[Supras] Crazy Lex tuning thought

[Hacker J]

Bernie,

What you are proposing is effectively what the electronic fuel piggybacks do already by inserting
themselves between the ECU and the AFM.  I would suggest that instead of your mechanical approach,
you just buy a Apeci SAFC, MAFTPro, or any other supra compatible fuel piggyback and then you will
be able tweak the AFM gain as a function of rpm, load and so on with more flexibility and
convenience than any mechanical bypass valve would allow.

Jon
90T


> 
> OK.  First, I'll expect the nice men with white coats and the extra large leather jacket at the
> door when this is read.  
> 
> Now for the nutzoid question:  has anyone ever used a boost pressure operated bypass valve
> around the AFM (Lex which I'll be using, although the same should apply to the stock sensor
> body) to provide a slightly leaner mixture at WOT?  If the bypass is sized to provide perhaps
> 15% of the AFM flow, it would lean the mixture from 9.5:1 to about 11:1 when in open loop at
> WOT.  
> 
>       BernieK
> 
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