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Observations of SVO vs. new Ecoboost during the Reunion trip....

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  • Observations of SVO vs. new Ecoboost during the Reunion trip....

    So since I am still trying to get parts from Griggs which have been unavailable for some time, I had to take the new Shop mule '20 Ecoboost to the Reunion. I had never tossed it around an autocross before thanks to the brake pedal bracket recall I had to wait on. Ty and I drove up to Chicago and noticed that at each fuel stop with speeds around 75mph we were within a gallon of each other filling up and the Eco was showing 29mpg avg. That shows how far ahead of it's time the SVO was...even with Ty's car modified he was getting some great fuel economy! Now on the way back we crested into the low to mid 80's and that's where the mileage started getting farther apart with me still getting 29mph.

    The new Mustang is much larger than the SVO, I've noticed being used to foxes that I am often off getting lined up in parking spaces so I was worried about wiping out cones with the wider car. Curb weight of the Ecoboost coupe is 3542 lbs so it's a bit heavier than the SVO. Now mine is the 10 speed automatic and before you give me crap for getting an auto...a few factors led to this decision. I drove a McLaren around Barbers with paddle shifter and it was great...so once I found out in my early exploration that the Eco had paddle shift I knew I could still track it. The wife pushed for an auto and since I made her the owner of the business over 20 years ago I took that into consideration. For drag racing you can't beat the auto....it just pulls and pulls. The car bone stock managed a 13.3 @ 104mph in the quarter first pass which was impressive imo. But the autocross was going to be a challenge in an automatic regardless. So there are a few options and I chose Sport + mode over Track because it was a fast course with a sealed lot and I didn't want to step the back end out as always seems to be the case with the Evolution SVO and sport + keeps some traction control. I tried manual shifting it with the paddles but it seemed too delayed in command so I switched back to letting it shift on it's own. I was on 300 treadwear Federal Evoluzion tires and I didn't change tire pressure at all. The car pushed a lot and while the back end did come loose the traction control helped keep it planted....so the biggest issue seemed to be the pushing. But no cones were harmed so I'll consider that a win!

    In the end and these times are from Memory as they haven't posted the results yet....the fastest SVO was Doug at I think a 39.6 followed by Ted with a 39.9 and I came in at a 40.9 with the new Eco just edging out Bruce but Bruce also popped a head gasket and didn't have the afternoon run to try to better his time. So all in all still really close group as always seems to be the case each year.

    So in the future if you're SVO is down for any reason and you have an ecoboost Mustang(essentially the modern SVO), bring it out and we can pitch a new vs. old competition at the autocross....In the meantime I'm ordering swaybars and a set of springs for the new car.
    SVP Unlimited

  • #2
    I went head to head in Tulsa on the drag strip with a 2019 Ecoboost and he ran 14.3 at 101? I also ran 14.3 at 101 in my modded 86. I wonder where you found a second.
    Bruce

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    • #3
      Originally posted by Bruce View Post
      I went head to head in Tulsa on the drag strip with a 2019 Ecoboost and he ran 14.3 at 101? I also ran 14.3 at 101 in my modded 86. I wonder where you found a second.
      Depends if his car had the 101A package with track modes. I had mine set in drag race mode. If he had a base model then there is no choice other than basic slow mode. Also if he had been running back to back and had a stock intercooler he could slow down from heat soak but I didn't experience that kind of loss. I still have an intercooler for it but just haven't had the time to install it...I need to do that.
      SVP Unlimited

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      • #4
        I know you were in it just for fun, but you could have probably tuned some of that push out with some more air in the tires, especially the fronts. In a camber-limited car, slowing the camber change as the tire rolls over helps a LOT. We were running ~50 psi front on our 86 when we autocrossed it on Kuhmo Victoracers. It seemed very happy there.

        I have always wondered about the EB cars. They're not on the list for a new car, not much is this late in life, but good to know, if only for a rental. ;-)

        Gene Beaird,
        86 2R SVO, G Stock,
        Pearland, Texas

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        • #5
          Originally posted by gbeaird View Post
          I know you were in it just for fun, but you could have probably tuned some of that push out with some more air in the tires, especially the fronts. In a camber-limited car, slowing the camber change as the tire rolls over helps a LOT. We were running ~50 psi front on our 86 when we autocrossed it on Kuhmo Victoracers. It seemed very happy there.

          I have always wondered about the EB cars. They're not on the list for a new car, not much is this late in life, but good to know, if only for a rental. ;-)
          Good point...I was nowhere near prepared to do much of anything to the car at that event. I have seen purchased a set of TEIN Springs for it, they are about the only company that has an EB specific spring, everyone else lists it for a GT and says "will fit EB"...and we all know that just because it fits doesn't mean it's right for the car. Next purchase will be swaybars as well but I have a mounting pile of parts I already need to find time to install. I've got 2 GT500's hogging the lifts at the moment then maybe....but I am purchasing another lift for the warehouse which may help with some of the downtime caused by cars waiting on parts at times. I'm really more pleased with this car than I thought I would be.....I haven't found myself wanting a GT and the new BNR turbo which is about 2 months out will be a game changer...made 609RWHP on the test car after we test fitted it on mine. Time to get the new engine built as I'd surely blow up the stock one at that kind of power level.
          SVP Unlimited

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          • #6
            Yeah, 'will fit' usually means 'you might as well start fabbing it up yourself', and/or is just a means of getting more sales. Part of our shop is for 'spares' = the parts the manufacturer said would fit, but really didn't.

            Wow, 600 RWHP from a 2.3?!? That's amazing.
            Gene Beaird,
            86 2R SVO, G Stock,
            Pearland, Texas

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            • #7
              Yeah, the factory crankshaft is forged....so it's strong enough. The factory 2.3 Block is the weak link, it's an open deck block. The trick is to use the Fusion Twin scroll 2.0 block...everything goes right into that block. Then upgrade the rods and pistons and a Focus RS or Brian Crower Headgasket and you are in business. These things are really cheap to build compared to everything else out there....used blocks are cheap, brand new is only $650, Ford Racing Camshafts? Under $200 for the pair,
              SVP Unlimited

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              • #8
                Up until the SEB recommended a weight 'update' on boosted 4- and 6-cylinder engines in CP, sounds like it could have been a nice start for a CP overdog for autocross. Still may be, as the tech on turbo engines has really moved forward.
                Gene Beaird,
                86 2R SVO, G Stock,
                Pearland, Texas

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