR coil over

  1. #1
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    ACR coil over

    Hi guys, I’m looking for some suspension advice. I’m going to be installing full ACR aero on my TA, I will need to beef up the suspension to handle the additional downforce. Will stock ACR coil overs work on my TA? And if so does anyone have a set that they would like to sell? I would also welcome any other recommendations for this application or recommendations for a better setup without completely blowing up my wallet. I have been told the BC coil overs are nice but bottom out around 125mph. Also will the sway bars I currently have be sufficient with this package and or other suspension components?
    Thanks for any help
    Dennis

  2. #2
    Bruce H.
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    May I ask why you want to add the ACR aero? Is it for the look or do you run it on high-speed race tracks and need the additional downforce to improve cornering speeds? What wheel and tire do you plan to run with this set-up?

  3. #3
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    Quote Originally Posted by Hawk View Post
    Hi guys, I’m looking for some suspension advice. I’m going to be installing full ACR aero on my TA, I will need to beef up the suspension to handle the additional downforce. Will stock ACR coil overs work on my TA? And if so does anyone have a set that they would like to sell? I would also welcome any other recommendations for this application or recommendations for a better setup without completely blowing up my wallet. I have been told the BC coil overs are nice but bottom out around 125mph. Also will the sway bars I currently have be sufficient with this package and or other suspension components?
    Thanks for any help
    Dennis
    I've done this conversion, so ask me any specifics I'll help. Did you already buy the parts? Yeah you can put stock ACR shocks on it, or go cheaper and get MCS shocks and just get spring rates to match the ACR setup. I recommend actually a little lower spring rates unless you will be hitting very high speeds. Your TA already has the same sway bars as the ACR does.
    ViperAlignment.jpg

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    I do attend track days and I am looking for improved performance. I am planning on trying the Toyo R888 tires. The track I go to I can hit a top speed of 140mph. I have not purchased the parts yet I am trying to get all the information so I can have a plan moving ahead. I have looked at the stock rear wing and the 74” APR version, I’m on the fence on which way to go since there is a $7,500 difference in price . I know its next to impossible to find a used rear wing so my options seem limited. As far as the splitter and diffuser it seems like there are several aftermarket versions to choose from that are reasonably priced and seem of high quality. The canards are not very expensive. I’m ready to pull the trigger I jut want to pass it by guys that have experience with what I’m ready to undertake. I apricate anyone that con contribute technical advice
    Dennis

  5. #5
    thats a great addition to any Viper... Looked into it myself and realized its cheaper to sell my TA and just buy an ACR. havent pulled the trigger on that as i cant bear to part with this special snake. Good luck. ill be following you build closely!

  6. #6
    was going to say why not sell the TA and buy an ACR sounds much easier, cheaper and will hold its value better then putting all that money into a fully modded T/A (resale stock is almost always better)

  7. #7
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    I went the APR route on my GTS and happy to help with any questions you might have regarding fit/finish and functionality.

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    Quote Originally Posted by Hawk View Post
    Hi guys, I’m looking for some suspension advice. I’m going to be installing full ACR aero on my TA, I will need to beef up the suspension to handle the additional downforce. Will stock ACR coil overs work on my TA? And if so does anyone have a set that they would like to sell? I would also welcome any other recommendations for this application or recommendations for a better setup without completely blowing up my wallet. I have been told the BC coil overs are nice but bottom out around 125mph. Also will the sway bars I currently have be sufficient with this package and or other suspension components?
    Thanks for any help
    Dennis
    Whats your end goal Hawk??? Track car/ street track, just like the look or a little bit of everything??

  9. #9
    You could start with the aero, test it on the track, determine what suspension change is needed. The APR wing is a good option, but I wasn't sold on their front splitter solution after seeing how the ACR-E is front splitter is designed and secured. If I recall correctly, Xtremesupercars has an ACR front splitter replica that might be worth looking into.

    The TA is pretty good as-is but can benefit from more downforce on the rear. I tracked both the TA and ACR-E, there's no doubt the ACR significantly inspires confidence. Prior to acquiring the ACR, I considered adding aero and suspension to the TA to improve it's on-track capability but decided against it due to cost and would deter from the TA's street friendliness. The ACR is logistically tougher to drive around town, between the firmer ride and aero clearance(if damaged is $$$$). You welcome to PM if want more details on my impression between the two.

