Close

    • Strength of the supercharged E92 M3 S65 V8 top end - DCT M3 puts buslengths on a Ferrari 458 Italia

      Many people look at the M3 torque figures and horsepower and think peak numbers tell the whole story. Well, they do not. The M3 motor when massaged with a little boost becomes an absolute best namely up top with a centrifugal blower which builds boost with RPM. The M3 revving to 8400 rpm in stock form when paired with this style of blower makes for a very strong roll on racing car. Don't believe me? Check out the video below of a 458 Italia being blown away on the highway.


      Now the 458 Italia is no slouch. It's a very fast car even in stock form. This M3 is packing some heat though running an ESS-VT2 625 supercharger kit with a different pulley for more boost for an output of 613 horsepower at the wheels. The owner posted his dyno graphs with various pulleys showing the effect on output.

      With 613 horsepower at the wheels and a dual clutch transmission just like the Ferrari it is no contest considering the 458 Italia is down roughly ~150 horsepower at the wheels and it shows.

      Thank you to @BlownE92M3 for the video.

      This article was originally published in forum thread: ESS 625 @ 9psi vs Ferrari 458 Italia started by BlownE92M3 View original post
      Comments 48 Comments
      1. Sticky's Avatar
        Sticky -
        613 wheel horsepower at elevation can't trap 130 but less than 613 wheel horsepower can trap 130?
      1. LostMarine's Avatar
        LostMarine -
        Edit, read the rules: http://www.germanboost.com/showthrea...1516#post51516

        what was uncorrected again, barely 500 right? the car i would assume is doing 122-125mph up there. at a true 613 hp, 130+ mph is easy.. at sea level, or near it.. 458 is probably barely 120 up there
      1. Sticky's Avatar
        Sticky -
        Guy is making 613 wheel horsepower SAE correct at his elevation and barometric pressure not at sea level. Why he would trap less than cars making less power running 130 at sea level when he's making even more power at elevation?

        At sea level, he would trap even more as his wheel horsepower at 9 psi would much higher than 613 whp considering that 600 whp can be hit at lower boost. So 9 psi on a stock internal M3 is going to make for a very strong car.
      1. ezec63's Avatar
        ezec63 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Guy is making 613 WHEEL HORSEPOWER at his elevation, not at sea level. Why he would trap less than cars making less power running 130 at sea level when he's making even more power at elevation I have no clue.

        At sea level, he would trap even more as his wheel horsepower at 9 psi would much higher than 613 whp. Wow.
        I think what lost is trying to say is he's not really putting down 613 to the wheels at his elevation. That number is corrected in SAE so its standardized to equalize reading and show what he should be putting down @
        Air Density: 1.157kg/m3
        Relative Air Density: 94.4%
        Density Altitude: 1952feet
        Virtual Temperature: 77F
        Vapor Pressure: 0 inches Hg

        His uncorrected number would look a lot different where he's at.
      1. ezec63's Avatar
        ezec63 -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        Edit, read the rules: http://www.germanboost.com/showthrea...1516#post51516

        what was uncorrected again, barely 500 right? the car i would assume is doing 122-125mph up there. at a true 613 hp, 130+ mph is easy.. at sea level, or near it.. 458 is probably barely 120 up there
        ^^ not sure if thats what ya meant but thats the way i look at it correct me if I'm wrong
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ezec63 Click here to enlarge
        I think what lost is trying to say is he's not really putting down 613 to the wheels at his elevation. That number is corrected in SAE so its standardized to equalize reading and show what he should be putting down @
        Air Density: 1.157kg/m3
        Relative Air Density: 94.4%
        Density Altitude: 1952feet
        Virtual Temperature: 77F
        Vapor Pressure: 0 inches Hg

        His uncorrected number would look a lot different where he's at.
        I'm sure that is what he's trying to say but look at the SAE corrected numbers stock, modded, then supercharged:

        Click here to enlarge

        Notice the correction factor for SAE does not boost the car up to sea level SAE numbers. Why not?
      1. Sticky's Avatar
        Sticky -
        I haven't seen any uncorrected numbers from his car but the SAE corrected number all show much lower even though one would think SAE correction should read the same no matter what but it isn't here...
      1. Sticky's Avatar
        Sticky -
        Keep in mind temperature and barometric pressure have an effect as well. It's difficult to completely standardize as the numbers show.