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MCS is the new supplier for NASA Spec Iron Suspension

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  • MCS is the new supplier for NASA Spec Iron Suspension

    News that a new spec shock package was approved for NASA Spec Iron class was announced in this thread on the NASA forums:

    Technical Bulletin: Spec Iron switches to new Motion Control Suspension Shock Package

    Effective: 6/27/15

    HVT has stopped providing shocks to the Spec Iron class recently however will continue to service existing shocks. NASA will continue to allow existing HVT kits.

    MCS will now be providing the shock package to Spec Iron under the part number #SET-1WNR-NSI-S-01 with spring hardware options. These kits can be ordered from any Motion Control distributor. www.motioncontrolsuspension.com

    The rulebook should be updated within the week.
    That was followed by an updated spec camber plate for the same series (which is unchanged except for the bushings and perches necessary to fit the MCS shaft and spring size):

    Technical Bulletin: Spec Iron switches to Maximum Motorsports camber plates

    Effective: 6/27/15

    FRPP has stopped selling the M-18183-B camber plates. Nasa will continue to allow existing FRPP kits.

    Maximum Motorsports will now be providing the camber plates for Spec Iron under the part number #MM5CC-7. These kits can be ordered direct from MM or its dealers. www.maximummotorsports.com
    I'm both happy and sad that the MCS was chosen as the new Spec. Sad because we had bid a lower cost suspension option for Spec Iron using Bilstein monotubes converted to coilovers, but lost out to the MCS TT1 (S197 TT1 set shown below). Happy because we're one of the biggest MCS dealers and the MCS kit is a better overall package for competitors. Didn't win the camber plate spec, but you can't win em all.



    As many of you trying to build a new Spec Iron Mustang right now know, the old "spec shock" for SI is no longer available, so NASA had to make a change or there could be no more new SI cars. The HVT setup was not half bad (monotube coilover designed for lower ride heights) but switching the spec to a low-end Koni OEM style strut/shock and a lowering spring (as some called for) would have been a huge step backwards. The off the shelf Koni struts are way too long and when lowered have almost no bump travel. Lowering springs are also just too soft (only 0-100% stiffer than the stock front springs) and a coilover spring has the potential for a lot more rate (+350% is where we start up front), to decrease brake dive, roll and keep the front end planted. Allowing a Koni + Lowering spring spec alongside the old HVT monotube suspension would have given the existing SI cars with the HVT coilovers a huge advantage unless they were banned. Banning the HVT system would be forcing ALL of the existing SI cars to upgrade just 2 months before NASA Nationals East.


    Vorshlag employees know MCS coilovers because many of us have them on our own cars

    Allowing the old HVT shocks alongside the new MCS spec was probably the best choice for the new Series Director. There won't be a massive difference in potential performance between the two, and new SI builds can get something as good or better than existing Spec Iron cars quickly.


    NASA previously chose the MCS TT1 shock and Vorshlag camber plate for Spec E46 class

    The MCS "single adjustable non remote" (aka TT1) coilover is a properly designed monotube strut and shock combo with no shortcuts, tricks, or design flaws. It is assembled in the USA by the same crew who designed, built and ran Moton for a dozen years, just without remotes and with single adjustment (the TT2 is a double adjustable version of this same design). The parts are all made in-house at MCS or in Holland or Germany. These sets can be purchased from any MCS dealer, of which we are one.


    The first MCS production S550 Mustang TT2 kit, built around specifications from Vorshlag, is already winning races

    We have worked with MCS to make a lot of new shock offerings for their TT1 and TT2 monotubes, and they understand what racers need in a Spec class like this: performance, reliability, a good damping adjustment range, the right amount of bump/rebound stroke at the ride heights allowed, and good support after the sale. We've been selling the MCS setup for the S550 Mustang (above), which we helped specify and design, and they work great. SpecE46 went to the MCS TT1 coilover (and Vorshlag camber plates) and those racers have been very happy with the performance, reliability and adjustability of that system.



    There was some question early on as to the rear spring location, but we have the answers from MCS and NASA. The rear shock for this new kit is still an "eye to eye" shock, made for use with coilover springs, which will look very similar to the image above. Vorshlag will be ordering these rear shocks to use a 2.25" ID rear spring, which gives the best inboard rear wheel room for a coilover shock. We also have the Ford Racing "pin-to-eye" shock mount available as an option, which is also required by the class rules.



    The camber plates are still the same Maximum Motorsports The NASA Spec Iron series was built around a lot of parts in the Ford Racing catalog. Ford sponsors the series and pays out contingency, and since the Maximum Motorsports MM5CC-7 plates (shown above) used to be in the Ford catalog, they are still required for use in Spec Iron class. Vorshlag is a Maximum Motorsports dealer and we are offering these as an option with the $2650 MCS Spec Iron shock kit. If you choose the optional Camber Plates for this Spec Iron kit, we will include the required plates (+$347) and the upper spring perches to match the MCS strut shaft profile (+$87). These front upper spring perches and the struts are made to accept 2.5" ID coilover springs.




    There are other optional bits and pieces needed to make this MCS part number fit your S197 Spec Iron chassis, like with any shock kit. Vorshlag offers a shortened front endlink that fits the relocated swaybar bracket on the front strut, Hyperco springs in the right diameters and lengths (and your choice of rates) to fit the shocks, and we even include a tool kit that other MCS dealers don't - because we make the tools here at Vorshlag. A pair of our MCS/Moton specific spanner wrenches we designed and built are included free with every MCS kit.


    Vorshlag S197 has set 16 track records in NASA TT3, with most of those on MCS RR2 remote reservoir double adjustables

    So in the end, it was a smart move by the NASA directors to move Spec Iron to this new MCS shock set. A reliable supplier was necessary for the growth of the class, and MCS is already dominating many Pro series classes across America. MCS makes a damned good monotube adjustable shock, which we have used to win a lot of races with on a variety of S197 Mustangs. Vorshlag has a comprehensive product entry (click the image below) for the Spec Iron shock kit and all of the optional parts needed to make them fit the class eligible 2005-2010 Mustang GTs.



    If you have any questions feel free to call us at 972-422-7170. Any of our sales or engineering staff can answer your questions about the Spec Iron MCS kit, and we have all the specifications for the parts needed to install these on your car: the springs, plates, perches, endlinks, and tool kit.

    Cheers,
    Terry Fair - Vorshlag Motorsports
    Last edited by Fair!; 07-15-2015, 12:09 PM.
    Terry Fair - www.vorshlag.com
    2018 GT / S550 Dev + 2013 FR-S / 86 Dev + 2011 GT / S197 Dev + C4 Corvette Dev
    EVO X Dev + 2007 Z06 / C6 Dev + BMW E46 Dev + C5 Corvette Dev
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