    My best advice is to revaluate your use case and decide whether you are willing to make the compromise.

  10. #10
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    Quote Originally Posted by Hawk View Post
    I do attend track days and I am looking for improved performance. I am planning on trying the Toyo R888 tires. The track I go to I can hit a top speed of 140mph. I have not purchased the parts yet I am trying to get all the information so I can have a plan moving ahead. I have looked at the stock rear wing and the 74” APR version, I’m on the fence on which way to go since there is a $7,500 difference in price . I know its next to impossible to find a used rear wing so my options seem limited. As far as the splitter and diffuser it seems like there are several aftermarket versions to choose from that are reasonably priced and seem of high quality. The canards are not very expensive. I’m ready to pull the trigger I jut want to pass it by guys that have experience with what I’m ready to undertake. I apricate anyone that con contribute technical advice
    Dennis
    JUST the aero parts add up to about $43K MSRP. If you look around hard enough you can probably get them all for half that, about the same as Xtreme's aftermarket stuff. If I remember correctly just the stanchions are $7000. LOL

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    My end goal is to improve the car for track days. I do not have intentions of pulling out the interior and installing a roll cage any time soon. Doug Shelby quoted me $20k for the full aero kit if I go stock replica stock parts, plus the suspension costs. If I sell my TA and buy an ACR Just the upgrade will probably be around $30-$60 K plus another $10+ K in sales tax to the state . Not to mention I really love the TA orange and a TA /ACR is way out of my reach. I do not spend a lot of time on the street with this car (I usually drive my Challenger) so making it less street friendly wont change things much from that point of view. I guess my thoughts are it will be more reasonable for the way I will use the car to install a combination of APR parts as well as a few parts manufactured by some of the members that seem in between APR and original ACR (in performance and cost). however if I pony up with the accurate ACR parts I expect the resale to be much better. Then again I bought this car to drive it not for an investment ,although it is a good feeling to get a big chunk of you money back when I sell. I’m not worried about keeping a virgin car so the next guy can enjoy it more than me, I’m the 4th owner of this car and the first two guys lost money on the sale and hardly drove it, not my idea of a good time
    I appreciate all the feedback any welcome any advice
    Thanks
    Dennis
    Last edited by Hawk; 11-07-2020 at 10:18 AM.

  12. #12
    Regarding aero, it is my opinion that anytime you're over 80 mph, the aero is making a difference. On most tracks, I would think you're over 80 mph at least 85% of the time.

    I think you'll be very happy with the addition of aero.

  13. #13
    Bruce H.
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    Quote Originally Posted by Hawk View Post
    My end goal is to improve the car for track days.
    Have you already made the most basic and important improvements? Nothing is more effective than improving driver skill level. As good as they are, have you pushed beyond the limits of both the factory pads and fluid and upgraded both? Have you moved up to a grippier tire and optimized alignment for them? Have you considered weight reduction?

    A TA with driver and brake upgrades is incredibly formidable on track and the list of faster production cars is incredibly short. Upgrade costs are always a consideration, and covering these basic upgrades are by far the most economical way to improve the car for track days while maintaining high reliability.

