• Registered users are encouraged to enable MFA/2FA to add an aditional layer of security to their account. More information can be found here: https://www.ncsc.gov.uk/collection/top-tips-for-staying-secure-online/activate-2-step-verification-on-your-email

Search results

  1. I

    70 or 74mm intake manifold & throttle body?

    No the tb isn't a restrictive part on a k20,even with port matched intake manifold any gains are minimal and not worth it.
  2. I

    70 or 74mm intake manifold & throttle body?

    And as for 70mm rbc,well that's just the tb part ported so pointless. It's only when you cut them open and bore out the runners that there are any gains.
  3. I

    70 or 74mm intake manifold & throttle body?

    The biggest gain ive ever seen a tb give on a k20 with basic bolt ons us around 3-4hp,but usually it's 1-2hp. I did read a post from America once about swapping out a 62mm tbgoing to 74mm tb and after mapping made 0.6hp . I ran oem tb at 320hp on my charged dc5 and oem tb on my charged fn2 at...
Back
Top