bigbloodyturbo Posted June 4, 2012 Share Posted June 4, 2012 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? Quote Link to comment Share on other sites More sharing options...
hodge Posted June 4, 2012 Share Posted June 4, 2012 You'll find if you floor the car then it will drop to 11. If your about 3/4 throttle it will stay high 11s low 12s. Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted June 4, 2012 Author Share Posted June 4, 2012 You'll find if you floor the car then it will drop to 11. If your about 3/4 throttle it will stay high 11s low 12s. ahh ok, well if it passes its mot tomorrrow it'll be getting a set of 880's and a syvecs next week lol. Is it ok to run 800s or 880's with a stock fpr? Quote Link to comment Share on other sites More sharing options...
hodge Posted June 4, 2012 Share Posted June 4, 2012 Yeah that's fine as long as its mapped right. Quote Link to comment Share on other sites More sharing options...
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