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Discussion Starter #1
If I have a intake, downpipe, lexus afm, and some 550cc injectors do I need a fuel controller or something along those lines. Some people say I do some say I dont just wanted to see what you guys think.
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Supra's with the upgrades you list have a tendency to run rich from 4000 rpm up. You can pick up quite a bit of rwhp by dyno tuning with an s-afc or an e-manage or s-afr.
 
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Even an adjustable fuel pressure regulator would do you some good....
 

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Discussion Starter #5 (Edited)
Ya I think I am going to pick up an s-afc for the tuning. With these upgrades and 10psi what do you think the rwhp is around? Also which s-afc do you recommend for the mkiii or does it matter.
 
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