Jump to content
The mkiv Supra Owners Club

afr's and what they should be?


bigbloodyturbo
 Share

Recommended Posts

another afr question from me:) I have just driven my supra to the mot station after its been laid up for a while. I have a 5psi spring in the wastegate so max boost is 5-6psi on my single. I have stock fuelling except for a walbro. When I was driving it over to the garage I stretched its legs in 2nd and the afr's stayed at 14ish before hitting a threshold and almost instantly dropping to 12:1. I never kept the boost on as I don't want to damage anything but is this normal? I assumed it would drop down to 10-11:1 but then again its only seeing 5 or6 psi so maybe its not getting enough to make it go mad rich like a bpu car?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.