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    Quote Originally Posted by Hawk View Post
    My end goal is to improve the car for track days. I do not have intentions of pulling out the interior and installing a roll cage any time soon. Doug Shelby quoted me $20k for the full aero kit if I go stock replica stock parts, plus the suspension costs. If I sell my TA and buy an ACR Just the upgrade will probably be around $30-$60 K plus another $10+ K in sales tax to the state . Not to mention I really love the TA orange and a TA /ACR is way out of my reach. I do not spend a lot of time on the street with this car (I usually drive my Challenger) so making it less street friendly wont change things much from that point of view. I guess my thoughts are it will be more reasonable for the way I will use the car to install a combination of APR parts as well as a few parts manufactured by some of the members that seem in between APR and original ACR (in performance and cost). however if I pony up with the accurate ACR parts I expect the resale to be much better. Then again I bought this car to drive it not for an investment ,although it is a good feeling to get a big chunk of you money back when I sell. I’m not worried about keeping a virgin car so the next guy can enjoy it more than me, I’m the 4th owner of this car and the first two guys lost money on the sale and hardly drove it, not my idea of a good time
    I appreciate all the feedback any welcome any advice
    Thanks
    Dennis
    So 80% track car sounds like what your shooting for drive to the track and drive home and it sounds like you already have some track experience. First 3 things you should always do when setting out to build a track/street car. #1 safety #2 safety #3 reliability. None of these are real sexy like aero parts or wheels and brakes unfortunately; They are for the most part the unseen parts and procedures that will keep you safe and make track days more enjoyable. If i remember correctly you already purchased APR? APR stuff is more vanity based they are not true race designed and engineered aero parts, BUT they also dont cost what real race parts do. So you can work with the APR stuff as long as you know the limitations.
    Since your more track then street a proper cage with window net should be near the top of your list . On board fire system. Not a fire extinguisher secured to your passenger seat a real push or pull fire system with minimum 10lb bottle or equivalent . Proper seat with proper harnesses and mounts (safety and makes easier to drive). Engine oiling system should also be in the list . Camber caster lock out plates with correct suspension bushings ( saves alot of money on setup redos) Trans breather, engine wire harness heat shielding (reliability). Once you address all your safety and reliability issues then its time for all the racey eye candy sexy parts.
    These are just SOP suggestions Dennis

  15. #15
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    Quote Originally Posted by Hawk View Post
    I’m the 4th owner of this car and the first two guys lost money on the sale and hardly drove it, not my idea of a good time
    "First 2 guys"

    Look forward to seeing what you decide to do with her!

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    Quote Originally Posted by TKO MOTORSPORTS TEAM View Post
    So 80% track car sounds like what your shooting for drive to the track and drive home and it sounds like you already have some track experience. First 3 things you should always do when setting out to build a track/street car. #1 safety #2 safety #3 reliability. None of these are real sexy like aero parts or wheels and brakes unfortunately; They are for the most part the unseen parts and procedures that will keep you safe and make track days more enjoyable. If i remember correctly you already purchased APR? APR stuff is more vanity based they are not true race designed and engineered aero parts, BUT they also dont cost what real race parts do. So you can work with the APR stuff as long as you know the limitations.
    Since your more track then street a proper cage with window net should be near the top of your list . On board fire system. Not a fire extinguisher secured to your passenger seat a real push or pull fire system with minimum 10lb bottle or equivalent . Proper seat with proper harnesses and mounts (safety and makes easier to drive). Engine oiling system should also be in the list . Camber caster lock out plates with correct suspension bushings ( saves alot of money on setup redos) Trans breather, engine wire harness heat shielding (reliability). Once you address all your safety and reliability issues then its time for all the racey eye candy sexy parts.
    These are just SOP suggestions Dennis
    Dennis,
    You are such a Debbie Downer! LOL. 100% all valid and needed upgrades. I would also second the notion that driving classes and skill level would be a good investment. Although I know nothing about his skill level, speaking from experience I know my TA 2.0 has more to offer and I don't have the skills to maximize it yet.

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    Quote Originally Posted by speedtactics View Post
    Dennis,
    You are such a Debbie Downer! LOL. 100% all valid and needed upgrades. I would also second the notion that driving classes and skill level would be a good investment. Although I know nothing about his skill level, speaking from experience I know my TA 2.0 has more to offer and I don't have the skills to maximize it yet.
    Ya I know... I hate being Debbie downer emphasizing safety over sexy cool parts. I have seen alot of people hurt and had a few friends killed in amateur and professional motorsports. Motorsports is a small world and I dont want to see anyone break, get hurt or worse especially when we might be on the same track one day.

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    Quote Originally Posted by speedtactics View Post
    Dennis,
    You are such a Debbie Downer! LOL. 100% all valid and needed upgrades. I would also second the notion that driving classes and skill level would be a good investment. Although I know nothing about his skill level, speaking from experience I know my TA 2.0 has more to offer and I don't have the skills to maximize it yet.
    100% agree with you....... pro drive coaching. Saves alot of money in the long run


 

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