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Old 06-02-2009, 09:43 PM   #1
88 supra turbo
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I just purchased a lexus afm Ls 400. Do I need to upgrade my injectors if i am running stock boost 6.8 psi. Some people said if you was not running high boost you dont have to upgrade your injectors. I read also some people said the afm sensor on the lexus Ls 400 would work without swapping you stock one. I also was wondering about the adjustment screw inside the lexus afm. It has the factory screw but I was reading that you need a longer one. Any info. would help.
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Old 06-03-2009, 01:20 PM   #2
mirage83
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Generally speaking when you run that much more air into your engine without upgrading your injectors to deliver more fuel, you run lean. Run the 7M lean and you're going to do real damage to it.

Don't know about a direct swap or the adjustment screw.
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Old 06-10-2009, 04:05 PM   #3
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the lexus allows more un-metered air to flow you'll notice the by-pass portion is larger than the stock has . I don't know of any options to purchase an adjustment screw , you'll have to make one
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