Posts by Dave@DDMWorks

  • Amazon order issue

    Unless it is prime, I do not order it on Amazon anymore. I had this happen once to an order we placed, it took almost 3 weeks to arrive and there was no update on the tracking. Good luck with it!

  • DDMWorks Cyber Monday deals are ready!

    The Cyber Monday deals are here! This is some of the best deals we have ever offered on some of these products!



    POLARIS SLINGSHOT COOLANT TANK
    Reg $145 ON SALE $120 with FREE Coolant Re-route!


    POLARIS SLINGSHOT ALUMINUM SHIFT KNOB
    Reg $45 ON SALE $25 and FREE SHIPPING*!


    POLARIS SLINGSHOT FIREWALL FINISH PANEL
    Reg $39 ON SALE $25 and FREE SHIPPING*!


    POLARIS SLINGSHOT DOUBLE NUT COVER
    Reg $40 ON SALE $25 and FREE SHIPPING*!


    POLARIS SLINGSHOT PADDED AND UPHOLSTERED CENTER CONSOLE
    Reg $195 ON SALE $137


    POLARIS SLINGSHOT WINDSHIELD SUPPORT
    Reg $95 ON SALE $75 and FREE SHIPPING*!


    POLARIS SLINGSHOT COLD AIR INTAKE WITH HEAT SHIELD
    Reg $325 ON SALE $199


    POLARIS SLINGSHOT SUPERCHARGER KIT
    Reg $4900 ON SALE $4650.00
    ONLY 2 KITS AVAILABLE AT THIS PRICE!

  • Cyber Turkey Flash Sale - Short Shifters only $69!

    Our flash sales start now for Black Friday, during the day today and on Monday, we will be doing flash sales that offer the best savings on some of our most popular items. These flash sales are for a limited quantity, once that quantity sells out, it is back to the normal sales price, so act fast!


    DDMWorks Short Shifter - Only $69!

    Order by following the link below, no coupon code is needed!


    Short Shifter by DDMWorks


    There are only 10 units at this very special pricing!


  • DDMWorks Built Ecotec Engines V2

    Quote from iNewton

    So you are using a LCV block and using LE9 crank rods and pistons or keeping the stroke of the LCV?

    We have used the LDK blocks with the bore changed for the 2.4L and the LEA blocks with some machine work needed to get it all to work correctly in the Slingshot. The bore and stroke are still maintained the same as the stock LE5/LE9 engine (technically the bore is changed slightly with the custom oversized pistons we use by .5mm, but basically the same bore). It is a little confusing though since the LDK and LEA are technically a 2nd gen block based on the Wiki page, however other vendors and customers have always called these block a "3rd gen" block, not sure how that started, but in the Solstice/Sky/Cobalt world that is how these blocks are referenced. There was a change to the 2nd gen blocks with the introduction of the LDK, LEA and LAF block from Opel that included the upgrades to the block listed above, so really these blocks would be more of a gen 2.5 block, but like I said, other vendors call it a gen 3 block. The true 3rd gen blocks didn't start until the LTG and LCV, but those blocks are completely different than the 1st and 2nd gen Ecotec blocks and are not interchangeble into the Slingshot since they switched the sides for the intake and exhaust on those engines along with a lot of other changes.


    Hope that helps,
    Dave

  • Life just cannot get better!!!

    Quote from lowlander

    Yesterday we arrived at our place in Florida. Great drive from Nova Scotia. Picked up my QA1 coilovers yesterday from Hahn’s shop. But the best thing - since we went north in the spring, Zephyrhills acquired both Harbor Freight AND Rural King stores!! The only things that could make life even better are if Tim Hortons, Canadian Tire and Princess Auto also opened up shop here.

    Mmmmmmm, Tim Hortons, makes the trips to Michigan worth it :)

  • DDMWorks Built Ecotec Engines V2

    We have been building engines for the Slingshot now for awhile and constantly working to provide a better product. We are now offering our new V2 engines with a lot of little upgrades that will provide even more reliability to the built engines we do. Some of these upgrades include bronze valve guides for the valves, Viton seals for the valve guides, all 8 intake valves and all 8 exhaust valves are replaced with new units, new GM oil pumps, improved coolant flow through the cylinder head and addition of an option for the Gen 3 blocks as an option.


