WinSU 2.6.1.8215 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. WinSU is compatible with Windows XP/7/8/10/11 environment, 32-bit version. WinSU belongs to System Utilities.
The most popular version among WinSU users is 2.6. The actual developer of the free program is WinSU. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The program's installer files are commonly found as WinSU.exe, Winsu100.exe, Winsu90.exe or _294823.exe etc.
From the developer:
WinSU is a computer program which contains information about SU carburettor needles. The taper of the needle inside an SU carburettor dictates how much fuel is delivered for a certain engine speed and load. It is vitally important that this taper is correct for the engine specification.
WinSU will suggest the best needle and dashpot spring for your engine specification and allows different needle profiles to be graphically compared.
You may want to check out more software, such as TweakXP Tweaking Utility, UpdateScanner or Disk Washer, which might be similar to WinSU.