    What is a gen 3 block you may ask? Well, the original LE5/LE9 engine found in the Slingshot has its block cast by a process called "lost foam". During this process a styrofoam engine core is placed in sand and molten aluminum is poured into the mold were the aluminum replaces the styrofoam. If you look closely at the side of the stock engine, you will see the surface looks like styofoam because of this process. This lost foam process allowed GM to cast a complicated engine relatively easily, however it was found to cause a weak point that can allow small cracks to form in the block. This led GM to improve the block during the next revision with a sand cast version of the block. The new 3rd gen sand cast block gives a more uniform finish in the block and is less prone to cracking found in the lost foam castings. GM didn't just stop there though with that improvements to this block, they also added more material to the inside of the block to strengthen the block internally. The most important upgrade however came to the cylinder bores themselves. The stock LE5/LE9 has floating cylinder bores, which mean that the top of the cylinder bores are not secured to the block, the new 3rd gen blocks added material at the top of the cylinder bores to bridge and stabilize the tops of the bores. This bridge also increased the amount of aluminum around the top of the bores to help strengthen the cylinders even more against higher cylinder pressures found with high horsepower builds.


    The new engines are still built to order and we have some other options we have been testing, once we are confident with those we will be offering those also!


    Built Slingshot 2.4L Ecotec Engine by DDMWorks


    If you have any questions, just let me know,
    Dave



  • Catalytic converter delete

    Quote from kev

    That's interesting, I thought I read some posts from @Dave@DDMWorks talking about the stock exhaust manifold not being very restrictive, from way back in their ECOTECH DAYS prior to the Slingshot . Did I get that right Dave or are we now of the opinion stock is restrictive enough to warrant a header when staying normally aspirated with just a tune and a cat delete ?

    The stock exhaust manifold is not that restrictive and actually works pretty decent. After Maggie Valley this year, Bob came back here and we were on the dyno for a couple days solid, testing all kinds of combinations of header, intake, exhaust and tune and by far the 2 things that consistently gained significant power were - Tune and exhaust without the catalytic converter. All the intakes we tested (Stock, SLR, DDMWorks, HAHN and Alpha) had very minimal gains and the same with the headers. If you have a naturally aspirated Slingshot and just want power gains, install any exhaust without the catalytic converter and get a tune, the rest is just going to be for appearance. We only recommend the header when going to the 300hp setups on our supercharger kit to help keep the exhaust flowing out of the engine a little better at that point, but the stock manifold is not needed on our base supercharger kits.


    Hope that helps,
    Dave

  • Slingshot engine options

    My guess right now is that there will be 2 engine options from Polaris when they switch to the next generation, with the base versions getting naturally aspirated engines and the SLR,etc getting a turbo option. A naturally aspirated 2L engine and maybe a 2L turbo based off of their Prostar 952cc engine currently in production. If you use the same bore and stroke of that engine and change it from a 2 cylinder to a 4 cylinder you end up with just under 2L displacement making roughly the same power that the 2.4L currently makes in the Slingshot now. Polaris also might take their Prostar turbo engine in production now and could turn that into a 3 cylinder and make around 250hp or they could once again add 2 cylinders to it and run lower boost and get around 300hp. The other option might be to install just the Prostar turbo engine in a base slingshot in its current form, which makes 168hp which is close to the 2.4L, but with the turbo it would have more midrange torque than the 2.4L and actually drive very similar to the current setup. Plus that engine has been out for a while now and should have most of the kinks figured out or at least being worked on at this point. Also, since it is in production already there is no extra cost associated with development of a new engine just for the Slingshot and also they can possibly drop their cost on the engine with the higher production numbers that including it on the Slingshot would do. I am guessing that it will not be a completely new engine just for the Slingshot as that is a lot of design work and risk for relatively low production numbers. Just guesses, but I am sure it will be interesting and looking forward to see what they come up with and some new toys to play with!

  • Factory Sway Bar Upgrade

    I did a quick search and the part number on that - 9.5164 - that is for a 1 1/8" bar, the stock bar is 1 1/4" the same as all of the aftermarket bars. The part number is 9.5165 which will be for the 1 1/4" bar. If you put an "R" at the end they will be red, if you put a "G" at the end the bushings will be black.


    Hope that helps,
    Dave

  • Motorcycle Toy Run - Toys For Tots - Greenville

    Sorry, I have been traveling and just catching up. I probably will not be available this on the 19th as I will most likely be out of town again. Jeff gets back tomorrow and I will mention it to him also to see if he can make it. Thanks for tagging us!

  • 80 MPH top speed

    If the accelerator pedal does end up being the problem, it is definitely not the first one to fail. We have been keeping an extra one here since we had to help diagnose another failure of the accelerator pedal on another Slingshot, let us know how it works out for you and if that does solve your problem.